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Öğe Gölova Baraj Gölü (Sivas)’nde Yaşayan Pullu Sazan (Cyprinus carpio Linnaeus, 1758)’ın Bazı Büyüme Özellikleri ve Et Veriminin İncelenmesi(2019) YÜNGÜL, Mücahit; Gokhan, Haci Bayram; DÖRÜCÜ, MUSTAFABu çalışmada, Temmuz 2017 - Mart 2018 tarihleri arasında Gölova Baraj Gölü’nden yakalanan 82 adet pullu sazan (Cyprinus carpio Linnaeus, 1758)’ın cinsiyet ve yaş gruplarına göre bazı büyüme özellikleri ile et verimliliği araştırılmıştır. Örneklerin % 32.93’ünü dişi, % 67.07’sini erkek bireyler oluşturmuştur. Dişi ve erkek bireyler II-V arası yaşlarda tespit edilmiştir. Ortalama total boy ve ağırlığın dişilerde 40.99±1.07 cm ve 1001.27±82.97 g; erkeklerde 37.27±0.41 cm ve 734.34±30.69 g; tüm bireylerde 38.49±0.49 cm ve 822.23±36.65 g olduğu saptanmıştır. Tüm örnekler için boy-ağırlık ilişkisi W=0.0151TL2.9743 (R2=0.8796) ve ortalama kondisyon faktörü 1.385±0.018 olarak belirlenmiştir. C. carpio’da et verimliliği ile çeşitli vücut kısımları arasındaki ilişkiler incelendiğinde; fileto ve karkas ağırlıklarının ortalama et verimleri sırasıyla dişilerde % 47.59±0.71 ve % 59.19±0.82; erkeklerde % 49.80±0.32 ve % 60.67±0.34; tüm bireylerde % 49.07±0.34 ve % 60.18±0.36 olarak saptanmıştır. Tüketilmeyen vücut kısımlarından iç organ, baş, yüzgeç, deri ve kemik ağırlıklarının vücut ağırlığına göre ortalama oranları da tüm bireyler için sırasıyla % 12.98±0.39, % 22.32±0.23, % 4.51±0.79, % 8.49±0.25 ve % 2.63±0.04 olarak belirlenmiştir.Öğe Investigation of Diplostomum sp. in Some Fish Species Caught in Atatürk Dam Lake(2025) ÖZCAN, Mikail; ISPIR, ÜNAL; Gokhan, Haci Bayram; ŞAHİN, Ayse GülThe aim of this study was to investigate the presence of Diplostomum sp. in a total of 192 fish of five different species (Carasobarbus luteus, Acanthobrama marmid, Chondrostoma regium, Capoeta trutta and Luciobarbus mystaceus) obtained from four regions of Atatürk Dam Lake (Sitilce, Samsat, Hösürge and Gerger). The presence of Diplostomum sp. was identified in 149 fish specimens, while it was not detected in 43 fish specimens. It was established that the minimum and maximum parasite presence levels ranged from 1 to 209. The fish species with the highest mean parasite density were Chondrostoma regium (19.30), Acanthobrama marmid (14.13), Carasobarbus luteus (13.15), Capoeta trutta (11.5) and Luciobarbus mystaceus (9.71). The study demonstrated that the prevalence of Diplostomum sp. in fish from Atatürk Dam Lake varied according to both region and species.Öğe The Relationship between Copper Tolerance and Antibiotic Susceptibility of Vagococcus salmoninarum Isolated from Kılavuzlu Dam Lake(2025) Gokhan, Haci Bayram; ISPIR, ÜNAL; ÖZCAN, Mikail; ŞEKER, EnginThe contamination of aquatic ecosystems by heavy metals has been identified as a significant environmental hazard for aquatic animal species, including fish. The objective of this study was to investigate the tolerance of Vagococcus salmoninarum bacteria to copper and the impact of copper exposure on antibiotic susceptibility. The bacterial isolates, comprising six strains, were obtained from rainbow trout reared in cage culture at Kılavuzlu Dam Lake. The initial assessment of antibiotic susceptibility was conducted using the Kirby-Bauer disc diffusion method, which was subsequently validated through the determination of minimum inhibitory concentration (MIC). The broth microdilution method was employed, with the bacterial isolates exposed to concentrations of copper sulphate ranging from 0.1 to 1 mM. The resistance to multiple antibiotics was altered to be significantly altered following exposure to copper sulphate. The minimum inhibitory concentration (MIC) value of copper was observed to be 0.4 mM against V. salmoninarum. It was noted that V. salmoninarum, which has been exposed to copper in its natural environment, has developed the capacity to withstand stress and has undergone a change in its physiological status.
