Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information
The composition of endobionts in the sponge Mycale (Aegogropila) magellanica at the shelf-break, near 100 m depth, in the Argentine Sea was studied. We also provide new information on the distribution of M. (A.) magellanica, extending its northern limit to 38º36.02’S and 55º44.68’W, 91 m in the SW A...
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Consejo Superior de Investigaciones Científicas
2012
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Online Access: | https://doi.org/10.3989/scimar.03490.21A https://doaj.org/article/f07420c271674203b428efc8195a0180 |
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ftdoajarticles:oai:doaj.org/article:f07420c271674203b428efc8195a0180 2023-05-15T13:55:34+02:00 Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information Laura Schejter Ignacio L. Chiesa Brenda L. Doti Claudia Bremec 2012-12-01T00:00:00Z https://doi.org/10.3989/scimar.03490.21A https://doaj.org/article/f07420c271674203b428efc8195a0180 EN eng Consejo Superior de Investigaciones Científicas http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1392 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.03490.21A https://doaj.org/article/f07420c271674203b428efc8195a0180 Scientia Marina, Vol 76, Iss 4, Pp 753-761 (2012) mycale (aegogropila) magellanica sponge-invertebrate associations benthic richness argentine sea Aquaculture. Fisheries. Angling SH1-691 article 2012 ftdoajarticles https://doi.org/10.3989/scimar.03490.21A 2022-12-31T09:34:29Z The composition of endobionts in the sponge Mycale (Aegogropila) magellanica at the shelf-break, near 100 m depth, in the Argentine Sea was studied. We also provide new information on the distribution of M. (A.) magellanica, extending its northern limit to 38º36.02’S and 55º44.68’W, 91 m in the SW Atlantic Ocean. The main Patagonian scallop fishing grounds are located in the shelf-break frontal area of the Argentine Sea. In this area, M. (A.) magellanica plays an important role in providing habitat for at least 23 taxa of small invertebrates, mostly crustaceans (66% to 96% of the total number of individuals). On average, this sponge hosted 348 individuals per litre; Aristias cf. antarcticus (Amphipoda) was the most frequent and abundant species. Other organisms commonly found were the isopod Caecognathia sp., the amphipod Leucothoe cf. spinicarpa, the bivalve Hiatella meridionalis and the ophiuroid Ophiactis asperula. As previously demonstrated for other sponges, our study suggests that M. (A.) magellanica enhances benthic biodiversity, as it shelters a variety of invertebrate species. In areas of soft and flat substrate, erect and sessile epifauna usually acts as an ecosystem engineer, structuring the architecture of the habitat by increasing the sea-bottom complexity. Mass removal of this fauna due to intense trawling activities on Patagonian scallop beds could have devastating effects on local biodiversity. Article in Journal/Newspaper Antarc* antarcticus Directory of Open Access Journals: DOAJ Articles Argentine Scientia Marina 0 0 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
mycale (aegogropila) magellanica sponge-invertebrate associations benthic richness argentine sea Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
mycale (aegogropila) magellanica sponge-invertebrate associations benthic richness argentine sea Aquaculture. Fisheries. Angling SH1-691 Laura Schejter Ignacio L. Chiesa Brenda L. Doti Claudia Bremec Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
topic_facet |
mycale (aegogropila) magellanica sponge-invertebrate associations benthic richness argentine sea Aquaculture. Fisheries. Angling SH1-691 |
description |
The composition of endobionts in the sponge Mycale (Aegogropila) magellanica at the shelf-break, near 100 m depth, in the Argentine Sea was studied. We also provide new information on the distribution of M. (A.) magellanica, extending its northern limit to 38º36.02’S and 55º44.68’W, 91 m in the SW Atlantic Ocean. The main Patagonian scallop fishing grounds are located in the shelf-break frontal area of the Argentine Sea. In this area, M. (A.) magellanica plays an important role in providing habitat for at least 23 taxa of small invertebrates, mostly crustaceans (66% to 96% of the total number of individuals). On average, this sponge hosted 348 individuals per litre; Aristias cf. antarcticus (Amphipoda) was the most frequent and abundant species. Other organisms commonly found were the isopod Caecognathia sp., the amphipod Leucothoe cf. spinicarpa, the bivalve Hiatella meridionalis and the ophiuroid Ophiactis asperula. As previously demonstrated for other sponges, our study suggests that M. (A.) magellanica enhances benthic biodiversity, as it shelters a variety of invertebrate species. In areas of soft and flat substrate, erect and sessile epifauna usually acts as an ecosystem engineer, structuring the architecture of the habitat by increasing the sea-bottom complexity. Mass removal of this fauna due to intense trawling activities on Patagonian scallop beds could have devastating effects on local biodiversity. |
format |
Article in Journal/Newspaper |
author |
Laura Schejter Ignacio L. Chiesa Brenda L. Doti Claudia Bremec |
author_facet |
Laura Schejter Ignacio L. Chiesa Brenda L. Doti Claudia Bremec |
author_sort |
Laura Schejter |
title |
Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
title_short |
Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
title_full |
Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
title_fullStr |
Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
title_full_unstemmed |
Mycale (Aegogropila) magellanica (Porifera: Demospongiae) in the southwestern Atlantic Ocean: endobiotic fauna and new distributional information |
title_sort |
mycale (aegogropila) magellanica (porifera: demospongiae) in the southwestern atlantic ocean: endobiotic fauna and new distributional information |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2012 |
url |
https://doi.org/10.3989/scimar.03490.21A https://doaj.org/article/f07420c271674203b428efc8195a0180 |
geographic |
Argentine |
geographic_facet |
Argentine |
genre |
Antarc* antarcticus |
genre_facet |
Antarc* antarcticus |
op_source |
Scientia Marina, Vol 76, Iss 4, Pp 753-761 (2012) |
op_relation |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1392 https://doaj.org/toc/0214-8358 https://doaj.org/toc/1886-8134 0214-8358 1886-8134 doi:10.3989/scimar.03490.21A https://doaj.org/article/f07420c271674203b428efc8195a0180 |
op_doi |
https://doi.org/10.3989/scimar.03490.21A |
container_title |
Scientia Marina |
container_volume |
0 |
container_issue |
0 |
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1766262271641649152 |