Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska
ABSTRACT Immunological detection of yolk protein was used to assess predation by pelagic amphipods (gammarid and hyperiid), mysids, and euphausiids on eggs and yolk‐sac larvae of walleye pollock Theragra chalcogramma during 1988 and 1989. Consumption estimates were made on the basis of frequency of...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
1993
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Online Access: | http://dx.doi.org/10.1111/j.1365-2419.1993.tb00010.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2419.1993.tb00010.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2419.1993.tb00010.x |
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crwiley:10.1111/j.1365-2419.1993.tb00010.x 2024-06-23T07:57:11+00:00 Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska BAILEY, KEVIN M. BRODEUR, RICHARD D. MERATI, NAZILA YOKLAVICH, AND MARY M. 1993 http://dx.doi.org/10.1111/j.1365-2419.1993.tb00010.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2419.1993.tb00010.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2419.1993.tb00010.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 2, issue 1, page 30-39 ISSN 1054-6006 1365-2419 journal-article 1993 crwiley https://doi.org/10.1111/j.1365-2419.1993.tb00010.x 2024-05-31T08:16:02Z ABSTRACT Immunological detection of yolk protein was used to assess predation by pelagic amphipods (gammarid and hyperiid), mysids, and euphausiids on eggs and yolk‐sac larvae of walleye pollock Theragra chalcogramma during 1988 and 1989. Consumption estimates were made on the basis of frequency of positive immunoassays, assay detection times (gut clearance time), predator abundance, and spatial overlap of predators and prey. From our results gammarid amphipods and euphausiids were important predators on eggs and yolk‐sac larvae, respectively. Gammarid amphipods alone consumed about 14% of the standing stock of pollock eggs in 1989. These results were compared with those from clearance rate experiments of predators feeding on pollock eggs in 300‐1 bags. In general, clearance rate estimates of egg consumption were lower than those determined from gut contents. Article in Journal/Newspaper Theragra chalcogramma Alaska Wiley Online Library Gulf of Alaska Fisheries Oceanography 2 1 30 39 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Immunological detection of yolk protein was used to assess predation by pelagic amphipods (gammarid and hyperiid), mysids, and euphausiids on eggs and yolk‐sac larvae of walleye pollock Theragra chalcogramma during 1988 and 1989. Consumption estimates were made on the basis of frequency of positive immunoassays, assay detection times (gut clearance time), predator abundance, and spatial overlap of predators and prey. From our results gammarid amphipods and euphausiids were important predators on eggs and yolk‐sac larvae, respectively. Gammarid amphipods alone consumed about 14% of the standing stock of pollock eggs in 1989. These results were compared with those from clearance rate experiments of predators feeding on pollock eggs in 300‐1 bags. In general, clearance rate estimates of egg consumption were lower than those determined from gut contents. |
format |
Article in Journal/Newspaper |
author |
BAILEY, KEVIN M. BRODEUR, RICHARD D. MERATI, NAZILA YOKLAVICH, AND MARY M. |
spellingShingle |
BAILEY, KEVIN M. BRODEUR, RICHARD D. MERATI, NAZILA YOKLAVICH, AND MARY M. Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
author_facet |
BAILEY, KEVIN M. BRODEUR, RICHARD D. MERATI, NAZILA YOKLAVICH, AND MARY M. |
author_sort |
BAILEY, KEVIN M. |
title |
Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
title_short |
Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
title_full |
Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
title_fullStr |
Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
title_full_unstemmed |
Predation on walleye pollock (Theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western Gulf of Alaska |
title_sort |
predation on walleye pollock (theragra chakograrnma) eggs and yolk‐sac larvae by pelagic crustacean invertebrates in the western gulf of alaska |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1365-2419.1993.tb00010.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2419.1993.tb00010.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2419.1993.tb00010.x |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Theragra chalcogramma Alaska |
genre_facet |
Theragra chalcogramma Alaska |
op_source |
Fisheries Oceanography volume 2, issue 1, page 30-39 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2419.1993.tb00010.x |
container_title |
Fisheries Oceanography |
container_volume |
2 |
container_issue |
1 |
container_start_page |
30 |
op_container_end_page |
39 |
_version_ |
1802650694044352512 |