海洋科学2016，Vol.40Issue(8)：10-17,8.DOI:10.11759/hykx20140116001
盐度对长江口3种滤食性贝类滤水率、摄食率、同化率的影响
Effects of salinity on filtration, ingestion, and assimilation rates of three filter-feeding bivalves in the Yangtze River estuary
摘要
Abstract
Theeffects of salinity on the filtration, ingestion, and assimilation rates of three filter-feeding bivalves in the Yangtze River estuary were evaluated using indoor experimental ecological methods. Groups ofSinonovacula constricta andPotamocorbula laeviswere each set up in six salinity grids (5, 10, 15, 20, 25, and 30), and Corbicula flumineawas set up in different six salinity grids (0, 5, 10, 15, 20, and 25). The biological parameters of these bi-valves were measured. The results showed that their filtration, ingestion, and assimilation rates increased with in-creasing salinity, reaching peak levels when the salinity increased to a certain point, then dropped following in-creasing salinity. The filtration, ingestion, and assimilation rates ofS. constrictareached peak levels at a salinity of 20, giving values of 0.57 L/h, 5.38 mg/h, and 0.72%, respectively. The filtration and assimilation rates ofP. laevis reached peak levels at a salinity of 10, giving values of 0.46L/h and 0.53%, respectively, and the ingestion rate reached a peak level of 3.80 mg/h at a salinity of 15. The filtration and ingestion rates ofC. fluminea reached peak levels at a salinity of 15, giving values of 0.39 L/h and 2.48 mg/h, respectively, and the assimilation rate reached a peak level of 0.51% at a salinity of 0 and dropped following increasing salinity. The above results indicate that sa-linity has a large impact on the three feeding physiology indexes of the three filter-feeding bivalves.关键词
滤食性贝类/滤水率/摄食率/同化率/盐度Key words
filter-feeding bivalves/filtration rate/ingestion rate/assimilation rate/salinity分类
农业科技引用本文复制引用
吕昊泽,刘健,陈锦辉,沈和定,吴杨平..盐度对长江口3种滤食性贝类滤水率、摄食率、同化率的影响[J].海洋科学,2016,40(8):10-17,8.基金项目
上海市长江口中华鲟自然保护区项目(沪鲟保科20090826001)@@@@Shanghai City, the Yangtze River Estuary Sturgeon Nature Reserve Project, Shanghai Branch sturgeon Acipenser sinensis20090826001。 （沪鲟保科20090826001）
