Tilapia Larvae Aroclor 1254 Exposure: Effects on Gonads and Circulating Thyroid Hormones During Adulthood

被引：0
作者：
A. M. Coimbra
M. A. Reis-Henriques
机构：
[1] ICBAS-UP Instituto de Ciências Biomédicas Abel Salazar da Universidade do Porto,Laboratório de Fisiologia Aplicada
[2] CIIMAR-UP Centro Interdisciplinar de Investigação Marinha e Ambiental da Universiade do Porto,Laboratório de Toxicologia Ambiental
来源：
Bulletin of Environmental Contamination and Toxicology | 2007年 / 79卷
关键词：
Tilapia; Aroclor 1254; PCBs; Reproduction; Ovary; Testis; Thyroid hormones; Larvae;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Aroclor 1254 a polychlorinated biphenyls (PCBs) mixture, when administrated through the diet, was previously found to inhibit adult tilapia (Oreochromis niloticus) reproduction. Since fish larvae can be more sensitive to contaminants, the objectives of this study were to evaluate in adults the impact in gonad development and in thyroid function of Aroclor 1254 administrated at larvae stages. Aroclor 1254 exposed tilapia presented both ovary and testicular alterations and a decline in T4 plasma concentration while T3 remained unaltered. This work shows exposure to Aroclor 1254 during tilapia early life stages causes a disruption of the reproductive axis that enables reproduction.
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页码：488 / 493
页数：5
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