Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae)
Laternula elliptica (P. P. King, 1832) is the sole representative of the anomalodesmatan family Laternulidae and the largest bivalve in the Antarctic and Subantarctic. A keystone species of the regional benthic communities, it has reached model status, having been studied in hundreds of scientific w...
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crpeerj:10.7717/peerj.14380 2024-06-23T07:47:02+00:00 Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) Passos, Flávio Dias Sartori, André Fernando Domaneschi, Osmar Bieler, Rüdiger Brazilian Antarctic Programme National Council of Scientific and Technological Development Brazilian Navy and Brazilian Air Force São Paulo Research Foundation Pós-Graduação, Área Zoologia, IBUSP FAPESP U.S. National Science Foundation (NSF) Award Rüdiger Bieler for the Bivalve-Tree-of-Life (BivAToL) Project 2022 http://dx.doi.org/10.7717/peerj.14380 https://peerj.com/articles/14380.pdf https://peerj.com/articles/14380.xml https://peerj.com/articles/14380.html en eng PeerJ https://creativecommons.org/licenses/by/4.0/ PeerJ volume 10, page e14380 ISSN 2167-8359 journal-article 2022 crpeerj https://doi.org/10.7717/peerj.14380 2024-06-11T04:28:35Z Laternula elliptica (P. P. King, 1832) is the sole representative of the anomalodesmatan family Laternulidae and the largest bivalve in the Antarctic and Subantarctic. A keystone species of the regional benthic communities, it has reached model status, having been studied in hundreds of scientific works across many biological disciplines. In contrast, its anatomy has remained poorly known, with prior published data limited to partial descriptions based on chemically preserved specimens. Based on observations of aquarium-maintained living animals at the Brazilian Comandante Ferraz Antarctic Station, gross-morphological dissections, and histological sectioning, the comparative anatomy, functional morphology, and aspects of behavior of L. elliptica are described and discussed. Special focus is placed on the pallial organs (including elucidation of cleansing and feeding sorting mechanisms in the mantle cavity) and the musculature. Among the noteworthy findings are the presence of well-developed siphons furnished with sensory tentacles at its tips, some of which bearing eyes; large, folded gills and labial palps capable of sorting the material entering the mantle cavity; an inter-chamber communication in the posterior region of the mantle cavity; an ample ventral mantle fusion with an anterior pedal gape; the absence of a 4 th pallial opening; and the absence of a ligamental lithodesma in adult specimens. This study reevaluates the available anatomical data in the literature, both supplementing and correcting previously published accounts. Article in Journal/Newspaper Antarc* Antarctic PeerJ Publishing Antarctic Ferraz ENVELOPE(-64.117,-64.117,-65.117,-65.117) The Antarctic PeerJ 10 e14380 |
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PeerJ Publishing |
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crpeerj |
language |
English |
description |
Laternula elliptica (P. P. King, 1832) is the sole representative of the anomalodesmatan family Laternulidae and the largest bivalve in the Antarctic and Subantarctic. A keystone species of the regional benthic communities, it has reached model status, having been studied in hundreds of scientific works across many biological disciplines. In contrast, its anatomy has remained poorly known, with prior published data limited to partial descriptions based on chemically preserved specimens. Based on observations of aquarium-maintained living animals at the Brazilian Comandante Ferraz Antarctic Station, gross-morphological dissections, and histological sectioning, the comparative anatomy, functional morphology, and aspects of behavior of L. elliptica are described and discussed. Special focus is placed on the pallial organs (including elucidation of cleansing and feeding sorting mechanisms in the mantle cavity) and the musculature. Among the noteworthy findings are the presence of well-developed siphons furnished with sensory tentacles at its tips, some of which bearing eyes; large, folded gills and labial palps capable of sorting the material entering the mantle cavity; an inter-chamber communication in the posterior region of the mantle cavity; an ample ventral mantle fusion with an anterior pedal gape; the absence of a 4 th pallial opening; and the absence of a ligamental lithodesma in adult specimens. This study reevaluates the available anatomical data in the literature, both supplementing and correcting previously published accounts. |
author2 |
Brazilian Antarctic Programme National Council of Scientific and Technological Development Brazilian Navy and Brazilian Air Force São Paulo Research Foundation Pós-Graduação, Área Zoologia, IBUSP FAPESP U.S. National Science Foundation (NSF) Award Rüdiger Bieler for the Bivalve-Tree-of-Life (BivAToL) Project |
format |
Article in Journal/Newspaper |
author |
Passos, Flávio Dias Sartori, André Fernando Domaneschi, Osmar Bieler, Rüdiger |
spellingShingle |
Passos, Flávio Dias Sartori, André Fernando Domaneschi, Osmar Bieler, Rüdiger Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
author_facet |
Passos, Flávio Dias Sartori, André Fernando Domaneschi, Osmar Bieler, Rüdiger |
author_sort |
Passos, Flávio Dias |
title |
Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
title_short |
Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
title_full |
Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
title_fullStr |
Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
title_full_unstemmed |
Anatomy and behavior of Laternula elliptica, a keystone species of the Antarctic benthos (Bivalvia: Anomalodesmata: Laternulidae) |
title_sort |
anatomy and behavior of laternula elliptica, a keystone species of the antarctic benthos (bivalvia: anomalodesmata: laternulidae) |
publisher |
PeerJ |
publishDate |
2022 |
url |
http://dx.doi.org/10.7717/peerj.14380 https://peerj.com/articles/14380.pdf https://peerj.com/articles/14380.xml https://peerj.com/articles/14380.html |
long_lat |
ENVELOPE(-64.117,-64.117,-65.117,-65.117) |
geographic |
Antarctic Ferraz The Antarctic |
geographic_facet |
Antarctic Ferraz The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
PeerJ volume 10, page e14380 ISSN 2167-8359 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.14380 |
container_title |
PeerJ |
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10 |
container_start_page |
e14380 |
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1802650248391163904 |