Effects of nickel chloride and oxygen depletion on behaviour and vitality of zebrafish (Danio rerio, Hamilton, 1822) (Pisces, Cypriniformes) embryos and larvae

被引：37

作者：

Kienle, Cornelia ^{[1
,3
]}

Koehler, H.-R. ^{[1
]}

Filser, Juliane ^{[2
]}

Gerhardt, Almut ^{[3
]}

机构：

[1] Univ Tubingen, Dept Anim Physiol Ecol, D-72072 Tubingen, Germany

[2] Univ Bremen, Dept Gen & Theoret Ecol, D-28359 Bremen, Germany

[3] LimCo Int, D-49477 Ibbenburen, Germany

来源：

ENVIRONMENTAL POLLUTION | 2008年 / 152卷 / 03期

关键词：

behaviour; NiCl2; O-2; multispecies freshwater Biomonitor (R);

D O I：

10.1016/j.envpol.2007.06.069

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We examined acute (2 h exposure of 5-day-old larvae) and subchronic (exposure from fertilization up to an age of 11 days) effects of NiCl2 center dot 6H(2)O on embryos and larvae of zebrafish (Danio rerio), both alone and in combination with oxygen depletion. The following endpoints were recorded: acute exposure: locomotory activity and Survival; subchronic exposure: hatching rate, deformations, locomotory activity (at 5, 8 and I I days) and mortality. In acute exposures nickel chloride (7.5-15 mg Ni/L) caused decreasing locomotory activity. Oxygen depletion (<= 2.45 +/- 0.16 mg O-2/L) also resulted in significantly reduced locomotory activity. In the subchronic test, exposure to >= 10 mg Ni/L resulted in delayed hatching at an age of 96 h, in decreased locomotory activity at an age of 5 days, and increased mortality at an age of I I days (LC20 = 9.5 mg Ni/L). The observed LOEC for locomotory activity (7.5 mg Ni/L) is in the range of environmentally relevant concentrations. Since locomotory activity was already affected by acute exposure, this parameter is recommended to supplement commonly recorded endpoints of toxicity. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：612 / 620

页数：9