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文献详情 >龙须菜在鱼藻混养系统中的生态功能 收藏

龙须菜在鱼藻混养系统中的生态功能

ECOLOGICAL FUNCTION OF GRACILARIA LEMANEIFORMIS IN FISH AND SEAWEED POLYCULTURE SYSTEM

作     者:胡海燕 卢继武 周毅 杨红生 

作者机构:中国科学院海洋研究所 

出 版 物:《海洋科学集刊》 (Studia Marina Sinica)

年 卷 期:2003年第1期

页      面:169-175页

学科分类:0908[农学-水产] 09[农学] 

基  金:中国科学院知识创新工程项目KZCX2403 211号 国家基础研究规划资助项目G1999012012号 山东省科技攻关课题"浅海鱼藻混养技术" 

主  题:特定生长率 食物转化 养殖池 鱼类养殖 大型海藻 投饵 养殖密度 Chla 颗粒有机碳 大型藻类 

摘      要:Rapid growth of marine fish farming often leads to adverse impacts on the environment, especially the release of dissolved nutrients which may cause *** an ecological treatment solution, large seaweeds can be used to get rid of the excess nutrients while obtaining higher output.A setup consisting of six 3m3 tanks(one with neither fish nor seaweeds, others with or without seaweeds) was used to investigate ecological function of polyculture of fish and *** the experiment period was spring, Gracilaria lemaneiformis grew well even in the low nutrient environment; and had average specific growth rate(SGR) of 4.05% in the four polyculture tanks, with the highest one (4.5%) in the #4 *** addition, except the # 3 tank,*** had competitive advantage over phytoplankton after a period of *** the same time, most of the dissolved nutrients(NO 3-N,NO 2-N,NH 4-N,PO 4-P)in the polyculture tanks were removed as the enviromental dissolved inorganic nutrients(DIN) were much lower than those of the tank without ***, whose average content was 2.53 μmol/*** order to achieve good water quality as well as high production, carrying capacity has to be considered according to existing system and *** this experiment, 1∶1 co-culture of *** and Sebastodes fuscescens yielded good results.

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