Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords
Siphonophores collected in Chilean Patagonian fjords, between the Gulf of Penas and the Trinidad Channel in 2008 were analysed. A total of 12 species were recorded, of which Muggiaea bargmannae, Lensia subtilis, Praya dubia and Sphaeronectes fragilis were identified for the first time in this sector...
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Consejo Superior de Investigaciones Científicas
2014
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Online Access: | https://doi.org/10.3989/scimar.03966.04B https://doaj.org/article/6df960cda30a4285a0f6eb378faf0d00 |
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ftdoajarticles:oai:doaj.org/article:6df960cda30a4285a0f6eb378faf0d00 2023-05-15T18:46:10+02:00 Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords Sergio Palma María Cristina Retamal Nelson Silva Claudio Silva 2014-09-01T00:00:00Z https://doi.org/10.3989/scimar.03966.04B https://doaj.org/article/6df960cda30a4285a0f6eb378faf0d00 EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1547 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.03966.04B https://doaj.org/article/6df960cda30a4285a0f6eb378faf0d00 Scientia Marina, Vol 78, Iss 3, Pp 339-351 (2014) siphonophores gelatinous zooplankton horizontal distribution vertical distribution chilean patagonian fjords Aquaculture. Fisheries. Angling SH1-691 article 2014 ftdoajarticles https://doi.org/10.3989/scimar.03966.04B 2022-12-31T06:23:27Z Siphonophores collected in Chilean Patagonian fjords, between the Gulf of Penas and the Trinidad Channel in 2008 were analysed. A total of 12 species were recorded, of which Muggiaea bargmannae, Lensia subtilis, Praya dubia and Sphaeronectes fragilis were identified for the first time in this sector of the Patagonian fjords. M. bargmannae represents a new record for the southeastern Pacific. The most abundant species were Muggiaea atlantica (78.6%), Lensia conoidea (8.7%) and Dimophyes arctica (8.5%). M. atlantica, the dominant species, showed high densities in both oceanic and interior waters. L. conoidea and D. arctica, on the other hand, were principally collected in interior waters. M. atlantica was collected in less saline (< 30), more oxygenated (6-7 mL L–1) shallow strata (0-50 m), while L. conoidea and D. arctica were collected below 50 m depth in more saline (30-33) and less oxygenated (4-6 mL L–1) waters. The eudoxids of these species followed the same horizontal and vertical distribution patterns as their polygastric stages. These results confirm the success of M. atlantica in the colonization of all the southern fjords and document an increase with respect to the results obtained for the same geographical area in the spring of 1996. They also allowed us to infer that salinity and dissolved oxygen vertical gradients play an important role in determining the depth distribution patterns of these species. Article in Journal/Newspaper Zooplankton Directory of Open Access Journals: DOAJ Articles Pacific Trinidad ENVELOPE(-60.734,-60.734,-63.816,-63.816) Scientia Marina 78 3 339 351 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
siphonophores gelatinous zooplankton horizontal distribution vertical distribution chilean patagonian fjords Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
siphonophores gelatinous zooplankton horizontal distribution vertical distribution chilean patagonian fjords Aquaculture. Fisheries. Angling SH1-691 Sergio Palma María Cristina Retamal Nelson Silva Claudio Silva Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
topic_facet |
siphonophores gelatinous zooplankton horizontal distribution vertical distribution chilean patagonian fjords Aquaculture. Fisheries. Angling SH1-691 |
description |
Siphonophores collected in Chilean Patagonian fjords, between the Gulf of Penas and the Trinidad Channel in 2008 were analysed. A total of 12 species were recorded, of which Muggiaea bargmannae, Lensia subtilis, Praya dubia and Sphaeronectes fragilis were identified for the first time in this sector of the Patagonian fjords. M. bargmannae represents a new record for the southeastern Pacific. The most abundant species were Muggiaea atlantica (78.6%), Lensia conoidea (8.7%) and Dimophyes arctica (8.5%). M. atlantica, the dominant species, showed high densities in both oceanic and interior waters. L. conoidea and D. arctica, on the other hand, were principally collected in interior waters. M. atlantica was collected in less saline (< 30), more oxygenated (6-7 mL L–1) shallow strata (0-50 m), while L. conoidea and D. arctica were collected below 50 m depth in more saline (30-33) and less oxygenated (4-6 mL L–1) waters. The eudoxids of these species followed the same horizontal and vertical distribution patterns as their polygastric stages. These results confirm the success of M. atlantica in the colonization of all the southern fjords and document an increase with respect to the results obtained for the same geographical area in the spring of 1996. They also allowed us to infer that salinity and dissolved oxygen vertical gradients play an important role in determining the depth distribution patterns of these species. |
format |
Article in Journal/Newspaper |
author |
Sergio Palma María Cristina Retamal Nelson Silva Claudio Silva |
author_facet |
Sergio Palma María Cristina Retamal Nelson Silva Claudio Silva |
author_sort |
Sergio Palma |
title |
Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
title_short |
Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
title_full |
Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
title_fullStr |
Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
title_full_unstemmed |
Horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in Chilean Patagonian fjords |
title_sort |
horizontal and vertical distributions of siphonophores in relation to oceanographic conditions in chilean patagonian fjords |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2014 |
url |
https://doi.org/10.3989/scimar.03966.04B https://doaj.org/article/6df960cda30a4285a0f6eb378faf0d00 |
long_lat |
ENVELOPE(-60.734,-60.734,-63.816,-63.816) |
geographic |
Pacific Trinidad |
geographic_facet |
Pacific Trinidad |
genre |
Zooplankton |
genre_facet |
Zooplankton |
op_source |
Scientia Marina, Vol 78, Iss 3, Pp 339-351 (2014) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1547 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.03966.04B https://doaj.org/article/6df960cda30a4285a0f6eb378faf0d00 |
op_doi |
https://doi.org/10.3989/scimar.03966.04B |
container_title |
Scientia Marina |
container_volume |
78 |
container_issue |
3 |
container_start_page |
339 |
op_container_end_page |
351 |
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1766237621875376128 |