Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence
The large-scale spatial distribution of northern shrimp (Pandalus borealis) larvae was analyzed in the Gulf of St. Lawrence during the spring of 1986 and 1987. Although sites of emergence are related to the principal aggregation areas of adult shrimp, it appears that the currently fished aggregation...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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1990
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Online Access: | http://dx.doi.org/10.1139/f90-231 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-231 |
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crcansciencepubl:10.1139/f90-231 2023-12-17T10:47:30+01:00 Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence Ouellet, Patrick Lefaivre, Denis Koutitonsky, Vladimir 1990 http://dx.doi.org/10.1139/f90-231 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-231 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 11, page 2068-2078 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1990 crcansciencepubl https://doi.org/10.1139/f90-231 2023-11-19T13:39:01Z The large-scale spatial distribution of northern shrimp (Pandalus borealis) larvae was analyzed in the Gulf of St. Lawrence during the spring of 1986 and 1987. Although sites of emergence are related to the principal aggregation areas of adult shrimp, it appears that the currently fished aggregations may not represent isolated populations. The uniformity of developmental stages and the wide-spread distribution of the first larval stage were consistent with the hypothesis of synchronous larval emergence among the northern Gulf shrimp The structured pattern of larval spatial distribution was not correlated with the hydrographic structure within the different sectors of the Gulf (Mantel test; P > 0.05). Spatial correlograms showed that the highly structured spatial distribution pattern of stage I larvae evolved into a spatially random pattern by the time stage III larvae had developed. We suggest that biological or ecological dynamic processes such as larval mortality and development rates are more important than the hydrodynamics of the sectors in determining the structure of larval shrimp distribution Consequently, on a seasonal basis, the distribution of larval shrimp groups cannot be inferred from a study of the hydrographic pattern within the sectors at the scale of our analysis. Article in Journal/Newspaper northern shrimp Pandalus borealis Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 47 11 2068 2078 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Ouellet, Patrick Lefaivre, Denis Koutitonsky, Vladimir Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The large-scale spatial distribution of northern shrimp (Pandalus borealis) larvae was analyzed in the Gulf of St. Lawrence during the spring of 1986 and 1987. Although sites of emergence are related to the principal aggregation areas of adult shrimp, it appears that the currently fished aggregations may not represent isolated populations. The uniformity of developmental stages and the wide-spread distribution of the first larval stage were consistent with the hypothesis of synchronous larval emergence among the northern Gulf shrimp The structured pattern of larval spatial distribution was not correlated with the hydrographic structure within the different sectors of the Gulf (Mantel test; P > 0.05). Spatial correlograms showed that the highly structured spatial distribution pattern of stage I larvae evolved into a spatially random pattern by the time stage III larvae had developed. We suggest that biological or ecological dynamic processes such as larval mortality and development rates are more important than the hydrodynamics of the sectors in determining the structure of larval shrimp distribution Consequently, on a seasonal basis, the distribution of larval shrimp groups cannot be inferred from a study of the hydrographic pattern within the sectors at the scale of our analysis. |
format |
Article in Journal/Newspaper |
author |
Ouellet, Patrick Lefaivre, Denis Koutitonsky, Vladimir |
author_facet |
Ouellet, Patrick Lefaivre, Denis Koutitonsky, Vladimir |
author_sort |
Ouellet, Patrick |
title |
Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
title_short |
Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
title_full |
Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
title_fullStr |
Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
title_full_unstemmed |
Distribution of Shrimp ( Pandalus borealis ) Larvae and Hydrographic Pattern in the Northern Gulf of St Lawrence |
title_sort |
distribution of shrimp ( pandalus borealis ) larvae and hydrographic pattern in the northern gulf of st lawrence |
publisher |
Canadian Science Publishing |
publishDate |
1990 |
url |
http://dx.doi.org/10.1139/f90-231 http://www.nrcresearchpress.com/doi/pdf/10.1139/f90-231 |
genre |
northern shrimp Pandalus borealis |
genre_facet |
northern shrimp Pandalus borealis |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 47, issue 11, page 2068-2078 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f90-231 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
47 |
container_issue |
11 |
container_start_page |
2068 |
op_container_end_page |
2078 |
_version_ |
1785571387284389888 |