Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer
The Western Antarctic Peninsula (WAP) is a hotspot for environmental change and has a strong environmental gradient from North to South. Here, for the first time we used adult individuals of the bivalve Aequiyoldia eightsii to evaluate large-scale spatial variation in the biochemical composition (me...
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ftconicet:oai:ri.conicet.gov.ar:11336/150675 2023-10-09T21:45:53+02:00 Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer Bascur, Miguel Morley, Simon A. Meredith, Michael Muñoz Ramírez, Carlos P. Barnes, David K. A. Schloss, Irene Ruth Sands, Chester J. Schofield, Oscar Román Gonzaléz, Alejandro Cárdenas, Leyla Venables, Hugh Brante, Antonio Urzúa, Ángel application/pdf http://hdl.handle.net/11336/150675 eng eng PeerJ info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/12679 info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.12679 http://hdl.handle.net/11336/150675 Bascur, Miguel; Morley, Simon A.; Meredith, Michael; Muñoz Ramírez, Carlos P.; Barnes, David K. A.; et al.; Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer; PeerJ; PeerJ; 9; 21-12-2021; 1-24 2167-8359 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ BIVALVE FATTY ACID INFAUNAL INVERTEBRATE PHYSIOLOGY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.7717/peerj.12679 2023-09-24T18:20:21Z The Western Antarctic Peninsula (WAP) is a hotspot for environmental change and has a strong environmental gradient from North to South. Here, for the first time we used adult individuals of the bivalve Aequiyoldia eightsii to evaluate large-scale spatial variation in the biochemical composition (measured as lipid, protein and fatty acids) and energy content, as a proxy for nutritional condition, of three populations along the WAP: O'Higgins Research Station in the north (63.3°S), Yelcho Research Station in mid-WAP (64.9°S) and Rothera Research Station further south (67.6°S). The results reveal significantly higher quantities of lipids (L), proteins (P), energy (E) and total fatty acids (FA) in the northern population (O'Higgins) (L: 8.33 ± 1.32%; P: 22.34 ± 3.16%; E: 171.53 ± 17.70 Joules; FA: 16.33 ± 0.98 mg g) than in the mid-WAP population (Yelcho) (L: 6.23 ± 0.84%; P: 18.63 ± 1.17%; E: 136.67 ± 7.08 Joules; FA: 10.93 ± 0.63 mg g) and southern population (Rothera) (L: 4.60 ± 0.51%; P: 13.11 ± 0.98%; E: 98.37 ± 5.67 Joules; FA: 7.58 ± 0.48 mg g). We hypothesize these differences in the nutritional condition could be related to a number of biological and environmental characteristics. Our results can be interpreted as a consequence of differences in phenology at each location; differences in somatic and gametogenic growth rhythms. Contrasting environmental conditions throughout the WAP such as seawater temperature, quantity and quality of food from both planktonic and sediment sources, likely have an effect on the metabolism and nutritional intake of this species. Fil: Bascur, Miguel. Universidad Catolica de la Santisima Concepcion.; Chile Fil: Morley, Simon A. British Antarctic Survey; Reino Unido Fil: Meredith, Michael. British Antarctic Survey; Reino Unido Fil: Muñoz Ramírez, Carlos P. Universidad Catolica de la Santisima Concepcion.; Chile Fil: Barnes, David K. A. British Antarctic Survey; Reino Unido Fil: Schloss, Irene Ruth. Universidad Nacional de Tierra del Fuego; Argentina. Consejo ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula British Antarctic Survey Tierra del Fuego CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Argentina Austral Meredith ENVELOPE(67.717,67.717,-71.200,-71.200) Morley ENVELOPE(-71.506,-71.506,-69.668,-69.668) Muñoz ENVELOPE(-64.133,-64.133,-66.750,-66.750) Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Rothera Research Station ENVELOPE(-68.129,-68.129,-67.566,-67.566) Yelcho ENVELOPE(-63.583,-63.583,-64.833,-64.833) PeerJ 9 e12679 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
BIVALVE FATTY ACID INFAUNAL INVERTEBRATE PHYSIOLOGY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
BIVALVE FATTY ACID INFAUNAL INVERTEBRATE PHYSIOLOGY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Bascur, Miguel Morley, Simon A. Meredith, Michael Muñoz Ramírez, Carlos P. Barnes, David K. A. Schloss, Irene Ruth Sands, Chester J. Schofield, Oscar Román Gonzaléz, Alejandro Cárdenas, Leyla Venables, Hugh Brante, Antonio Urzúa, Ángel Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
topic_facet |
BIVALVE FATTY ACID INFAUNAL INVERTEBRATE PHYSIOLOGY https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
The Western Antarctic Peninsula (WAP) is a hotspot for environmental change and has a strong environmental gradient from North to South. Here, for the first time we used adult individuals of the bivalve Aequiyoldia eightsii to evaluate large-scale spatial variation in the biochemical composition (measured as lipid, protein and fatty acids) and energy content, as a proxy for nutritional condition, of three populations along the WAP: O'Higgins Research Station in the north (63.3°S), Yelcho Research Station in mid-WAP (64.9°S) and Rothera Research Station further south (67.6°S). The results reveal significantly higher quantities of lipids (L), proteins (P), energy (E) and total fatty acids (FA) in the northern population (O'Higgins) (L: 8.33 ± 1.32%; P: 22.34 ± 3.16%; E: 171.53 ± 17.70 Joules; FA: 16.33 ± 0.98 mg g) than in the mid-WAP population (Yelcho) (L: 6.23 ± 0.84%; P: 18.63 ± 1.17%; E: 136.67 ± 7.08 Joules; FA: 10.93 ± 0.63 mg g) and southern population (Rothera) (L: 4.60 ± 0.51%; P: 13.11 ± 0.98%; E: 98.37 ± 5.67 Joules; FA: 7.58 ± 0.48 mg g). We hypothesize these differences in the nutritional condition could be related to a number of biological and environmental characteristics. Our results can be interpreted as a consequence of differences in phenology at each location; differences in somatic and gametogenic growth rhythms. Contrasting environmental conditions throughout the WAP such as seawater temperature, quantity and quality of food from both planktonic and sediment sources, likely have an effect on the metabolism and nutritional intake of this species. Fil: Bascur, Miguel. Universidad Catolica de la Santisima Concepcion.; Chile Fil: Morley, Simon A. British Antarctic Survey; Reino Unido Fil: Meredith, Michael. British Antarctic Survey; Reino Unido Fil: Muñoz Ramírez, Carlos P. Universidad Catolica de la Santisima Concepcion.; Chile Fil: Barnes, David K. A. British Antarctic Survey; Reino Unido Fil: Schloss, Irene Ruth. Universidad Nacional de Tierra del Fuego; Argentina. Consejo ... |
format |
Article in Journal/Newspaper |
author |
Bascur, Miguel Morley, Simon A. Meredith, Michael Muñoz Ramírez, Carlos P. Barnes, David K. A. Schloss, Irene Ruth Sands, Chester J. Schofield, Oscar Román Gonzaléz, Alejandro Cárdenas, Leyla Venables, Hugh Brante, Antonio Urzúa, Ángel |
author_facet |
Bascur, Miguel Morley, Simon A. Meredith, Michael Muñoz Ramírez, Carlos P. Barnes, David K. A. Schloss, Irene Ruth Sands, Chester J. Schofield, Oscar Román Gonzaléz, Alejandro Cárdenas, Leyla Venables, Hugh Brante, Antonio Urzúa, Ángel |
author_sort |
Bascur, Miguel |
title |
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
title_short |
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
title_full |
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
title_fullStr |
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
title_full_unstemmed |
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer |
title_sort |
interpopulational differences in the nutritional condition of aequiyoldia eightsii (protobranchia: nuculanidae) from the western antarctic peninsula during austral summer |
publisher |
PeerJ |
url |
http://hdl.handle.net/11336/150675 |
long_lat |
ENVELOPE(67.717,67.717,-71.200,-71.200) ENVELOPE(-71.506,-71.506,-69.668,-69.668) ENVELOPE(-64.133,-64.133,-66.750,-66.750) ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-68.129,-68.129,-67.566,-67.566) ENVELOPE(-63.583,-63.583,-64.833,-64.833) |
geographic |
Antarctic Antarctic Peninsula Argentina Austral Meredith Morley Muñoz Rothera Rothera Research Station Yelcho |
geographic_facet |
Antarctic Antarctic Peninsula Argentina Austral Meredith Morley Muñoz Rothera Rothera Research Station Yelcho |
genre |
Antarc* Antarctic Antarctic Peninsula British Antarctic Survey Tierra del Fuego |
genre_facet |
Antarc* Antarctic Antarctic Peninsula British Antarctic Survey Tierra del Fuego |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/12679 info:eu-repo/semantics/altIdentifier/doi/10.7717/peerj.12679 http://hdl.handle.net/11336/150675 Bascur, Miguel; Morley, Simon A.; Meredith, Michael; Muñoz Ramírez, Carlos P.; Barnes, David K. A.; et al.; Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer; PeerJ; PeerJ; 9; 21-12-2021; 1-24 2167-8359 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.7717/peerj.12679 |
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9 |
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e12679 |
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1779321549008928768 |