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

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Авг. 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.

Язык: Английский

Feeding ecology and foraging behaviour of Arnoux's beaked whale Berardius arnuxii (Duvernoy, 1851) during the period of industrial whaling in Antarctica DOI
Evgeny A. Genelt-Yanovskiy,

Anna S. Genelt-Yanovskaya,

María Fontanals-Coll

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Май 13, 2025

Abstract Arnoux's beaked whale Berardius arnuxii is the largest and elusive species of family Ziphiidae in Southern Hemisphere, data on its foraging ecology limited. We present bulk bone collagen δ13C δ15N for five whales from Deception Island Falkland Islands opportunistically collected during industrial-scale whaling 1920s-1930s. Compared to scarce published data, isotopic signatures these specimens demonstrate similarity with South Atlantic high dissimilarity New Zealand. By applying Bayesian mixing model analyses stable isotope we attempt provide retrospective identification potential prey items B. studied region.

Язык: Английский

Процитировано

0
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

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Авг. 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.

Язык: Английский

Процитировано

0