Author/Authors :
İlhan, Ali Ege Üniversitesi - Su Ürünleri Fakültesi - Su ürünleri Temel Bilimler Bölümü, İçsular Biyolojisi Anabilim Dalı, Turkey , Sarı, Hasan M. Ege Üniversitesi - Su Ürünleri Fakültesi - Su ürünleri Temel Bilimler Bölümü, İçsular Biyolojisi Anabilim Dalı, Turkey , Şahin, Mutlu Ege Üniversitesi - Su Ürünleri Fakültesi - Su ürünleri Temel Bilimler Bölümü, İçsular Biyolojisi Anabilim Dalı, Turkey
Title Of Article :
Reproductive biology of Gibel Carp (Carassius gibelio (Bloch, 1782)) population in Marmara Lake (Manisa)
Abstract :
The aim of the study was to detemine, the reproductive biology of gibel carp (Carassius gibelio) population in Marmara Lake, which is one of the exotic and invasive fish species in Turkish inland waters. Samples were monthly collected by using trammel net and gill net in different mesh sizes from March 2012 to February 2013. The total length and weight of 1058 fish individuals were ranged from 10.0 to 27.5 cm and from 17.1 to 27.5 g, respectively. Additionally, female:male ratio was 1: 0.31. Gonadosomatic Index (GSI) values were calculated by monthly for the detection of reproductive period. Accordingly, breeding activities of the species was intensively found to take place between March-May in Marmara Lake. According to determination of 117 female gonads, the total number of eggs were ranged from 3.237 to 84.724. Egg diameters also ranged from 0.18 to 1.63 mm.
NaturalLanguageKeyword :
Cyprinidae , egzotic species , invasive species , gonadosomatic index
JournalTitle :
Ege Journal Of Fisheries and Aquatic Sciences
