Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean)
Our knowledge on distribution, habitats and behavior of Southern Ocean fishes living at water depths beyond scuba-diving limits is still sparse, as it is difficult to obtain quantitative data on these aspects of their biology. Here, we report the results of an analysis of seabed images to investigat...
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Online Access: | https://epic.awi.de/id/eprint/49435/ https://epic.awi.de/id/eprint/49435/1/La_Mesa_et_al-2019.pdf https://doi.org/10.1007/s00300-019-02495-3 https://hdl.handle.net/10013/epic.d0e2cb7d-7bfe-481b-b9d0-0d2e7fbba228 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:49435 2023-05-15T13:45:21+02:00 Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) La Mesa, Mario Piepenburg, Dieter Pineda-Metz, Santiago E. A. Riginella, Emilio Eastman, Joseph T. 2019 application/pdf https://epic.awi.de/id/eprint/49435/ https://epic.awi.de/id/eprint/49435/1/La_Mesa_et_al-2019.pdf https://doi.org/10.1007/s00300-019-02495-3 https://hdl.handle.net/10013/epic.d0e2cb7d-7bfe-481b-b9d0-0d2e7fbba228 https://hdl.handle.net/ unknown Springer https://epic.awi.de/id/eprint/49435/1/La_Mesa_et_al-2019.pdf https://hdl.handle.net/ La Mesa, M. , Piepenburg, D. , Pineda-Metz, S. E. A. , Riginella, E. and Eastman, J. T. (2019) Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) , Polar Biology . doi:10.1007/s00300-019-02495-3 <https://doi.org/10.1007/s00300-019-02495-3> , hdl:10013/epic.d0e2cb7d-7bfe-481b-b9d0-0d2e7fbba228 EPIC3Polar Biology, Springer, ISSN: 0722-4060 Article isiRev 2019 ftawi https://doi.org/10.1007/s00300-019-02495-3 2021-12-24T15:44:39Z Our knowledge on distribution, habitats and behavior of Southern Ocean fishes living at water depths beyond scuba-diving limits is still sparse, as it is difficult to obtain quantitative data on these aspects of their biology. Here, we report the results of an analysis of seabed images to investigate species composition, behavior, spatial distribution and preferred habitats of demersal fish assemblages in the southern Weddell Sea. Our study was based on a total of 2736 high-resolution images, covering a total seabed area of 11,317 m2, which were taken at 13 stations at water depths between 200 and 750 m. Fish were found in 380 images. A total of 379 notothenioid specimens were recorded, representing four families (Nototheniidae, Artedidraconidae, Bathydraconidae, Channichthyidae), 17 genera and 25 species. Nototheniidae was the most speciose fam- ily, including benthic species (Trematomus spp.) and the pelagic species Pleuragramma antarctica, which was occasionally recorded in dense shoals. Bathydraconids ranked second with six species, followed by artedidraconids and channichthyids, both with five species. Most abundant species were Trematomus scotti and T. lepidorhinus among nototheniids, and Dol- loidraco longedorsalis and Pagetopsis maculatus among artedidraconids and channichthyids, respectively. Both T. lepi- dorhinus and P. maculatus preferred seabed habitats characterized by biogenous debris and rich epibenthic fauna, whereas T. scotti and D. longedorsalis were frequently seen resting on fine sediments and scattered gravel. Several fish species were recorded to make use of the three-dimensional structure formed by epibenthic foundation species, like sponges, for perching or hiding inside. Nesting behavior was observed, frequently in association with dropstones, in species from various families, including Channichthyidae (Chaenodraco wilsoni and Pagetopsis macropterus) and Bathydraconidae (Cygnodraco mawsoni). Article in Journal/Newspaper Antarc* Antarctica Polar Biology Southern Ocean Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Southern Ocean Weddell Weddell Sea Polar Biology 42 5 1025 1040 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Our knowledge on distribution, habitats and behavior of Southern Ocean fishes living at water depths beyond scuba-diving limits is still sparse, as it is difficult to obtain quantitative data on these aspects of their biology. Here, we report the results of an analysis of seabed images to investigate species composition, behavior, spatial distribution and preferred habitats of demersal fish assemblages in the southern Weddell Sea. Our study was based on a total of 2736 high-resolution images, covering a total seabed area of 11,317 m2, which were taken at 13 stations at water depths between 200 and 750 m. Fish were found in 380 images. A total of 379 notothenioid specimens were recorded, representing four families (Nototheniidae, Artedidraconidae, Bathydraconidae, Channichthyidae), 17 genera and 25 species. Nototheniidae was the most speciose fam- ily, including benthic species (Trematomus spp.) and the pelagic species Pleuragramma antarctica, which was occasionally recorded in dense shoals. Bathydraconids ranked second with six species, followed by artedidraconids and channichthyids, both with five species. Most abundant species were Trematomus scotti and T. lepidorhinus among nototheniids, and Dol- loidraco longedorsalis and Pagetopsis maculatus among artedidraconids and channichthyids, respectively. Both T. lepi- dorhinus and P. maculatus preferred seabed habitats characterized by biogenous debris and rich epibenthic fauna, whereas T. scotti and D. longedorsalis were frequently seen resting on fine sediments and scattered gravel. Several fish species were recorded to make use of the three-dimensional structure formed by epibenthic foundation species, like sponges, for perching or hiding inside. Nesting behavior was observed, frequently in association with dropstones, in species from various families, including Channichthyidae (Chaenodraco wilsoni and Pagetopsis macropterus) and Bathydraconidae (Cygnodraco mawsoni). |
format |
Article in Journal/Newspaper |
author |
La Mesa, Mario Piepenburg, Dieter Pineda-Metz, Santiago E. A. Riginella, Emilio Eastman, Joseph T. |
spellingShingle |
La Mesa, Mario Piepenburg, Dieter Pineda-Metz, Santiago E. A. Riginella, Emilio Eastman, Joseph T. Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
author_facet |
La Mesa, Mario Piepenburg, Dieter Pineda-Metz, Santiago E. A. Riginella, Emilio Eastman, Joseph T. |
author_sort |
La Mesa, Mario |
title |
Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
title_short |
Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
title_full |
Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
title_fullStr |
Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
title_full_unstemmed |
Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) |
title_sort |
spatial distribution and habitat preferences of demersal fish assemblages in the southeastern weddell sea (southern ocean) |
publisher |
Springer |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/49435/ https://epic.awi.de/id/eprint/49435/1/La_Mesa_et_al-2019.pdf https://doi.org/10.1007/s00300-019-02495-3 https://hdl.handle.net/10013/epic.d0e2cb7d-7bfe-481b-b9d0-0d2e7fbba228 https://hdl.handle.net/ |
geographic |
Southern Ocean Weddell Weddell Sea |
geographic_facet |
Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctica Polar Biology Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctica Polar Biology Southern Ocean Weddell Sea |
op_source |
EPIC3Polar Biology, Springer, ISSN: 0722-4060 |
op_relation |
https://epic.awi.de/id/eprint/49435/1/La_Mesa_et_al-2019.pdf https://hdl.handle.net/ La Mesa, M. , Piepenburg, D. , Pineda-Metz, S. E. A. , Riginella, E. and Eastman, J. T. (2019) Spatial distribution and habitat preferences of demersal fish assemblages in the southeastern Weddell Sea (Southern Ocean) , Polar Biology . doi:10.1007/s00300-019-02495-3 <https://doi.org/10.1007/s00300-019-02495-3> , hdl:10013/epic.d0e2cb7d-7bfe-481b-b9d0-0d2e7fbba228 |
op_doi |
https://doi.org/10.1007/s00300-019-02495-3 |
container_title |
Polar Biology |
container_volume |
42 |
container_issue |
5 |
container_start_page |
1025 |
op_container_end_page |
1040 |
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1766221550629945344 |