Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009
Age, sex, and length (ASL) data provide population dynamics information that can indicate how population trends occur and may be changing. These data can help researchers estimate population growth rates, age-class distribution, and population demographics. Knowing population demographics, growth ra...
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2018
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dataone:doi:10.5063/CJ8BW6 2024-06-03T18:47:06+00:00 Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 Alaska Department of Fish and Game, Division of Commercial Fisheries, Central Region Neala Kendall Wood River, Bristol Bay, Alaska Igushik River, Bristol Bay, Alaska Igushik River, Bristol Bay, Alaska Snake River, Bristol Bay, Alaska Nushagak River, Bristol Bay, Alaska Togiak River, Bristol Bay, Alaska ENVELOPE(-158.5822,-158.5822,59.2715,59.2715) BEGINDATE: 1957-01-01T00:00:00Z ENDDATE: 2009-01-01T00:00:00Z 2018-02-16T00:00:00Z https://doi.org/10.5063/CJ8BW6 unknown Knowledge Network for Biocomplexity age, sex, length Oncorhynchus Oncorhynchus tshawytscha Oncorhynchus Oncorhynchus keta Oncorhynchus Oncorhynchus kisutch Oncorhynchus Oncorhynchus gorbuscha Oncorhynchus Oncorhynchus nerka Oncorhynchus tshawytscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus gorbuscha Oncorhynchus nerka Dataset 2018 dataone:urn:node:KNB https://doi.org/10.5063/CJ8BW6 2024-06-03T18:17:34Z Age, sex, and length (ASL) data provide population dynamics information that can indicate how population trends occur and may be changing. These data can help researchers estimate population growth rates, age-class distribution, and population demographics. Knowing population demographics, growth rates and trends is particularly valuable to fisheries managers who must perform population assessments to inform management decisions. These data are therefore important in valuable fisheries like the salmon fisheries of Alaska. This dataset includes age, sex, and length data compiled from annual sampling of commercial and subsistence salmon harvests and research projects in Bristol Bay, Alaska from 1957-2009. It includes data on five salmon species: chinook, chum, coho, pink, and sockeye. Age estimates were made by examining scales or bony structures (e.g. otoliths - ear bones). Scales were removed from the side of the fish; usually the left side above the lateral line. Scales or bony structures were then mounted on gummed cards and pressed on acetate to make an impression. The number of freshwater and saltwater annuli (i.e. rings) was counted to estimate freshwater and saltwater ages in years. Fish sex was determined by either examining external morphology (eg. head and belly shape) or internal sex organ. Length was measured in millimeters, generally from mid-eye to the fork of the tail. This data package includes a .csv of formatted ASL data (ASL_formatted_BristolBay.csv), an R script detailing the data processing steps (ASL_Formatting_BristolBay.R), the original .csv file (BB_ASL.csv), and the Microsoft Access Database file from which the original .csv was extracted (ADFG_Bistol Bay ASL and count.mdb). Dataset Oncorhynchus gorbuscha Alaska Knowledge Network for Biocomplexity (via DataONE) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Wood River ENVELOPE(-63.157,-63.157,82.502,82.502) ENVELOPE(-158.5822,-158.5822,59.2715,59.2715) |
institution |
Open Polar |
collection |
Knowledge Network for Biocomplexity (via DataONE) |
op_collection_id |
dataone:urn:node:KNB |
language |
unknown |
topic |
age, sex, length Oncorhynchus Oncorhynchus tshawytscha Oncorhynchus Oncorhynchus keta Oncorhynchus Oncorhynchus kisutch Oncorhynchus Oncorhynchus gorbuscha Oncorhynchus Oncorhynchus nerka Oncorhynchus tshawytscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus gorbuscha Oncorhynchus nerka |
spellingShingle |
age, sex, length Oncorhynchus Oncorhynchus tshawytscha Oncorhynchus Oncorhynchus keta Oncorhynchus Oncorhynchus kisutch Oncorhynchus Oncorhynchus gorbuscha Oncorhynchus Oncorhynchus nerka Oncorhynchus tshawytscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus gorbuscha Oncorhynchus nerka Alaska Department of Fish and Game, Division of Commercial Fisheries, Central Region Neala Kendall Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
topic_facet |
age, sex, length Oncorhynchus Oncorhynchus tshawytscha Oncorhynchus Oncorhynchus keta Oncorhynchus Oncorhynchus kisutch Oncorhynchus Oncorhynchus gorbuscha Oncorhynchus Oncorhynchus nerka Oncorhynchus tshawytscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus gorbuscha Oncorhynchus nerka |
description |
Age, sex, and length (ASL) data provide population dynamics information that can indicate how population trends occur and may be changing. These data can help researchers estimate population growth rates, age-class distribution, and population demographics. Knowing population demographics, growth rates and trends is particularly valuable to fisheries managers who must perform population assessments to inform management decisions. These data are therefore important in valuable fisheries like the salmon fisheries of Alaska. This dataset includes age, sex, and length data compiled from annual sampling of commercial and subsistence salmon harvests and research projects in Bristol Bay, Alaska from 1957-2009. It includes data on five salmon species: chinook, chum, coho, pink, and sockeye. Age estimates were made by examining scales or bony structures (e.g. otoliths - ear bones). Scales were removed from the side of the fish; usually the left side above the lateral line. Scales or bony structures were then mounted on gummed cards and pressed on acetate to make an impression. The number of freshwater and saltwater annuli (i.e. rings) was counted to estimate freshwater and saltwater ages in years. Fish sex was determined by either examining external morphology (eg. head and belly shape) or internal sex organ. Length was measured in millimeters, generally from mid-eye to the fork of the tail. This data package includes a .csv of formatted ASL data (ASL_formatted_BristolBay.csv), an R script detailing the data processing steps (ASL_Formatting_BristolBay.R), the original .csv file (BB_ASL.csv), and the Microsoft Access Database file from which the original .csv was extracted (ADFG_Bistol Bay ASL and count.mdb). |
format |
Dataset |
author |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Central Region Neala Kendall |
author_facet |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Central Region Neala Kendall |
author_sort |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Central Region |
title |
Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
title_short |
Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
title_full |
Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
title_fullStr |
Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
title_full_unstemmed |
Salmon age, sex, and length data from Bristol Bay, Alaska, 1957-2009 |
title_sort |
salmon age, sex, and length data from bristol bay, alaska, 1957-2009 |
publisher |
Knowledge Network for Biocomplexity |
publishDate |
2018 |
url |
https://doi.org/10.5063/CJ8BW6 |
op_coverage |
Wood River, Bristol Bay, Alaska Igushik River, Bristol Bay, Alaska Igushik River, Bristol Bay, Alaska Snake River, Bristol Bay, Alaska Nushagak River, Bristol Bay, Alaska Togiak River, Bristol Bay, Alaska ENVELOPE(-158.5822,-158.5822,59.2715,59.2715) BEGINDATE: 1957-01-01T00:00:00Z ENDDATE: 2009-01-01T00:00:00Z |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-130.143,-130.143,54.160,54.160) ENVELOPE(-63.157,-63.157,82.502,82.502) ENVELOPE(-158.5822,-158.5822,59.2715,59.2715) |
geographic |
Keta Sockeye Wood River |
geographic_facet |
Keta Sockeye Wood River |
genre |
Oncorhynchus gorbuscha Alaska |
genre_facet |
Oncorhynchus gorbuscha Alaska |
op_doi |
https://doi.org/10.5063/CJ8BW6 |
_version_ |
1800876066496053248 |