Assessment of trace elements, POPs, Po-210 and stable isotopes (N-15 and C-13) in a rare filter-feeding shark: The megamouth

作者：de Moura Jailson Fulgencio^*; Merico Agostino; Montone Rosalinda Carmela; Silva Josilene; Seixas Tercia Guedes; de Oliveira Godoy Jose Marcus; Saint'Pierre Tatiana Dillenburg; Hauser Davis Rachel Ann; Di Beneditto Ana Paula Madeira; Reis Estefane Cardinot; Tavares Davi Castro; Lemos Leila Soledade; Siciliano Salvatore

来源：Marine Pollution Bulletin, 2015, 95(1): 402-406.

DOI：10.1016/j.marpolbul.2015.03.038

• Megachasma pelagios
• Marine pollution
• Stable isotopes
• (210)Polonium
• Organic contaminants
• Trace metals

With less than 60 records being reported worldwide, the megamouth (Megachasma pelagios) is today one of the least known shark species inhabiting our oceans. Therefore, information concerning the biology and ecology of this enigmatic organism is very scarce and limited to feeding behaviour and preferred habitat. The present work reports new data on the concentrations of trace elements, organic mercury, POPs and Po-210 in hepatic and muscular tissues of a specimen found stranded in the southeastern coast of Brazil. Additionally, we provide new evidence based on stable isotope analysis (delta N-15 and delta C-13) confirming the preference for the pelagic habitat and the zooplanlctivorous feeding behaviour of the megamouth. These results are consistent with the low concentrations of organic pollutant compounds and other elements measured in our samples.

• 出版日期2015-6-15