拟穴青蟹土池育苗池塘中浮游植物的群落特征  

Structure of Phytoplankton Community in Seedling Pond of Scylla paramamosain

作　　者：王扬才 金中文 柳海 吴仲宁 孙元 

机构地区：[1]宁波市海洋与渔业研究院,浙江宁波 [2]宁波市鄞州区渔业技术管理服务站,浙江宁波

出　　处：《水产研究》2018年第4期181-187,共7页Open Journal of Fisheries Research

基　　金：浙江省宁波市科技局农业重大项目(2016c11003)。

摘　　要：本研究利用11口池塘开展拟穴青蟹(Scylla paramamosain)池塘生态育苗生产试验。通过池塘浮游植物调查,分析了浮游植物的种类组成、丰度、优势种、多样性及群落结构在不同蟹苗产量的池塘中的差异。共鉴定浮游植物6门42属62种,细胞丰度在1.60 ×104~3.84 ×108 cell/L之间,其中绿藻门细胞丰度占绝对优势。微绿球藻(Nannochloropsis oculata)是养殖过程最主要的优势种。池塘初始浮游植物丰度、多样性指数与群落结构在不同蟹苗产量的池塘有明显差异,产量较高的池塘浮游植物丰度高,微绿球藻的优势突出,物种多样性较低。而养殖中、后期这种差异不明显。生产结果表明,育苗池早期适口的饵料浮游植物种类及充足的细胞丰度是青蟹土池育苗过程中非常重要的因素。The experiment of the ecological seedling production of the Scylla paramamosain has been carried out in 11 ponds. Phytoplankton composition, abundance and community structure were investi-gated to analyze its difference in ponds with different seedling output. 62 taxa of phytoplankton were identified from 6 phyla and 42 genera. The cells abundance of phytoplankton varied from 1.60 ×104 cell/L to 3.84 ×108 cell/L, and was dominated by Chllorophyta. The dominant species comprised mainly of Nannochloropsis oculata. The initial phytoplankton abundance, diversity index H and community structure were significantly different between good and bad in seedling output, but not different in middle and later ones. There were more initial phytoplankton abundance, higher dominant Y of Nannochloropsis oculata and smaller diversity index H in the ponds with good seedling output. The results show that the proper phytoplankton species and plenty cell abundance in initial phase are important in seedling of Scylla paramamosain in pond.

关 键 词：青蟹 池塘育苗 浮游植物 群落特征 

分 类 号：S9[农业科学—水产科学]