Biomarkers
; Geographical regions
; Heavy metals
; Lead
; Clavata
; Galeorhinus galeus
; Geographical area
; Isurus oxyrinchus
; Long term monitoring
; Prionace glauca
; Regulatory limit
; Temporal and spatial scale
; Metals
; arsenic
; cadmium
; chromium
; copper
; lead
; mercury
; metal
; rubidium
; selenium
; stable isotope
; strontium
; zinc
; arsenic
; cadmium
; heavy metal
; lead
; mercury
; bioaccumulation
; bioindicator
; biomonitoring
; fish
; food web
; hazard assessment
; heavy metal
; spatiotemporal analysis
; stable isotope
; animal tissue
; Article
; chemical analysis
; elasmobranch
; female
; food web
; Galeorhinus galeus
; geographic distribution
; indicator organism
; Isurus oxyrinchus
; male
; marine species
; nonhuman
; pelagic species
; Prionace glauca
; Raja clavata
; sex difference
; shark
; trophic level
; animal
; Atlantic Ocean
; environmental monitoring
; food chain
; shark
; Elasmobranchii
; Galeorhinus galeus
; Isurus oxyrinchus
; Prionace glauca
; Raja clavata
; Animals
; Arsenic
; Atlantic Ocean
; Cadmium
; Environmental Monitoring
; Food Chain
; Lead
; Mercury
; Metals, Heavy
; Sharks
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Heavy metals are a hazard to marine fauna and human health. In this study we assess stable isotopes and metal content in Prionace glauca and Isurus oxyrinchus and analyse these results within and among other species and across regions and geographical areas. Also, we evaluate their suitability, together with Raja clavata and Galeorhinus galeus, as Mid-Atlantic bioindicators. Prionace glauca and I. oxyrinchus shared the same trophic level in a pelagic food web and did not present significant differences between genders or metals, except for As. Arsenic and Hg accumulated while Cd and Pb were not detected. One I. oxyrinchus presented Hg values above regulatory limits. A high Hg exposure was associated with I. oxyrinchus since its maximum weekly intake was exceeded. Elasmobranchs can be used as metal sentinels, each presenting different key features which defines a good marine bioindicator, allowing long-term monitoring at different temporal and spatial scales. � 2017 Elsevier Ltd
CIBIO, Centro de Investiga��o em Biodiversidade e Recursos Gen�ticos, InBIO Laborat�rio Associado, P�lo dos A�ores - Departamento de Biologia, Universidade dos A�ores, Rua M�e de Deus, 58, Ponta Delgada, Azores, Portugal; IVAR, Instituto de Investiga��o em Vulcanologia e Avalia��o de Riscos, University of the Azores, Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, Ponta Delgada, Azores, Portugal
Recommended Citation:
Torres P.,Trist�o da Cunha R.,Rodrigues A.D.S.. Mid-Atlantic elasmobranchs: Suitable metal scouts?[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)