http://hdl.handle.net/11508/11931 2026-04-29T12:56:16Z 2026-04-29T12:56:16Z Çalta, Metin http://hdl.handle.net/11508/9861 2017-11-30T16:29:22Z 2016-11-01T00:00:00Z

Radiographic views of digestive tracts of rainbow trout (Oncorhynchus mykiss) and mirror carp (Cyprinus carpio Çalta, Metin In this study, radiographic views of digestive tracts of rainbow trout [Oncorhynchus mykiss (Walbaum, 1792)] and mirror carp (Cyprinus carpio Linnaeus, 1758) were investigated. For this purpose, barium sulphate suspension was used as contrast agent. This agent was given into fish digestive tracts from the anus using a syringe. Then X-ray radiographs of fishes were taken. It was found that there were quite big differences between rainbow trout and mirror carp in term of structure of digestive tract. In comparison, digestive tract of rainbow trout is shorter because of possessing short intestine, anatomic stomach and pyloric caeca are present. However, digestive tract of mirror carp is very longer because of possessing long intestine and anatomic stomach is absent.

2016-11-01T00:00:00Z Sayın, Burcu Çalta, Metin http://hdl.handle.net/11508/9860 2017-11-30T16:29:22Z 2017-03-01T00:00:00Z

Keban Baraj Gölü'nde yaşayan Aynalı Sazan (Cyprinus carpioLinnaeus, 1758)’nın otolit biyometrisi Sayın, Burcu; Çalta, Metin Bu çalışmada, Elazığ Keban Baraj Gölü’nden yakalanan aynalı sazan (C carpio L., 1758)’de otolit biyometrisi araştırıldı. Bu amaçla, Kasım 2016-Aralık 2016 tarihleri arasında toplam 120 örmek (54 dişi ve 66 erkek) incelendi. Balık örneklerinin toplam boy ve ağırlıkları belirlendikten sonra, gonadları incelenerek eşey tespiti yapıldı. Daha sonra her bir balığın sağ ve sol otolitleri çıkartıldı ve temizlendi. Otolit ağırlıkları 0,0001 g hassasiyette tartıldı. Otolit boyu ve otolit genişliği bilgisayar destekli görüntü analiz programı kullanılarak 0,001mm hassasiyetle ölçüldü. Balıkların ortalama otolit ağırlığı (mg) değerleri (sağ otolit-sol otolit) tüm populasyon, dişiler ve erkekler için sırasıyla (3,38-3,37), (3,29-3,29) ve (3,45-3,44) olarak belirlendi. Ortalama otolit boyu (mm) değerleri sırasıyla (2,57-2,57), (2,56-2,54) ve (2,58-2,59) olarak, ortalama otolit genişliği (mm) değerleri ise sırasıyla (1,61-1,62), (1,60-1,60) ve (1,62-1,63) olarak belirlendi. Sağ-sol otolit verileri ile dişi-erkek otolit verileri arasındaki farklar istatistiksel olarak önemsiz bulundu (P>0,05). Otolit biyometrisi-balık boyu ilişkisi de incelendi.; In this study, otolith biometry of mirror carp (C. carpio L., 1758) obtained from Keban Dam Lake were examined. For this purpose, 120 individuals (54 females and 66 males) were studied during November 2016-December 2016. After total length and weight of fish samples were determined, their sexes were also determined by examining of gonads. Then right and left otoliths were removed and cleaned. Otoliths weight were determined to the nearest ± 0.0001 g. The lengths and widths of otoliths were measured to the nearest ± 0.001 mm with a computer-aided image analysis program. The mean otolith weight (mg) values (right otolith-left otolith) of all population, the females and the males were (3.38-3.37), (3.29-3.29) and (3.45-3.44) respectively. The mean otolith length (mm) values were found to be (2.57-2.57), (2.56-2.54) and (2.58-2.59) respectively and the mean otolith width (mm) values were determined as (1.61-1.62), (1.60-1.60) and (1.62-1.63) respectively. The differences between right and left otolith data and between female-male otolith data were not statistically significant (P> 0.05). Otolith biometry-fish length relationships were also studied.

2017-03-01T00:00:00Z Çalta, Metin Tokluk, Ayşe http://hdl.handle.net/11508/9859 2017-11-30T16:29:25Z 2016-11-01T00:00:00Z

Capoeta trutta heckel 1843 da bazı iskelet yapılarının gelişimi Çalta, Metin; Tokluk, Ayşe Bu çalışmada Keban Baraj Gölünden yakalanan Capoeta trutta (Heckel, 1843)’da bazı kemiksi yapılarının gelişimi araştırıldı. Bu amaçla Ocak 2013-Aralık 2014 tarihleri arasında 50 adet balık örneği incelendi. Balıklar Fırat Üniversitesi Su Ürünleri Fakültesi anatomi laboratuvarına getirildi. Boy ve ağırlıkları belirlendikten sonra dorsal yüzgeç ışınları sayıldı. İç organları çıkartılan balıklar, bir tencere içerisinde sıcak suda 1-5 dakika haşlandı ve tüm kemiksi yapılar etlerden ayrıldı. Kemiksi yapılar iyice temizlendi ve kurutuldu. Daha sonra tüm kemiksi yapılar tartıldı. Ayrıca bazı kemiksi yapıların ağırlık ve uzunlukları da belirlendi. Balıkların yaşı dorsal yüzgeç ışınından kesit alınarak belirlendi. Ağırlık ve boyutları belirlenen bazı kemiksi yapıların, balığın yaşı, ağırlığı ve boyuna bağlı değişimleri belirlendi. Çalışmada incelenen balıkların yaşları 4-9, standart boyları 22,5-40,23 cm, ağırlıkları ise 243,75-1060,10 g arasında belirlendi. Dorsal yüzgeç ışın sayısı 11 (3 sert + 8 yumuşak ışın) olarak sayıldı. Omur sayısı 39-43 adet arasında, ortalama omur ağırlığı 2,35-10,72 g, ortalama omur çapı ise 3,43-6,54 mm olarak belirlendi. Ortalama kemik ağırlığı 8,75-42,73 g arasında, kemik oranı ise %3,49-%4,47 arasında olup en yüksek 7. yaş grubu balıklarda bulundu. Genel olarak C. trutta’da iskelet ve kemik gelişiminin balığın genel gelişimiyle uyumlu olduğu görüldü.; In this study, the development of some bony structures of Capoeta trutta (Heckel, 1843) from Keban Dam Lake was investigated. For this purpose, 50 fish samples were examined from January-2013 to December-2014. Fishes were brought to the anatomy laboratory in Faculty of Fisheries Fırat University. Dorsal fin rays were counted after their lengths and weights have been determined. The internal organs were removed, then they were boiled in a pot of hot water for 1-5 minutes and all bony structures were separated from the meat. Bony structures were cleaned, dried and weighed. The lengths and weights of some selected bony structures were also determined. Fish age was determined from first rays of dorsal fin. The changes of total bony weight, the weights and lengths of some bony structures were determined with the changes of age, weight and length of fish. Fish samples were 4-9 in age, 22.5-40.23 cm in standard length and 243.75-1060.10 g in weight. The number of dorsal fin rays were counted as 11 (3 hard + 8 soft rays). The number, mean weight and mean diameter of the vertebrae were 39-43, 2.35-10.72 g and 3.43-6.54 mm respectively. Mean weight of all bony structures was 8.75- 42.73 g and the percentage of bony weight was 3.49-4.47%. The highest value was determined in age group 7 fishes. In general, it was seen that there was a compatibility between skeletal growth and general development of C. trutta.

2016-11-01T00:00:00Z Eroğlu, Mücahit Düşükcan, Mustafa Canpolat, Özgür Çalta, Metin Şen, Dursun http://hdl.handle.net/11508/9858 2017-11-30T16:29:20Z 2017-07-01T00:00:00Z

Determination of some heavy metals in Mastacembelus mastacembelus (Banks & Solander, 1794) in terms of public health Eroğlu, Mücahit; Düşükcan, Mustafa; Canpolat, Özgür; Çalta, Metin; Şen, Dursun In this study, the accumulation of some heavy metals in spiny eel (Mastacembelus mastacembelus Banks and Solander, 1794) living in Karakaya Dam Lake was determined and human health risk of this fish when consumed as food was examined. For this purpose, the amounts of copper (Cu), chromium (Cr), cadmium(Cd), iron (Fe), zinc (Zn) in water samples and in the muscle tissues of the fishes were determined. The amounts of heavy metals showed differences in the muscle tissues of Mastacembelus mastacembelus according to weight, length, sex and age groups of fish. In conclusion the amounts of heavy metals in the flesh of spiny eels were found lower than that recommended by EPA, WHO, FAO and TFC.

2017-07-01T00:00:00Z