Metal bioaccumulation and transfer in benthic species based on isotopic signatures of individual amino acids in South China Sea cold seep environments.
Environ Pollut
; 317: 120822, 2023 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-36481461
ABSTRACT
Cold seeps are deep-sea 'oases' with dense and dominant coexisting populations of large mussels and tubeworms under extreme environments. Under such natural source of high metal concentrations, the present study investigated the metal bioaccumulation and transfer with trophic positions in six benthic species by the isotopic δ15N and δ13C signatures in the active Haima cold seep, South China Sea. Comparing the isotopic signatures of bulk-tissue and amino acids by compound-specific isotopic analysis (CSIA-AA), we found that the bulk trophic (TPB) values in the benthos except mussels were significantly higher than those of CSIA-based TPGlu-Phe values. The estimated CSIA-based TPGlu-Phe values showed a relatively compressed food chain with much changeable and unique amino acid isotopic heterogeneity, followed slim tubeworms (1.20)<mussels (1.38)<clams (1.52)Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Contaminantes Químicos del Agua
/
Bivalvos
/
Mercurio
Límite:
Animals
País/Región como asunto:
Asia
Idioma:
En
Revista:
Environ Pollut
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2023
Tipo del documento:
Article
País de afiliación:
China