摘要：In this study,it was aimed to determine the nematocyst types and morphologies and the relationship between the bell diameters and nematocyst numbers of some scyphozoa species in 0X÷OD coasts,Turkey.Three scyphozoa species which are Cotylorhiza tuberculata (Macri,1778),Phyllorhiza punctata Lendenfeld,1884 and Chrysaora hysoscella (Linné,1766) were sampled in 0X÷OD coasts. Four different methods were experimented for nematocyst isolation but it was determined that the most effective method was the tissues were homogenized and then centrifuged.Four and seven nematocyst types were identified in C.tuberculata and P. punctata,respectively.Generally,euryteles were the most common nematocyst types in P.punctata and O-isorhizas were the dominant types in C. tuberculata samples.Five nematocyst types identified which were a-isorhiza,A-isorhiza,O-isorhiza, eurytele and polyspiras in C.hysoscella.In C.tuberculata,correlations between bell diameters and numbers of nematocyst types were found in Aisorhiza and O-isorhiza (r=0,95; r=0,39,respectively) in margins and in all nematocyst types except O-isorhiza in oral arms.In P.punctata,only correlation was found between the numbers of Oisorhiza and bell diameters (r= 0,53) in the margin. In oral arms,numbers of a-isorhiza and O-isorhiza were correlated with bell diameters (r=0,74,r=0,56, respectively).
