Serpil SERDAR, AYNUR LÖK

Rotifer (Brachionus plicatilis Müller,1786) kültüründe kış yumurtası oluşumu üzerine sıcaklığın etkisi

Bu çalışmada rotiferlerin Brachionus plicatilis kış yumurtası üretimi üzerine farklı sıcaklıkların etkisi araştırılmıştır. Deneme öncesinde stok rotiferler 30°C'de ve %o 20 tuzlulukta 10 gün boyunca Chlorella sp., ile beslenmişlerdir. Her bir deneme grubu rotiferler %o 20 tuzlulukta dört farklı sıcaklıktaki (18°C, 25°C, 30"C, 33°C) cam şişelere 25±5xl03/0.3 it yoğunlukta olacak şekilde ekilmiştir. Deneme sonunda 33°C'de 9050 adet kış yumurtası .elde edilmiştir. 33°C diğer sıcaklıklardan istatistik! açıdan önemli farklılıklar göstermiştir(P

Anahtar Kelimeler:

kültür balığı, balık yumurtası, yumurtadan çıkmak, Rotifera, sıcaklık, iklim faktörleri

Effects of temperature on resting egg formation in the rotifer (Brachionus plicatilis Müller,1786) culture

Effects of temperature on resting egg formation in the rotifer (Brachionus plicatilis Müller, 1786) culture. In this study, the effect of different temperatures on resting egg production of the rotifer Brachionus plicatilis was investigated. Prior to the experiments, stock rotifers were fed on Chlorella sp., at 30°C and 20%o salinity for ten days. For each experimental groups, rotifers were inoculated at a density of 25±5xl OV0.3 It in glass bottles at four temperatures (18°C, 25°C, 30°C, 33°C) and 20%o salinity. At the end of experiments 9050 resting eggs were obtained at 33°C. The temperature of 33°C was significantly different than other temperatures (P<0.05).

Keywords:

fish culture, fish eggs, hatching, Rotifera, temperature, climatic factors,

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