摘要
为减少滩涂养殖中的石油烃污染危害、提高水产品的品质,以珠江口滩涂红树林种植–养殖系统耦验示范研究基地A、B两系统的7个红树种植–养殖塘[包括桐花树（Aegiceras corniculatum）、木榄（Bruguiera gymnorhiza）、秋茄（Kandelia candel）、红海榄（Rhizophora stylosa）的单种或组合种植]为对象,采用荧光分光光度法监测了水体、底质及吊养的近江牡蛎（Ostrea rivularis）肉质的石油烃含量.结果表明,牡蛎体内石油烃含量在11.10~29.3 mg/kg之间;与水体中石油烃含量呈正相关（r=0.88）,牡蛎能很好地指示水体水质状况.单种或组合种植秋茄、桐花树、木榄、红海榄4种红树植物能有效降低水体石油烃含量,与对照相比降幅为50%~80%;使牡蛎的石油烃含量受到不同程度的影响,与对照相比,红树种植塘牡蛎石油烃含量降幅在20%~60%不等.木榄和桐花树种植塘中,牡蛎中石油烃平均含量分别为11.20 mg/kg、14.13 mg/kg,能达到无公害水产品标准.因此红树种植–养殖塘具有＂种植岛基质–红树植物–微生物＂的协同效应,通过物理、化学和生物的共同作用降低了水体石油烃的含量,从而提高了养殖生物的品质.
With the rapid development of marine transportation and oil storage industry,near shore petroleum hydrocarbon（PH） pollution has increased prominently.It is an urgent subject to delete PH pollution in beach aquaculture areas and improve the quality of aquatic products.Seven ponds in A and B systems of the mangrove plantation-aquaculture coupling systems,including single or mixed planting Aegiceras corniculatum,Bruguiera gymnorhiza,Kandelia candel and Rhizophora stylosa,were established in the Pearl River Estuary,China.Fluorescence spectrophotometry method was used to detect the PH contents in water,in sediment samples and in the tissues of oyster（Ostrea rivularis）.The results showed that the contents of PH in oysters was 11.10~29.3 mg/kg and positively correlated with that in waters（r = 0.88）,which suggested that oysters could be as a good indicator of water quality conditions.The different planting pattern（single or mixed plantation） decreased the PH contents in water by 50%~80% compared with CK,and decreased the PH contents in oysters by 20%~60% compared with CK.The average contents of PH in oysters in B.gymnorhiza and A.corniculatum ponds were 11.20 mg/kg and 14.13 mg/kg,respectively,which satisfied the pollution-free standards for aquatic products in China.Thus,the co-effects of the ＂Planting island matrix-mangrove-microorganisms＂ in the mangrove plantation-aquaculture ponds could reduce the PH contents physically,chemically and biologically,and enhance the quality of aquatic products effectively.
出处
《应用与环境生物学报》
CAS
CSCD
北大核心
2012年第3期432-437,共6页
Chinese Journal of Applied and Environmental Biology
基金
国家高技术研究发展计划("863计划")海洋技术领域重点项目资助(No.2007AA091703)~~
关键词
牡蛎
滩涂养殖
石油烃污染
红树植物
水体净化
种植–养殖耦合
珠江口
oyster
beach aquaculture
petroleum hydrocarbon pollution
mangrove
water purification
plantation-aquaculture coupling
Pearl River Estuary
