Comparison study on the effects of Alexandrium minutum and Gymnodinium sp. on development of egg and larvae of Sparus macrocephalus
Static bioassay tests were conducted to investigate the effects of Alexandrium minutum and Gymnodinium sp. on the growth and development of Sparusmacrocephalus. The eggs of S. macrocephalus were incubated in enamel basin at different density of cells (30 000 cell·mL<sup>-1</sup>, 15 000...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2010-09-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2010.05.017 |
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| Summary: | Static bioassay tests were conducted to investigate the effects of Alexandrium minutum and Gymnodinium sp. on the growth and development of Sparusmacrocephalus. The eggs of S. macrocephalus were incubated in enamel basin at different density of cells (30 000 cell·mL<sup>-1</sup>, 15 000 cell·mL<sup>-1</sup>, 7 500 cell·mL<sup>-1</sup> and 0 cell·mL<sup>-1</sup>) of two planktons, at the temperature (20.2 ± 2.0)℃ and 60 percent of dissolved oxygen saturation. The same conditions were carried out to culture the larvae. The results showed Gymnodinium sp. was more toxic to the eggs and larvae of S. macrocephalus than A. minutum, and both species restrained the growth of body length and mass increasing of the larvae. There was significant difference in the influence of A. minutum and Gymnodinium sp. on the ATPase of the larvae of S. macrocephalus, and Gymnodinium sp. inhibited more strongly to its ATPase enzyme activities. The results above show that Gymnodinium sp. has greater impact on the early development of S. macrocephalus than A. minutum. |
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| ISSN: | 1008-9209 2097-5155 |