| 摘要: |
| 研究6种饵料微藻:微绿球藻(Nannochloropsis oculata)、小球藻(Chlorella.sp)、球等鞭金藻(Isochrysis galbana)、三角褐指藻(Phaeodactylum tricornutum)、亚心形扁藻(Platymonas subordi-formis)、中肋骨条藻(Skeletonema costatum)对双刺纺锤水蚤(Acartia bifilosa)雌体繁殖的影响,以探索适合培养双刺纺锤水蚤的藻类。应用解剖镜下计数方法对雌体存活率、产卵率、孵化率、排粪率几个指标进行检测。结果表明微绿球藻、小球藻和球等鞭金藻明显不适于用作雌体饵料;中肋骨条藻组产卵率最高,亚心形扁藻和三角褐指藻组的产卵率没有显著差异;亚心形扁藻组的排粪率明显低于中肋骨条藻和三角褐指藻组;摄食三角褐指藻的雌体所产的卵其平均孵化率要显著低于亚心形扁藻和中肋骨条藻;亚心形扁藻组雌体的产卵率尽管较中肋骨条藻组低,但却保持最高的雌体存活率,而且排粪率也要比中肋骨条藻低得多。综合比较得出结论:6种饵料微藻中,亚心形扁藻和中肋骨条藻是两种最适宜培养双刺纺锤水蚤雌体的优良饵料,二者混合使用效果会更好。 |
| 关键词: 双刺纺锤水蚤 单胞藻 繁殖 生长表现 |
| DOI：10.11693/hyhz200806011 |
| 分类号: |
| 基金项目:国家自然科学基金重点项目,“黄东海浮游动物优势种种群动态变化机制”,40631008号;国家重点基础研究发展计划973项目“我国近海生态系统食物产出的关键过程及其可持续机理”课题“浮游动物功能群在食物生产中的调控作用”,2006CB400606号;国家自然科学基金项目“黄海桡足类-硅藻相互作用”,40576070号 |
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| DIFFERENT UNIALGAL DIETS AFFECT THE REPRODUCTION OF ACARTIA BIFILOSA |
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ZHANG Zhan1,2,3, SUN Song1, LI Jie4, TAO Zhen-Cheng1,2
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1.Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071;2.The Graduate School, Chinese Academy of Sciences, Beijing, 100049;3.Ocean University of China, Qingdao, 266003;4.Qingdao Technological University, Qingdao, 266033
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| Abstract: |
| Optimal unialgal diet for copepod Acartia bifilosa female was searched on samples collected from Jiaozhou Bay, China. The copepod is an important food source for larvae fish as a potential diet species in aquiculture. Six algae species were tested: Nannochloropsis oculata, Chlorella sp., Isochrysis galbana, Phaeodactylum tricornutum, Platymonas subordiformis and Skeletonema costatum, for the relationships with the survival, growth, egg production and hatching rate of the copepod. Feeding with Skeletonema costatum yielded the best egg production, followed by Platymonas subordiformis and Phaeodactylum tricornutum. In average pellets production, the order of performance was Skeletonema costatum > Phaeodactylum tricornutum > Platymonas subordiformis, while that in average hatching rate was Skeletonema costatum > Platymonas subordiformis > Phaeodactylum tricornutum. Therefore, Platymonas subordiformis and Skeletonema costatum are two best unialgal diets for Acartia bifilosa females. |
| Key words: Acartia bifilosa, Unialgal diet, Reproduction, Growth performance |
