DOI: 10.1016/j.marpolbul.2017.12.006
Scopus记录号: 2-s2.0-85037352587
论文题名: Mercury in blue shark (Prionace glauca) and shortfin mako (Isurus oxyrinchus) from north-eastern Atlantic: Implication for fishery management
作者: Biton-Porsmoguer S. ; Bǎnaru D. ; Boudouresque C.F. ; Dekeyser I. ; Bouchoucha M. ; Marco-Miralles F. ; Lebreton B. ; Guillou G. ; Harmelin-Vivien M.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 127 起始页码: 131
结束页码: 138
语种: 英语
英文关键词: Blue shark
; Long-line fishery
; Mercury
; NE Atlantic
; Pelagic sharks
; Shortfin mako
Scopus关键词: Commerce
; Fisheries
; Muscle
; Blue sharks
; Long line
; Ne atlantic
; Pelagic sharks
; Shortfin mako
; Mercury (metal)
; mercury
; bioaccumulation
; concentration (composition)
; fishery management
; juvenile
; mercury (element)
; muscle
; shark
; spatial variation
; animal tissue
; Article
; Atlantic Ocean
; bioaccumulation
; concentration (parameters)
; European Union
; fast muscle
; female
; fishery management
; gender
; Isurus oxyrinchus
; juvenile animal
; male
; molecular weight
; muscle mass
; muscle tissue
; nonhuman
; predator
; Prionace glauca
; seasonal variation
; shark
; Spain
; Atlantic Ocean
; Atlantic Ocean (Northeast)
; Galicia [Spain]
; Pontevedra [Galicia]
; Spain
; Vigo
; Chondrichthyes
; Isurus
; Isurus oxyrinchus
; Prionace glauca
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Pelagic sharks (blue shark Prionace glauca and shortfin mako Isurus oxyrinchus) caught by long-line Spanish and Portuguese fleets in the NE Atlantic, were sampled at Vigo fish market (Spain) for total mercury (Hg) analysis. Hg concentration in white muscle increased with size and weight in both species, but at a higher rate in shortfin mako than in the blue shark. No difference was found with sex, year and season. Spatial variation was observed in the blue shark with higher Hg values in the North of the Azorean archipelago, but not in the shortfin mako. These high-level predators are particularly susceptible to bioaccumulate contaminants (Hg) in their tissues (muscle). However, a significant positive relationship between Hg concentration and trophic level (δ15N) of individuals was observed only in the shortfin mako. Most sharks landed were juveniles which presented Hg concentration lower than the maximum limit allowed by the European Union (1 mg kg− 1 wet weight) for marketing. However, concentrations above this threshold were most recorded in blue sharks larger than 250 cm total length (TL) and in shortfin makos larger than 190 cm TL, raising the question of the commercialization of large-sized individuals. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88526
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Aix-Marseille University, CNRS/INSU, Toulon University, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Campus de Luminy, Marseille, France; Institut Français de Recherche pour l'Exploitation de la Mer (Ifremer), Z.P. Brégaillon, CS 20203, La Seyne-sur-Mer, France; Littoral Environnement et Sociétés, UMR 7266 CNRS-Université de La Rochelle, 2 Rue Olympe de Gouges, La Rochelle, France
Recommended Citation:
Biton-Porsmoguer S.,Bǎnaru D.,Boudouresque C.F.,et al. Mercury in blue shark (Prionace glauca) and shortfin mako (Isurus oxyrinchus) from north-eastern Atlantic: Implication for fishery management[J]. Marine Pollution Bulletin,2018-01-01,127