The External abnormalities of hatchery-reared Black Sea flounder (Platichthys flesus luscus pallas, 1814) in Turkey

Bu çalışma kuluçkahanede yetiştirilen Karadeniz pisi balığında (Platichthys flesus luscus Pallas, 1811) görülen dış anormallikleri tanımlamak için yapılmıştır. Çalışmada toplam 2187 genç birey incelendi. Aşağıda belirtilen anormalliklerden bir veya birden fazlası 888 bireyde saptanmıştır; ters (sinistral), kusurlu çene, tamamlanmamış göz göçü, renk bozukluğu. Ortalama toplam boy ve ağırlık değerleri anormal bireylerde normal bireylerden oldukça düşük gerçekleşmiştir (P

Anahtar Kelimeler:

Platichthys flesus, Karadeniz, pisi balığı, Türkiye, anormallikler

Türkiye’de kuluçkahanede yetiştilen Karadeniz pisi balığında (Platichthys flesus luscus Pallas, 1814) görülen dış anormallikler

This study was designed to describe the occurence of external abnormalities in Black Sea flounder (Platichthys flesus luscus) reared in captivity. In the present study, a total of 2187 juvenile fish were examined. Eight hundred eighty eight Platichthys flesus luscus had one or more of the following conditions: reversed (sinistral), malpigmentation, malformed jaw, incomplete eye migration. Average total length and body weight of abnormal juveniles were significantly lower than that of normal juveniles (P < 0.01). During the intensive rearing of flounder, upper jaw deformities (55%) were the most commonly observed types of deformation. Aproximately 1.9% of deformed juveniles had incomplete eye migration which acquired the lowest total length and body weight. More than half (54.9%) of the individuals analyzed showed more than one deformity.

Keywords:

Platichthys flesus, Black Sea, flounder, Turkey, abnormalities,

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