Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea)
The Antarctic endemic fish genus Trematomus (Trematominae, Notothenioidei) includes 15 species very diverse in morphology, lifestyle and feeding ecology. Co-occurring on the continental shelf, they occupy different habitats and a wide range of ecological niches as the result of adaptive radiation du...
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Online Access: | https://hdl.handle.net/11577/3465163 https://doi.org/10.3390/jmse10121876 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/3465163 2024-02-27T08:35:09+00:00 Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) Carlig E. Di Blasi D. Pisano E. Vacchi M. Santovito G. Ghigliotti L. Carlig, E. Di Blasi, D. Pisano, E. Vacchi, M. Santovito, G. Ghigliotti, L. 2022 ELETTRONICO https://hdl.handle.net/11577/3465163 https://doi.org/10.3390/jmse10121876 eng eng MDPI info:eu-repo/semantics/altIdentifier/wos/WOS:000902564800001 volume:10 issue:12 firstpage:1876 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11577/3465163 doi:10.3390/jmse10121876 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85144930729 info:eu-repo/semantics/openAccess adaptation strategie ecomorphology feeding mode geometric morphometric Ross Sea Trematomus info:eu-repo/semantics/article 2022 ftunivpadovairis https://doi.org/10.3390/jmse10121876 2024-01-31T17:32:23Z The Antarctic endemic fish genus Trematomus (Trematominae, Notothenioidei) includes 15 species very diverse in morphology, lifestyle and feeding ecology. Co-occurring on the continental shelf, they occupy different habitats and a wide range of ecological niches as the result of adaptive radiation during their evolutionary history. Ecomorphological differentiation is a key feature of adaptive radiations, with a general trend for specialization following divergence. Here, we investigated the trophic adaptive morphology and ecology of six Trematomus species from Terra Nova Bay (Ross Sea) through feeding apparatus metrics and geometric morphometrics. The suction index (SI), the mechanical advantage in jaw closing (MA), the relative surface of the adductor mandibulae muscle and nine morphological traits related to feeding structures were analysed. Head shape clearly differentiates the benthic (T. bernacchii, T. hansoni and T. pennellii) from the pelagic (T. eulepidotus and T. borchgrevinki) species. The position of the eyes and the orientation of the mouth also contribute to specific morphological differences and specialization. Interestingly, T. newnesi stands at an intermediate position and the mouth is clearly oriented upwards compared to the other congeneric species. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Padua Research Archive (IRIS - Università degli Studi di Padova) Antarctic Ross Sea Terra Nova Bay The Antarctic Journal of Marine Science and Engineering 10 12 1876 |
institution |
Open Polar |
collection |
Padua Research Archive (IRIS - Università degli Studi di Padova) |
op_collection_id |
ftunivpadovairis |
language |
English |
topic |
adaptation strategie ecomorphology feeding mode geometric morphometric Ross Sea Trematomus |
spellingShingle |
adaptation strategie ecomorphology feeding mode geometric morphometric Ross Sea Trematomus Carlig E. Di Blasi D. Pisano E. Vacchi M. Santovito G. Ghigliotti L. Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
topic_facet |
adaptation strategie ecomorphology feeding mode geometric morphometric Ross Sea Trematomus |
description |
The Antarctic endemic fish genus Trematomus (Trematominae, Notothenioidei) includes 15 species very diverse in morphology, lifestyle and feeding ecology. Co-occurring on the continental shelf, they occupy different habitats and a wide range of ecological niches as the result of adaptive radiation during their evolutionary history. Ecomorphological differentiation is a key feature of adaptive radiations, with a general trend for specialization following divergence. Here, we investigated the trophic adaptive morphology and ecology of six Trematomus species from Terra Nova Bay (Ross Sea) through feeding apparatus metrics and geometric morphometrics. The suction index (SI), the mechanical advantage in jaw closing (MA), the relative surface of the adductor mandibulae muscle and nine morphological traits related to feeding structures were analysed. Head shape clearly differentiates the benthic (T. bernacchii, T. hansoni and T. pennellii) from the pelagic (T. eulepidotus and T. borchgrevinki) species. The position of the eyes and the orientation of the mouth also contribute to specific morphological differences and specialization. Interestingly, T. newnesi stands at an intermediate position and the mouth is clearly oriented upwards compared to the other congeneric species. |
author2 |
Carlig, E. Di Blasi, D. Pisano, E. Vacchi, M. Santovito, G. Ghigliotti, L. |
format |
Article in Journal/Newspaper |
author |
Carlig E. Di Blasi D. Pisano E. Vacchi M. Santovito G. Ghigliotti L. |
author_facet |
Carlig E. Di Blasi D. Pisano E. Vacchi M. Santovito G. Ghigliotti L. |
author_sort |
Carlig E. |
title |
Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
title_short |
Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
title_full |
Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
title_fullStr |
Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
title_full_unstemmed |
Ecomorphological Differentiation of Feeding Structures within the Antarctic Fish Species Flock Trematominae (Notothenioidei) from Terra Nova Bay (Ross Sea) |
title_sort |
ecomorphological differentiation of feeding structures within the antarctic fish species flock trematominae (notothenioidei) from terra nova bay (ross sea) |
publisher |
MDPI |
publishDate |
2022 |
url |
https://hdl.handle.net/11577/3465163 https://doi.org/10.3390/jmse10121876 |
geographic |
Antarctic Ross Sea Terra Nova Bay The Antarctic |
geographic_facet |
Antarctic Ross Sea Terra Nova Bay The Antarctic |
genre |
Antarc* Antarctic Ross Sea |
genre_facet |
Antarc* Antarctic Ross Sea |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000902564800001 volume:10 issue:12 firstpage:1876 journal:JOURNAL OF MARINE SCIENCE AND ENGINEERING https://hdl.handle.net/11577/3465163 doi:10.3390/jmse10121876 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85144930729 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/jmse10121876 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
12 |
container_start_page |
1876 |
_version_ |
1792041615170207744 |