Toxicity of crude oil and pyrene to the embryos of beach spawning capelin (Mallotus villosus)

被引:34
作者
Frantzen, Marianne [1 ]
Falk-Petersen, Inger-Britt [2 ]
Nahrgang, Jasmine [1 ]
Smith, Timothy J. [1 ]
Olsen, Gro H. [1 ]
Hangstad, Thor Arne [1 ]
Camus, Lionel [1 ,3 ]
机构
[1] Akvaplan Niva, Fram Ctr, N-9296 Tromso, Norway
[2] Univ Tromso, Fac Biosci Fisheries & Econ, N-9037 Tromso, Norway
[3] Univ Ctr Svalbard, N-9171 Longyearbyen, Norway
关键词
Polycyclic aromatic hydrocarbon; Crude oil; Pyrene; Capelin; Embryos; LC50; POLYCYCLIC AROMATIC-HYDROCARBONS; PRINCE-WILLIAM-SOUND; EARLY-LIFE-STAGES; SALMON ONCORHYNCHUS-GORBUSCHA; HERRING CLUPEA-PALLASI; PETROLEUM-HYDROCARBONS; FISH EMBRYOS; POPULATION BIOLOGY; SPILL; LARVAE;
D O I
10.1016/j.aquatox.2011.09.022
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Due to a northward shift in oil and gas activities, there is an increasing need to understand the potential anthropogenic impacts of oil-related compounds on sub-Arctic and Arctic organisms, particularly those in coastal habitats. Capelin (Mallotus villosus), a key fish species in the Barents Sea ecosystem, undertakes aggregated spawning at both intertidal and subtidal coastal localities in northern Norway. To investigate the sensitivity of capelin embryos to oil compounds, newly fertilized capelin eggs were collected from a spawning beach and exposed until hatch (32 days) to either the water soluble fraction of crude oil or the single PAH compound, pyrene. Threshold levels for egg mortality, development and hatching success were determined. Concentrations of 40 mu g/L crude oil (Sigma 26 PAHs) and 55 mu g/L pyrene significantly increased embryonic mortality rates and decreased hatching success, compared with controls, indicating that a potential oil spill in the vicinity of capelin spawning grounds may cause significant impacts. No significant incidence of adverse effects such as yolk sac oedema, pericardia oedema, haemorrhages, craniofacial abnormalities, premature hatch or inhibited growth was observed. Histological studies of hatched larvae did not reveal specific sublethal effects in tissues and organs. Developmental delays and subsequent embryo death were noticed at the period of eye pigmentation in affected groups. Early life-history stages of capelin are sensitive indicators of PAH impacts, but the mechanisms responsible for the toxic effects require further investigation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:42 / 52
页数:11
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