The Study of the Existing Interactions between the Wild Fish and the Farming Sea Cages of Marine Aquaculture in the Bay of Vlora


1Departament of  Aquaculture and Fisheries, Faculty of Agriculture and Environment, Agricultural University of Tirana, Koder- Kamez, Tirane, Albania.

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Marine aquaculture in Albania is also becoming a considerable factor for the recent social and economic developments. The aim of this study is the evaluation of the wild fish abundance and biomass close to one of the marine aquaculture farms in the Bay of Vlora, though these studies are rare in the Mediterranean basin. The accumulation of the wild fish close to the fish farms is happening on spatial and temporal scales and the relative structure could be subject to variations in the species presence. The abundance and the dimensions structure of the wild fish species close to a sea cage farm was evaluated and later compared to the control areas near the farm. The Alb-Adriatico 2013 farm is located about 100-350 m from the rocky coast of Bay of Karaburun (Vlorë), where gilthead seabream (Sparus aurata) and European seabass (Dicentrarchus labrax) are growing inside the 40 sea cages. The accumulation of the fish was evaluated by using visual registrations and doing underwater photos. The relative species composition showed to be different in the composition between the control area and the sea cages farm, where it was registered the presence of 11 wild fish species close to the sea cages and none of them in the control area. The most abundant species families were represented by Sparidae, Pomacentridae and Mugilidae.

Keywords: Visual registrations; Adriatic Sea, Bay of Karaburun.