The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO)
From the 1970s to 1990s, a reduction in the body size of Japanese chum salmon (Oncorhynchus keta) was observed. To investigate this body size reduction in the North Pacific, we developed a bioenergetics model for chum salmon coupled with the results from a lower trophic ecosystem model embedded into...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/43182 2023-05-15T15:43:53+02:00 The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) Kishi, Michio J. Kaeriyama, Masahide Ueno, Hiromichi Kamezawa, Yasuko http://hdl.handle.net/2115/43182 https://doi.org/10.1016/j.dsr2.2009.12.013 eng eng Elsevier http://www.sciencedirect.com/science/journal/09670645 http://hdl.handle.net/2115/43182 Deep Sea Research Part II: Topical Studies in Oceanography, 57(13-14): 1257-1265 http://dx.doi.org/10.1016/j.dsr2.2009.12.013 bioenergetics model Japanese chum salmon size reduction NEMURO global warming 452 article (author version) fthokunivhus https://doi.org/10.1016/j.dsr2.2009.12.013 2022-11-18T01:02:02Z From the 1970s to 1990s, a reduction in the body size of Japanese chum salmon (Oncorhynchus keta) was observed. To investigate this body size reduction in the North Pacific, we developed a bioenergetics model for chum salmon coupled with the results from a lower trophic ecosystem model embedded into a three-dimensional global model. In the bioenergetics model, respiration and consumption terms are assumed to be functions of water temperature and prey zooplankton density, which are the determining factors of the reduction of body size. The model reproduced the body size of the 1972 and 1991 year classes of chum salmon. The reproduced body size of the 1972 year class was larger than that of 1991 year class, and this result agrees with observations from the Bering Sea. Our model also reproduced the body size trend from l970 to 2000. The prey density, especially in the eastern North Pacific, had a greater influence on the change of body size than did the SST. This suggests that the size reduction of Japanese chum salmon in the 1990s was partly affected by changes in prey zooplankton density. In the context of the global warming scenario, we discuss changes in the migration route of chum salmon and predict that the population of Japanese chum salmon experience significant declines over this century. Article in Journal/Newspaper Bering Sea Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Bering Sea Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Deep Sea Research Part II: Topical Studies in Oceanography 57 13-14 1257 1265 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
bioenergetics model Japanese chum salmon size reduction NEMURO global warming 452 |
spellingShingle |
bioenergetics model Japanese chum salmon size reduction NEMURO global warming 452 Kishi, Michio J. Kaeriyama, Masahide Ueno, Hiromichi Kamezawa, Yasuko The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
topic_facet |
bioenergetics model Japanese chum salmon size reduction NEMURO global warming 452 |
description |
From the 1970s to 1990s, a reduction in the body size of Japanese chum salmon (Oncorhynchus keta) was observed. To investigate this body size reduction in the North Pacific, we developed a bioenergetics model for chum salmon coupled with the results from a lower trophic ecosystem model embedded into a three-dimensional global model. In the bioenergetics model, respiration and consumption terms are assumed to be functions of water temperature and prey zooplankton density, which are the determining factors of the reduction of body size. The model reproduced the body size of the 1972 and 1991 year classes of chum salmon. The reproduced body size of the 1972 year class was larger than that of 1991 year class, and this result agrees with observations from the Bering Sea. Our model also reproduced the body size trend from l970 to 2000. The prey density, especially in the eastern North Pacific, had a greater influence on the change of body size than did the SST. This suggests that the size reduction of Japanese chum salmon in the 1990s was partly affected by changes in prey zooplankton density. In the context of the global warming scenario, we discuss changes in the migration route of chum salmon and predict that the population of Japanese chum salmon experience significant declines over this century. |
format |
Article in Journal/Newspaper |
author |
Kishi, Michio J. Kaeriyama, Masahide Ueno, Hiromichi Kamezawa, Yasuko |
author_facet |
Kishi, Michio J. Kaeriyama, Masahide Ueno, Hiromichi Kamezawa, Yasuko |
author_sort |
Kishi, Michio J. |
title |
The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
title_short |
The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
title_full |
The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
title_fullStr |
The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
title_full_unstemmed |
The effect of climate change on the growth of Japanese chum salmon (Oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (NEMURO) |
title_sort |
effect of climate change on the growth of japanese chum salmon (oncorhynchus keta) using a bioenergetics model coupled with a three-dimensional lower trophic ecosystem model (nemuro) |
publisher |
Elsevier |
url |
http://hdl.handle.net/2115/43182 https://doi.org/10.1016/j.dsr2.2009.12.013 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Bering Sea Keta Pacific |
geographic_facet |
Bering Sea Keta Pacific |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_relation |
http://www.sciencedirect.com/science/journal/09670645 http://hdl.handle.net/2115/43182 Deep Sea Research Part II: Topical Studies in Oceanography, 57(13-14): 1257-1265 http://dx.doi.org/10.1016/j.dsr2.2009.12.013 |
op_doi |
https://doi.org/10.1016/j.dsr2.2009.12.013 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
57 |
container_issue |
13-14 |
container_start_page |
1257 |
op_container_end_page |
1265 |
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1766378086812614656 |