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Öğe Cladocera and copepoda fauna of Aslantaş Dam Lake (Osmaniye-Turkey)(2009) Bozkurt, Ahmet; Göksu, Münir Ziya Lugal; Altun, AyhanQuantitative and qualitative examinations of zooplankton in Aslantaş Dam Lake were studied between April 2001 and March 2002. It was established that total zooplankton in the reservoir is being represented with 18 species belonging to Cladocera and Copepoda. Number of the species belonging to cladocer and copepod are 14 and 4, respectively. Contrary to the number of species, abundance was found to be in favor of copepods (65.99% of total zooplankton). Remaining one third of total zooplankton (34.01%) was cladocerans. The most abundant species were determined as Bosmina longirostris among cladocerans and Thermocyclops vermifer persicus (Lindberg, 1936) among copepods. Monthly depth of light penetration zone (photic zone) was calculated using Secchi disk readings. It was observed that the copepods were more abundant than the cladocerans in the light penetration zone (photic zone). Beyond the light penetration zone the situation was reversed and the cladocerans were found to be more abundant than the copepods. Chlorophyll-a level was also examined in the lake. Since this study is the very first study carried out on the zooplankton of Aslantaş Dam Lake, all of the species observed are the first reports for Aslantaş Dam Lake.Öğe Ichthyofauna and its conservation status of büyük karaçay stream, Hatay, Turkey(University of Zagreb - Faculty of Agriculture, 2015) Özcan, Gülnaz; Altun, AyhanThis study was conducted to determine ichthyofauna of the Büyük Karaçay stream of the River Orontes drainage in Turkey (eastern Mediterranaen basin). As the result of examination of the 911 individuals collected between June 2012 and May 2013, eight fish species belonging to five families have been recorded. Of these, African catfish Clarias gariepinus (Burchell, 1822), yellow barbel Carasobarbus luteus (Heckel, 1843) and two spot loach Oxynoemacheilus argyrogramma (Heckel, 1847) are new species reported for the ichthyofauna of the Büyük Karaçay stream. Red garra Garra rufa is found to be the predominant species of the stream. Endemic fish species of the stream are Tigris barb Capoeta barroisi, yellow barbel C. luteus, red garra G. rufa and two spot loach O. argyrogramma. Three fish species, i.e. European eel Anguilla anguilla, Mesopotamian barb Capoeta damascina, African catfish C. gariepinus are native. Besides native and endemic species, there is an alien fish species, namely eastern mosquitofish Gambusia affinis, occupying the habitat. Main threats for the fishes of the stream are mostly habitat loss, pollution, water abstraction and alien species. © The Author(s) 2015. Published by University of Zagreb, Faculty of Agriculture. All rights reserved.Öğe İskenderun-Arsuz arası (İskenderun Körfezi) kayalık supralittoral zonun makrobentik faunası(2014) İnandı, Burak Türker; Alkan, Celal; Altun, Ayhan; Özcan, TahirÖzet Bu çalışma, İskenderun-Arsuz arasında kalan bölgede kayalık supralittoral zonunun makrobentik faunası incelenmiştir. Örnekleme Mart 2011 tarihinde 3 farklı istasyonda gerçekleşmiştir. Çalışma sonucunda Krustase grubuna (Cirripedia 2, Decapoda 1) ait 3 tür ve 99 birey, Mollusca (Gastropoda 4, Bivalvia 1) grubuna ait 5 tür ve 58 birey tespit edilmiştir. İstasyonlar genelinde en dominant tür 87 bireyle ve %55,4 dominansi değeriyle Chthamalus stellatus (Poli, 1795) olduğu tespit edilmiştir. Frekans indeksine göre 3 tür devamlı ve 5 tür yaygın olarak tanımlanmıştır.












