Robin L. DeBruyne Edward F. Roseman Stacey A. Ireland 20240911 tabular digital data Reston, VA U.S. Geological Survey Robin L. DeBruyne, U.S. Geological Survey, Great Lakes Science Center, ORCID ID:0000-0002-9232-7937; Edward F. Roseman, U.S. Geological Survey, Great Lakes Science Center, ORCID ID:0000-0002-5315-9838; Stacey A. Ireland, U.S. Geological Survey, Great Lakes Science Center, ORCID ID:0000-0001-8568-8980 https://doi.org/10.5066/P9DWPIH0 This dataset contains data collected on various vessel operations on the Great Lakes and their connecting channels, primarily the St. Clair River, St. Marys River, Lake St. Clair, Detroit River, and Lake Erie, although other locations have been sampled and included in this dataset. This dataset contains the field variables, environmental conditions, larval catches (numbers), larval fish identifications, larval fish measurements, and associated auxiliary information with the sampling locations. The data were collected to assess fish early-life history phenology, including larval fish drift and community composition of the sampled water bodies. Appropriate use of these data include species presence/absence, species phenology, species density, and comparisons over time and between sampled water bodies, provided the specific methods of collection and laboratory processing are appropriately comparable. This dataset will be updated as needed with possible additional species, sampled water bodies, and field collection data. 20060320 20230101 ground condition Planned As needed Great Lakes drainage basin -85.1221 -75.9375 46.9203 41.2448 ISO 19115 Topic Category biota inlandWaters environment USGS Thesaurus phenology habitats fish community ecology aquatic biology aquatic ecosystems National Agricultural Library Thesaurus fish larvae Coregonus clupeaformis Sander vitreus Perca flavescens Acipenser fulvescens Marine Realms Information Bank lampreys None lake whitefish walleye yellow perch burbot lake sturgeon Great Lakes connecting waters USGS Metadata Identifier USGS:65118c07d34e823a0275db98 Geographic Names Information System Saint Clair River Detroit River Lake Huron Lake Erie Lake Saint Clair Saint Marys River ITIS Osteichthyes Petromyzontiformes Kingdom Animalia animals Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata chordates Subphylum Vertebrata vertebrates Infraphylum Gnathostomata Infraphylum Agnatha Class Cephalaspidomorphi lampreys Order Petromyzontiformes lampreys TSN: 159696 No data access constraints. No data use constraints Robin L DeBruyne U.S. Geological Survey, MIDCONTINENT REGION Fish Biologist mailing address

1451 Green Rd

Ann Arbor MI 48105 US 734-994-3331 734-994-8780 rdebruyne@usgs.gov Funding provided by the Great Lakes Restoration Initiative and the U.S. Geological Survey. Edward Roseman Robin L DeBruyne Stacey A Ireland 2020 dataset https://www.sciencebase.gov U.S. Geological Survey Previous version of data. https://doi.org/10.5066/p9pyejny R.L. DeBruyne Z.A. Amidon M. Angelosanto E. Eberly D. Gorsky S.A. Ireland C.M. Mayer S. Provo H. VanScoyoc J.M. Watkins E.F. Roseman 20240101 publication Aquatic Ecosystem Health &amp; Management vol. 27, issue 1 n/a Michigan State University Press ppg. 98-115 https://doi.org/10.14321/aehm.027.01.98 Zachary J. Amidon Robin L. DeBruyne Edward. F. Roseman Christine M. Mayer Alexis Sakas 20240101 publication Aquatic Ecosystem Health &amp; Management vol. 27, issue 1 n/a Michigan State University Press ppg. 85-97 https://doi.org/10.14321/aehm.027.01.85 There were no official tests performed on the electronic data. All data entry was double-checked when entering, by two individuals when possible. Once digitally entered, patterns in the data were looked at to find any extreme outliers and then those data were cross-checked with the original field and laboratory sheets. Any outliers or suspected inaccurate data were noted in the comments field. Larval fish identifications were done by trained personnel and there were identification quality checks done randomly throughout the sample identification process. It is assumed that after these quality checks, the final data has an accuracy of at least 95%. Digital measurements of larval fish are expected to be +/- 0.02 millimeters and total length measurements for non-larval fish are expected to be +/- 1 millimeter. Most values fall within the expected range. All data entered have been double-checked, so any data points that are outside of the expected range are true. Data have been checked for data duplication/omission. Any outliers or suspected inaccurate data were noted in the 'Comments' column of the relevant data table. These data only represent larval fish catches and their related catch and laboratory information from the specific geographic area from which that sample originated. Latitude and longitude were checked by mapping locations and ensuring they are correct based on field sampling landmarks and located within water areas. None. Taaja R. Tucker Edward F. Roseman Robin L. DeBruyne Jeremy J. Pritt David H. Bennion Darryl W. Hondorp James C. Boase 201812 publication Canadian Journal of Fisheries and Aquatic Sciences vol. 75, issue 12 n/a Canadian Science Publishing ppg. 2255-2270 https://doi.org/10.1139/cjfas-2017-0511 Digital and/or Hardcopy 20181201 publication date Tucker et al. (2018) Explanation and details of sampling protocols and methods Carl Hubbs Karl Lagler Gerald Smith 2004 publication Ann Arbor, MI University of Michigan Press https://doi.org/10.3998/MPUB.17658 Digital and/or Hardcopy 20041201 publication date Hubbs et al. (2004) Juvenile and adult identification methods E. F. Roseman J. Boase G. Kennedy J. Craig K. Soper 20111205 publication Journal of Applied Ichthyology vol. 27 n/a Wiley ppg. 89-92 https://doi.org/10.1111/j.1439-0426.2011.01828.x Digital and/or Hardcopy 20111201 publication date Roseman et al. (2011) D-frame sampling methods in large rivers N. A. Auer E. A. Baker 200212 publication Journal of Applied Ichthyology vol. 18, issue 4-6 n/a Wiley ppg. 557-564 https://doi.org/10.1046/j.1439-0426.2002.00393.x Digital and/or Hardcopy 20021201 publication date Auer and Baker (2002) D-frame sampling methods Taaja R. Tucker Robin L. DeBruyne Edward F. Roseman Douglas Larson A. Scott McNaught 201908 publication Journal of Great Lakes Research vol. 45, issue 4 n/a Elsevier BV ppg. 762-776 https://doi.org/10.1016/j.jglr.2019.03.010 Digital and/or Hardcopy 20191201 publication date Tucker et al. (2019) Methods for larval fish sampling with light traps Nancy A. Auer 19821201 publication Auer, N.A. (eds). 1982. Identification of larval fishes of the Great Lakes basin with emphasis on the Lake Michigan drainage. Great Lakes Fishery Commission, Ann Arbor, MI 48105. Special Pub. 82-3:744 pp. Digital and/or Hardcopy 19821201 publication date Auer (1982) Larval fish identification methods and protocols C.N.H. Lam J.C. Roff 197701 publication Journal of Great Lakes Research vol. 3, issue 3-4 n/a Elsevier BV ppg. 313-316 https://doi.org/10.1016/S0380-1330(77)72263-4 Digital and/or Hardcopy 19771201 publication date Lam and Roff (1977) Larval fish identification methods John E. Cooper 197801 publication Transactions of the American Fisheries Society vol. 107, issue 1 n/a Wiley ppg. 56-62 https://doi.org/10.1577/1548-8659(1978)107<56:IOELAJ>2.0.CO;2 Digital and/or Hardcopy 19781201 publication date Cooper (1978) Larval fish identification methods R. Fudge R.A. Bodaly M. Viljanen 19861201 publication Fudge, R., Bodaly, R.A., and Viljanen, M. 1986. Identification of larval lake whitefish (Coregonus clupeaformis) and cisco (Coregonus artedii), from southern Indian Lake, Manitoba by pigmentation characteristics and by isoelectric focusing of whole body protein extracts. Canadian Technical Report of Fisheries and Aquatic Sciences 1471, Fishes and Oceans, Canada, Winnipeg, Manitoba. Available from publications.gc.ca/pub?id=9.578336&sl=0. publications.gc.ca/pub?id=9.578336&sl=0. Digital and/or Hardcopy 19861201 publication date Fudge et al. (1986) Larval fish identification methods R. Wallus T. P. Simon B.L. Yeager 19901202 publication Wallus, R., Simon, T.P., and Yeager, B.L. 1990. Reproductive biology and early life history of fishes in the Ohio River drainage, Vol. 1 Acipenseridae through Esocidae. Tennessee Valley Authority, Chattanooga, TN. Digital and/or Hardcopy 19901201 publication date Wallus et al. (1990) Larval fish identification methods L.A. Kay R. Wallus B.L. Yeager 19941201 publication Kay, L.K., Wallus, R., and Yeager, B.L. 1994. Reproductive biology and early life history of fishes in the Ohio River drainage, Vol. 2 Catastomidae. Tennessee Valley Authority, Chattanooga, TN. Digital and/or Hardcopy 19941201 publication date Kay et al. (1994) Larval fish identification methods Thomas P. Simon Robert Wallus 20031229 publication n/a CRC Press https://doi.org/10.1201/9780203497647 Digital and/or Hardcopy 20041201 publication date Simon and Wallus (2004) Larval fish identification methods Thomas P. Simon 20051215 publication Description based on: v. 3 published in 2003. CRC Press https://doi.org/10.1201/9781420039580 Digital and/or Hardcopy 20061201 publication date Simon and Wallus (2005) Larval fish identification methods Robert Wallus Thomas P. Simon 20060602 publication n/a CRC Press https://doi.org/10.1201/9781420003604 Digital and/or Hardcopy 20061201 publication date Wallus and Simon (2006) Larval fish identification methods Robert Wallus Thomas P. Simon 20080709 publication n/a CRC Press https://doi.org/10.1201/9781420003611 Digital and/or Hardcopy 20081201 publication date Wallus and Simon (2008) Larval fish identification methods FIELD COLLECTION METHODS Larval fish were collected using a variety of gear, mesh sizes, and sampling duration, which are noted in the data tables. The methods used for each gear are described, however it is possible that some samples were taken using variations of the standard methods to adjust to specific sites, field conditions, or study objectives. Most samples were taken from small research vessels except light traps, which were set by wading from the shoreline. Flow meters (General Oceanics brand) were positioned in the mouth of each net (when possible) to estimate the volume of water sampled. Water temperature (degrees Celsius), Secchi depth (meters), and water depth (meters) were collected for each sample tow using an onboard GPS/depth sounder and a Secchi disk. All larval samples were rinsed from the sampling net or gear into a codend with the appropriate mesh size. Samples were double-labeled and preserved in the field with 95% ethanol. All larval samples were transported to the laboratory and put in cold storage. Juvenile and adult fish were identified to lowest taxonomic level based on Hubbs et al. (2004) and measured to neared millimeter using a hand ruler. DAYTIME SAMPLING Paired bongo nets, single ichthyoplankton nets, and neuston nets were typically towed in the upper two meters of water in a large circle or linearly at a speed of ~3.0 kilometers per hour for approximately five minutes (Tucker et al. 2018) or sampled stationary for typically 5 minutes or 7 minutes at bottom, middle, and/or surface depths. Most sampling occurred during daylight hours between 08:00–20:00 by towing paired bongo nets (0.6-meter diameter conical nets, 3.3 meters long) typically with 500-micrometer mesh. However, during 2006 and 2007, a 500-micrometer mesh net was frequently paired with a 333- or 1,000-micrometer mesh net, and in 2008 the 500-micrometer mesh net was paired with a 1,000-micrometer mesh net at times. In addition, in 2008 and 2009 a single ichthyoplankton net with 500- or 1,000-micrometer mesh was deployed in lieu of paired bongos. NIGHTTIME SAMPLING Benthic D-frame nets were used during the nighttime period. D-frame net sampling set-up for the St. Clair, St. Marys, and Detroit rivers is described in Roseman et al. (2011). The sampling nets were D-frame drift nets as described in Auer and Baker (2002), consisting of a stainless steel frame (76 centimeters across the base, 54 centimeters high) with a knotless 1600-micrometer mesh nylon bag 317.5 centimeters long and detachable cod-end. In most instances, flowmeters were positioned in the mouth of each net to estimate the volume of water sampled. D-frame nets were set for 2 or more hours, depending on specific field conditions and study objectives. Light traps were set in groups of 3 (typically) and fished from dusk to dawn in nearshore areas. Light traps were quatrafoil style with a glowing light stick in the center (Tucker et al. 2019). The contents of the quatrafoils were rinsed into a mesh bag (500-micrometer mesh) to collect any fish or invertebrates in the sample. Larval and juvenile fish were sorted and removed from the field samples and preserved in double-labeled vials with 95% ethanol. DEPTH-STRATIFIED SAMPLING Depth-stratified larval fish sampling was conducted using the paired bongo nets described above or smaller conical nets (0.3-meter diameter conical nets) typically with 750-micrometer mesh. Stratified bongo and conical nets were typically set for 6-12 hours. Specific sampling times are described within the sample data. Depth-stratified sampling used a set up similar to the D-frame sampling. Nets were secured at the appropriate depths on a single line to sample the different depths concurrently. Tucker et al. (2018) Hubbs et al. (2004) Roseman et al. (2011) Auer and Baker (2002) Tucker et al. (2019) 20060301 Robin L DeBruyne U.S. Geological Survey, MIDCONTINENT REGION Ecologist mailing address

1451 Green Rd

Ann Arbor MI 48105 US 734-994-3331 734-994-8780 rdebruyne@usgs.gov LABORATORY METHODS SAMPLE STORAGE/PRESERVATION All ethanol-preserved larval fish samples (typically 95% ethanol) from the field were housed in a refrigerated walk-in cooler to keep samples from degrading before larval fish were removed. Samples that contained large amount of debris, algae, or detritus had the ethanol decanted and replaced with fresh ethanol. Sample processing was completed by trained technicians. All trainee technicians were supervised and samples checked by experienced technicians for quality control. Any non-larval sized fish collected during larval sampling were removed from the sample, identified to species, and measured for total length (millimeter). Larval fish were picked from the samples and stored in double-labeled scintillation vials filled with ethanol. SAMPLE IDENTIFICATIONS AND FISH MEASUREMENTS Sampled larval fish were identified by trained technicians using a dissecting microscope and digital imaging software (Image-Pro Plus 7.0). Individual fish were identified to lowest taxonomic level as possible according to various Great Lakes larval fish keys (e.g., Lam and Roff 1977; Cooper 1978; Auer 1982; Fudge et al. 1986; Wallus et al. 1990; Kay et al. 1994; Simon and Wallus 2004; Wallus and Simon 2006, 2008). Larval fish total length was digitally measured and the larval stage classified (yolk sac, larval, or juvenile stage). When more than 30 fish of a single taxon were identified, typically only 30 fish of that taxon were randomly chosen for total length measurement. After identification and total length measurement, larval fish were placed in double-labeled scintillation vials to store for possible future processing and sample use. All identifications and total length measurements were entered into the electronic database and entries were reviewed for quality control and quality assurance. Auer (1982) Lam and Roff (1977) Cooper (1978) Fudge et al. (1986) Wallus et al. (1990) Kay et al. (1994) Simon and Wallus (2004) Wallus and Simon (2008) Wallus and Simon (2006) 200604 Robin L. DeBruyne U.S. Geological Survey Great Lakes Science Center Fish Biologist mailing and physical

1451 Green Rd

Ann Arbor Michigan 48105 United States 734-214-7228 rdebruyne@usgs.gov LocationDataTable.csv Comma-Separated Values (CSV) file of location information for larval collection sites. Producer Defined Site Larval sampling site name. Producer Defined Larval sampling site name. Site names can be an alpha, alpha-numeric, or numeric combination. SiteDescription Additional larval sampling site information. Producer Defined << empty cell >> No further site description recorded. Producer defined Additional site information, location, description, and/or alternative site names used during sampling to correspond with physical data sheets or samples. Information not referring to a geographic location refers to previous site names/information needed for physical sample and information tracking. Waterbody Waterbody that the sampling site is located in or near. Producer Defined Detroit River Sample sites located in the Detroit River or is part of the Detroit River sampling program that includes sites in Lake Erie proper near the Detroit River rivermouth. Abbreviation code DTR. Producer defined Lake Erie Sample sites located in the Lake Erie or part of the Lake Erie sampling program that includes sites in Lake Erie tributaries. Abbreviation code LKE. Producer defined Lake Ontario Sample sites located in the Lake Ontario or part of the Lake Ontario sampling program that includes sites in Lake Ontario tributaries. Abbrviation code LKO. Producer defined St. Clair River Sample sites located in the St. Clair River or part of the St. Clair River sampling program that includes sites in Lake St. Clair proper near the St. Clair River rivermouth. Abbreviation code SCR. Producer defined Belle River Sample sites located in the Belle River, Michigan, a tributary of the St. Clair River. Abbreviation code BLR. Producer defined Lake St. Clair Sample sites located in the Lake St. Clair. Abbreviation code LSC. Producer defined St. Marys River Sample sites located in the St. Marys River. Abbreviation code SMR. Producer defined Niagara River Samples sites located in the Niagara River. Abbreviation code NAR. Producer defined RiverSegment Geographic classification for sites located in selected rivers or bay based on their location within the river. Not all rivers have segment classifications. Producer Defined << empty cell >> Not applicable. Producer defined LakeDR Lake or rivermouth sites for the Detroit River sampling program. Producer defined UpperDR Sites located in the upper Detroit River area, upstream of the River Rouge confluence. Producer defined MiddleDR Sites located in the middle area of the Detroit River, between the River Rouge confluence and mid-way through Grosse Ile across the river. Producer defined LowerDR Sites located in the lower Detroit River area, downstream of mid-way through Grosse Ile across the river to the Huron River confluence. Producer defined DeltaSCR Sites located in the delta area of the St. Clair River. Producer defined MainChannelSCR Sites in the main channel of the St. Clair River, upstream of the delta area. Producer defined LakeSCR Sites in the rivermouth area of the St. Clair River, downstream of the delta segment. Producer defined Irondequoit Bay Sites located in the Irodequoit Bay of Lake Ontario. Producer defined Lower Niagara River Sites located in the lower portion of the Niagara River, downstream of Niagara Falls. Producer defined Upper Niagara River Sites located in the upper portion of the Niagara River, upstream of Niagara Falls. Producer defined Channel The river navigational channel where the site is located. The proper National Oceanic and Atmospheric Administration navigational channel name is used when possible. Otherwise the channel name listed is descriptive, but standard across applicable sites. Most sites with channels identified are in the St. Clair River, Lake St. Clair, and Detroit River. Producer Defined << empty cell >> No data or not applicable to the site. Producer defined Fleming Navigational Channel Main navigational channel in upper Detroit River, south of Belle Isle. Producer defined North of Belle Isle Channel located between Belle Isle and the mainland of Michigan. Producer defined Trenton Navigational Channel Navigational channel between Grosse Ile and the mainland of Michigan in the lower Detroit River. Producer defined South of Peche Island Channel between Peche Island and the mainland of Ontario in the upper Detroit River. Producer defined Fighting Island Navigational Channel Main navigational channel through the middle Detroit River section, west of Fighting Island. Producer defined West of Sugar Island Channel between Sugar Island and Grosse Ile in the lower Detroit River. Producer defined Livingstone Navigational Channel Livingstone Navigational Channel in the lower Detroit River. Producer defined Amherstburg Harbour Channel between levees of Livingstone Channel and Bois Blanc Island in the lower Detroit River. Producer defined Amherstburg Navigational Channel Amherstburg Navigational Channel in the lower Detroit River along the Ontario shoreline. Producer defined Middle Navigational Channel Middle Channel of the St. Clair River in the delta area, Michigan. Producer defined North Navigational Channel North Channel of the St. Clair River in the delta area, Michigan. Producer defined Main Navigational Channel The main stem of the St. Clair River, upstream of the delta region. Producer defined East of Fighting Island Channel between Fighting Island and mainland Ontario in the Detroit River. Producer defined South Navigational Channel South Channel of the St. Clair River in the delta area. Producer defined Peche Island Channel Navigational channel traversing Lake St. Clair from the St. Clair River delta to the Fleming Channel in the Detroit River. Producer defined Chenal About Round Channel split from North Channel in the St. Clair River near Lake St. Clair, Michigan. Producer defined Power Canal Channel Channel that begins upstream from St. Marys River Rapids and locks complex in the St. Marys River and re-joins the St. Marys River after the locks area. Producer defined Lake Erie Channel leading into Lake Erie from the Detroit River. Producer defined Country The country the site is located. Producer Defined USA United States of America Producer defined CAN Canada Producer defined Latitude Latitude (decimal degrees) of the sampling site in WGS84 projection. Producer Defined 41.40648 46.52752 decimal degrees Longitude Longitude (decimal degrees) of the sampling site in WGS84 projection. Producer Defined -84.576441 -76.08678 decimal degrees Comments Additional notes about sample site. Producer Defined << empty cell >> No comments recorded. Producer defined Any additional information or notes about the sample site. Information listed in comments may refer to aspects listed in the 'SiteDescription' column. LarvalDataTable.csv Comma-Separated Values (CSV) of field data, fish identifications, and associated data for the larval fish sampled. Full taxonomic information for families, genera, and species listed can be found in the TaxonomyTable.csv. Producer Defined IDnumber Unique identifier (primary key) for each sample event (replicate). Producer Defined 1 717518463 integer YSampleNo Unique sample identifier (Year-Sample-Number) composed of SpecificGear.Waterbody.Year.CntrlLogNo. Producer Defined Laboratory sample identifier for the replicate sample. In most instances, each sample replicate (row) has a unique YSampleNo. During much of the pre-2010 sampling, and sporadic instances after, the two replicates were placed in the same sample bottle; in these instances, two rows will have the same YSampleNo because they have the same laboratory control log number. The only difference will be that the second replicate will have '.Combined' after the standard YSampleNo information. The YSampleNo is the 'SpecificGear.WaterBody.Year.CntrlLogNo'. See the ‘SpecificGear’ column in this table and ‘WaterBody’ column in the 'LocationDataTable.csv' for the non-abbreviated gear and location names. SetDate Gear set date. Producer Defined Gear set date or sampling date, depending on gear type. Written in day-month-year format (dd-mmm-yy). WaterBody Body of water sampled. This may be the location of the site, or the nearby waterbody that is the main waterbody of the sampling program. Producer Defined Belle River Belle River, Michigan, a tributary of the St. Clair River. Producer defined Detroit River Detroit River, located between Lake St. Clair and Lake Erie. Producer defined Lake Erie Lake Erie. Producer defined St. Clair River St. Clair River, located between Lake Huron and Lake St. Clair. Producer defined Lake Ontario Lake Ontario. Producer defined Lake St. Clair Lake St. Clair, located between St. Clair River and Detroit River. Producer defined St. Marys River St. Marys River, located between Lake Superior and Lake Huron. Producer defined Niagara River Niagara River, located between Lake Erie and Lake Ontario. Producer defined CntrlLogNo Control log number assigned to the sample in the laboratory. Producer Defined Laboratory sample number. Control log numbers may repeat each year and may have letters associated with a specific gear or location control log (e.g., D=D-frame, C= stratified conical, SMR=St. Marys River, LKE=Lake Erie). Site Sample site name or number. Producer Defined Unique name (numeric, alpha-numeric, alpha) of the sample site. Additional site information can be found in the 'LocationDataTable.csv'. SpecificGear Specific sampling gear used. Producer Defined Dframe Bottom D-frame drift net. Typical size of the D-frame nets is 76 centimeters along the bottom and 54 centimeters high. Abbreviation code DFN. Producer defined Ichthyoplankton Single conical net used to sample. Abbreviation code IPN. Producer defined Neuston Rectangle sampling net, typically 1 meter by 2 meters in size, typically fished at the surface of the water. Abbreviation code NSN. Producer defined Bongo Paired conical nets fished simultaneously, held together with a metal frame. Abbreviation code PBN. Producer defined Stratified Conicals Smaller conical nets (typically 0.3 meters diameter) set and sampled at specific depths in the water column. Nets were typically fished on a single vertical line, fishing all depths simultaneously. Abbreviation code SCN. Producer defined Stratified Bongo Paired bongo nets sampled at specific depths in the water column. Nets were typically fished on a single vertical line, fishing all depths simultaneously. Abbreviation code SBN. Producer defined Light Trap Quatrafoil light trap with glow stick in the center fished at night. Abbreviation code LT. Producer defined Stratified Miller Miller sampling nets sampled at specific depths in the water column. Nets were typically fished on a single vertical line, fishing all depths simultaneously. Abbreviation code SMN. Producer defined GearType Category of gear type of the specific sampling gear. Producer Defined << empty cell >> Not applicable. Producer defined Conical Circular sampling net. Producer defined Polyhedron Rectangle-shaped net. Producer defined Paired Conical Paired circular sampling nets. Producer defined Quatrafoil Four-tubed fish sampler with center tube for a glow stick. Producer defined GearOrientation Gear orientation within the water column, indicating the depth sampled. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined Bottom Gear sampled near the bottom of the water column or directly set on the substrate. Producer defined Surface Gear sampled near the surface of the water column. Producer defined Middle Gear sampled in the middle of the water column. Producer defined Integrated Gear sampled at multiple depths in the water column for equal amounts of time per depth. Typically, integrated tows sample near the bottom, middle, and surface of the water column, but in some locations only the bottom and surface areas were sampled. The depth listed for the integrated samples is the deepest depth sampled. Producer defined GearRadius(m) Gear radius in meters (when applicable). This is only listed for circular nets. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0.0762 0.3 meter GearOpeningArea(m2) Gear opening area (square meters) for non-circular sampling nets. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0.3487 2.0 square meters GearMeshSize(um) Gear mesh size (micrometers) of the sampling nets or cod-end. If a gear had more than one mesh size, the largest mesh size is listed. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 333 1600 micrometers Rep Replicate number of a sample. Producer Defined Replicate number of sampling for that day of sampling. Replicates could be taken simultaneously (e.g., paired bongo net samples) or taken consecutively (e.g., ichthyoplankton net samples). MeterSerialNo Unique serial number for the flowmeter used during sampling. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined Flowmeters were placed in the center of the net opening during sampling to estimate the sample volume. Each flowmeter has a unique serial number. StartTime Sampling start time in 24-hour format (hh:mm). There are instances when there was no start time recorded with the end time and instances with no start or end times recorded. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 00:00 23:59 minutes EndTime Sampling end time in 24-hour format (hh:mm). There are instances when there was no end time recorded with the start time and instances with no start or end times recorded. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 00:00 23:59 minutes SampleTime(h:mm) Total sampling time (h:mm). Sample time will be blank if the start time or end time were not recorded. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0:00 23:59 minutes HoursSampled Total sampling time (hours). Hours sampled will be blank if the start time or end time were not recorded. Producer Defined << empty cell >> Not recorded. Producer defined 0.00 23.98 hours NetNo Sampling net number. Producer Defined << empty cell >>, NA <<empty cell>> = Net number not established or not recorded; NA = Not Applicable Producer defined Each D-frame net, stratified conical net, and light trap is given a number for record keeping. The paired bongo nets are not numbered, however Rep 1 and Rep 2 were the same nets used to sample a waterbody during a year. Secchi(m) Secchi depth (meters). Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0 25 meters WaterTemp(C) Water temperature (degrees Celsius). Producer Defined << empty cell >> Not applicable or not recorded. Producer defined -0.7 28.4 degrees Celsius WaterDepth(m) Water depth (meters) at sampling site. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0.49 63 meters TowDepth(m) Depth (meters) which the sample taken from the surface. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0.49 18.1 meters MeterStart Flow meter reading at the start of sampling. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0 999995 revolutions MeterFinish Flow meter reading at the conclusion of sampling. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 0 999999 revolutions Difference Number of revolutions during the sampling event. Producer Defined << empty cell >> Not applicable or not recorded. Producer defined 2 1000000 revolutions SampleDiffCorrection Correction needed for meter malfunction or combined samples. Null= no change, 0=ignored line for combined samples, value=corrected value to use for volume calculations. Producer Defined << empty cell >> Not applicable. Producer defined 0 67080 revolutions CorrectedDifference 'Difference' column to use in subsequent calculations. This column will be the same as the "Difference" column if no changes or corrections were needed. Producer Defined << empty cell >> Not applicable. Producer defined 2 1000000 revolutions Distance Distance sampled calculated using equation provided by General Oceanics flow meter as a step to calculate volume. The equation used was: Distance = ([CorrectedDifference]*26873)/999999. Producer Defined << empty cell >> Not applicable. Producer defined 0.05 26873.03 unitless SampleVolume(m3) Total volume of water for the given sample. Total volume of water sampled by the net(s), in cubic meters. In instances where the two replicate tows were combined into one sample jar (labeled as 'Both' in comments), the rep 1 will be the combined volumes from both nets and the rep 2 will be listed as '0'. All larval fish count information will be listed in the rep 1 row. Formulas used to calculate volume sampled are as follows: IIf([GearRadius(m)]>0,(3.14159*[Distance]*([GearRadius(m)]^2)),([Distance]*[GearOpeningArea(m2)])). Producer Defined << empty cell >> Not applicable. Producer defined 0.02 9370.62 cubic meters of water Comments Comments or sample information not properly characterized within the other columns. Producer Defined << empty cell >> None recorded. Producer defined This column contains comments, information, and further explanation associated with the sample. Any changes or manipulations to the sample or sample information is located here. If the comment "Both" is listed, that sample has the replicate net tows combined into one sample jar, making what was two replicates, one sample. The number of revolutions of the flow meters from both replicates were added together and put into replicate 1 row, and a "0" was placed in replicate 2 row. Any other information to properly use the sample data for analysis is listed. NoLarval Number of larvae from laboratory control log. If NoLarval is blank, this indicates the sample has not been processed at this time. This number should match the LarvalSum if the sample has been identified and final quality checks have been completed. If the sample has not been fully identified, this number (NoLarval) is considered an estimate of the number of fish in the sample. Producer Defined << empty cell >> Not processed. Producer defined 0 25303 integer NoNonLarval Number of non-larval fish in the sample. Producer Defined << empty cell >> None recorded. Producer defined 0 2076 integer NoEggs Number of fish eggs noted in sample. This is not an accurate or complete estimate of the number of eggs captured in a particular sample. This should be treated as anecdotal information only. Producer Defined << empty cell >> None recorded. Producer defined 0 865 integer LarvalSum Sum of identified larval fish. If LarvalSum is '0' and a non-zero number is in the NoLarval column, this indicates the sample has been picked, but not identified at this time. Producer Defined << empty cell >> Not applicable. Producer defined 0 24544 integer Petromyzontidae Number of individuals captured in a sampling instance that were identified to be in Family Petromyzontidae. Producer Defined 0 10 integer Ichthyomyzon Number of individuals captured in a sampling instance that were identified to be in Genus Ichthyomyzon. Producer Defined 0 7 integer SEL Number of individuals captured in a sampling instance that were identified to be sea lamprey (Petromyzon marinus). Producer Defined 0 5 integer SIL Number of individuals captured in a sampling instance that were identified to be silver lamprey (Ichthyomyzon unicuspis). Producer Defined 0 5 integer ABL Number of individuals captured in a sampling instance that were identified to be American brook lamprey (Lethenteron appendix). Producer Defined 0 1 integer LAS Number of individuals captured in a sampling instance that were identified to be lake sturgeon (Acipenser fulvescens). Producer Defined 0 229 integer Lepisosteidae Number of individuals captured in a sampling instance that were identified to be in Family Lepisosteidae. Producer Defined 0 2 integer BON Number of individuals captured in a sampling instance that were identified to be bowfin (Amia calva). Producer Defined 0 0 integer Clupeidae Number of individuals captured in a sampling instance that were identified to be in Family Clupeidae. Producer Defined 0 16 integer ALE Number of individuals captured in a sampling instance that were identified to be alewife (Alosa pseudoharengus). Producer Defined 0 2 integer GIS Number of individuals captured in a sampling instance that were identified to be gizzard shad (Dorosoma cepedianum). Producer Defined 0 22807 integer Catostomidae Number of individuals captured in a sampling instance that were identified to be in Family Catostomidae. Producer Defined 0 587 integer Ictiobus Number of individuals captured in a sampling instance that were identified to be in the Genus Ictiobus. Producer Defined 0 147 integer NHS Number of individuals captured in a sampling instance that were identified to be northern hogsucker (Hypentelium nigricans). Producer Defined 0 28 integer Moxostoma Number of individuals captured in a sampling instance that were identified to be in Genus Moxostoma. Producer Defined 0 31 integer SPS Number of individuals captured in a sampling instance that were identified to be spotted sucker (Minytrema melanops). Producer Defined 0 35 integer QUB Number of individuals captured in a sampling instance that were identified to be quillback (Carpiodes cyprinus). Producer Defined 0 25 integer WHS Number of individuals captured in a sampling instance that were identified to be definitely in the Genus Catostomus and most likely white sucker (Catostomus commersonii). Producer Defined 0 94 integer Leuciscidae Number of individuals captured in a sampling instance that were identified to be true minnows and shiners in Family Leuciscidae. Producer Defined 0 3517 integer CAP Number of individuals captured in a sampling instance that were identified to be common carp (Cyprinus carpio). Producer Defined 0 167 integer GOF Number of individuals captured in a sampling instance that were identified to be goldfish (Carassius auratus). Producer Defined 0 1 integer Ictaluridae Number of individuals captured in a sampling instance that were identified to be in Family Ictaluridae. Producer Defined 0 3 integer CHC Number of individuals captured in a sampling instance that were identified to be channel catfish (Ictalurus punctatus). Producer Defined 0 11 integer YEB Number of individuals captured in a sampling instance that were identified to be yellow bullhead (Ameiurus natalis). Producer Defined 0 1 integer NOM Number of individuals captured in a sampling instance that were identified to be northern madtom (Noturus stigmosus). Producer Defined 0 0 integer Salmoninae Number of individuals captured in a sampling instance that were identified to be in Sub-family Salmoninae. Producer Defined 0 7 integer ATS Number of individuals captured in a sampling instance that were identified to be Atlantic salmon (Salmo salar). Producer Defined 0 24 integer BKT Number of individuals captured in a sampling instance that were identified to be brook trout (Salvelinus fontinalis). Producer Defined 0 5 integer CHS Number of individuals captured in a sampling instance that were identified to be Chinook salmon (Oncorhynchus tshawytscha). Producer Defined 0 2 integer PKS Number of individuals captured in a sampling instance that were identified to be pink salmon (Oncorhynchus gorbusha). Producer Defined 0 5 integer RBT Number of individuals captured in a sampling instance that were identified to be rainbow trout (Oncorhynchus mykiss). Producer Defined 0 3 integer Coregoninae Number of individuals captured in a sampling instance that were identified to be in the Sub-family Coregoninae. Producer Defined 0 422 integer BLO Number of individuals captured in a sampling instance that were identified to be bloater (Coregonus hoyi). Producer Defined 0 2 integer LAH Number of individuals captured in a sampling instance that were identified to be in lake herring / cisco (Coregonus artedi). Producer Defined 0 4 integer LWF Number of individuals captured in a sampling instance that were identified to be lake whitefish (Coregonus clupeaformis). Producer Defined 0 79 integer Esocidae Number of individuals captured in a sampling instance that were identified to be in Family Esocidae. Producer Defined 0 2 integer GRP Number of individuals captured in a sampling instance that were identified to be grass pickerel (Esox americanus). Producer Defined 0 0 integer MUE Number of individuals captured in a sampling instance that were identified to be muskellunge (Esox masquinongy). Producer Defined 0 3 integer NOP Number of individuals captured in a sampling instance that were identified to be northern pike (Esox lucius). Producer Defined 0 1 integer CMM Number of individuals captured in a sampling instance that were identified to be central mudminnow (Umbra limi). Producer Defined 0 1 integer RAS Number of individuals captured in a sampling instance that were identified to be rainbow smelt (Osmerus mordax). Producer Defined 0 1696 integer TRP Number of individuals captured in a sampling instance that were identified to be trout-perch (Percopsis omiscomaycus). Producer Defined 0 68 integer BUT Number of individuals captured in a sampling instance that were identified to be burbot (Lota lota). Producer Defined 0 183 integer BSS Number of individuals captured in a sampling instance that were identified to be brook silverside (Labidesthes sicculus). Producer Defined 0 78 integer Morone Number of individuals captured in a sampling instance that were identified to be in Genus Morone (white bass [Morone chrysops] and white perch [Morone americana]). Producer Defined 0 4249 integer Percidae Number of individuals captured in a sampling instance that were identified to be in Family Percidae. Producer Defined 0 780 integer DAR Number of individuals captured in a sampling instance that were identified to be darters (Genera Percina, Ammocrypta, or Etheostoma). Producer Defined 0 249 integer LOP Number of individuals captured in a sampling instance that were identified to be logperch (Percina caprodes). Producer Defined 0 113 integer WAE Number of individuals captured in a sampling instance that were identified to be walleye (Sander vitreus). Producer Defined 0 300 integer YEP Number of individuals captured in a sampling instance that were identified to be yellow perch (Perca flavescens). Producer Defined 0 3407 integer Centrarchidae Number of individuals captured in a sampling instance that were identified to be in Family Centrarchidae. Producer Defined 0 118 integer Lepomis Number of individuals captured in a sampling instance that were identified to be in Genus Lepomis. Producer Defined 0 120 integer Pomoxis Number of individuals captured in a sampling instance that were identified to be in Genus Pomoxis. Producer Defined 0 13 integer LMB Number of individuals captured in a sampling instance that were identified to be in largemouth bass (Micropterus salmoides). Producer Defined 0 1 integer SMB Number of individuals captured in a sampling instance that were identified to be in smallmouth bass (Micropterus dolomieu). Producer Defined 0 1 integer ROB Number of individuals captured in a sampling instance that were identified to be rockbass (Ambloplites rupestris). Producer Defined 0 3 integer Cottidae Number of individuals captured in a sampling instance that were identified to be in Family Cottidae. Producer Defined 0 21 integer DWS Number of individuals captured in a sampling instance that were identified to be deepwater sculpin (Myoxocephalus thompsonii). Producer Defined 0 5 integer SLS Number of individuals captured in a sampling instance that were identified to be slimy sculpin (Cottus cognatus). Producer Defined 0 6 integer MOS Number of individuals captured in a sampling instance that were identified to be mottled sculpin (Cottus bairdii). Producer Defined 0 61 integer Gobiidae Number of individuals captured in a sampling instance that were identified to be in Family Gobiidae. Producer Defined 0 298 integer ROG Number of individuals captured in a sampling instance that were identified to be round goby (Neogobius melanostomus). Producer Defined 0 76 integer TNG Number of individuals captured in a sampling instance that were identified to be tubenose goby (Proterorhinus semilunaris). Producer Defined 0 29 integer Gasterosteidae Number of individuals captured in a sampling instance that were identified to be in Family Gasterosteidae. Producer Defined 0 14 integer NSS Number of individuals captured in a sampling instance that were identified to be ninespine stickleback (Pungitius pungitius). Producer Defined 0 9 integer TSS Number of individuals captured in a sampling instance that were identified to be threespine stickleback (Gasterosteus aculeatus). Producer Defined 0 8 integer BRS Number of individuals captured in a sampling instance that were identified to be brook stickleback (Culaea inconstans). Producer Defined 0 2 integer FWD Number of individuals captured in a sampling instance that were identified to be freshwater drum (Aplodinotus grunniens). Producer Defined 0 16074 integer UID Number of individuals captured in a sampling instance that were determined to be an unidentifiable fish, usually due to damage to the fish or inadequate preservation. Producer Defined 0 4192 integer TaxonomyTable.csv Comma-Separated Values (CSV) file with taxonomic classifications for species captured during larval fish sampling, including ITIS Taxonomic Serial Numbers. Producer Defined LetterCode Taxomonic information for species letter code used in the data files. Producer Defined Primary key letter code that is referenced by the individual count columns in the ‘LarvalDataTable.csv’ and 'IndFishLengthTable.csv' files. CommonName Common name of fish group or species. Producer Defined << empty cell >> Not applicable. Producer defined Common name of the fish group or fish species. This is not an exhaustive list of possible common names or local names. Family Taxonomic family. Producer Defined << empty cell >> Not applicable. Producer defined Taxonomic family classification. Subfamily Taxonomic subfamily classification. Producer Defined << empty cell >> Not applicable. Producer defined Taxonomic subfamily classification. Genus Taxonomic genus classification. Producer Defined << empty cell >> Not applicable. Producer defined Taxonomic genus classification. Species Taxonomic species classification. Producer Defined << empty cell >> Not applicable. Producer defined Taxonomic species classification. ITIS TSN Taxonomic serial number (TSN) obtained from the Integrated Taxonomic Information System (ITIS). Producer Defined << empty cell >> Not applicable because fish was unidentifiable. Producer defined Taxonomic serial number (TSN) obtained from the Integrated Taxonomic Information System (ITIS). GearEfficiency.csv Comma Separated Values (CSV) file containing sampling data evaluating sampling gear efficiency in the St. Marys River. Producer Defined YSampleNo Unique sample ID code (Year-Sample-Number) composed of SpecificGear.Waterbody.Year.CntrlLogNo. Producer Defined Laboratory sample identifier for the replicate sample. The YSampleNo is the 'SpecificGear.WaterBody.Year.CntrlLogNo'. See the ‘SpecificGear’ and ‘WaterBody’ column for the non-abbreviated gear and location names. SetDate Date the gear was set. Producer Defined Gear set date or sampling date, depending on gear type. Written in day-month-year format (dd-mmm-yy). Waterbody Body of water sampled. This may be the location of the site, or the nearby waterbody that is the main waterbody of the sampling program. Producer Defined St. Marys River St. Marys River, located between Lake Superior and Lake Huron. Abbreviation code SMR. Producer defined CntrlLogNo Control log number. Producer Defined Field and laboratory sample number. Refer to the 'Comments' column for further explanation. Site Larval sampling site name. Producer Defined Larval sampling site name. Site names can be an alpha, alpha-numeric, or numeric combination. Additional site information can be found in the 'LocationDataTable.csv'. SpecificGear Specific sampling gear used. Producer Defined Bongo Paired conical nets fished simultaneously, held together with a frame. Abbreviation code PBN. Producer defined Stratified Conicals Smaller conical nets (typically 0.3 meters diameter) set and sampled at specific depths in the water column. Nets were typically fished on a single vertical line, fishing all depths simultaneously. Abbreviation code SCN. Producer defined GearType Category of gear type of the specific sampling gear. Producer Defined Paired Conical Paired circular sampling nets. Producer defined Conical Single circular sampling net. Producer defined GearOrientation Gear orientation within the water column, indicating the water depth sampled. Producer Defined Surface Gear sampled near the surface of the water column. Producer defined Bottom Gear sampled near the bottom of the water column or directly set on the substrate. Producer defined GearRadius(m) Gear radius in meters. Producer Defined 0.15 0.3 meter GearMeshSize(um) Gear mesh size (micrometers) of the sampling nets or cod-end. If a gear had more than one mesh, the largest mesh size is listed. Producer Defined 500 750 micrometers Rep Replicate number of a sample period. Producer Defined Replicate number of sampling for that day of gear efficiency sampling. Replicates do not have uniform sampling duration, but were taken consecutively. MeterSerialNo Flowmeter serial number used during sampling. Producer Defined Flowmeters were placed in the center of the net opening during sampling to estimate the sample volume. StartTime Sampling start time (hh:mm, units = minutes). Producer Defined Sampling start time in 24-hr format (hh:mm). SecondsSampled Total sampling time in seconds. Producer Defined 147 2174 seconds SampleTime(mm:ss) Total sampling time in minutes:seconds format (mm:ss). Producer Defined 02:27 36:14 minutes HoursSampled Total sampling time in hours. Producer Defined 0.03 0.6 hours NetNo Sampling net number. Producer Defined Each sampling net is given a number for record keeping. WaterTemp(C) Water temperature (degrees Celsius). Producer Defined 5.64 5.89 degrees Celsius WaterDepth(m) Water depth (meters). Producer Defined 2 2 meters TowDepth(m) Depth (meters) which the sample taken from the surface. Producer Defined 1.0 1.0 meters Velocity(m/s) Water velocity recorded during sampling in meters per second using a Marsh McBirney velocity meter. Producer Defined 1.07 1.32 meters per second MeterStart Flowmeter reading at the start of sampling. Producer Defined 295440 849634 revolutions MeterFinish Flowmeter reading at the end of sampling. Producer Defined 306757 862615 revolutions Difference Number of revolutions during the sampling event. Producer Defined 5670 84147 revolutions Distance Equation provided by General Oceanics flow meter as a step to calculate volume. The equation used was: Distance = ([Difference]*26873)/999999. Producer Defined 152.37 2261.28 unitless FMSampleVolume(m3) Volume of water sampled (cubic meters) based on calculations from the flowmeter readings. Producer Defined 10.77 384.42 cubic meters VTSampleVolume(m3) Volume of water sampled (cubic meters) based on time sampled and velocity measurements taken during sampling. Producer Defined 12.67678689 442.0179431 cubic meters Comments Comments or information not properly characterized within the other columns. Producer Defined << empty cell >> None recorded. Producer defined This column contains comments, information, and further explanation associated with the sample. Any changes or manipulations to the sample or sample information is located here. IndFishLengthTable.csv Comma-Separated Values (CSV) file containing individual fish lengths from samples taken. Not all samples will have fish lengths recorded and not all fish from a sample will have lengths recorded. Producer Defined YSampleNo Unique sample identifier (Year-Sample-Number) composed of SpecificGear.Waterbody.Year.CntrlLogNo. Corresponds to YSampleNo in 'LarvalDataTable.csv' file. Producer Defined Laboratory sample identifier for the replicate sample. The YSampleNo is the 'SpecificGear.WaterBody.Year.CntrlLogNo'. See the ‘SpecificGear’ and ‘WaterBody’ columns in the 'LocationTable.csv' and 'LarvalDataTable.csv' for the non-abbreviated gear and location names. SetDate Gear set date. Producer Defined Gear set date or sampling date, depending on gear type. Written in day-month-year format (dd-mmm-yy). Year Calendar year that the sampling occurred. Producer Defined 2006 2021 year Waterbody Body of water sampled. This may be the location of the site, or the nearby waterbody that is the main waterbody of the sampling program. Producer Defined See 'LarvalDataTable.csv' and 'LocationDataTable.csv' for descriptions of waterbodies sampled. ContrlLogNo Control log number assigned to the sample in the laboratory. Producer Defined Laboratory sample number. Control log numbers may repeat each year and may have letters associated with a specific gear or location control log (e.g., D=D-frame, C= stratified conical, SMR=St. Marys River, LKE=Lake Erie). Count This is the count of larval fish represented by this row of data. Will typically equal '1' except where the row is representing multiple larval fish of the same identification and stage that were not measured. Producer Defined << empty cell >> Not applicable. Producer defined 1 16044 integer FishNo Individual fish's number within a sample. FishNo will restart at '1' for each sample. Producer Defined << empty cell >> Not applicable. Producer defined 0 4424 integer LetterCode Abbreviation corresponding to the lowest level taxonomic identification of the individual fish. Producer Defined << empty cell >> Not applicable. Producer defined Lowest taxonomic identification for an individual fish. Refer to 'TaxonomyTable.csv' for letter code values and taxonomic information. Total of 'Count' for each species identification will match with the total counts recorded for that species in the 'LarvalDataTable.csv'. Length Total length (millimeters) of larval fish for fish that were intact for accurate total length measurement. Producer Defined << empty cell >>, NA <<empty cell>> = Not applicable or not recorded; NA = not applicable. Producer defined 1.47 56 millimeters Lifestage Lifestage of the larval fish. Lifestage characterizations were done following resources identified in 'Process Steps'. Producer Defined << empty cell >> Not applicable, not recorded, or not able to be determined. Producer defined Yolksac Individual fish has yolksac present. Also considered the free-embryo stage. Producer defined Larvae Individual fish does not have any yolksac present, but does not have fin development such to classify as a juvenile. Producer defined Juvenile Individual fish does not have a yolksac present, is physically developed to be considered a juvenile according to sources used, but is not sexually mature. Producer defined Adult Individual fish is considered fully formed and considered sexually mature. Producer defined Egg Individual fish is in the embryo stage with chorion surrounding its body. Producer defined Comments Comments or information not properly characterized within the other columns. Producer Defined << empty cell >> None recorded. Producer defined This column contains comments, information, and further explanation associated with the sample. Any changes or manipulations to the sample or sample information is located here. These data include larval fish sample collections with the associated field and sample collection information and sample species composition. Further details and locations for the 'SiteName' column in the larval data table can be found in the locations table. Further taxonomic details for the species captured and listed in the larval data table can be found in the taxonomy table. Roseman, EF, RL DeBruyne, and SA Ireland. 2020. Larval fish abundance, identification, and auxiliary data from the Great Lakes and their connecting channels. USGS Data Release. U.S. Geological Survey GS ScienceBase mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9DWPIH0 None 20250401 Great Lakes Science Center mailing address

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Ann Arbor MI 48105 US 734-994-3331 GS_ASK_GLSC@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999