Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model.
We developed a physical‐biological model for the Gulf of St. Lawrence (GSL) and Scotian Shelf (SS) by coupling a stage‐based life‐history model of the planktonic copepod Calanus finmarchicus to a three‐dimensional ocean circulation model. The life‐history model consists of 13 morphologically distinc...
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2003
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Online Access: | https://espace.inrs.ca/id/eprint/9419/ https://espace.inrs.ca/id/eprint/9419/1/P1123.pdf https://doi.org/10.1029/2002JC001410 |
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ftinrsquebec:oai:espace.inrs.ca:9419 2023-05-15T15:47:57+02:00 Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. Zakardjian, Bruno A. Sheng, Jinyu Runge, Jeffrey A. McLaren, Ian Plourde, Stéphane Thompson, Keith R. Gratton, Yves 2003 application/pdf https://espace.inrs.ca/id/eprint/9419/ https://espace.inrs.ca/id/eprint/9419/1/P1123.pdf https://doi.org/10.1029/2002JC001410 en eng https://espace.inrs.ca/id/eprint/9419/1/P1123.pdf Zakardjian, Bruno A., Sheng, Jinyu, Runge, Jeffrey A., McLaren, Ian, Plourde, Stéphane, Thompson, Keith R. et Gratton, Yves (2003). Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. Journal of Geophysical Research , vol. 108 , nº C11. DOI:10.1029/2002JC001410 <https://doi.org/10.1029/2002JC001410>. doi:10.1029/2002JC001410 Calanus finmarchicus GLOBEC hydrodynamic model life‐cycle model Gulf of St. Lawrence Scotian Shelf Article Évalué par les pairs 2003 ftinrsquebec https://doi.org/10.1029/2002JC001410 2023-02-10T11:45:37Z We developed a physical‐biological model for the Gulf of St. Lawrence (GSL) and Scotian Shelf (SS) by coupling a stage‐based life‐history model of the planktonic copepod Calanus finmarchicus to a three‐dimensional ocean circulation model. The life‐history model consists of 13 morphologically distinct life stages of C. finmarchicus, with stage‐specific and temperature‐dependent molting rates. The model also includes stage‐specific vertical distribution and seasonally varying diapause, egg production, and stage‐specific mortality rates. The model domain covers the eastern Canadian shelf from 55°W to 72°W and from 39°N to 52°N, including the Gulf of St. Lawrence, Scotian Shelf, and Gulf of Maine. A comparison of a 1‐year simulation with observations indicates that the physical‐biological model reasonably describes the observed abundance and distribution of C. finmarchicus in this region. To determine the effects of ocean circulation in the C. finmarchicus population dynamics, we divided the GSL‐SS region into eight sub‐areas and compared the net fluxes of C. finmarchicus across lateral boundaries to the net production in each sub‐area. We found that the annual cross‐boundary exchange rates constitute from <1% to 39% of the local net production, indicating that the horizontal transport of C. finmarchicus by the ocean currents can play a very important role in the dynamics of local C. finmarchicus populations. The results provide insights into the mechanisms of exchange in the GSL‐SS system, as put forward in recent hypotheses. Article in Journal/Newspaper Calanus finmarchicus Institut national de la recherche scientifique, Québec: Espace INRS Journal of Geophysical Research 108 C11 |
institution |
Open Polar |
collection |
Institut national de la recherche scientifique, Québec: Espace INRS |
op_collection_id |
ftinrsquebec |
language |
English |
topic |
Calanus finmarchicus GLOBEC hydrodynamic model life‐cycle model Gulf of St. Lawrence Scotian Shelf |
spellingShingle |
Calanus finmarchicus GLOBEC hydrodynamic model life‐cycle model Gulf of St. Lawrence Scotian Shelf Zakardjian, Bruno A. Sheng, Jinyu Runge, Jeffrey A. McLaren, Ian Plourde, Stéphane Thompson, Keith R. Gratton, Yves Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
topic_facet |
Calanus finmarchicus GLOBEC hydrodynamic model life‐cycle model Gulf of St. Lawrence Scotian Shelf |
description |
We developed a physical‐biological model for the Gulf of St. Lawrence (GSL) and Scotian Shelf (SS) by coupling a stage‐based life‐history model of the planktonic copepod Calanus finmarchicus to a three‐dimensional ocean circulation model. The life‐history model consists of 13 morphologically distinct life stages of C. finmarchicus, with stage‐specific and temperature‐dependent molting rates. The model also includes stage‐specific vertical distribution and seasonally varying diapause, egg production, and stage‐specific mortality rates. The model domain covers the eastern Canadian shelf from 55°W to 72°W and from 39°N to 52°N, including the Gulf of St. Lawrence, Scotian Shelf, and Gulf of Maine. A comparison of a 1‐year simulation with observations indicates that the physical‐biological model reasonably describes the observed abundance and distribution of C. finmarchicus in this region. To determine the effects of ocean circulation in the C. finmarchicus population dynamics, we divided the GSL‐SS region into eight sub‐areas and compared the net fluxes of C. finmarchicus across lateral boundaries to the net production in each sub‐area. We found that the annual cross‐boundary exchange rates constitute from <1% to 39% of the local net production, indicating that the horizontal transport of C. finmarchicus by the ocean currents can play a very important role in the dynamics of local C. finmarchicus populations. The results provide insights into the mechanisms of exchange in the GSL‐SS system, as put forward in recent hypotheses. |
format |
Article in Journal/Newspaper |
author |
Zakardjian, Bruno A. Sheng, Jinyu Runge, Jeffrey A. McLaren, Ian Plourde, Stéphane Thompson, Keith R. Gratton, Yves |
author_facet |
Zakardjian, Bruno A. Sheng, Jinyu Runge, Jeffrey A. McLaren, Ian Plourde, Stéphane Thompson, Keith R. Gratton, Yves |
author_sort |
Zakardjian, Bruno A. |
title |
Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
title_short |
Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
title_full |
Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
title_fullStr |
Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
title_full_unstemmed |
Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
title_sort |
effects of temperature and circulation on the population dynamics ofcalanus finmarchicusin the gulf of st. lawrence and scotian shelf: study with a coupled, three-dimensional hydrodynamic, stage-based life history model. |
publishDate |
2003 |
url |
https://espace.inrs.ca/id/eprint/9419/ https://espace.inrs.ca/id/eprint/9419/1/P1123.pdf https://doi.org/10.1029/2002JC001410 |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_relation |
https://espace.inrs.ca/id/eprint/9419/1/P1123.pdf Zakardjian, Bruno A., Sheng, Jinyu, Runge, Jeffrey A., McLaren, Ian, Plourde, Stéphane, Thompson, Keith R. et Gratton, Yves (2003). Effects of temperature and circulation on the population dynamics ofCalanus finmarchicusin the Gulf of St. Lawrence and Scotian Shelf: Study with a coupled, three-dimensional hydrodynamic, stage-based life history model. Journal of Geophysical Research , vol. 108 , nº C11. DOI:10.1029/2002JC001410 <https://doi.org/10.1029/2002JC001410>. doi:10.1029/2002JC001410 |
op_doi |
https://doi.org/10.1029/2002JC001410 |
container_title |
Journal of Geophysical Research |
container_volume |
108 |
container_issue |
C11 |
_version_ |
1766382940542992384 |