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*海蜇(Rhopilema esculenta)浮浪幼虫及早期螅状体摄食行为的研究*
刘春胜¹, 邹安革², 庄志猛¹, 陈四清¹, 王相杰³, 王绍军³, 燕敬平¹, 李旭⁴, 刘长琳¹
1.中国水产科学研究院黄海水产研究所;2.山东安源水产股份有限公司;3.山东省海洋捕捞生产管理站;4.扬州大学

摘要:

采用对比实验与显微观察的方法, 对海蜇浮浪幼虫及早期螅状体的摄食行为进行了研究。结果表明, 海蜇浮浪幼虫期不摄食外界食物; 浮浪幼虫附着变态发育成海蜇螅状体1d后, 开始摄食其它浮浪幼虫, 螅状体发育到第3天摄食能力迅速增强, 能够捕食卤虫无节幼体。海蜇早期螅状体的捕食实验结果表明, 早期螅状体开始捕食主要受两方面影响, 一方面是口的发育, 另一方面是刺细胞的发育。

关键词: 海蜇, 浮浪幼虫, 螅状体, 摄食

DOI：10.11693/hyhz201203021021

分类号:

基金项目:国家重点基础研究发展计划(973)项目, 2011CB403605 号; 中国水产科学研究院黄海水产研究所基本科研业务费专项资金l项目专项资金项目, 20603022011008 号; 青岛市科技计划项目, 11-3-1-6-hy 号

STUDY ON PREDATION BEHAVIORS OF PLANULA AND NEWLY METAMORPHOSED POLYP OF RHOPILEMA ESCULENTA

LIU Chun-Sheng¹, ZOU An-Ge², ZHUANG Zhi-Meng¹, CHEN Si-Qing¹, WANG Xiang-Jie³, WANG Shao-Jun³, YAN Jing-Ping¹, LI Xu⁴, LIU Chang-Lin¹

1.Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences;2.Shandong Anyuan Fishery Limited Corporation;3.Shandong Marine Fishing and Production Management Station;4.Yangzhou University

Abstract:

Predation behaviors of planula and newly metamorphosed polyp of Rhopilema esculenta were studied by comparative experiments and microscopic observation. Planula did not ingest before metamorphosis into a polyp. The polyp could prey on planula one day after metamorphosis, predation ability quickly increase after three days, and could feed on Artemia nauplii. On the basis of the study on polyp predation behavior, we found that the development of mouth and cnidoblast were two key factors influence the feeding behavior of planula and newly polyp of R. esculenta.

Key words: Rhopilema esculenta, Planula, Polyp, Predation

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