| 摘要: |
| 对多齿围沙蚕(Perinereis nuntia Savigny)亲体的培养条件进行了研究。结果表明：多齿围沙蚕的适宜培养温度为16～32℃，盐度为25～32。培养时以粉末饵料为佳，16～32℃摄食活泼，摄食时间为15～20 min，16℃以下摄食量减少，12℃以下基本不摄食。在19～20℃、保持潮湿条件下，可存活28d。异沙蚕体形成与温度有关，特别是在经历了一定的低温期(2～4℃)后，再提高温度至18～25℃，可以有效地促进异沙蚕体形成。在人工养殖情况下，异沙蚕体的形成及群浮并未出现半月相型规律，成熟后只要有微弱的光照，任何时间加水覆盖水槽均可见到异沙蚕体群浮。
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| 关键词: 多齿围沙蚕Perinereis nuntia Savigny 亲体培育 生态条件 |
| DOI： |
| 分类号: |
| 基金项目:山东省自然科学基金资助项目（Y2006D29） |
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| Parent culture of the Perinereis nuntia Savigny |
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DU Rong-bin,WANG Ai-min,LI Deng-lai,ZHENG Jia-sheng,SONG Zhen-li,YU Shan-qing
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| Abstract: |
| The ecological conditions of parent culture of Perinereis nuntia Savigny were studied. The results show: that the optimal temperature range for parent culture is 16～32℃, and the salinity is 25～32. Perinereis nuntia Savigny ingested food lively within the temperature of 16～32℃, the feeding time was 15～20 min, and powder food is the best for parent culture. Food intake reduced when the temperature was below 16℃, and no food was ingested generally below the temperature of 12℃. It could survive for 28 days under humid conditions in the temperature range of 19～20℃. The appearance of heteronereis is related to temperature, especially after a period of relatively low temperature, and the quantity of heteronereis increase evidently with temperature increased to 18～25℃. Under artificial cultivation circumstances, the appearance of heteronereis and the swarming behaviour did not show a semiluar phase law. For the mature individuals, if only there is weak illumination, the heteronereis will swarm at every time with the sink being full of water.
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| Key words: Perinereis nuntia Savigny parent culture ecological conditions |
