Studies on the Biology of Isognomon Alatus Gmelin (Bivalvia: Isognomonidae) with Notes on Its Potential as a Commercial Species
There is potential for development of Isognomon alatus as a commercial species. Its ability to live in bottom sediments and on suspended collectors, intertidally, and subtidally, in widely fluctuating conditions of salinity and suspended matter, allows it to grow in a variety of environments. The primary prodissoconch larva was identified by the “indirect method” and described. A high percentage of ripe gonads was present in the population throughout the year. Peak spawning periods occurred after the onset of the rainy season when salinity decreased. The presence of eggs and sperms in the water induced other individuals in the vicinity to spawn. Spatfall prediction is possible by monitoring salinity changes and larval concentrations in the water.
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Document Type: Research Article
Publication date: 1980-01-01
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