Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters
Abstract The Bransfield Strait and adjacent waters represent one of the most important areas of larval retention off the Antarctic Peninsula. The species composition of larval fish assemblages has been described in detail in previous surveys carried out in the area, but the role of environmental par...
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crwiley:10.1111/fog.12178 2024-09-15T17:45:36+00:00 Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters La Mesa, Mario La Mesa, Gabriele Catalano, Barbara Jones, Christopher D. PNRA 2016 http://dx.doi.org/10.1111/fog.12178 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffog.12178 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12178 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 25, issue 6, page 624-636 ISSN 1054-6006 1365-2419 journal-article 2016 crwiley https://doi.org/10.1111/fog.12178 2024-08-13T04:14:12Z Abstract The Bransfield Strait and adjacent waters represent one of the most important areas of larval retention off the Antarctic Peninsula. The species composition of larval fish assemblages has been described in detail in previous surveys carried out in the area, but the role of environmental parameters influencing the spatial distribution of early life stages was poorly known. By applying generalized additive models and multivariate analyses, we evaluated the role of environmental variables in shaping the small‐scale distribution of larval fish and investigated the spatial structure of the larval assemblage. It consisted of a few dominant notothenioid species, such as Champsocephalus gunnari , Lepidonotothen squamifrons , Lepidonotothen larseni , Pleuragramma antarctica and Trematomus scotti , and several other rarely caught species. Sea water temperature, salinity and sampling depth were the most important factors determining the spatial distribution of fish with different relative contributions, together explaining more than 80% of total deviance observed. Species richness was mostly affected by salinity, probably due to the narrow range of salinity preference by the species. Cluster analysis of abundance and presence data identified six and five distinct groups, respectively, each of them with substantial contributions of single or rarely two species. Differences in reproductive strategies of adult populations and spatial distribution of early life stages driven by different larval behaviour in response to environmental factors contribute to maintaining a well‐structured larval fish assemblage, ensuring spatial and food niche partitioning. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait Wiley Online Library Fisheries Oceanography 25 6 624 636 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract The Bransfield Strait and adjacent waters represent one of the most important areas of larval retention off the Antarctic Peninsula. The species composition of larval fish assemblages has been described in detail in previous surveys carried out in the area, but the role of environmental parameters influencing the spatial distribution of early life stages was poorly known. By applying generalized additive models and multivariate analyses, we evaluated the role of environmental variables in shaping the small‐scale distribution of larval fish and investigated the spatial structure of the larval assemblage. It consisted of a few dominant notothenioid species, such as Champsocephalus gunnari , Lepidonotothen squamifrons , Lepidonotothen larseni , Pleuragramma antarctica and Trematomus scotti , and several other rarely caught species. Sea water temperature, salinity and sampling depth were the most important factors determining the spatial distribution of fish with different relative contributions, together explaining more than 80% of total deviance observed. Species richness was mostly affected by salinity, probably due to the narrow range of salinity preference by the species. Cluster analysis of abundance and presence data identified six and five distinct groups, respectively, each of them with substantial contributions of single or rarely two species. Differences in reproductive strategies of adult populations and spatial distribution of early life stages driven by different larval behaviour in response to environmental factors contribute to maintaining a well‐structured larval fish assemblage, ensuring spatial and food niche partitioning. |
author2 |
PNRA |
format |
Article in Journal/Newspaper |
author |
La Mesa, Mario La Mesa, Gabriele Catalano, Barbara Jones, Christopher D. |
spellingShingle |
La Mesa, Mario La Mesa, Gabriele Catalano, Barbara Jones, Christopher D. Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
author_facet |
La Mesa, Mario La Mesa, Gabriele Catalano, Barbara Jones, Christopher D. |
author_sort |
La Mesa, Mario |
title |
Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
title_short |
Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
title_full |
Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
title_fullStr |
Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
title_full_unstemmed |
Spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the Bransfield Strait and adjacent waters |
title_sort |
spatial distribution pattern and physical – biological interactions in the larval notothenioid fish assemblages from the bransfield strait and adjacent waters |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/fog.12178 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffog.12178 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12178 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait |
op_source |
Fisheries Oceanography volume 25, issue 6, page 624-636 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fog.12178 |
container_title |
Fisheries Oceanography |
container_volume |
25 |
container_issue |
6 |
container_start_page |
624 |
op_container_end_page |
636 |
_version_ |
1810493500411609088 |