Consumption of Scrippsiella lachrymosa Resting Cysts by the Eastern Oyster (Crassostrea virginica)

作者: Agneta Persson , Barry C. Smith

DOI: 10.2983/035.028.0227

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摘要: ABSTRACT Scrippsiella spp. resting cysts, unlike many other dinoflagellate possess an outer layer of calcite beneath which is a thin sporopollenin wall. This feature may affect cyst survival through the digestive tract benthic organisms, when they consume cysts. The extent digestibility related to degree grazing by organisms could influence population. To test consumption and digestion representative one grazer, eastern oyster (Crassostrea virginica) was fed culture-produced cysts lachrymosa under controlled conditions. Cyst recovery from no-oyster, control containers 97%; therefore, destruction be quantified as difference between added experimental containing oysters number intact recovered after period feeding. In each treatment, 18% were destroyed being ingested at c...

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