Seasonal Size Composition of Gelatinous Macrozooplankton in the Sinop Peninsula of Black Sea

Authors : Zekiye BİRİNCİ ÖZDEMİR, Eylem AYDEMİRÇİL, Pınar GÜRBÜZER

Pages : 50-54

Doi:10.33714/masteb.633867

View : 19 | Download : 5

Publication Date : 2019-12-31

Article Type : Research Paper

Abstract :In this study, size compositions of  Aurelia   aurita   insert ignore into journalissuearticles values(Linnaeus, 1758);,   Pleurobrachia pileus   insert ignore into journalissuearticles values(O. F. Müller, 1776); and   Mnemiopsis leidyi   A. Agassiz, 1865 were presented seasonally between March 2015 and February 2016 at the Sinop Peninsula of Black Sea. Sampling was carried out monthly at the 6 stations   by plankton net insert ignore into journalissuearticles values( 50 cm diameter mouth opening, 500   m m mesh size for horizontal tows, 210   m m mesh size for vertical tows); .   Small sized individuals of   A. aurita ,   M. leidyi   and   P. pileus   were found dominant in summer. Bigger size individuals were observed for   A. aurita   in spring,   M. leidyi   in winter, and   P. pileus   in autumn.   A. aurita   ˂ 4 cm was determined as 57%,   M. leidyi   ˂ 2 cm was 58% and   P. pileus   ˂   0.6 was determined as 67%. Maximum and minimum lengths were measured 28 cm and 0.5 cm for   A. aurita , 2 cm and 0.2 cm for   P. pileus , 9 cm and 0.2 cm for   M. leidyi,   respectively. The size distribution of   A. aurita, M. leidyi   and   P. pileus   showed significantly different insert ignore into journalissuearticles values(ANOVA, p ˂ 0.05); between seasons.
Keywords : Black Sea, Aurelia aurita, Mnemiopsis leidyi, Pleurobrachia pileus, Size composition