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Distribution and abundance of the species Holothuria tubulosa Gmelin, 1788 and Holothuria forskali Delle Chiaje, 1823 (Holothuria, Echinodermata) in the Adriatic Sea

The data on the qualitative and quantitative distribution of the species Holothuria tubulosa and Holothuria forskali as affected by bottom types and depth are presented. The material originates from the continental shelf of the Adriatic Sea collected during PIPETA research cruises. Biological material was collected with bottom trawl from the Italian commercial trawler PIPETA in the 1982-1995 period. For the estimate of the abundance of the species Holothuria tubulosa and Holothuria forskali standard "swept area" method was used. The total mass and the number of individuals of these species were obtained from 833 hauls (21 cruises) of the bottom trawl over a surface area of 39808.191 km2 of the Adriatic bottom. Obtained results are indicative of the fact

Holothuria tubulosa; Holothuria forskali; Adriatic Sea; distribution; abundance

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