Untitled - CNR

Marine research at CNRcially extinct. In light of these results, aneffective control of fishing effort and activeenforcement of existing rules regardingthe characteristics of C. gallina dredgesand sieving equipment are deemed fundamentalto maintain this ‘high-tech’ fishery;but over and above this it is especially importantthat the stock be assessed, via surveys,at least yearly. The rotational natureof the fishery and the occurrence of massmortalities, make it very difficult to followa cohort through time, especially on an annualbasis. This could be remedied by carryingout more surveys in one year, Marrset al. [18] suggest two, so as to gain a morerealistic quantification of the two sourcesof both fishing and natural mortality.1915