Effects of reduced pH and elevated pCO2 on sperm motility and fertilisation success in blood clam, Tegillarca granosa
| Autor: | Yichen Wang, Guangxu Liu, Wandong Fu, Huicheng Yang, Shanjie Zha, Cheng Guo, Xueliang Chai, Saixi Liu, Wenhao Su, Wei Shi, Xinguo Zhao, Yu Han |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Tegillarca granosa Ecology 010604 marine biology & hydrobiology Ocean acidification Aquatic Science Biology biology.organism_classification 01 natural sciences pCO2 03 medical and health sciences 030104 developmental biology Animal science Botany Seawater Decreased ph Ecology Evolution Behavior and Systematics Fertilisation Sperm motility Water Science and Technology |
| Zdroj: | New Zealand Journal of Marine and Freshwater Research. 51:543-554 |
| ISSN: | 1175-8805 0028-8330 |
| DOI: | 10.1080/00288330.2017.1296006 |
| Popis: | Although it has been shown that ocean acidification generally has a negative impact on fertilisation success of broadcast spawning marine organisms, whether induced fertilisation success reduction is a consequence of elevated pCO2 or decreased pH remains unclear. Therefore, the impacts of HCl- and CO2-induced acidified seawater on sperm motility and gametes fertilisation capability of a broadcast spawning bivalve species, Tegillarca granosa were investigated in the present study. The results showed that the fertilisation capability of both gametes was significantly reduced in either HCl- or CO2-acidified seawater. In addition, significant impacts on sperm motility were observed in the group exposed to CO2-acidified seawater, suggesting that this parameter is sensitive to pCO2 instead of solely pH value. The differences between the two seawater acidification manipulating methods may be due to the intrinsic difference in diffusion capability of CO2 and protons. |
| Databáze: | OpenAIRE |
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