Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska
Thesis (M.S.) University of Alaska Fairbanks, 1980 An assessment of rate of damage to netted fishes and to fishing gear caused by marine mammals, and of rate of incidental catch and kill of marine mammals by fishermen, was undertaken for the salmon drift gillnet fisheries of the Copper River-Prince...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/5253 2023-10-25T01:42:52+02:00 Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska Matkin, Craig O. 1980-12 http://hdl.handle.net/11122/5253 en_US eng http://hdl.handle.net/11122/5253 Marine mammals Alaska Copper River Region Salmon fisheries Fisheries Prince William Sound Thesis 1980 ftunivalaska 2023-09-28T18:02:37Z Thesis (M.S.) University of Alaska Fairbanks, 1980 An assessment of rate of damage to netted fishes and to fishing gear caused by marine mammals, and of rate of incidental catch and kill of marine mammals by fishermen, was undertaken for the salmon drift gillnet fisheries of the Copper River-Prince William Sound area, Alaska, in 1977 and 1978. Amounts of damage to netted fishes ranged from approximately 1.8 to 8.3 percent of the total catch. Damages were attributed to Steller sea lions (Eumetopias jubatus), which also were responsible for the majority of damages to nets, and to harbor seals (Phoca vitulina). Of the approximately 1000 mammals incidentally killed in 1978, about half were harbor seals and 40% were sea lions; the remainder were harbor and Dali porpoises (Phocoena phoccoena and Phocoenoides dalli) and sea otters (Enhydra tutris). Recommendations are made for modification of fishing methods to reduce the damages by and incidental kill of marine mammals. Thesis Phoca vitulina Alaska University of Alaska: ScholarWorks@UA Fairbanks |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Marine mammals Alaska Copper River Region Salmon fisheries Fisheries Prince William Sound |
spellingShingle |
Marine mammals Alaska Copper River Region Salmon fisheries Fisheries Prince William Sound Matkin, Craig O. Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
topic_facet |
Marine mammals Alaska Copper River Region Salmon fisheries Fisheries Prince William Sound |
description |
Thesis (M.S.) University of Alaska Fairbanks, 1980 An assessment of rate of damage to netted fishes and to fishing gear caused by marine mammals, and of rate of incidental catch and kill of marine mammals by fishermen, was undertaken for the salmon drift gillnet fisheries of the Copper River-Prince William Sound area, Alaska, in 1977 and 1978. Amounts of damage to netted fishes ranged from approximately 1.8 to 8.3 percent of the total catch. Damages were attributed to Steller sea lions (Eumetopias jubatus), which also were responsible for the majority of damages to nets, and to harbor seals (Phoca vitulina). Of the approximately 1000 mammals incidentally killed in 1978, about half were harbor seals and 40% were sea lions; the remainder were harbor and Dali porpoises (Phocoena phoccoena and Phocoenoides dalli) and sea otters (Enhydra tutris). Recommendations are made for modification of fishing methods to reduce the damages by and incidental kill of marine mammals. |
format |
Thesis |
author |
Matkin, Craig O. |
author_facet |
Matkin, Craig O. |
author_sort |
Matkin, Craig O. |
title |
Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
title_short |
Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
title_full |
Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
title_fullStr |
Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
title_full_unstemmed |
Marine mammal and fishery interactions on the Copper River Delta and in Prince William Sound, Alaska |
title_sort |
marine mammal and fishery interactions on the copper river delta and in prince william sound, alaska |
publishDate |
1980 |
url |
http://hdl.handle.net/11122/5253 |
geographic |
Fairbanks |
geographic_facet |
Fairbanks |
genre |
Phoca vitulina Alaska |
genre_facet |
Phoca vitulina Alaska |
op_relation |
http://hdl.handle.net/11122/5253 |
_version_ |
1780739569581293568 |