Fitxers

253339.pdf (1.26 MB)

Embargament

Document embargat fins el 2027-08-31

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2022-09

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231609

Sulfur stable isotope ratios provide further insight into movements of the fin whale, an oceanic long-range migrant.

Títol de la revista

Autors

Director/Tutor

Contribució addicional

ISSN de la revista

Títol del volum

Resum

Stable isotope ratios have proven a valuable tool to investigate marine mammal ecology, including diet of species, distribution and migratory movements. While most studies have focused on δ 15 N and δ 13 C values, knowledge on the sources and tissue dynamics of δ 34 S values is still very limited. We examined the sequential variation of δ 15 N, δ 13 C and δ 34 S values along the baleen plates from fin whales occurring off W Iceland in summer. All baleen plates exhibited fluctuations along their growing axis. A significantly synchronic correlation was found between δ 15 N and δ 34 S values, while the relation of these values with δ 13 C was highly variable and inconsistent. These results were similar to those from previous studies in Greenland bowhead whales, although the periodicity of the oscillations was reversed. Although seasonal variations in food intake and the associated cycles of protein synthesis and catabolism, may have played a role in such fluctuations and the observed differences between species, we suggest that the main driver for the δ 15 N and δ 34 S fluctuations reflected in baleen plates is the variation of local baselines between winter and summer grounds. This offers great potential for using δ 34 S values to study migratory movements and destinations provided that the actual patterns of geographic variation of such values are clarified.

Recurs relacionat

Matèries

Balenes, Islàndia, Migració (Població)

Matèries (anglès)

Whales, Iceland, Migration (Population)

Citació

Col·leccions

Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

Citació

García-Vernet Raquel, et al. Sulfur stable isotope ratios provide further insight into movements of the fin whale, an oceanic long-range migrant. Marine Ecology Progress Series. 2022. Vol. 692, num. 185-194. ISSN 0171-8630. [consulted: 6 of October of 2026]. Available at: https://hdl.handle.net/2445/231609

Exportar metadades

JSON - METS

Compartir registre