根据2006年3-11月在长江口进行的4个站点的潮间带鱼类调查结果,分析了该水域鱼类群落结构的时空变化特征.结果发现,潮间带鱼类共有55种,隶属20科.其中,鲤科鱼类最多,有18种,占总种数的32.7％；虾虎鱼科其次,有8种,占14.5％；石首鱼科4种,占7.3％.捕鱼港和东旺沙站点主要以斑尾刺虾虎鱼、鲻和棘头梅童等河口咸淡水鱼类为优势种；堡镇和绿化镇以油(鳖)、似鳊和鳊等淡水鱼类为优势种.通过优
以九段沙湿地生态系统中常见的无齿相手蟹为研究对象,分析了其体内重金属的积累和分布特性,结果表明：其体内重金属含量由大到小依次为Cu、Zn、Cd、Pb、Cr、As、总Hg,其重金属含量存在一定季节差异；对九段沙沉积物中的重金属含量分析表明,无齿相手蟹对Cu和Cd有一定的富集能力,适合做九段沙湿地Cu和Cd的指示生物；污染评价表明,本研究中无齿相手蟹均已受到Cu和Pb污染,部分受到Zn、Cd和Cr污染
One hundred and twenty randomly selected adult individuals from the same A.irradians concentricus cultured population were divided into 3 groups according to shell length:large group(shell length 4.91
A vaccine is a preventive tool used in a health management strategy for the control of infectious diseases in aquaculture.For more than 100 years,vaccines have proved to be an effective tool for preve
Biochemical composition and nutritional value in the muscle of wild-caught Dentex tumifrons in the East China Sea were determined,evaluated and compared with another three maricultured sparids,Acantho
Nowadays the important effect of artificial reefs was recognized among academic community on remediation of fishery environment,construction of marine ranching and stock enhancement.From 2003 to 2005,
Changes of sensory,chemical and microbiological properties,as well as bacterial flora in cultured tilapia(Oreochromis niloticus)during chilled storage at 0℃,5℃ and 10℃ were investigated.Total viable c
With the increased aquaculture production and the continuous expansion of the scale of aquaculture,deterioration of the environment,increased culture density and other factors lead to serious diseases
Biological filtration used in the recirculating aquaculture systems comprises mostly of nitrification process.The nitrification biofilter removes ammonia and nitrite by converts them to nitrate.Since
An aerobic bacterial strain C-14-1 was isolated from an acrylic fiber wastewater.The strain was found to belong to Nocardia sp.according to morphological,physiological and its 16S rRNA gene sequence.T