Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia
A trophodynamics model is used to estimate annual plankton and fish production for the southern British Columbia continental shelf during 1985–89. The model describes the feeding interactions among diatoms, copepods, euphausiids, juvenile and adult Pacific herring (Clupea pallasi), Pacific hake (Mer...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
1994
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Online Access: | http://dx.doi.org/10.1139/f94-175 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-175 |
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crcansciencepubl:10.1139/f94-175 2024-03-03T08:49:27+00:00 Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia Robinson, Clifford L. K. Ware, Daniel M. 1994 http://dx.doi.org/10.1139/f94-175 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-175 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue 8, page 1737-1751 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1994 crcansciencepubl https://doi.org/10.1139/f94-175 2024-02-07T10:53:36Z A trophodynamics model is used to estimate annual plankton and fish production for the southern British Columbia continental shelf during 1985–89. The model describes the feeding interactions among diatoms, copepods, euphausiids, juvenile and adult Pacific herring (Clupea pallasi), Pacific hake (Merluccius productus), chinook salmon (Oncorhynchus tshawytscha), and spiny dogfish (Squalus acanthias) and is forced by empirical seasonal patterns in upwelling, sea surface temperature, and solar radiation. The most important simulation results are that (1) there is an imbalance between fish consumption and euphausiid production during the summer upwelling season, (2) the biomass and arrival timing of migratory hake significantly influence plankton and fish production, and (3) about 11% of the 332 g C∙m −2 ∙yr −1 annual diatom production is transferred to copepods and euphausiids and 1.0% of the diatom production to fish, while 27.5% of the 11.9 g C∙m −2 ∙yr −1 euphausiid production is consumed by herring and hake. The high plankton and fish production on the southern British Columbia shelf is comparable with other productive coastal upwelling regions. Article in Journal/Newspaper Copepods spiny dogfish Squalus acanthias Canadian Science Publishing Pacific Hake ENVELOPE(15.612,15.612,66.797,66.797) Canadian Journal of Fisheries and Aquatic Sciences 51 8 1737 1751 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Robinson, Clifford L. K. Ware, Daniel M. Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A trophodynamics model is used to estimate annual plankton and fish production for the southern British Columbia continental shelf during 1985–89. The model describes the feeding interactions among diatoms, copepods, euphausiids, juvenile and adult Pacific herring (Clupea pallasi), Pacific hake (Merluccius productus), chinook salmon (Oncorhynchus tshawytscha), and spiny dogfish (Squalus acanthias) and is forced by empirical seasonal patterns in upwelling, sea surface temperature, and solar radiation. The most important simulation results are that (1) there is an imbalance between fish consumption and euphausiid production during the summer upwelling season, (2) the biomass and arrival timing of migratory hake significantly influence plankton and fish production, and (3) about 11% of the 332 g C∙m −2 ∙yr −1 annual diatom production is transferred to copepods and euphausiids and 1.0% of the diatom production to fish, while 27.5% of the 11.9 g C∙m −2 ∙yr −1 euphausiid production is consumed by herring and hake. The high plankton and fish production on the southern British Columbia shelf is comparable with other productive coastal upwelling regions. |
format |
Article in Journal/Newspaper |
author |
Robinson, Clifford L. K. Ware, Daniel M. |
author_facet |
Robinson, Clifford L. K. Ware, Daniel M. |
author_sort |
Robinson, Clifford L. K. |
title |
Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
title_short |
Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
title_full |
Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
title_fullStr |
Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
title_full_unstemmed |
Modelling Pelagic Fish and Plankton Trophodynamics off Southwestern Vancouver Island, British Columbia |
title_sort |
modelling pelagic fish and plankton trophodynamics off southwestern vancouver island, british columbia |
publisher |
Canadian Science Publishing |
publishDate |
1994 |
url |
http://dx.doi.org/10.1139/f94-175 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-175 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Pacific Hake |
geographic_facet |
Pacific Hake |
genre |
Copepods spiny dogfish Squalus acanthias |
genre_facet |
Copepods spiny dogfish Squalus acanthias |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue 8, page 1737-1751 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f94-175 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
51 |
container_issue |
8 |
container_start_page |
1737 |
op_container_end_page |
1751 |
_version_ |
1792506658531835904 |