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首页> 外文期刊>Oceanographic Literature Review >Contrasting reproductive health of female clams Megapitaria squalida from two nearby metal-polluted sites in the Gulf of California: Potential effects of copper, lead,and cobalt
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Contrasting reproductive health of female clams Megapitaria squalida from two nearby metal-polluted sites in the Gulf of California: Potential effects of copper, lead,and cobalt

机译：对比加利福尼亚州海湾附近附近金属污染景点的雌性蛤蜊兆的生殖健康：铜，铅和钴的潜在影响

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摘要

We studied the effects of chronic exposure to metals on energy reserves and reproduction in the clam Megapitaria squalida in two nearby populations exposed to different levels of pollution from mining operations in the Gulf of California, Mexico. Female M. squalida from San Lucas beach had good reproductive health status, whereas Santa Rosalia specimens consistently showed low energy reserves, massive oocyte resorption throughout the year, high frequencies of undifferentiated individuals, low proportions of ripe and spawning organisms, smaller and fewer oocytes per follicle, and significantly lower follicular areas. Ovarian levels of Co, Cu, Pb, Mn, and Zn were consistently higher in clams from Santa Rosalia. The poor reproductive health of clams inhabiting this site may be attributed to their long-term exposure to high Co, Cu, and Pb concentrations, as these have been shown to cause toxicity and reproductive impairments in other marine organisms.
机译：我们研究了慢性暴露于金属对金属对金属的影响，并在墨西哥海湾的采矿业务污染的附近普及的附近群体中的蛤蜊百万像素中的繁殖。来自圣卢卡斯海滩的女性M. Squalida具有良好的生殖健康状况，而圣诞老人罗莎莉亚标本始终如一地显示出低能量储备，全年卵母细胞吸收，未分化的个体频率高，成熟和产卵生物的低比例低，较少的卵母细胞卵泡，显着较低的滤窗区域。卵巢水平的CO，Cu，Pb，Mn和Zn含有来自Santa Rosalia的蛤蜊。居住在该网站的蛤蜊的恶劣生殖健康可能归因于它们的长期暴露于高CO，Cu和Pb浓度，因为这些已被证明在其他海洋生物中引起毒性和生殖损伤。

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    《Oceanographic Literature Review》 |2020年第10期|2252-2252|共1页
  • 作者

    J.A. Yee- Duarte; I.S. Racotta; M.A. Camacho- Mondragon;

  • 作者单位

    Institute Politecnico Nacional Centro Interdisciplinary de Ciencias Marinas Av. Instituto Politecnico Nacional s/n Col. Playa Palo de Santa Rita La Paz Baja California Sur C.P. 23096 Mexico;

    Institute Politecnico Nacional Centro Interdisciplinary de Ciencias Marinas Av. Instituto Politecnico Nacional s/n Col. Playa Palo de Santa Rita La Paz Baja California Sur C.P. 23096 Mexico;

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