In this study, the intention was to investigate the chemical and sensorial changes occurring during cold storage (4 ± 1°C) of caviar obtained from rainbow trout Oncorhynchus mykiss W. 1792 that was dry salted in different ratios. Caviar has a higher fat and protein content than other seafood products, and in processing it with dry salting technology, it was determined that the shelf life could be up to 28 days for the experimental group in which salt was applied at a rate of 4% and up to 35 days for the experimental group in which salt was applied at a rate of 8%. Thus the storage period of the samples is longer for the products to which a high (8%) amount of salt was applied than the products to which a low (4%) amount of salt was applied in the salting process.

SummaryLength-weight relationships (LWR) are presented for five commercial freshwater fish species (Luciobarbus esocinus, Heckel, 1843; Capoeta trutta, Heckel, 1843; Barbus lacerta, Heckel, 1843; Luciobarbus mystaceus, Pallas, 1814 and Capoeta umbla, Heckel, 1843) collected from Keban Dam Lake located in eastern Anatolia, Turkey. Studied samples were obtained between July and December 2008 using commercial gill nets. For each species the sample size, length range, weight range, lengthweight relationships, 95% confidence intervals of a and b, coefficient of correlation and growth type are given. Values of b were between 2.915 (Luciobarbus esocinus) and 3.079 (Copoeta trutta) and r 2 values from 0.919 (Copoeta trutta) to 0.987 (Barbus lacerta) in the study. New maximum length and length-weight relationships are reported for Barbus lacerta and Luciobarbus mystaceus.

Öz: Bu çalışma, Keban Baraj Gölü'nde Su Ürünleri kooperatifine ortak su ürünleri avcılığı yapan balıkçıların sosyo-ekonomik yapılarını ortaya koymak amacıyla yapılmıştır. Araştırma, Keban Baraj Gölü'nde 82 balıkçı ile yüz yüze görüşme tekniği ile uygulanan anketler ile elde edilmiştir. Çalışma sonucunda, bölgede su ürünleri avcılığı yapan balıkçıların yaşları 25-69 arasında tespit edilmiştir. Balıkçıların %67,07'i ilkokul, %18,29'u ortaokul, %10,98'inin lise mezunu oldukları, %3,66'ının hiç okula gitmeyen okur-yazar olan balıkçılardan oluştuğu tespit edilmiştir. Balıkçıların % 95,12' i evli, % 4,88'inin bekar olduğu, çocuk sayılarının 1-7 arasında değiştiği, evli balıkçıların % 25'inin çocuk sahibi olmadığı belirlenmiştir. Balıkçıların %1,22'i devlet memuru, %1,22'i emekli, %3,66'ının esnaf, % 91,46'ının asıl mesleklerinin balıkçı olduğu saptanmıştır. Balıkçıların balıkçılığı seçme nedenlerini %24,39'u baba mesleği, %67,07'i işsizlikten dolayı, %8,54'ü ek gelir olarak balıkçılık yaptıkları belirlenmiştir. Balıkçıların 2014 yılı aylık ortalama olarak balık avcılığından elde ettikleri net gelirlerinin % 15,85'inin 0-499 ₺, % 21,95'inin 500-749 ₺, % 31,71'inin 750-999 ₺, % 30,49'unun 1000-1499 ₺ arasında olduğu tespit edilmiştir. Sonuç olarak; bölge balıkçısının sosyo-ekonomik yapılarının istenilen düzeyde olmadığı tespit edilmiştir. Anahtar kelimeler: Su ürünleri kooperatifi, Sosyo-ekonomik yapı, Keban Baraj Gölü, TürkiyeAbstract: This study has been carried out to determine the main socio economic structures of fishermen in Keban Dam Lake. The research, was obtained by questionnaire through face to face interviews with 82 fishermen in the Keban Dam Lake. As a result of study, fishermen has been identified between 25 to 69 in age in the region and that 67.07% of them are primary school graduates, 18.29%, are secondary school graduates 10.98% are high school graduates 3.66% are fisherman who do not go to school. It has been confirmed that 95.12% of fishermen are married, 4.88% of them are single and the number of children varied between 1and 7, 25% of the married fisherman have'nt got children. It has been stated that 22% of fisherman the civil servants, 1.22% the retirees, 66% the tradesman, to be fishing the main occupation of 91.46%. The reasons selection fisheries of the fishermen are found that 24.39% father's occupation, 67.07% of them due to the unemployment, 8.54% of them addition income. The income average monthly of fishermen has been found ₺ 0-499 to 15.85% ₺ 500-749 to 21.95%, ₺ 750-999 to 31.71%, ₺ 1000-1499 to 30.49%. As a result of study ıt has been determined that it is not at desired level of socio-economic structures of the region fishermen.

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