Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015
The salmon life cycle begins in freshwater streams when adult salmon spawn, leaving fertilized eggs which hatch in the stream. Juvenile salmon migrate downstream to the ocean, where they spend several years until they reach reproductive age. Upon reaching sexual maturity, they return to their natal...
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dataone:urn:uuid:cf185eae-4d4c-418e-b040-4f5fc4d0c67f 2024-06-03T18:46:34+00:00 Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kuskokwim Region Arctic-Yukon-Kuskokwim Region in Alaska and Canada ENVELOPE(-169.875,-145.375,72.0,57.5) BEGINDATE: 1965-06-15T00:00:00Z ENDDATE: 2016-10-25T00:00:00Z 2016-12-09T23:47:13.7Z https://search.dataone.org/view/urn:uuid:cf185eae-4d4c-418e-b040-4f5fc4d0c67f unknown Knowledge Network for Biocomplexity Salmon Chinook Chum Coho Pink Sockeye Dolly Varden Arctic Char Alaska Canada Arctic Yukon Kuskokwim escapement Oncorhynchus gorbuscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus nerka Oncorhynchus tshawytscha Salvelinus alpinus Salvelinus malma gorbuscha keta kisutch nerka tshawytscha alpinus malma Dataset dataone:urn:node:KNB 2024-06-03T18:09:11Z The salmon life cycle begins in freshwater streams when adult salmon spawn, leaving fertilized eggs which hatch in the stream. Juvenile salmon migrate downstream to the ocean, where they spend several years until they reach reproductive age. Upon reaching sexual maturity, they return to their natal streams to spawn. The number of mature salmon migrating from the marine environment to freshwater streams is defined as escapement. Escapement data are the enumeration of these migrating fish as they pass upstream, and are a widely used index of spawning salmon abundance. These data are important for fisheries management, since most salmon harvest occurs in freshwater rivers during this migration. Escapement data are collected in a variety of ways. Stationary projects utilize observers stationed along freshwater corridors who count salmon as they pass upriver through weirs or past elevated towers. Sonar equipment placed in the river can also give a stationary escapement count. These counts usually represent a sample, and are expanded to represent a 24h period. Escapement data can also be collected using aerial surveys, where observers in an aircraft provide an index to estimate escapement. In general, escapement counts do not represent total abundance, but instead an index of abundance. Surveys are usually timed to coincide with peak spawning activity, generally in the summer, but in the case of Coho salmon in the fall as well. These data are the result of a multi-year effort by the Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kusokwim (AYK) Region to create a salmon database management system that centralizes AYK salmon data in a standard format, making the data more accessible to management agencies and the general public. The escapement data portion of this database includes data from more than 70 projects conducted by the Alaska Department of Fish and Game, federal agencies, non-governmental organizations, and the Canadian Department of Fisheries and Oceans. Data span the time period of 1965 to present, and were collected on 58 unique rivers in four management areas. These areas are Kotzebue, Kuskokwim, Norton Sound-Port Clarence, Yukon and Yukon-Canada. The five Alaskan salmon species (Chinook, Chum, Coho, Pink, Sockeye) are all represented in this dataset, in addition to two salmonids (Dolly Varden, Arctic Char). Dataset Arctic Kuskokwim Oncorhynchus gorbuscha Salvelinus alpinus Alaska Yukon Knowledge Network for Biocomplexity (via DataONE) Arctic Yukon Canada Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Varden ENVELOPE(7.656,7.656,62.534,62.534) Norton Sound ENVELOPE(69.507,69.507,-49.202,-49.202) ENVELOPE(-169.875,-145.375,72.0,57.5) |
institution |
Open Polar |
collection |
Knowledge Network for Biocomplexity (via DataONE) |
op_collection_id |
dataone:urn:node:KNB |
language |
unknown |
topic |
Salmon Chinook Chum Coho Pink Sockeye Dolly Varden Arctic Char Alaska Canada Arctic Yukon Kuskokwim escapement Oncorhynchus gorbuscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus nerka Oncorhynchus tshawytscha Salvelinus alpinus Salvelinus malma gorbuscha keta kisutch nerka tshawytscha alpinus malma |
spellingShingle |
Salmon Chinook Chum Coho Pink Sockeye Dolly Varden Arctic Char Alaska Canada Arctic Yukon Kuskokwim escapement Oncorhynchus gorbuscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus nerka Oncorhynchus tshawytscha Salvelinus alpinus Salvelinus malma gorbuscha keta kisutch nerka tshawytscha alpinus malma Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kuskokwim Region Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
topic_facet |
Salmon Chinook Chum Coho Pink Sockeye Dolly Varden Arctic Char Alaska Canada Arctic Yukon Kuskokwim escapement Oncorhynchus gorbuscha Oncorhynchus keta Oncorhynchus kisutch Oncorhynchus nerka Oncorhynchus tshawytscha Salvelinus alpinus Salvelinus malma gorbuscha keta kisutch nerka tshawytscha alpinus malma |
description |
The salmon life cycle begins in freshwater streams when adult salmon spawn, leaving fertilized eggs which hatch in the stream. Juvenile salmon migrate downstream to the ocean, where they spend several years until they reach reproductive age. Upon reaching sexual maturity, they return to their natal streams to spawn. The number of mature salmon migrating from the marine environment to freshwater streams is defined as escapement. Escapement data are the enumeration of these migrating fish as they pass upstream, and are a widely used index of spawning salmon abundance. These data are important for fisheries management, since most salmon harvest occurs in freshwater rivers during this migration. Escapement data are collected in a variety of ways. Stationary projects utilize observers stationed along freshwater corridors who count salmon as they pass upriver through weirs or past elevated towers. Sonar equipment placed in the river can also give a stationary escapement count. These counts usually represent a sample, and are expanded to represent a 24h period. Escapement data can also be collected using aerial surveys, where observers in an aircraft provide an index to estimate escapement. In general, escapement counts do not represent total abundance, but instead an index of abundance. Surveys are usually timed to coincide with peak spawning activity, generally in the summer, but in the case of Coho salmon in the fall as well. These data are the result of a multi-year effort by the Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kusokwim (AYK) Region to create a salmon database management system that centralizes AYK salmon data in a standard format, making the data more accessible to management agencies and the general public. The escapement data portion of this database includes data from more than 70 projects conducted by the Alaska Department of Fish and Game, federal agencies, non-governmental organizations, and the Canadian Department of Fisheries and Oceans. Data span the time period of 1965 to present, and were collected on 58 unique rivers in four management areas. These areas are Kotzebue, Kuskokwim, Norton Sound-Port Clarence, Yukon and Yukon-Canada. The five Alaskan salmon species (Chinook, Chum, Coho, Pink, Sockeye) are all represented in this dataset, in addition to two salmonids (Dolly Varden, Arctic Char). |
format |
Dataset |
author |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kuskokwim Region |
author_facet |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kuskokwim Region |
author_sort |
Alaska Department of Fish and Game, Division of Commercial Fisheries, Arctic-Yukon-Kuskokwim Region |
title |
Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
title_short |
Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
title_full |
Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
title_fullStr |
Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
title_full_unstemmed |
Salmon escapement data from Arcic-Yukon-Kusokwim Region, 1965-2015 |
title_sort |
salmon escapement data from arcic-yukon-kusokwim region, 1965-2015 |
publisher |
Knowledge Network for Biocomplexity |
publishDate |
|
url |
https://search.dataone.org/view/urn:uuid:cf185eae-4d4c-418e-b040-4f5fc4d0c67f |
op_coverage |
Arctic-Yukon-Kuskokwim Region in Alaska and Canada ENVELOPE(-169.875,-145.375,72.0,57.5) BEGINDATE: 1965-06-15T00:00:00Z ENDDATE: 2016-10-25T00:00:00Z |
long_lat |
ENVELOPE(-130.143,-130.143,54.160,54.160) ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(7.656,7.656,62.534,62.534) ENVELOPE(69.507,69.507,-49.202,-49.202) ENVELOPE(-169.875,-145.375,72.0,57.5) |
geographic |
Arctic Yukon Canada Sockeye Keta Varden Norton Sound |
geographic_facet |
Arctic Yukon Canada Sockeye Keta Varden Norton Sound |
genre |
Arctic Kuskokwim Oncorhynchus gorbuscha Salvelinus alpinus Alaska Yukon |
genre_facet |
Arctic Kuskokwim Oncorhynchus gorbuscha Salvelinus alpinus Alaska Yukon |
_version_ |
1800867905821212672 |