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dc.contributor.author
Bascur, Miguel
dc.contributor.author
Morley, Simon A.
dc.contributor.author
Meredith, Michael
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dc.contributor.author
Muñoz Ramírez, Carlos P.
dc.contributor.author
Barnes, David K. A.
dc.contributor.author
Schloss, Irene Ruth
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dc.contributor.author
Sands, Chester J.
dc.contributor.author
Schofield, Oscar
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Román Gonzaléz, Alejandro
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Cárdenas, Leyla
dc.contributor.author
Venables, Hugh
dc.contributor.author
Brante, Antonio
dc.contributor.author
Urzúa, Ángel
dc.date.available
2022-01-26T12:36:41Z
dc.date.issued
2021-12-21
dc.identifier.citation
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
dc.identifier.issn
2167-8359
dc.identifier.uri
http://hdl.handle.net/11336/150675
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
PeerJ
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BIVALVE
dc.subject
FATTY ACID
dc.subject
INFAUNAL
dc.subject
INVERTEBRATE
dc.subject
PHYSIOLOGY
dc.subject.classification
Biología Marina, Limnología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-01-25T14:32:29Z
dc.journal.volume
9
dc.journal.pagination
1-24
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Bascur, Miguel. Universidad Catolica de la Santisima Concepcion.; Chile
dc.description.fil
Fil: Morley, Simon A.. British Antarctic Survey; Reino Unido
dc.description.fil
Fil: Meredith, Michael. British Antarctic Survey; Reino Unido
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Fil: Muñoz Ramírez, Carlos P.. Universidad Catolica de la Santisima Concepcion.; Chile
dc.description.fil
Fil: Barnes, David K. A.. British Antarctic Survey; Reino Unido
dc.description.fil
Fil: Schloss, Irene Ruth. Universidad Nacional de Tierra del Fuego; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Sands, Chester J.. British Antarctic Survey; Reino Unido
dc.description.fil
Fil: Schofield, Oscar. Rutgers, The State University Of New Jersey; Estados Unidos
dc.description.fil
Fil: Román Gonzaléz, Alejandro. University of Exeter; Reino Unido
dc.description.fil
Fil: Cárdenas, Leyla. Universidad Pedro de Valdivia; Chile
dc.description.fil
Fil: Venables, Hugh. British Antarctic Survey; Reino Unido
dc.description.fil
Fil: Brante, Antonio. Universidad Catolica de la Santisima Concepcion.; Chile
dc.description.fil
Fil: Urzúa, Ángel. Universidad Catolica de la Santisima Concepcion.; Chile
dc.journal.title
PeerJ
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://peerj.com/articles/12679
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.7717/peerj.12679
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