ABNORMALITIES IN THE WEDGE SOLE Dicologlossa cuneata (MOREAU, 1881) AND BLACK SEA TURBOT Scophthalmus maeoticus (PALLAS, 1814) FROM TURKISH SEAS

Abstract

Abstract:Both color and morphological abnormalities on two different flatfish species [Dicologlossa cuneata (Moreau, 1881) and Scophthalmus maeoticus (Pallas, 1814)] have been recorded from Turkish seas. Abnormal flatfish species, Dicologlossa cuneata (Moreau, 1881), wedge sole, was sampled from two different localities in Aegean sea. First wedge sole from Izmir bay (Aegean sea) had three different colour abnormalities (ambicoloration; albinism and xanthochroism) on eyed and blind sides of their body. Other abnormal wedge sole specimen from Ekincik cove (Aegean sea) had ambicoloration on blind side of the body. Second abnormal flatfish species Scophthalmus maeoticus (Pallas, 1814), Black sea turbot, was caught from the Black sea coast of Istanbul and the specimen had totally ambicolored (blind side of the body was colored as like as eyed side) and morphological abnormalities (a fleshy piece-hook-above the head).

The First Occurrence of Xanthochromic Fish, Diplodus sargus (Family: Sparidae) in the Eastern Mediterranean

“…To date, there are several studies of xanthochromic fish species in the Mediterranean waters. These species are reported from coastal waters of Turkey (Akyol & Şen, 2012;Tokaç et al, 2013;Ulutürk et al, 2015), Nature Park Lastovo archipelago, eastern Adriatic Sea (Stagličić et al, 2019) and Israel (Golani et al, 2019). Golani et al (2019) reported in this study, xanthochromic two demersal species: Epinephelus marginatus from the Israeli coasts of the Mediterranean Sea and D. vulgaris from the Lipsi, Dodecanese, Aegean Sea (Greece).…”

Abnormalities in flatfishes of the south‐west Atlantic Ocean

“…Causes of flatfish abnormalities have been treated or hypothetized by different authors (Gudger & Firth, ; Dawson, ; Bolker & Hill, ; Ulutürk et al, ). Effects of light (Houde, ), food levels and temperature (Shelbourne, ; de Veen, ) and availability of suitable substratum (Stickney & White, ) have been proposed as possible causes of abnormalities in flatfishes.…”

Anomalous colouration of a starry weever, Trachinus radiatus (Actinopterygii: Perciformes: Trachinidae), from the Adriatic Sea

“…The majority of marine records originated from the Atlantic and fewer of them from Pacific regions. Geographically the closest reports of other xanthochroic cases are from Aegean Sea by Akyol and Şen (2012) who described a specimen of common sole, Solea solea, with partially ambicolorated, xanthochroistic, and albinistic features, while Ulutürk et al (2015) also found all three different types of colour anomalies on a single specimen of the wedge sole, Dicologlossa cuneata (Moreau, 1881). To date, no case of malpigmentation has been documented for a species of the family Trachinidae.…”

“…Previous reports of xanthocroic fish include a wide taxonomic array of species both marine and freshwater. For illustration, this condition has been reported for marine fish families such as Carangidae (see Jawad and Ibrahim 2018), Pomacentridae (see Palacios-Salgado and Rojas-Herrera 2012), Serranidae (see Moe 1963, Schwartz 1978, Smith and Bullock 1979, Nemtzov et al 1993, Jawad and Al-Kharusi 2013, Jawad and Ibrahim 2018), Sebastidae (see Davenport 1966, Ueber 1989, Cripe 1998, and few families in the order Pleuronectiformes (see Dawson 1969, Moore and Posey 1974, Akyol and Şen 2012, Ulutürk et al 2015.…”