Abstract
The suitability of a sea urchin population for commercial harvesting and culturing depends on the timing and duration of the spawning season. Pilot studies have shown that the New South Wales echinoids produce mature gonads for several months. Investigations were made into the influence of those exogenous factors which could be modified under aquacultural conditions. Temperature and food appeared to affect gonad (roe) development, while depth and density did not. The relationship between macro and micro changes in the gonads was established and methods of estimating stages of gametogensis were compared.
Published Version
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