Inhibition in fertilisation of coral gametes following exposure to nickel and copper
Inhibition in fertilisation of coral gametes following exposure to nickel and copper
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DOI：
10.1016/j.ecoenv.2017.07.009
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发表时间：
2017-11-01
影响因子：
6.8
通讯作者：
Jolley, Dianne F.
中科院分区：
文献类型：
--
作者：
Gissi, Francesca;Stauber, Jenny;Jolley, Dianne F.
在热带地区开采和生产镍有可能对具有生态价值的热带海洋生态系统产生影响。目前，几乎没有数据可以评估镍暴露于热带生态系统的风险，并得出生态相关的水质准则。特别是缺乏关键物种的数据，如造礁石珊瑚，它们创造了支持许多其他海洋物种的复杂结构的珊瑚礁生境。作为一个更大的研究开发镍在热带亚太地区的风险评估工具的一部分，我们调查了镍的毒性受精成功的三种石珊瑚：鹿角珊瑚，鹿角珊瑚digitifera和Platygyra daedalea。在文献中，有更多的数据是关于铜对珊瑚受精作用的影响，因此可以与过去的研究进行比较，铜对A。aspera和P. daedalea也进行了测定。总的来说，铜比镍对测试物种的受精成功更具毒性。粗轴孔珊瑚对镍最敏感（NOEC < 280 μ g Ni/L），其次是粗轴孔珊瑚（A.指状假单胞菌的EC 10值为2000 μ g Ni/L，而拟青霉的EC 10值大于4610 μ g Ni/L。粗轴孔珊瑚也是对铜更敏感的物种，EC 10为5.8 μ g Cu/L。对P. daedalea的EC 10为16 μ g Cu/L，与以前的研究相似。这是第一次，镍的毒性受精成功的鹿角珊瑚物种已被报道，从而提供了宝贵的数据，可以有助于发展可靠的水质准则镍在热带海洋沃茨。
The mining and production of nickel in tropical regions have the potential to impact on ecologically valuable tropical marine ecosystems. Currently, few data exist to assess the risks of nickel exposure to tropical ecosystems and to derive ecologically relevant water quality guidelines. In particular, data are lacking for keystone species such as scleractinian corals, which create the complex structural reef habitats that support many other marine species. As part of a larger study developing risk assessment tools for nickel in the tropical Asia-Pacific region, we investigated the toxicity of nickel on fertilisation success in three species of scleractinian corals: Acropora aspera, Acropora digitifera and Platygyra daedalea. In the literature, more data are available on the effects of copper on coral fertilisation, so to allow for comparisons with past studies, the toxicity of copper to A. aspera and P. daedalea was also determined. Overall, copper was more toxic than nickel to the fertilisation success of the species tested. Acropora aspera was the most sensitive species to nickel (NOEC < 280 mu g Ni/L), followed by A. digitifera with an EC10 of 2000 mu g Ni/L and P. daedalea (EC10 > 4610 mu g Ni/L). Acropora aspera was also the more sensitive species to copper with an EC10 of 5.8 mu g Cu/L. The EC10 for P. daedalea was 16 mu g Cu/L, similar to previous studies. This is the first time that the toxicity of nickel on fertilisation success in Acropora species has been reported, and thus provides valuable data that can contribute to the development of reliable water quality guidelines for nickel in tropical marine waters.