Stable isotope composition of Antarctic marine mammals collected at the turn of the 20thcentury: assessing the baseline for long-term changes in the marine ecosystem DOI Creative Commons
Evgeny A. Genelt-Yanovskiy,

Anna S. Genelt-Yanovskaya,

María Fontanals-Coll

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 15, 2024

Abstract Great Antarctic expeditions, and subsequently developed seal hunting whaling industries left an enormous legacy in natural history museum collections. Stable isotopes of carbon δ 13 C nitrogen 15 N from specimens preserved the collections can provide valuable information on long-term changes foraging ecology species specify baselines for future comparisons with modern samples. To basis analysing impact marine ecosystem structuring, we conducted bulk isotope analysis baleen whales ( Balaenoptera musculus B. physalus ), beaked whale (Berardius arnuxii) , seals (Arctocephalus australis Hydrurga leptonyx ) collected between 1843 1951, collection Natural History Museum, London. Having controlled Suess effect, values H. were different before after onset industrial (1904). Bone collagen corresponding trophic position consistently changed A. australis, suggesting potential temporal shifts their diets. This study highlights use tracing historical trends that could be associated population structure distribution indicate variability ecology.

Language: Английский

Stable isotope composition of Antarctic marine mammals collected at the turn of the 20thcentury: assessing the baseline for long-term changes in the marine ecosystem DOI Creative Commons
Evgeny A. Genelt-Yanovskiy,

Anna S. Genelt-Yanovskaya,

María Fontanals-Coll

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 15, 2024

Abstract Great Antarctic expeditions, and subsequently developed seal hunting whaling industries left an enormous legacy in natural history museum collections. Stable isotopes of carbon δ 13 C nitrogen 15 N from specimens preserved the collections can provide valuable information on long-term changes foraging ecology species specify baselines for future comparisons with modern samples. To basis analysing impact marine ecosystem structuring, we conducted bulk isotope analysis baleen whales ( Balaenoptera musculus B. physalus ), beaked whale (Berardius arnuxii) , seals (Arctocephalus australis Hydrurga leptonyx ) collected between 1843 1951, collection Natural History Museum, London. Having controlled Suess effect, values H. were different before after onset industrial (1904). Bone collagen corresponding trophic position consistently changed A. australis, suggesting potential temporal shifts their diets. This study highlights use tracing historical trends that could be associated population structure distribution indicate variability ecology.

Language: Английский

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