| 摘要: |
| 于1988—1990年进行水温(0—30℃)对光棘球海胆不同发育阶段的影响的试验。结果表明,水温对光棘球海胆各发育阶段的生长等均有显著影响,并且,不同发育阶段对水温的要求不同。其中,低于5℃或者高于26℃时,受精卵不发育;低于15℃或者高于24℃时,浮游幼体发育不正常;低至0℃或者高至30℃时,幼海胆难以生存,生长适温在16—22℃;成海胆,0℃时活力显著减弱但短期内无死亡,30℃则大量死亡,生长适温在10—24℃。各发育阶段以浮游幼体期对水温的适应能力最弱,成海胆期适应能力最强。 |
| 关键词: 光棘球海胆 生长发育 水温 浮游幼体 |
| DOI： |
| 分类号: |
| 基金项目:大连市科委重点科研项目,881009号 |
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| INFLUENCE OF TEMPERATURE ON VARIOUS DEVELOPMENT STAGES OF THE SEA URCHIN, STRONGYLOCENTROTUS NUDUS A. |
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Gao Xusheng, Sun Mianying, Hu Qingming, Li Guoyou
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Marine Fishery Research Institute of Liaoning Province, Dalian 116023
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| Abstract: |
| The effect of temperature on sea urchin, Strongylocentrotus nudus A., development in the embryo, pluteus, young and adult stages was studied.
The test carried out in 1988 - 1990 at temperatures from 0°C to 30°C showed that the effect of temperature on sea urchin development is apparent in the above growth stages and that zygotes can not be divided normally at the temperature lower than 5°C or above 26°C as the suitable temperature for embryo development is 15 - 25°C. In the pluteus stage, it can not develop and metamorphosis normally at temperature lower than 15°C or above 24°C. It develops normally at nearly 20°C. The young sea urchin stage can not live at temperature lower than 0°C or above 30°C and the suitable temperature of growth is 16 - 22°C. The adult sea urchins were alive at 0°C, but the movement was very weak and the growth was slow; at 30°C they all died. The suitable temperature is 10 - 24°C. In the above growth stages the temperature adaptability of pluteus is the weakest and that ol the adult sea urchin is the strongest. |
| Key words: Strongylocenzrozus nudus, Development growth, Temperature, Pluteus |
