کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757530 1622719 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mid-Atlantic elasmobranchs: Suitable metal scouts?
ترجمه فارسی عنوان
اقیانوس اطلس اقیانوس اطلس: معروف فلزی مناسب؟
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 117, Issues 1–2, 15 April 2017, Pages 203-213
نویسندگان
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