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The main aim of this study is to estimate the future of the aquaculture of Middle Eastern Countries for the year 2030 by time series analysis method. In addition, it is a classification and clustering based on fisheries production, import, export and consumption data with basic component analysis (PCA) and hierarchical cluster analysis (HCA) methods for Middle Eastern countries. FAO (United Nations Food and Agriculture Organization) used the statistics of fisheries products of the Middle East countries between 1950 and 2016. Time series, clustering and factor analysis were applied to these data. As a result of the time series analysis, the aquaculture production will end up in Kuwait, Libya and Syria if the current situation continues. Also, in other countries, production for 2030 is projected to be lowest for Jordan and the highest for Egypt. Accordingly, the total amount of aquaculture production in the Middle East countries is estimated to be 4.8 million tons in 2030. In the PCA, according to PC1; Cyprus, Iraq, Israel, Jordan, Kuwait, Lebanon, Saudi Arabia, Turkey and the United Arab Emirates and according to PC2; Algeria, Egypt, Iran, Oman, Tunisia and Yemen have been associated with high rates, respectively. According to the HCA; first cluster, Jordan, Lebanon, Kuwait, Cyprus, Iraq; 2nd cluster Israel, United Arab Emirates, Algeria, Tunisia, Oman and Yemen; 3rd cluster Saudi Arabia; 4. Cluster consists of Iran, Turkey and Egypt. According to the results of this study, the aquaculture of these countries should be examined in more detail. It is also recommended that countries implement the necessary regulations in fisheries policies.

This study was conducted to evaluate the feed utilization and protein effect ratios of combined and single diet administration of potassium di formate (KDF) in juvenile rainbow trout (Oncorhynchus mykiss). 600.000 trout fry were stocked as 50.000 in each cage and were fed 3 meals a day in the range of 25-80 grams and two meals a day up to 80-250 grams (until harvest time) and fed with commercial feeds until satiation. 3 kg/ton (T1), 5kg/ton (T2) and 7 kg/ton (T3) KDF were added to the diets and given to fish for 11 months. In the study, when the specific growth rates (SGR) of fish were compared, the results obtained in the T1, T2 and T3 groups were generally higher than in the control group. While no significant difference was found between T1 and T2 groups (p>0.05), there is a significant difference between T3, the other experimental groups and the control (p<0.05). In the study, a significant difference was found between the feed conversion rate (FCR of all groups, (p<0.05)). When the protein efficiency ratio (PER) was compared to the control group and the other groups, a significant difference was detected, while the same situation was found among the KDF supplemented groups (p<0.05). While the survival rate (SR) was significantly different between the control and experimental groups (p<0.05), there was no statistical difference between the experimental groups (p>0.05). The results of the study showed that the application of 7 kg/ton KDF can be considered a useful feed additive and a growth promoter for rainbow trout juveniles.

Deniz ve iç sulardaki baraj göllerindeki balık yetiştiriciliği çalışmalarında kullanılan yüzer ağ kafes sistemlerinin en önemli bileşenlerinden bir tanesini dikmeler oluşturmaktadır. Dikme üretiminde geçmişten günümüze kullanılan en yaygın yöntem rotasyon sistem iken son yıllarda plastik işleme teknolojilerinin gelişmeye başlaması ile birlikte, pek çok alanda olduğu gibi dikme üretiminde de enjeksiyon yönteminin kullanılması gündeme gelmiştir. Bu çalışmada ticari bir kafes üretim tesisinde iki üretim metodunun iş gücü, kullanılan hammadde özelikleri ve birim zamandaki üretim kapasitesi ile enerji tüketimi ve üretim maliyetleri açısından karşılaştırılması yapılmıştır. Elde edilen sonuçlarda, enjeksiyon yöntem ile üretimin seçilmesi durumunda iş gücünün yarı yarıya azaltılabileceği, rotasyon sistemde kullanılan toz yapıdaki düşük yoğunluklu polietilen (LDPE) malzeme yerine granül formdaki hammaddenin de seçilebileceği, bir saatlik zaman diliminde enjeksiyon yöntemle %50 oranında daha fazla sayıda dikme üretilebileceği görülmüştür. Bununla birlikte her iki yöntemin kullanımı sırasında harcanan enerji miktarı göz önünde bulundurulduğunda enjeksiyon sistem ile üretimin %80 oranında enerji tasarrufu sağlayabileceği görülmüş, üretim maliyetlerinin de %9.2 oranında azaltılabileceği hesaplanmıştır.

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