Sviluppo di un campionatore standardizzato per trawl survey

To date, trawl surveys were carried out along Italian coast by scientific team of GRUND using the local commercial trawls. The comparison of catch data required an intercalibration among the different fishing powers. A new standardized bottom sampler (STD/B) has been built and set during four trips in Adriatic and Tyrrenian Sea. In this paper its performance in different fishin grounds and depth and the catch results are reported.