Ahmet Bozkurt | Mustafa Kemal University (original) (raw)

Papers by Ahmet Bozkurt

Research paper thumbnail of Morphologic divergence and systematic relationship of Copepod in Turkish freshwater

The pattern of taxonomic relationship and morphological divergence of three copepod species Therm... more The pattern of taxonomic relationship and morphological divergence of three copepod species Thermocyclops crassus, T.
dybowskii and T. vermifer collected from three different localities in Mediterranean region of Turkey were investigated. A
multivariate ANOVA using morphometric characters revealed highly significant intersample variation for most of the characters
between species. In discriminant function analyses, the first discriminant function accounted for 65% and the second accounted for
35% of the between-group variability, showing clear between-species differentiation. Component loadings of discriminating
variables showed that thorax segments of cephalothorax played an important role to discriminate Thermocyclops species. The
Neighbour-joining analysis produced two main clustering, T. vermifer was closest taxa to T. dybowskii being the sister group to the T.
crassus which was the most divergent in this group. In the correct assignment of individuals into their original sample, the
proportion of correctly classified T. crassus to their original group was highest (100%), showing a clear separation from the other
species.

Research paper thumbnail of Morphologic divergence and systematic relationship of Copepod in Turkish freshwater

The pattern of taxonomic relationship and morphological divergence of three copepod species Therm... more The pattern of taxonomic relationship and morphological divergence of three copepod species Thermocyclops crassus, T.
dybowskii and T. vermifer collected from three different localities in Mediterranean region of Turkey were investigated. A multivariate ANOVA using morphometric characters revealed highly significant intersample variation for most of the characters between species. In discriminant function analyses, the first discriminant function accounted for 65% and the second accounted for 35% of the between-group variability, showing clear between-species differentiation. Component loadings of discriminating variables showed that thorax segments of cephalothorax played an important role to discriminate Thermocyclops species. The Neighbour-joining analysis produced two main clustering, T. vermifer was closest taxa to T. dybowskii being the sister group to the T. crassus which was the most divergent in this group. In the correct assignment of individuals into their original sample, the
proportion of correctly classified T. crassus to their original group was highest (100%), showing a clear separation from the other species.

Research paper thumbnail of Yenişehir Gölü (Reyhanli, Hatay) Zooplanktonu

Zooplankton of Yenişehir Lake (Reyhanlı, Hatay). Zooplankton and some water qualities (nitrate, p... more Zooplankton of Yenişehir Lake (Reyhanlı, Hatay). Zooplankton and some water qualities (nitrate, phosphate, pH, dissolved oxygen temperature and transparency) of Yenişehir Lake which is located Reyhanlı town in Hatay province, was studied. İn this study, in total of 42 taxa were identified which is 33 of them rotifers, 5 of them Cladocerans and 4 of them copepods. Keratella tropica, and Eudiaptomus drieschi were found every month through study period but some species Lecane leontina, Colurella adriatica, Ascomorpha ovalis, Lophocharis salpina, İlyocryptus sordidus were found only one month study period. Zooplankton of lake was researched quantitatively also and Conochiloides natans, Moina micrura and Thermocyclops crassus was found maximum, and Lecane leontina, Macrothrix laticornis and Eucyclops speratus were found minumum. İn addition Lecane leontina is new record for inland water of Turkey Özet: Hatay ili Reyhanlı ilçesinde bulunan Yenişehir Gölü'nün zooplanktonu ve bazı su kalite özellikleri (nitrat, fosfat, pH, çözünmüş oksijen, sıcaklık ve ışık geçirgenliği) araştırılmıştır. Çalışma sonunda Rotifera'dan 33, Cladocera'dan 5 ve Copepoda'dan 4 tür olmak üzere toplam 42 taxa tespit edilmiştir. Keratella tropica ve Eudiaptomus drieschi çalışma süresince her ay bulunurken, Lecane leontina, Colurella adriatica, Ascomorpha ovalis, Lophocharis salpina ve İlyocryptus sordidus sadece bir ay bulunmuşlardır. Zooplanktonik organizmalar bolluklarına göre de Rotifera'dan en çok Conochiloides natans, en az Lecane leontina; Cladocera'dan en çok Moina micrura, en az Macrothrix laticornis ve Copepoda'dan en çok Thermocyclops crassus, en az Eucyclops speratus olduğu belirlenmiştir. Ayrıca Lecane leontina Türkiye içsuları için yeni kayıttır.

Research paper thumbnail of Morphologic divergence and systematic relationship of Copepod in Turkish freshwater

The pattern of taxonomic relationship and morphological divergence of three copepod species Therm... more The pattern of taxonomic relationship and morphological divergence of three copepod species Thermocyclops crassus, T.
dybowskii and T. vermifer collected from three different localities in Mediterranean region of Turkey were investigated. A
multivariate ANOVA using morphometric characters revealed highly significant intersample variation for most of the characters
between species. In discriminant function analyses, the first discriminant function accounted for 65% and the second accounted for
35% of the between-group variability, showing clear between-species differentiation. Component loadings of discriminating
variables showed that thorax segments of cephalothorax played an important role to discriminate Thermocyclops species. The
Neighbour-joining analysis produced two main clustering, T. vermifer was closest taxa to T. dybowskii being the sister group to the T.
crassus which was the most divergent in this group. In the correct assignment of individuals into their original sample, the
proportion of correctly classified T. crassus to their original group was highest (100%), showing a clear separation from the other
species.

Research paper thumbnail of Morphologic divergence and systematic relationship of Copepod in Turkish freshwater

The pattern of taxonomic relationship and morphological divergence of three copepod species Therm... more The pattern of taxonomic relationship and morphological divergence of three copepod species Thermocyclops crassus, T.
dybowskii and T. vermifer collected from three different localities in Mediterranean region of Turkey were investigated. A multivariate ANOVA using morphometric characters revealed highly significant intersample variation for most of the characters between species. In discriminant function analyses, the first discriminant function accounted for 65% and the second accounted for 35% of the between-group variability, showing clear between-species differentiation. Component loadings of discriminating variables showed that thorax segments of cephalothorax played an important role to discriminate Thermocyclops species. The Neighbour-joining analysis produced two main clustering, T. vermifer was closest taxa to T. dybowskii being the sister group to the T. crassus which was the most divergent in this group. In the correct assignment of individuals into their original sample, the
proportion of correctly classified T. crassus to their original group was highest (100%), showing a clear separation from the other species.

Research paper thumbnail of Yenişehir Gölü (Reyhanli, Hatay) Zooplanktonu

Zooplankton of Yenişehir Lake (Reyhanlı, Hatay). Zooplankton and some water qualities (nitrate, p... more Zooplankton of Yenişehir Lake (Reyhanlı, Hatay). Zooplankton and some water qualities (nitrate, phosphate, pH, dissolved oxygen temperature and transparency) of Yenişehir Lake which is located Reyhanlı town in Hatay province, was studied. İn this study, in total of 42 taxa were identified which is 33 of them rotifers, 5 of them Cladocerans and 4 of them copepods. Keratella tropica, and Eudiaptomus drieschi were found every month through study period but some species Lecane leontina, Colurella adriatica, Ascomorpha ovalis, Lophocharis salpina, İlyocryptus sordidus were found only one month study period. Zooplankton of lake was researched quantitatively also and Conochiloides natans, Moina micrura and Thermocyclops crassus was found maximum, and Lecane leontina, Macrothrix laticornis and Eucyclops speratus were found minumum. İn addition Lecane leontina is new record for inland water of Turkey Özet: Hatay ili Reyhanlı ilçesinde bulunan Yenişehir Gölü'nün zooplanktonu ve bazı su kalite özellikleri (nitrat, fosfat, pH, çözünmüş oksijen, sıcaklık ve ışık geçirgenliği) araştırılmıştır. Çalışma sonunda Rotifera'dan 33, Cladocera'dan 5 ve Copepoda'dan 4 tür olmak üzere toplam 42 taxa tespit edilmiştir. Keratella tropica ve Eudiaptomus drieschi çalışma süresince her ay bulunurken, Lecane leontina, Colurella adriatica, Ascomorpha ovalis, Lophocharis salpina ve İlyocryptus sordidus sadece bir ay bulunmuşlardır. Zooplanktonik organizmalar bolluklarına göre de Rotifera'dan en çok Conochiloides natans, en az Lecane leontina; Cladocera'dan en çok Moina micrura, en az Macrothrix laticornis ve Copepoda'dan en çok Thermocyclops crassus, en az Eucyclops speratus olduğu belirlenmiştir. Ayrıca Lecane leontina Türkiye içsuları için yeni kayıttır.