Krill spatial distribution in the Spanish Mediterranean Sea in summer time
We documented krill distribution in the Spanish Mediterranean Sea for the first time using acoustic methods, highlighting the method’s suitability to study marine communities restricted to specific areas with patchy aggregation behavior. The 2009–2017 acoustic time series analysis revealed that kril...
Published in: | Journal of Plankton Research |
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2019
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Online Access: | http://hdl.handle.net/10508/15077 https://doi.org/10.1093/plankt/fbz030 |
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ftieo:oai:repositorio.ieo.es:10508/15077 2023-06-11T04:13:56+02:00 Krill spatial distribution in the Spanish Mediterranean Sea in summer time Ventero, A. (Ana) Iglesias, M. (Magdalena) Córdoba-Sellés, M.P. (María del Pilar) 2019 http://hdl.handle.net/10508/15077 https://doi.org/10.1093/plankt/fbz030 eng eng Oxford University Press (OUP) Centro Oceanográfico de Baleares https://academic.oup.com/plankt/article/41/4/491/5538346 http://hdl.handle.net/10508/15077 doi:10.1093/plankt/fbz030 closed access krill frequency response biological parameters Western Mediterranean Sea spatial distribution research article 2019 ftieo https://doi.org/10.1093/plankt/fbz030 2023-05-02T23:49:31Z We documented krill distribution in the Spanish Mediterranean Sea for the first time using acoustic methods, highlighting the method’s suitability to study marine communities restricted to specific areas with patchy aggregation behavior. The 2009–2017 acoustic time series analysis revealed that krill distribution, mainly located on the continental shelf edge, was driven by the presence of fronts and submarine canyons. On the other hand, areas of persistent krill distribution included from Cape La Nao to the eastern part of Almeria Bay, although an interannual northwards increase of krill presence had been detected in 2015–2017 likely related to the position of the Balearic front. We provide information on the aggregation characteristics and biological parameters of three krill species, Nyctiphanes couchii, Nematoscelis megalops and Meganyctiphanes norvegica. N. couchii and N. megalops formed patchy pelagic aggregations in the neritic and oceanic zone, respectively, and they were the most common species in the net tows. By contrast, M. norvegica formed a large demersal aggregation on the continental shelf edge and was only found in 2017; nevertheless, its 861-kg catch represented a unique milestone in the Mediterranean. Finally, krill species shared distribution area with Maurolicus muelleri; thus, coexistence between them are also described. Article in Journal/Newspaper Meganyctiphanes norvegica Instituto Español de Oceanografía: e-IEO Journal of Plankton Research 41 4 491 505 |
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Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
krill frequency response biological parameters Western Mediterranean Sea spatial distribution |
spellingShingle |
krill frequency response biological parameters Western Mediterranean Sea spatial distribution Ventero, A. (Ana) Iglesias, M. (Magdalena) Córdoba-Sellés, M.P. (María del Pilar) Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
topic_facet |
krill frequency response biological parameters Western Mediterranean Sea spatial distribution |
description |
We documented krill distribution in the Spanish Mediterranean Sea for the first time using acoustic methods, highlighting the method’s suitability to study marine communities restricted to specific areas with patchy aggregation behavior. The 2009–2017 acoustic time series analysis revealed that krill distribution, mainly located on the continental shelf edge, was driven by the presence of fronts and submarine canyons. On the other hand, areas of persistent krill distribution included from Cape La Nao to the eastern part of Almeria Bay, although an interannual northwards increase of krill presence had been detected in 2015–2017 likely related to the position of the Balearic front. We provide information on the aggregation characteristics and biological parameters of three krill species, Nyctiphanes couchii, Nematoscelis megalops and Meganyctiphanes norvegica. N. couchii and N. megalops formed patchy pelagic aggregations in the neritic and oceanic zone, respectively, and they were the most common species in the net tows. By contrast, M. norvegica formed a large demersal aggregation on the continental shelf edge and was only found in 2017; nevertheless, its 861-kg catch represented a unique milestone in the Mediterranean. Finally, krill species shared distribution area with Maurolicus muelleri; thus, coexistence between them are also described. |
format |
Article in Journal/Newspaper |
author |
Ventero, A. (Ana) Iglesias, M. (Magdalena) Córdoba-Sellés, M.P. (María del Pilar) |
author_facet |
Ventero, A. (Ana) Iglesias, M. (Magdalena) Córdoba-Sellés, M.P. (María del Pilar) |
author_sort |
Ventero, A. (Ana) |
title |
Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
title_short |
Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
title_full |
Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
title_fullStr |
Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
title_full_unstemmed |
Krill spatial distribution in the Spanish Mediterranean Sea in summer time |
title_sort |
krill spatial distribution in the spanish mediterranean sea in summer time |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://hdl.handle.net/10508/15077 https://doi.org/10.1093/plankt/fbz030 |
genre |
Meganyctiphanes norvegica |
genre_facet |
Meganyctiphanes norvegica |
op_relation |
https://academic.oup.com/plankt/article/41/4/491/5538346 http://hdl.handle.net/10508/15077 doi:10.1093/plankt/fbz030 |
op_rights |
closed access |
op_doi |
https://doi.org/10.1093/plankt/fbz030 |
container_title |
Journal of Plankton Research |
container_volume |
41 |
container_issue |
4 |
container_start_page |
491 |
op_container_end_page |
505 |
_version_ |
1768391392282804224 |