Browsing by Author "Arabaci, M."

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Assessment of Antioxidant Enzymes and Acetylcholine Esterase Enzyme Activities in Liver, Gill and Brain Tissues of Rainbow Trout Grown Under Different Light Wavelengths
(Wiley-blackwell, 2016) Guller, U.; Onalan, S.; Arabaci, M.; Karatas, B.; Yasar, M.; Kufrevioglu, O. I.
Examination of Behavioral Traits of Monocultures and Polycultures of Two Different Trout Species (Oncorhynchus Mykiss, Salmo Sp.) at Different Ratios Depending on Various Factors
(ABADER (Adıyaman Bilimsel Arastırmalar Dernegi), 2021) Karataş, B.; Arabaci, M.
The present study aimed to determine both the effects of monocultures of rainbow trout (R) and brown trout (B) and polycultures (R 75%-B 25%; R 66%-B 34% and R 50%-B 50%) on behavior. In the study, the area used vertically by the fish in the tank, the mobility rate of fish in the tank, the rate of tendency of fish in eating as soon as they were fed, whether the fish test the feed, the interspecies feed competition, the time they start to take the first feed, the duration of the feed consumption of the fish and the feed area of the fish have been considered as behavioral evaluation criteria. The trout were monitored with a camera to determine their behavior. Considering all behavioral criteria, the best polyculture rate was determined as R 66%- B 34%. Brown trout were found to be more mobile and exhibit more relaxed behavior compared to other groups in polyculture. In addition, interspecies feed competition was mostly encountered in this group. As a result, in this study, in which two different trout species were monocultured and treated at different polyculture ratios, the main factor causing behavioral change in fish was found to be the different stocking rates of fish to each other in the same tank. Different rates applied in polyculture caused unpredictable changes in behavior in both species. The ratio of fish used in polyculture was found to be a considerable factor affecting the final product and their behavior for aquaculture. © 2021, ABADER (Adıyaman Bilimsel Arastırmalar Dernegi). All rights reserved.
The First Record of Zebra Mussel in Sarımehmet Dam (Van) and Its Possible Effects on Regional Fisheries
(ABADER (Adıyaman Bilimsel Arastırmalar Dernegi), 2019) Akkus, M.; Sari, M.; Arabaci, M.
The present research was conducted between October 2018 and October 2019 at Sarımehmet Dam which is on Karasu Stream. Sarımehmet Dam is a dam that is 60 kilometers away from Van city center and it has approximately 10 km² of surface area. It was first opened in 1991 for agricultural irrigation and electricity production. The zebra mussel (Dreissena polymorpha Pallas, 1771) captured in Sarımehmet Dam is a kind of invasive species and this is its first record in Van Province. In this study, the length-weight relationships of 733 zebra mussels from four stations were determined and the temperature, pH, salinity, and dissolved oxygen values of the stations were measured. The length-weight relationship was calculated according to the stations as W=0.0003XL2.976, W=0.0002XL2.971, W=0.0002XL2.962 and W=0.0002XL2.963. The measured maximum-minimum water quality values were noted for temperature as 1.5-22 °C, pH 8.2-8.9, salinity as ‰0.21-0.39 and dissolved oxygen as 6.44-11.45 mg/L. Based on the data, if zebra mussels in Sarımehmet Dam are moved to other water resources in the region, it was determined that invasion of pearl mullet breeding areas will cause great damage for fishery in the region. In the light of the gathered data, it was found out that if the zebra mussels in Sarımehmet Dam were transported to other water resources in the region, they would invade pearl mullet breeding areas and cause great damages for the fishery of the region. © 2019, ABADER (Adıyaman Bilimsel Arastırmalar Dernegi). All rights reserved.
The Influence of Changing Dietary Cation-Anion Differences and Dietary Na/K Ratios on Growth and Feed Efficiency in Rainbow Trout, Oncorhynchus Mykiss
(2010) Arabaci, M.; Nursoy, H.; Diler, I.
The effects of diets, regulated in respect of both dietary cation-anion difference and dietary Na+/K+ ratio (dietary CAD-Na/K level), on growth, feed efficiency and serum mineral concentration in rainbow trout were investigated. Five dietary CAD-Na/K levels (101-0.4; 352-1.32; 560-2.15; 703-2.63; 981-3.53 meq kg-1 mol/mol) were used in the experiment. A total of 500 fish, 2 groups for each treatment consisting of 50 fish with a mean initial body weight of 87 ±1.75 g were used in the trial. The experiment lasted fifteen weeks. Increasing both dietary CAD level and dietary Na/K ratio has significant positive effects on growth performance and feed efficiency in rainbow trout. It was concluded that weight gain, specific growth rate, thermal-unit growth coefficient and protein efficiency rate increased linearly, feed conversion rate decreased linearly and daily feed intake was not influenced with increasing dietary CAD-Na/K level between 101-0.4 and 981-3.53 (meq kg-1 mol/mol). Na, K, Cl and CAD level in the serum remained constant among groups. The dietary CAD-Na/K levels between 560-2.15 and 981-3.53 (meq kg-1 mol/mol) produced the best growth for rainbow trout. Use of Na2CO3 and NaHCO3 as a cationic supplement andNa source was appropriate for making diet cationic and increasing the CAD level and Na/K ratio of diet. © Medwell Journals, 2010.