Indian Journal of Geo Marine Sciences Vol. 47 (04), April 2018, pp. 877-883 Distribution and ecology of prosobranch gastropods (mollusca) in the coastal waters of the north aegean sea (edremit bay-dardanelles) Mehmet Culha1* & Muharrem Emre Sahin2 1Department of Hydrobiology, Faculty of Fisheries, Izmir Katip Celebi University, Balatcık, Cigli, Izmir/Turkey 2Fisheries and Aquaculture division, Mugla Dırectorate of Provincial Food Agriculture and Livestock, Mentese, Mugla/Turkey *[E.Mail:
[email protected]] Received 08 June 2016; revised 04 October 2016 The highest number of species and individual is at Ayvalik station with a number of 29 species and 773 individuals, and the lowest number of species and specimens was recorded in Altinoluk with a number of 15 and 220, respectively. Yet, Bittium reticulatum is the most common species with 444 number of individuals and Alvania discors, Cerithiopsis pulvis, Clanculus corallinus, Galeodea echinophora, Scripta Mitrella are the least common type of species with a one individual for each one. Ecologies, distributions and seasonal comparisons of species; similarity analyses, physicochemical variables of stations and seasons; and index of diversity were also reported in the present study. [Keywords: Prosobranchia; Gastropoda; community structure; Edremit bay; Dardanelles] Introduction class Gastropoda (706 species), followed by Bivalvia In the Mediterranean Sea, benthic mollusk have (279 species), Cephalopoda (50 species), been used as descriptors of the sublittoral soft bottom Polyplacophora (17 species), Scaphopoda (10 benthic communities in association with their species), Caudofoveata (2species) and Solenogastres ecological relevance to water quality variations from (1species). Among the coasts of Turkey, the highest unpolluted to moderately and grossly polluted bays number of molluscan species was recorded from the with the impact of hypoxia and sedimentation linked Aegean Sea (825 species)5.