The acute and chronic effects of endosulfan pulse-exposure on Jordanella floridae (Florida flagfish) over one complete life-cycle

被引：23

作者：

Beyger, Lindsay ^{[1
]}

Orrego, Rodrigo ^{[1
]}

Guchardi, John ^{[1
]}

Holdway, Douglas ^{[1
]}

机构：

[1] Univ Ontario, Fac Sci, Inst Technol, Oshawa, ON L1H 7K4, Canada

来源：

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2012年 / 76卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Endosulfan; Life-cycle; Reproduction; Flagfish; FISH MELANOTAENIA-FLUVIATILIS; MEDAKA ORYZIAS-LATIPES; ACUTE TOXICITY; INSECTICIDE ENDOSULFAN; RAINBOW-TROUT; PESTICIDES; ORGANOCHLORINE; BEHAVIOR; BIOACCUMULATION; METHOXYCHLOR;

D O I：

10.1016/j.ecoenv.2011.09.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Endosulfan is an organochlorine pesticide, which is used worldwide and has known toxic effects on non-target organisms including fish. This research investigated the acute and chronic effects of pulse-exposed endosulfan on Florida flagfish (Jordanella floridae). A 4-h pulse-exposure of endosulfan to larval flagfish caused a significant increase in mortality after 96 h at nominal concentrations equal to or greater than 100 mu g/L. Some of the acute sub-lethal observations included hyperactivity, convulsions, and axis malformation. Seven-eight day old post-hatch flagfish were pulse-exposed for 4 h to endosulfan and then monitored over one full life-cycle for chronic effects on growth, reproduction, and survivability. There were no growth or reproductive effects of endosulfan pulse-exposure up to the highest exposure concentration of 10.8 mu g/L. Thus, the life-cycle 4-h pulse-exposure no observed effect concentration (NOEC) and lowest observed effect concentration (LOEC) were 3.3 and 10.8 mu g/L endosulfan, respectively, based on significantly higher larval and juvenile mortality. Crown Copyright (C) 2011 Published by Elsevier Inc. All rights reserved.

引用

页码：71 / 78

页数：8

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