文章摘要
何进金,韦信敏.菲律宾蛤仔稚贝食料和食性的研究[J].水产学报,1984,8(2):99~106
菲律宾蛤仔稚贝食料和食性的研究
A STUDY ON FOOD AND FEEDING HABIT OF THE CLAM SPAT
  修订日期:1992-06-01
DOI:
中文关键词: 拖网渔船|经济性估计
英文关键词: 
基金项目:
作者单位
何进金 国家海洋局第三海洋研究所 
韦信敏 国家海洋局第三海洋研究所 
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中文摘要:
      本文叙述了在室内控制条件下,摄食底栖硅藻和几种浮游单细胞藻的菲律宾蛤仔稚贝的生长速度和存活率。结果表明,稚贝不论是摄食底栖硅藻还是摄食浮游单细胞藻都能正常生长,只是摄食不同种类的饵料生长速度不同而已,其中以摄食底栖硅藻和角毛藻、湛江叉鞭藻和角毛藻的混合投喂效果最佳。稚贝摄食这些饵料,不但生长快(分别为33.7微米/日和29.2微米/日),而且存活率高(80%左右)。除要注意选择适宜的饵料种类外,饵料的投放密度也不可勿视。在稚贝的培养中,所投饵料的适宜密度应控制在2.5—5万个/毫升(混合饵料各一半)。本文还论述了底栖硅藻和冷冻扁藻混合投喂也能获得较满意结果,但比上述最佳的混合饵料的效果差。
英文摘要:
      A study of food and feeding habits of spats and larva of the clam (Ruditapesphilippinarum) was carried out by feeding with planktonic and benthic uni-cellularalage. Results of the experiment are as follows:1. The spare feeding on unicellular algae used in the experiment grew normally.Among them, those feeding on mixed food of benthic diatom and Chaetocerous sp. grewfaster (33.7 micron per day) with higher suvrival rate (ca. 80%) than-the spatsfeeding on other kinds of food.Another mixed food of Dicxateria zhanjingensis and Chaetoceros sp.also gaveideal results with spat growth rate of 29.2 micron per day and survival rate about80%.2. The density of food organism is an importat factor to the growth of spats.Experments show a food density of 25,000--50,000 individuals per millilitre is com-paratively suitable for culturing of spats no matter the food is single or mixed.3. Platymonas sp. is very active whan lives and is not easy for the bottom-livingspats to catch. So, that frozen and heated Platymonus sp. were used in our experi-ment. The results show frozen Platymonus gave better result.4. Although suitable food might increase the survival rate of spats of the clam,yet there are another factors affecting its survival rate such as temperature and salin-ity and the effects of bottom soil should also be considered.
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