Record Details


Field	Value

Title	Effects of acidification of meroplanktonic oyster settlement in a tropical estuary Not Available

Creator	Jenni,B Chinnadurai,S Khambadkar,L R Prema,D Mohamed,K S Kripa,V

Subject	Oyster culture Spat settlement Acidification Tropical estuary

Description	Not Available Monthly variations in salinity, temperature and pH were studied in relation to settlement of meroplanktonic oyster larvae on cultches in Vembanad Lake, a tropical estuary along the southwest coast of India. A strong correlation between monthly pH values and oyster spat density (P=0.002) was evident. When the pH values in the estuary were low, the spat settlement density was poor (4.5/cultch), which was nearly half of the value (7.8/cultch) when the pH was alkaline. Experiments were conducted to evaluate the effects of extremes of temperature (20 to 35oC) and pH (6.5 to 8.5) on metamorphosis and survival of oyster larvae. In pH 6.5 there was 100% mortality and complete dissolution of dead shells in 24 h. Survival was highest (81%) in the control temperature of 27oC and less than 50% in 25 and 20oC. Treatment-wise differences in survival were significant (P Not Available

Date	2021-09-17T04:07:09Z 2021-09-17T04:07:09Z 2014

Type	Article

Identifier	Not Available Not Available http://krishi.icar.gov.in/jspui/handle/123456789/63493

Language	English

Relation	Not Available

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