Komando Çöpçü balığı (Corydoras paleatus Jenys, 1842) nın Üreme ve Larval Gelişiminin İncelenmesi
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Dosyalar
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Journal of FisheriesSciences.com
Erişim Hakkı
Özet
Bu çalışmada Komando Çöpçü Balığı (Corydoras paleatus Jenys,1842 )’nın üreme ve larval gelişimi incelenmiştir. Ondokuz Mayıs Üniversitesi Sinop Su Ürünleri Fakültesi Yetiştiricilik Ünitesinde yürütülen çalışmada, dişiler ortalama 5.625 ±0.125 cm, erkekler ise ortalama 4.875 ±0.125 cm büyüklüğe ulaştıklarında ilk defa üreme davranışı sergilemişlerdir. Soğuk su uygulamasını takiben üreme davranışı sergileyen balıklar T- pozisyonunu alarak yumurta bırakmaya başlamıştır. Bir üreme döneminde minimum 43 adet, maximum 168 adet yumurta bırakmışlardır. Yumurtalarını tamamen 3.5-4.5 saatte bıraktığı saptanan balıklarda, yumurta parti büyüklüğü (her partide bırakılan yumurta sayıları) minimum 4 adet, maximum 7 adet olarak tespit edilmiştir. Elde edilen yumurtaların, yumurta çapı ortalama 1.799 ±0.0214 mm, inkübasyon süresi 24 ±2°C ‘de minimum 96 saat, maximum 113 saat, ortalama 102 saat sürmüştür. Yumurtaların açılım oranlarının ortalama %87.115 ve anaçların yumurtlama periyotlarının ise 20-33 gün arası olduğu tespit edilmiştir. Yumurtadan çıkan larvaların toplam boyları, ortalama 4.5625 ±0.0147 mm, besin kesesi çapı, ortalama 2.603 ±0.0209 mm olarak ölçülmüştür. Larvalar dördüncü günden sonra besin kesesini tüketerek dışarıdan yem almıştır. Bu dönemde larva total boyu ortalama 7.5246 ±0.1085 mm olarak ölçülmüş ve bir aylık olan larvaların tüm yüzgeçlerinin ayrılması ve şekillenmeye başlaması ile ergin görünümü almaya başladıkları tespit edilmiştir.
In this study, reproduction and larvae development of Peppered Cory (Corydoras palaetus Jenys, 1842) of Callichthyidae were investigated. The study was carried out in the breeding unit of Sinop Fisheries Faculty on Ondokuz Mayıs University. Four couple mature of Corydoras paleatus was used. These fish started to show reproduction behavior while female fish reached minimum average of 5.625 ±0.125cm, wh ile male’s fish reached average of 4.875 ±0.125 cm. After the application of cold water process they showed reproduction behavior and took T-position and started to lay eggs. Minimum 43 eggs, maximum 168 eggs were laid in one reproduction period. Fish laid their eggs completely in 3.5-4.5 hours, eggs clutch size (the egg quantity of laying eggs in each period) were determined as minimum 4 eggs maximum 7 eggs. The egg diameter was obtained average as 1.799 ±0.0214 mm, incubation periods were carried on minimum 96 hours, maximum 113 hours and average 102 hours in 24 ±2 º C. The average hatching ratio of eggs was found % 87,115 and eggs laying period were determined as 20-35 days. After hatching mean total length of larvaes were measured as 4.625 ±0.0147 mm and mean vitellus’ diameter were 2.603 ±0.0209 mm. The larvaes have consumed their vitellus after fourth day and they started to take feed from outside. In this periodmean total length were measured as 7.5246 ±0.1085 mm and one month old larvaes to look like adult by separation of fins and changing of fins shape.
In this study, reproduction and larvae development of Peppered Cory (Corydoras palaetus Jenys, 1842) of Callichthyidae were investigated. The study was carried out in the breeding unit of Sinop Fisheries Faculty on Ondokuz Mayıs University. Four couple mature of Corydoras paleatus was used. These fish started to show reproduction behavior while female fish reached minimum average of 5.625 ±0.125cm, wh ile male’s fish reached average of 4.875 ±0.125 cm. After the application of cold water process they showed reproduction behavior and took T-position and started to lay eggs. Minimum 43 eggs, maximum 168 eggs were laid in one reproduction period. Fish laid their eggs completely in 3.5-4.5 hours, eggs clutch size (the egg quantity of laying eggs in each period) were determined as minimum 4 eggs maximum 7 eggs. The egg diameter was obtained average as 1.799 ±0.0214 mm, incubation periods were carried on minimum 96 hours, maximum 113 hours and average 102 hours in 24 ±2 º C. The average hatching ratio of eggs was found % 87,115 and eggs laying period were determined as 20-35 days. After hatching mean total length of larvaes were measured as 4.625 ±0.0147 mm and mean vitellus’ diameter were 2.603 ±0.0209 mm. The larvaes have consumed their vitellus after fourth day and they started to take feed from outside. In this periodmean total length were measured as 7.5246 ±0.1085 mm and one month old larvaes to look like adult by separation of fins and changing of fins shape.
Açıklama
Anahtar Kelimeler
Komando çöpçü, Corydoras paleatus, Embriyonik gelişim, Larval gelişim, Peppered cory, Egg development, Larvae development
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Ünal, H., Aral, O., 2007. "Komando Çöpçü balığı (Corydoras paleatus Jenys, 1842) nın Üreme ve Larval Gelişiminin İncelenmesi." Su Ürünleri Bilimleri.Com. Dergisi/ Journal of FisheriesSciences.Com.
