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Landings, abundance series, and biological data for a potential range-wide American eel stock assessment

PURPOSE:

To provide a permanent repository of key data series necessary to build a range-wide American eel stock assessment.

DESCRIPTION:

This collection presents data associated with the following report:

Cairns, D.K. 2020. Landings, abundance indicators, and biological data for a potential range-wide American eel stock assessment. Canadian Data Report of Fisheries and Aquatic Science. No. 1311: v + 180 pp.

Much of the data collection is from the Atlantic Provinces of Canada, particularly the Southern Gulf of St. Lawrence. The collection also includes data from elsewhere in the American eel's range in Canada, and also the United States and the Caribbean Basin.

Files in the collection are as follows.

Cairns2020_AnnexA_ReportTables.xlsx: This Excel file (file size 756 kb) contains all 37 tables in Cairns (2020) exactly as they appear in the report.

Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx: This Excel file (file size 3.1 mb) contains 20,047 records of American eel lengths and other biological data from the Canadian Atlantic Provinces, 1983-2017. Records include weights of 8,915 eels and ages of 2,212 eels. Records of 3,224 electrofishing sessions in the Miramichi River, New Brunswick, 1952-2019, and records of 2,590 electrofishing sessions in the Restigouche River, New Brunswick, 1972-2019 are included.

Cairns2020_AnnexC_EelLengthsAgesDataDefinitions.csv: This .csv file (file size 4 kb) gives data definitions in English and French for the table of eel lengths and other biological data that is contained in Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx and in Cairns2020_AnnexD_EelLengthsAges.csv.

Cairns2020_AnnexD_EelLengthsAges.csv: This file (file size 2.0 mb) presents in .csv format the table of eel lengths and other biological data that is also presented in Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx.

Cairns2020_AnnexE_EelEFishingDataDefinitions.csv: This .csv file (file size 2 kb) gives data definitions in English and French for the table of eel electrofishing data that is contained in Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx and in Cairns2020_AnnexD_EelLengthsAges.csv.

Cairns2020_AnnexF_EelEFishing.csv: This file (file size 314 kb) presents in .csv format the table of eel electrofishing data that is also presented in Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx.

Cairns2020_AnnexG_OtolithImageMetadata.csv: This .csv file (file size 2 kb) provides metadata for the collection of eel otolith images.

Files with names starting with EelOtos . . . . : These .tif, .jpg, and .bmp image files are in zipped format with a summed size of 5.3 gb. The files give magnified photos of 1,838 eel otoliths that have been prepared for age reading. Samples are from the Atlantic Provinces of Canada. Individual otolith codes in Cairns2020_AnnexB_EelLengthsAgesEfishingRecords.xlsx and in Cairns2020_AnnexC_EelLengthsAgesDataDefinitions.csv match the codes embedded in otolith image filenames.

PARAMETERS COLLECTED:

American eel landings, number caught, and effort of commercial and research fishing gear. American eel lengths, ages, sex and other biological data and sampling locations.

NOTES ON QUALITY CONTROL:

All keypunched records of landings, densities, and other data were verified against original sources. Landings and abundance indices were reviewed in a Department of Fisheries and Oceans scientific workshop and corrected as necessary. Length and age data were examined by length-weight and length age plots and implausible records were discarded.

PHYSICAL SAMPLE DETAILS:

No physical samples

SAMPLING METHODS:

Landings are from government fisheries agencies.

Abundance indices are from commercial fyke, spear, and trap catch per unit effort, and from research ladder counts and electrofishing records.

Mean elver lengths are compiled from published literature

Sex ratios are compiled from published literature

Locations of biological and genetic sampling are compiled from published literature

American eel lengths are total length of live specimens. Ages are from otolith annulus readings

Electrofishing records are from backpack electrofishing surveys in wadeable waters

USE LIMITATION:

To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Simple

Date ( RI_366 )
1870-01-01
Date ( RI_367 )
2020-08-05
Date ( RI_368 )
2025-02-07
RI_409
  Government of Canada; Fisheries and Oceans Canada - Scott Roloson ( Aquatic Biologist III )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
506-378-4946
Purpose
To provide a permanent repository of key data series necessary to build a range-wide American eel stock assessment.
Status
completed; complété RI_593
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
DFO Areas Zones du MPO ( RI_525 )
  • North Atlantic Ocean
  • Gulf of Maine and Bay of Fundy
  • Gulf of St. Lawrence
  • Newfoundland Shelf and Grand Banks
  • Northwest Atlantic
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Fish
  • Fisheries resources
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Use limitation
To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.
Use limitation
No limitations.
Classification
unclassified; nonClassifié RI_484
Spatial representation type
textTable; texteTable RI_637
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Biota
  • Inland waters
  • Oceans
Begin date
1870-01-01
End date
2019-12-31
Description
Waters bordering and draining into the Atlantic Ocean between Labrador and Jamaica
N
S
E
W
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Reference system identifier
http://www.epsg-registry.org / EPSG:3978
Distribution format
  • CSV ( n/a )

  • JPG ( n/a )

  • XLSX ( n/a )

RI_414
  Government of Canada; Fisheries and Oceans Canada - David Cairns ( Research Scientist, Charlottetown, PEI )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
902-626-5032
OnLine resource
Cairns2020_AnnexD_EelLengthsAges ( HTTPS )

Dataset;CSV;eng,fra

OnLine resource
Cairns2020_AnnexF_EelEFishing ( HTTPS )

Dataset;CSV;eng,fra

OnLine resource
Cairns2020_AnnexC_EelLengthsAgesDataDefinitions ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Cairns2020_AnnexE_EelEFishingDataDefinitions ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Cairns2020_AnnexG_OtolithImageMetadata ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Supplementary citation list ( HTTPS )

Supporting Document;PDF;eng,fra

OnLine resource
Cairns2020_AnnexA_ReportTables ( HTTPS )

Dataset;XLSX;eng,fra

OnLine resource
Cairns2020_AnnexB_EelLengthsAgesEFishingRecords ( HTTPS )

Dataset;XLSX;eng,fra

OnLine resource
Images - part 1 ( HTTPS )

Dataset;ZIP;eng,fra

OnLine resource
Images - part 2 ( HTTPS )

Dataset;ZIP;eng,fra

OnLine resource
Images - part 3 ( HTTPS )

Dataset;ZIP;eng,fra

OnLine resource
Images - part 4 ( HTTPS )

Dataset;ZIP;eng,fra

OnLine resource
American eel measurements from selected sites (Annex D) ( ESRI REST: Map Service )

Web Service;ESRI REST;eng

OnLine resource
American eel measurements from selected sites (Annex D) ( ESRI REST: Map Service )

Web Service;ESRI REST;fra

File identifier
7ce80b52-b555-11ea-bdf6-1860247f53e3 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-11T01:21:58.89Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Fisheries and Oceans Canada - David Cairns ( Research Scientist, Charlottetown, PEI )
343 Université Ave , Moncton , New Brunswick , E1C 5K4 , Canada
902-626-5032
 
 

Overviews

overview
An American eel

Spatial extent

N
S
E
W
thumbnail


Keywords


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Associated resources

Not available


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