The consequences of feminization in breeding groups of wild fish.
The consequences of feminization in breeding groups of wild fish.
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DOI：
10.1289/ehp.1002555
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发表时间：
2011-03
影响因子：
10.4
通讯作者：
Sumpter JP
中科院分区：
文献类型：
--
作者：
Harris CA;Hamilton PB;Runnalls TJ;Vinciotti V;Henshaw A;Hodgson D;Coe TS;Jobling S;Tyler CR;Sumpter JP
内分泌干扰物(EDCs)使自然女性化是影响陆生和水生野生动物的关键环境问题。一个关键但尚未得到解答的问题是，内分泌细胞是否会对野生动物种群的可持续性产生不利影响。人们普遍担心，两性鱼的繁殖力受到了损害，可能会造成种群水平的后果。然而，到目前为止，只有体外精子质量数据可以支持这一假设。这项研究的目的是检验野生内分泌紊乱的鱼是否能够在现实的繁殖场景中成功竞争。在利用野生蟑螂(Rutilus Rutilus)进行的两个竞争性育种实验中，我们利用DNA微卫星进行亲子鉴定，从而确定成虫的繁殖成功。在这两项研究中，大多数两性鱼都能够繁殖，尽管取得了不同程度的成功。在第一项研究中，大多数两性鱼只被温和地雌性化，体长是与繁殖成功相关的唯一因素。在第二项研究中，包括了更多数量更严重的双性鱼，繁殖能力与双性鱼的严重程度呈负相关。在这项研究中，对于大多数女性化的个体来说，双性条件使生殖性能下降了76%，这表明双性条件对生殖性能有显著的不利影响。雄鱼的雌性化很可能是河流繁殖性能的一个重要决定因素，在河流中，中度到重度雌性化的雄鱼比例很高。
The feminization of nature by endocrine-disrupting chemicals (EDCs) is a key environmental issue affecting both terrestrial and aquatic wildlife. A crucial and as yet unanswered question is whether EDCs have adverse impacts on the sustainability of wildlife populations. There is widespread concern that intersex fish are reproductively compromised, with potential population-level consequences. However, to date, only in vitro sperm quality data are available in support of this hypothesis. The aim of this study was to examine whether wild endocrine-disrupted fish can compete successfully in a realistic breeding scenario. In two competitive breeding experiments using wild roach (Rutilus rutilus), we used DNA microsatellites to assign parentage and thus determine reproductive success of the adults. In both studies, the majority of intersex fish were able to breed, albeit with varying degrees of success. In the first study, where most intersex fish were only mildly feminized, body length was the only factor correlated with reproductive success. In the second study, which included a higher number of more severely intersex fish, reproductive performance was negatively correlated with severity of intersex. The intersex condition reduced reproductive performance by up to 76% for the most feminized individuals in this study, demonstrating a significant adverse effect of intersex on reproductive performance. Feminization of male fish is likely to be an important determinant of reproductive performance in rivers where there is a high prevalence of moderately to severely feminized males.
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影响因子：
10.4
作者：
Jobling S;Williams R;Johnson A;Taylor A;Gross-Sorokin M;Nolan M;Tyler CR;van Aerle R;Santos E;Brighty G
通讯作者：
Brighty G
DOI：
10.1111/j.1365-2109.1985.tb00078.x
发表时间：
1985-01-01
期刊：
Aquaculture and Fisheries Management
影响因子：
--
作者：
DIAMOND M
通讯作者：
DIAMOND M
影响因子：
6.8
作者：
Gutjahr-Gobell, RE;Zaroogian, GE;Mills, LJ
通讯作者：
Mills, LJ
影响因子：
11.4
作者：
Jobling, S;Nolan, M;Sumpter, JP
通讯作者：
Sumpter, JP
由于化学女性化导致被利用的野生蟑螂（Rutilus rutilus）种群面临灭绝风险
影响因子：
11.4
作者：
An, Wei;Hu, Jianying;Yang, Min
通讯作者：
Yang, Min