Foraging depth depicts resource partitioning and contamination level in a pelagic shark assemblage: Insights from mercury stable isotopes.
Foraging depth
Mercury accumulation
Mercury stable isotopes
Resource partitioning
Top predator
Trophic ecology
Journal
Environmental pollution (Barking, Essex : 1987)
ISSN: 1873-6424
Titre abrégé: Environ Pollut
Pays: England
ID NLM: 8804476
Informations de publication
Date de publication:
15 Aug 2021
15 Aug 2021
Historique:
received:
11
02
2021
revised:
29
03
2021
accepted:
30
03
2021
pubmed:
24
4
2021
medline:
16
6
2021
entrez:
23
4
2021
Statut:
ppublish
Résumé
The decline of shark populations in the world ocean is affecting ecosystem structure and function in an unpredictable way and new ecological information is today needed to better understand the role of sharks in their habitats. In particular, the characterization of foraging patterns is crucial to understand and foresee the evolution of dynamics between sharks and their prey. Many shark species use the mesopelagic area as a major foraging ground but the degree to which different pelagic sharks rely on this habitat remains overlooked. In order to depict the vertical dimension of their trophic ecology, we used mercury stable isotopes in the muscle of three pelagic shark species (the blue shark Prionace glauca, the shortfin mako shark Isurus oxyrinchus and the smooth hammerhead shark Sphyrna zygaena) from the northeastern Pacific region. The Δ
Identifiants
pubmed: 33892372
pii: S0269-7491(21)00648-5
doi: 10.1016/j.envpol.2021.117066
pii:
doi:
Substances chimiques
Carbon Isotopes
0
Mercury Isotopes
0
Nitrogen Isotopes
0
Mercury
FXS1BY2PGL
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
117066Informations de copyright
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