Technical and mechanical analysis of the operation of the Gri-Gri fishing bear in Greece. The objectives of the project are: The mechanical and geometrical study if the operational use of the fishing gear “gri-gri” in order to prove the true impact of the gear on the sea bottom, if any, given its height and other geometrical characteristics in order to evaluate the true effects of the gear on the demersal stocks as well as the effects of the policies in the recent regulation for the Mediterranean for the segment based on the loss of fishing grounds, the increase of fishing costs and the loss of income.