gsa17_18 Geographical Sub-Areas in the adriatic Sea according to the General Fisheries Commission for the Mediterranean (GFCM):- GSA 17 Northern Adriatic sea- GSA 18 Southern Adriatic sea - The vectors data have been edited starting from indications written in the table of "Geographical coordinates for GFCM Geographical Sub- Areas (GSAs) (GFCM, 2009)" features EPSG:4326 12.145112000000100 20.332225380671000 39.588910001350700 45.797302000000000 text/xml