Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique
An isolated and practically unknown population of Mysis litoralis was sampled biweekly with plankton nets in the Saguenay fjord, in May–October 1975 and April–May 1976. In April and May, this arctic mysid is almost absent upstream and occurs mainly in the central and lower parts of the fjord. From J...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1980
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Online Access: | http://dx.doi.org/10.1139/z80-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/z80-100 |
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crcansciencepubl:10.1139/z80-100 2023-12-17T10:26:22+01:00 Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique Ladurantaye, Réjean de Lacroix, Guy 1980 http://dx.doi.org/10.1139/z80-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/z80-100 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 58, issue 5, page 693-700 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1980 crcansciencepubl https://doi.org/10.1139/z80-100 2023-11-19T13:39:13Z An isolated and practically unknown population of Mysis litoralis was sampled biweekly with plankton nets in the Saguenay fjord, in May–October 1975 and April–May 1976. In April and May, this arctic mysid is almost absent upstream and occurs mainly in the central and lower parts of the fjord. From June to October, it is restricted in distribution to the lower part of the fjord. There, M. litoralis inhabits deep waters (100–200 m)of< 5 °C in May and June, but is found mainly in shallower (up to 5 m) and warmer waters from July to October, regardless of the age of individuals. The vertical salinity range in the fjord is 2–3‰. Reproductive activity occurs only once a year, in late October or early November, and young mysids, then averaging a length of 3.8 mm. are released from the brood pouch in April–May, There is evidence that the number of young (33–113) in the marsupium varies with the size of the female. From June to September individuals of the new stock grow rapidly to a length of 15 mm. As early as October, almost all the individuals have attained the average length of the parental stock, and are sexually mature, apparently due to the favourable temperature and food conditions of the downstream area. Some individuals of the breeding population may survive to the following year. Article in Journal/Newspaper Arctic subarctique* Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Zoology 58 5 693 700 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Ladurantaye, Réjean de Lacroix, Guy Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
An isolated and practically unknown population of Mysis litoralis was sampled biweekly with plankton nets in the Saguenay fjord, in May–October 1975 and April–May 1976. In April and May, this arctic mysid is almost absent upstream and occurs mainly in the central and lower parts of the fjord. From June to October, it is restricted in distribution to the lower part of the fjord. There, M. litoralis inhabits deep waters (100–200 m)of< 5 °C in May and June, but is found mainly in shallower (up to 5 m) and warmer waters from July to October, regardless of the age of individuals. The vertical salinity range in the fjord is 2–3‰. Reproductive activity occurs only once a year, in late October or early November, and young mysids, then averaging a length of 3.8 mm. are released from the brood pouch in April–May, There is evidence that the number of young (33–113) in the marsupium varies with the size of the female. From June to September individuals of the new stock grow rapidly to a length of 15 mm. As early as October, almost all the individuals have attained the average length of the parental stock, and are sexually mature, apparently due to the favourable temperature and food conditions of the downstream area. Some individuals of the breeding population may survive to the following year. |
format |
Article in Journal/Newspaper |
author |
Ladurantaye, Réjean de Lacroix, Guy |
author_facet |
Ladurantaye, Réjean de Lacroix, Guy |
author_sort |
Ladurantaye, Réjean de |
title |
Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
title_short |
Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
title_full |
Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
title_fullStr |
Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
title_full_unstemmed |
Répartition spatiale, cycle saisonnier et croissance de Mysis litoralis (Banner, 1948) (Mysidacea) dans un fjord subarctique |
title_sort |
répartition spatiale, cycle saisonnier et croissance de mysis litoralis (banner, 1948) (mysidacea) dans un fjord subarctique |
publisher |
Canadian Science Publishing |
publishDate |
1980 |
url |
http://dx.doi.org/10.1139/z80-100 http://www.nrcresearchpress.com/doi/pdf/10.1139/z80-100 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic subarctique* |
genre_facet |
Arctic subarctique* |
op_source |
Canadian Journal of Zoology volume 58, issue 5, page 693-700 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z80-100 |
container_title |
Canadian Journal of Zoology |
container_volume |
58 |
container_issue |
5 |
container_start_page |
693 |
op_container_end_page |
700 |
_version_ |
1785578088849997824 |