GSA 18, located in the southern part of the Adriatic Sea, extends on an area of 29008 km². The MEDITS survey has been carried out since 1994 in the western side of the area, while on the eastern side the survey started in in 1996 along the Albanian coasts and in 2008 in the Montenegrin area. It was conducted primarily during the second quarter of the year, with a sampling intensity of about 90 hauls per year. On years 2020 and 2021 the survey was not conducted on the eastern waters, where the survey is carried out under the GFCM umbrella. The survey was not carried out in 2022 in the whole GSA.