Yazar "Demirsoy, Ali" seçeneğine göre listele

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    Characterization of the Embryonic and Larval Development of Wild Pike-Barb (Luciobarbus esocinus) Biological Parameters, and the Possibility of Breeding
    (Israeli Journal Of Aquaculture-Bamidgeh, 2016) Ozgur, Mustafa Erkan; Akbulut, Aydin; Demirsoy, Ali
    This study was conducted to obtain preliminary data on the possibility of breeding this species through artificial insemination and to determine the incubation period at different temperatures (degrees C) of hatchery water [20 (A1), 22 (A2), 25 (A3) and 26 (A4); (+/- 1)] and to determine the morphological and larval growth parameters of L. esocinus. The blastoderm formed an embryonic shield 43 h (A1 and A2) and 36 h (A3 and A4) after insemination. The eggs hatched after 113 h (A1 and A2) and 61.5 h (A3 and A4) after insemination, and new larvae were observed. Exposing the newly fertilized eggs to various temperatures during the incubation period resulted in significantly longer duration of embryo formation, egg hatching and yolk sac consumption (h) at 20 degrees C and 22 degrees C than at 25 degrees C and 26 degrees C (P < 0.05). No significant differences were observed between eggs exposed to 20 degrees C and 22 degrees C and those exposed to 25 degrees C and 26 degrees C (P > 0.05). However, significant differences in day-degree of hatching were observed among all the groups (P < 0.05).
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    SOME QUALITY PARAMETERS OF SURFACE WATER OF KARASU RIVER IN UPPER PART OF EUPHRATES BASIN, TURKEY
    (Carpathian Assoc Environment And Earth Sciences, 2012) Ozgur, Mustafa Erkan; Akbulut, Aydin; Demirsoy, Ali
    Research in Euphrates basin in Turkey showed the following values: temperature, dissolved oxygen, pH, nitrite, nitrate, chlorine, sulfate, iron, copper, calcium, magnesium and silica in surface waters were monitored. Significant relationships among these parameters were observed at seasonal term. Some significant (p<0.05) differences were determined among the parameters (temperature, dissolved oxygen demand, nitrite, chlorine, sulfate, iron and copper) according to seasons. pH was not determined a significant (p>0.05) differences in all seasons. However, it was also significant (p<0.05) differences the results of nitrate at summer, calcium and magnesium at spring, silica at winter as other seasons. The data of chlorine, iron, and copper in Karasu River were measured high levels according to water quality standards of EPA.