Salmon hatchery return data, 1975-2016
This dataset contains salmon return data by release site to Alaska fisheries enhancement projects, as reported by operators. More details on this dataset can be found in the Alaska Fisheries Enhancement Annual Report, 2016 (http://www.adfg.alaska.gov/FedAidPDFs/RIR.5J.2017.04.pdf). This harvest data...
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Knowledge Network for Biocomplexity
2018
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dataone:doi:10.5063/F19021ZZ 2024-06-03T18:47:06+00:00 Salmon hatchery return data, 1975-2016 Alaska Department of Fish and Game the stae of Alaska ENVELOPE(-172.0,-130.0,71.83,51.33) BEGINDATE: 1975-01-01T00:00:00Z ENDDATE: 2016-01-01T00:00:00Z 2018-04-18T00:00:00Z https://doi.org/10.5063/F19021ZZ unknown Knowledge Network for Biocomplexity 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/F19021ZZ 2024-06-03T18:11:22Z This dataset contains salmon return data by release site to Alaska fisheries enhancement projects, as reported by operators. More details on this dataset can be found in the Alaska Fisheries Enhancement Annual Report, 2016 (http://www.adfg.alaska.gov/FedAidPDFs/RIR.5J.2017.04.pdf). This harvest data is simply how many fish were harvested by a hatchery operator in their harvest area, and is not necessarily the number of hatchery-origin fish in that harvest. The original data is contained in ADFG_Obtained_AKReturns.xlsx. The included RMarkdown script (Hatchery_returns_reformatting.Rmd) reformats these data, and assigns region information based on the release site used by the hatchery. The reformatted file is "hatchery_returns.csv". The "Project" column generally denotes the release site. "CatchType" indicates what kind of harvest project the harvested fish were a part of. This distinguishes both by sector (commercial, subsistence, sport fish), gear (for commercial sector fish), and fish caught for brood stock or cost-recovery. In some early years, the harvest was not broken out by gear, and only an estimate for generalized commercial catch was derived - these are assigned the CatchType of "commerical other." A CatchType of "other" indicates that the type of catch did not fit easily into the other categories. Negative numbers in the catch values for this dataset are real. Sometimes when a sample of fish is taken at the hatchery or the escapement to a system where a hatchery is located, not all the fish may originate from that hatchery. The fish may be wild fish from the system or hatchery fish from another hatchery. The negative numbers are there to reduce the total of hatchery fish that were counted in the brood stock or escapement by those non-hatchery fish, where non-hatchery fish are known to exist in the harvest. Dataset Oncorhynchus gorbuscha Alaska Knowledge Network for Biocomplexity (via DataONE) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-172.0,-130.0,71.83,51.33) |
institution |
Open Polar |
collection |
Knowledge Network for Biocomplexity (via DataONE) |
op_collection_id |
dataone:urn:node:KNB |
language |
unknown |
topic |
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 |
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 Salmon hatchery return data, 1975-2016 |
topic_facet |
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 |
This dataset contains salmon return data by release site to Alaska fisheries enhancement projects, as reported by operators. More details on this dataset can be found in the Alaska Fisheries Enhancement Annual Report, 2016 (http://www.adfg.alaska.gov/FedAidPDFs/RIR.5J.2017.04.pdf). This harvest data is simply how many fish were harvested by a hatchery operator in their harvest area, and is not necessarily the number of hatchery-origin fish in that harvest. The original data is contained in ADFG_Obtained_AKReturns.xlsx. The included RMarkdown script (Hatchery_returns_reformatting.Rmd) reformats these data, and assigns region information based on the release site used by the hatchery. The reformatted file is "hatchery_returns.csv". The "Project" column generally denotes the release site. "CatchType" indicates what kind of harvest project the harvested fish were a part of. This distinguishes both by sector (commercial, subsistence, sport fish), gear (for commercial sector fish), and fish caught for brood stock or cost-recovery. In some early years, the harvest was not broken out by gear, and only an estimate for generalized commercial catch was derived - these are assigned the CatchType of "commerical other." A CatchType of "other" indicates that the type of catch did not fit easily into the other categories. Negative numbers in the catch values for this dataset are real. Sometimes when a sample of fish is taken at the hatchery or the escapement to a system where a hatchery is located, not all the fish may originate from that hatchery. The fish may be wild fish from the system or hatchery fish from another hatchery. The negative numbers are there to reduce the total of hatchery fish that were counted in the brood stock or escapement by those non-hatchery fish, where non-hatchery fish are known to exist in the harvest. |
format |
Dataset |
author |
Alaska Department of Fish and Game |
author_facet |
Alaska Department of Fish and Game |
author_sort |
Alaska Department of Fish and Game |
title |
Salmon hatchery return data, 1975-2016 |
title_short |
Salmon hatchery return data, 1975-2016 |
title_full |
Salmon hatchery return data, 1975-2016 |
title_fullStr |
Salmon hatchery return data, 1975-2016 |
title_full_unstemmed |
Salmon hatchery return data, 1975-2016 |
title_sort |
salmon hatchery return data, 1975-2016 |
publisher |
Knowledge Network for Biocomplexity |
publishDate |
2018 |
url |
https://doi.org/10.5063/F19021ZZ |
op_coverage |
the stae of Alaska ENVELOPE(-172.0,-130.0,71.83,51.33) BEGINDATE: 1975-01-01T00:00:00Z ENDDATE: 2016-01-01T00:00:00Z |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-172.0,-130.0,71.83,51.33) |
geographic |
Keta |
geographic_facet |
Keta |
genre |
Oncorhynchus gorbuscha Alaska |
genre_facet |
Oncorhynchus gorbuscha Alaska |
op_doi |
https://doi.org/10.5063/F19021ZZ |
_version_ |
1800876067098984448 |