HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA
A bstract Feeding activity of harbor seals ( Phoca vitulina ) was monitored while the California Department of Fish and Game seined and tagged migrating adult salmonids between 1984 and 1988. The number of predations observed each week of observation was significantly correlated with the number of f...
Published in: | Marine Mammal Science |
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Online Access: | http://dx.doi.org/10.1111/j.1748-7692.1995.tb00292.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1995.tb00292.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1995.tb00292.x |
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crwiley:10.1111/j.1748-7692.1995.tb00292.x 2023-12-03T10:23:45+01:00 HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA Stanley, William T. Shaffer, Kevin E. 1995 http://dx.doi.org/10.1111/j.1748-7692.1995.tb00292.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1995.tb00292.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1995.tb00292.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 11, issue 3, page 376-385 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1995 crwiley https://doi.org/10.1111/j.1748-7692.1995.tb00292.x 2023-11-09T14:11:59Z A bstract Feeding activity of harbor seals ( Phoca vitulina ) was monitored while the California Department of Fish and Game seined and tagged migrating adult salmonids between 1984 and 1988. The number of predations observed each week of observation was significantly correlated with the number of fish seined during that week. There was a significantly higher number of predations observed on days when seining took place than on days when no seining occurred. Our observations suggest that most, if not all, predations we observed on days when seining occurred involved fish that had been recently seined and released. The estimated percentage of seined fish taken by seals was relatively constant over the five years of the study, ranging from 3.1% to 5.5%. Various strategies for reducing the level of predation on seined salmonids in the lower Klamath River are discussed. Article in Journal/Newspaper harbor seal Phoca vitulina Wiley Online Library (via Crossref) Marine Mammal Science 11 3 376 385 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Stanley, William T. Shaffer, Kevin E. HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A bstract Feeding activity of harbor seals ( Phoca vitulina ) was monitored while the California Department of Fish and Game seined and tagged migrating adult salmonids between 1984 and 1988. The number of predations observed each week of observation was significantly correlated with the number of fish seined during that week. There was a significantly higher number of predations observed on days when seining took place than on days when no seining occurred. Our observations suggest that most, if not all, predations we observed on days when seining occurred involved fish that had been recently seined and released. The estimated percentage of seined fish taken by seals was relatively constant over the five years of the study, ranging from 3.1% to 5.5%. Various strategies for reducing the level of predation on seined salmonids in the lower Klamath River are discussed. |
format |
Article in Journal/Newspaper |
author |
Stanley, William T. Shaffer, Kevin E. |
author_facet |
Stanley, William T. Shaffer, Kevin E. |
author_sort |
Stanley, William T. |
title |
HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
title_short |
HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
title_full |
HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
title_fullStr |
HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
title_full_unstemmed |
HARBOR SEAL ( PHOCA VITULINA ) PREDATION ON SEINED SALMONIDS IN THE LOWER KLAMATH RIVER, CALIFORNIA |
title_sort |
harbor seal ( phoca vitulina ) predation on seined salmonids in the lower klamath river, california |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1111/j.1748-7692.1995.tb00292.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.1995.tb00292.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.1995.tb00292.x |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_source |
Marine Mammal Science volume 11, issue 3, page 376-385 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.1995.tb00292.x |
container_title |
Marine Mammal Science |
container_volume |
11 |
container_issue |
3 |
container_start_page |
376 |
op_container_end_page |
385 |
_version_ |
1784271998761828352 |