Monaco nell'Otto-Novecento in Atlante della letteratura tedesca

Struttura di popolazione di Haliotis tuberculata in aree soggette a diversi livelli di protezione

This study aims at evaluating the current status of H. tuberculata stocks in exploited areas of western Sicily. The density of the green ormer was slightly greater in unexploited areas although differences between harvested and not harvested areas was not statistically significant. Moreover, analyses showed that length frequencies varied between harvested and not harvested areas.