| 摘要: |
| 本研究以变态存活率、产卵量、成体头胸部长和体长为指标，研究了球等鞭金藻（Isochrysis galbana）和海洋原甲藻（Prorocentrum micans）不同浓度和配比对太平洋纺锤水蚤（Acartia pacifica）生长发育和产卵量的影响，以期探索培养太平洋纺锤水蚤最适合的饵料配方.实验结果表明：在饵料浓度（碳含量，下同）为1.70 μg/cm3，配比为2∶1时，其变态存活率最高，可达到92.62%；在饵料浓度为4.25 μg/cm3，配比为1∶2时，产卵量最高，雌体平均日产卵量可达47.1±2.7个；在饵料浓度为1.70 μg/cm3，配比为2∶1时，成体头胸部长和体长均最长，分别为932.9、1 252.3 μm.太平洋纺锤水蚤生长和发育的最优饵料组合为球等鞭金藻与海洋原甲藻浓度为1.70 μg/cm3，配比为2∶1. |
| 关键词: 海洋生物学 球等鞭金藻 海洋原甲藻 太平洋纺锤水蚤 生长 |
| DOI： |
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| 基金项目:厦门市海洋经济发展专项资金资助项目（14CZY042HJ16） |
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| Effects of concentration and ratio of two marine microalgae on the growth of Acartia pacifica |
| FU Cong,WU Lisheng,GUO Donghui,WANG Guizhong |
| (College of Ocean and Earth Science， Xiamen University， Xiamen 361102， China) |
| Abstract: |
| A series of experiments were conducted to evaluate the microalgal diets to the growth， development and reproduction of Acartia pacifica in order to define the most favorable diets for this species. It results that the concentration （carbon content, similarly hereinafter）1.70 μg/cm3， concentration rate 2∶1 induced highest metamorphosis survival rate （mean=92.62%）， the concentration 4.25 μg/cm3， concentration rate 1∶2 induced highest egg production （mean=47.1 egg·female-1·d-1）， the concentration 1.70 μg/cm3， concentration rate 2∶1 induced highest length of cephalothorax （mean=932.9 μm）， and the highest length of body （mean=1 252.3 μm）. The results suggested that concentration 1.70 μg/cm3， concentration ratio of 2∶1 is the optimal diet for the culture of Acartia pacifica． |
| Key words: marine biology Isochrysis galbana Prorocentrum micans Acartia pacifica growth |
