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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ftunivcam:oai:www.repository.cam.ac.uk:1810/345624 2024-02-04T09:55:17+01:00 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 2023-01-23T02:05:34Z application/pdf https://www.repository.cam.ac.uk/handle/1810/345624 https://doi.org/10.17863/CAM.93045 eng eng PeerJ http://dx.doi.org/10.7717/peerj.14380 https://www.repository.cam.ac.uk/handle/1810/345624 doi:10.17863/CAM.93045 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ essn: 2167-8359 nlmid: 101603425 Anatomy Antarctica Bivalve Field observation Histology Mollusca Morphology Musculature Pallial organs Siphons Animals Antarctic Regions Bivalvia Cell Movement Communication Brazil Article 2023 ftunivcam https://doi.org/10.17863/CAM.93045 2024-01-11T23:31:57Z 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 4th 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 Antarctica Apollo - University of Cambridge Repository Antarctic The Antarctic Ferraz ENVELOPE(-64.117,-64.117,-65.117,-65.117) |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
Anatomy Antarctica Bivalve Field observation Histology Mollusca Morphology Musculature Pallial organs Siphons Animals Antarctic Regions Bivalvia Cell Movement Communication Brazil |
spellingShingle |
Anatomy Antarctica Bivalve Field observation Histology Mollusca Morphology Musculature Pallial organs Siphons Animals Antarctic Regions Bivalvia Cell Movement Communication Brazil 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). |
topic_facet |
Anatomy Antarctica Bivalve Field observation Histology Mollusca Morphology Musculature Pallial organs Siphons Animals Antarctic Regions Bivalvia Cell Movement Communication Brazil |
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 4th 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. |
format |
Article in Journal/Newspaper |
author |
Passos, Flávio Dias Sartori, André Fernando Domaneschi, Osmar Bieler, Rüdiger |
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 |
2023 |
url |
https://www.repository.cam.ac.uk/handle/1810/345624 https://doi.org/10.17863/CAM.93045 |
long_lat |
ENVELOPE(-64.117,-64.117,-65.117,-65.117) |
geographic |
Antarctic The Antarctic Ferraz |
geographic_facet |
Antarctic The Antarctic Ferraz |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
essn: 2167-8359 nlmid: 101603425 |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/345624 doi:10.17863/CAM.93045 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.17863/CAM.93045 |
_version_ |
1789959214226997248 |