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Article: New marine biology study findings have been reported by D.G. Gil and colleagues.
- Article from:
- Ecology, Environment & Conservation
- Article date:
- July 24, 2009
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According to recent research from Comodoro Rivadavia, Argentina, "The reproductive cycle of the sub-Antarctic spatangoid sea urchin, Abatus cavernosus, was examined during a 2-year period in southern Patagonia, Argentina. The population studied is the northernmost known coastal population in the austral oceans, and is influenced by a greater annual range of seawater temperature than other Abatus species."
"The sex ratio of the overall A. cavernosus population did not differ significantly from 1:1, but was not homogeneous across size classes. A clearly defined annual reproductive cycle was found. Spawning occurred from May to July and was synchronous between sexes. ...