The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales
[u'The results from an ecosystem research program are summarized. It was conducted in the Saguenay\u2013St. Lawrence Marine Park to understand the basic processes responsible for the existence of this traditional whale feeding ground, discovered by the Basques whalers 450 years ago. Persistent...
Published in: | Revue des sciences de l'eau |
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Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Consortium Erudit
2009
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Online Access: | http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://doi.org/10.7202/037481ar https://id.erudit.org/iderudit/037481ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar/ https://core.ac.uk/display/59326164 https://www.erudit.org/revue/rseau/2009/v22/n2/037481ar.html?vue=resume http://id.erudit.org/iderudit/037481ar https://academic.microsoft.com/#/detail/1905330384 |
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Open Polar |
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topic |
Sciences Humaines et Sociales Social Sciences and Humanities site d’alimentation des baleines habitat critique tête de chenal canyon « upwelling » courants estuaire whale feeding ground critical habitat ecosystem hot spot channel head currents estuary envir geo |
spellingShingle |
Sciences Humaines et Sociales Social Sciences and Humanities site d’alimentation des baleines habitat critique tête de chenal canyon « upwelling » courants estuaire whale feeding ground critical habitat ecosystem hot spot channel head currents estuary envir geo Yvan Simard The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
topic_facet |
Sciences Humaines et Sociales Social Sciences and Humanities site d’alimentation des baleines habitat critique tête de chenal canyon « upwelling » courants estuaire whale feeding ground critical habitat ecosystem hot spot channel head currents estuary envir geo |
description |
[u'The results from an ecosystem research program are summarized. It was conducted in the Saguenay\u2013St. Lawrence Marine Park to understand the basic processes responsible for the existence of this traditional whale feeding ground, discovered by the Basques whalers 450 years ago. Persistent processes maintain aggregated whale preys at the head of the main deep-water channel of eastern Canada continental shelf. What are they?', u'This site is the richest krill aggregation yet documented in the northwest Atlantic. The mechanisms responsible are the pumping, retention and concentration of adult krill from the Gulf of St. Lawrence, by the strong estuarine circulation of the St. Lawrence. Tidal currents upwelling along channels and bank slopes combine with adult krill vertical behavior and concentrate it. This process is more intense at the head of the channels where tidal upwelling is amplified. It is locally enhanced by wind-driven coastal upwelling. The mean circulation transports the rich krill patches along the slopes of the basins. At the mouth of the estuary, the concentrated krill at the margin of the large cyclonic Anticosti gyre (counterclockwise) is injected into the lower estuary on the northern side, under favorable circulation conditions. The narrow slope current flowing upstream along the estuary then imports it towards the Marine Park krill aggregation zone. Pelagic forage fish such as capelin also aggregate at the channel head and entrance of the fjord under the action of the tidal upwelling currents and fronts, which also concentrate and enhance the availability of their preys. They contribute to the feeding of whales and sea birds.', u'Special oceanographic features, seldom found elsewhere, combine in the Marine Park to generate this whale feeding ground. Anthropogenic pressures and climate change are the main threats to its preservation for the next centuries.'] [u'Les r\xe9sultats d\u2019un programme de recherche \xe9cosyst\xe9mique, men\xe9 dans le Parc Marin Saguenay\u2013Saint-Laurent, ... |
format |
Article in Journal/Newspaper |
author |
Yvan Simard |
author_facet |
Yvan Simard |
author_sort |
Yvan Simard |
title |
The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
title_short |
The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
title_full |
The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
title_fullStr |
The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
title_full_unstemmed |
The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales |
title_sort |
saguenay–st. lawrence marine park: oceanographic processes at the basis of this unique forage site of northwest atlantic whales |
publisher |
Consortium Erudit |
publishDate |
2009 |
url |
http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://doi.org/10.7202/037481ar https://id.erudit.org/iderudit/037481ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar/ https://core.ac.uk/display/59326164 https://www.erudit.org/revue/rseau/2009/v22/n2/037481ar.html?vue=resume http://id.erudit.org/iderudit/037481ar https://academic.microsoft.com/#/detail/1905330384 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
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Revue des sciences de l'eau |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::ba65660104159b4c4ab367d5d9522317 2023-05-15T17:45:36+02:00 The Saguenay–St. Lawrence Marine Park: oceanographic processes at the basis of this unique forage site of northwest Atlantic whales Yvan Simard 2009-06-15 http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://doi.org/10.7202/037481ar https://id.erudit.org/iderudit/037481ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar/ https://core.ac.uk/display/59326164 https://www.erudit.org/revue/rseau/2009/v22/n2/037481ar.html?vue=resume http://id.erudit.org/iderudit/037481ar https://academic.microsoft.com/#/detail/1905330384 undefined unknown Consortium Erudit http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar.pdf http://dx.doi.org/10.7202/037481ar https://dx.doi.org/10.7202/037481ar https://id.erudit.org/iderudit/037481ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037481ar/ https://core.ac.uk/display/59326164 https://www.erudit.org/revue/rseau/2009/v22/n2/037481ar.html?vue=resume http://id.erudit.org/iderudit/037481ar https://academic.microsoft.com/#/detail/1905330384 undefined 10.7202/037481ar oai:erudit.org:037481ar 037481ar 1905330384 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|opendoar____::16e6a3326dd7d868cbc926602a61e4d0 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::130cf49e979129942002da43f89d0654 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a Sciences Humaines et Sociales Social Sciences and Humanities site d’alimentation des baleines habitat critique tête de chenal canyon « upwelling » courants estuaire whale feeding ground critical habitat ecosystem hot spot channel head currents estuary envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2009 fttriple https://doi.org/10.7202/037481ar 2023-01-22T17:15:54Z [u'The results from an ecosystem research program are summarized. It was conducted in the Saguenay\u2013St. Lawrence Marine Park to understand the basic processes responsible for the existence of this traditional whale feeding ground, discovered by the Basques whalers 450 years ago. Persistent processes maintain aggregated whale preys at the head of the main deep-water channel of eastern Canada continental shelf. What are they?', u'This site is the richest krill aggregation yet documented in the northwest Atlantic. The mechanisms responsible are the pumping, retention and concentration of adult krill from the Gulf of St. Lawrence, by the strong estuarine circulation of the St. Lawrence. Tidal currents upwelling along channels and bank slopes combine with adult krill vertical behavior and concentrate it. This process is more intense at the head of the channels where tidal upwelling is amplified. It is locally enhanced by wind-driven coastal upwelling. The mean circulation transports the rich krill patches along the slopes of the basins. At the mouth of the estuary, the concentrated krill at the margin of the large cyclonic Anticosti gyre (counterclockwise) is injected into the lower estuary on the northern side, under favorable circulation conditions. The narrow slope current flowing upstream along the estuary then imports it towards the Marine Park krill aggregation zone. Pelagic forage fish such as capelin also aggregate at the channel head and entrance of the fjord under the action of the tidal upwelling currents and fronts, which also concentrate and enhance the availability of their preys. They contribute to the feeding of whales and sea birds.', u'Special oceanographic features, seldom found elsewhere, combine in the Marine Park to generate this whale feeding ground. Anthropogenic pressures and climate change are the main threats to its preservation for the next centuries.'] [u'Les r\xe9sultats d\u2019un programme de recherche \xe9cosyst\xe9mique, men\xe9 dans le Parc Marin Saguenay\u2013Saint-Laurent, ... Article in Journal/Newspaper Northwest Atlantic Unknown Canada Revue des sciences de l'eau 22 2 177 197 |