Preprint volume - SIBM

Pre-print Volume - Posters
Topic 1: BIODIVERSITY AND CONSERVATION SCIENCE: CONTRIBUTING TO MANAGEMENT
Fig. 1 - Location of the investigated areas and Shannon’s index trends.
Localizzazione delle aree investigate e trends del’indice di Shannon.
Conclusions – The use of biodiversity indexes as an instrument for assessing marine
resources is a subject of continued debate (Ungaro et al., 1998).
Our analysis on biodiversity, based on data from 14 annual trawl surveys, showed
different temporal trends in the 8 areas considered. The varying intensity of
exploitation described, enabled us to identify the effects that such disturbance has had
on biodiversity, both positively correlated with fishery yield (Ungaro et al., 1998;
Worm et al., 2006).
According to our results evaluation of biodiversity trend evolution, allow us to detect
environmental modifications that otherwise would pass unnoticed. Although further
investigations are necessary, biodiversity indexes could be an important support to
classical stock assessment methodologies.
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41 st S.I.B.M. CONGRESS Rapallo (GE), 7-11 June 2010
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