Daily salmon escapement counts, Central Region, Alaska
As salmon migrate from the marine environment to freshwater streams to spawn, a certain number are allowed to pass through, or '/escape/' the salmon fishery (frequently located near the mouth of the freshwater stream) as a management strategy to preserve the species. Escapement data are th...
Main Author: | |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Knowledge Network for Biocomplexity
2017
|
Subjects: | |
Online Access: | https://doi.org/10.5063/0G3HK7 |
id |
dataone:doi:10.5063/0G3HK7 |
---|---|
record_format |
openpolar |
spelling |
dataone:doi:10.5063/0G3HK7 2024-06-03T18:47:06+00:00 Daily salmon escapement counts, Central Region, Alaska Alaska Department of Fish and Game, Division of Commercial Fisheries Nushagak, Bristol Bay, Alaska; Coghill Weir, Prince William Sound, Alaska; Miles Lake North Bank, Copper River, Alaska; Miles Lake South Bank, Copper River, Alaska; Kasilof, Cook Inlet, Alaska; Crescent, Cook Inlet, Alaska; Kenai, Cook Inlet, Alaska; Eshamy Weir, Prince William Sound, Alaska; Egegik Tower, Bristol Bay, Alaska; Naknek Tower, Bristol Bay, Alaska; Wood Tower, Bristol Bay, Alaska; Kvichak Tower, Bristol Bay, Alaska; Igushik Tower, Bristol Bay, Alaska; Ugashik Tower, Bristol Bay, Alaska; Togiak Tower, Bristol Bay, Alaska; Larson Lake Weir, Cook Inlet, Alaska; Chelatna Lake Weir, Cook Inlet, Alaska; Judd Lake Weir, Cook Inlet, Alaska ENVELOPE(-160.0,-140.0,60.0,51.5) BEGINDATE: 2011-01-01T00:00:00Z ENDDATE: 2017-01-01T00:00:00Z 2017-10-20T00:00:00Z https://doi.org/10.5063/0G3HK7 unknown Knowledge Network for Biocomplexity escapement biophysical 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 2017 dataone:urn:node:KNB https://doi.org/10.5063/0G3HK7 2024-06-03T18:17:34Z As salmon migrate from the marine environment to freshwater streams to spawn, a certain number are allowed to pass through, or '/escape/' the salmon fishery (frequently located near the mouth of the freshwater stream) as a management strategy to preserve the species. Escapement data are the enumeration of these migrating fish as they pass upstream, and represent an index of the total abundance of spawning salmon in that particular stream. 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. Some data about non-salmon species are also included. This dataset contains salmon escapement data from the Central Region (Region II) which includes Bristol Bay, Prince William Sound, and Cook Inlet. Dataset Oncorhynchus gorbuscha Alaska Knowledge Network for Biocomplexity (via DataONE) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Weir ENVELOPE(177.167,177.167,-84.983,-84.983) Judd ENVELOPE(170.433,170.433,-85.067,-85.067) Judd Lake ENVELOPE(-116.251,-116.251,63.384,63.384) Larson Lake ENVELOPE(-106.736,-106.736,58.213,58.213) ENVELOPE(-160.0,-140.0,60.0,51.5) |
institution |
Open Polar |
collection |
Knowledge Network for Biocomplexity (via DataONE) |
op_collection_id |
dataone:urn:node:KNB |
language |
unknown |
topic |
escapement biophysical 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 |
escapement biophysical 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 Daily salmon escapement counts, Central Region, Alaska |
topic_facet |
escapement biophysical 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 |
As salmon migrate from the marine environment to freshwater streams to spawn, a certain number are allowed to pass through, or '/escape/' the salmon fishery (frequently located near the mouth of the freshwater stream) as a management strategy to preserve the species. Escapement data are the enumeration of these migrating fish as they pass upstream, and represent an index of the total abundance of spawning salmon in that particular stream. 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. Some data about non-salmon species are also included. This dataset contains salmon escapement data from the Central Region (Region II) which includes Bristol Bay, Prince William Sound, and Cook Inlet. |
format |
Dataset |
author |
Alaska Department of Fish and Game, Division of Commercial Fisheries |
author_facet |
Alaska Department of Fish and Game, Division of Commercial Fisheries |
author_sort |
Alaska Department of Fish and Game, Division of Commercial Fisheries |
title |
Daily salmon escapement counts, Central Region, Alaska |
title_short |
Daily salmon escapement counts, Central Region, Alaska |
title_full |
Daily salmon escapement counts, Central Region, Alaska |
title_fullStr |
Daily salmon escapement counts, Central Region, Alaska |
title_full_unstemmed |
Daily salmon escapement counts, Central Region, Alaska |
title_sort |
daily salmon escapement counts, central region, alaska |
publisher |
Knowledge Network for Biocomplexity |
publishDate |
2017 |
url |
https://doi.org/10.5063/0G3HK7 |
op_coverage |
Nushagak, Bristol Bay, Alaska; Coghill Weir, Prince William Sound, Alaska; Miles Lake North Bank, Copper River, Alaska; Miles Lake South Bank, Copper River, Alaska; Kasilof, Cook Inlet, Alaska; Crescent, Cook Inlet, Alaska; Kenai, Cook Inlet, Alaska; Eshamy Weir, Prince William Sound, Alaska; Egegik Tower, Bristol Bay, Alaska; Naknek Tower, Bristol Bay, Alaska; Wood Tower, Bristol Bay, Alaska; Kvichak Tower, Bristol Bay, Alaska; Igushik Tower, Bristol Bay, Alaska; Ugashik Tower, Bristol Bay, Alaska; Togiak Tower, Bristol Bay, Alaska; Larson Lake Weir, Cook Inlet, Alaska; Chelatna Lake Weir, Cook Inlet, Alaska; Judd Lake Weir, Cook Inlet, Alaska ENVELOPE(-160.0,-140.0,60.0,51.5) BEGINDATE: 2011-01-01T00:00:00Z ENDDATE: 2017-01-01T00:00:00Z |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(177.167,177.167,-84.983,-84.983) ENVELOPE(170.433,170.433,-85.067,-85.067) ENVELOPE(-116.251,-116.251,63.384,63.384) ENVELOPE(-106.736,-106.736,58.213,58.213) ENVELOPE(-160.0,-140.0,60.0,51.5) |
geographic |
Keta Weir Judd Judd Lake Larson Lake |
geographic_facet |
Keta Weir Judd Judd Lake Larson Lake |
genre |
Oncorhynchus gorbuscha Alaska |
genre_facet |
Oncorhynchus gorbuscha Alaska |
op_doi |
https://doi.org/10.5063/0G3HK7 |
_version_ |
1800876074055237632 |