SERUM BIOCHEMISTRY OF FARMED BLUEFIN (Thunnus thynnus L.) IN THE AEGEAN SEA

Yıl 2017, Cilt: 12 Sayı: 4, 271 - 276, 31.10.2017

Fatih Perçin , Sibel Konyalioglu Kürşat Fırat , Şahin Saka , Osman Özden

Öz

Values of blood biochemistry are important for all animals in terms of
health and welfare, providing knowledge of evidence in diseases. One of the
most economically important fish species bluefin tuna-BFT (Thunnus thynnus L.) in aquaculture considering high prices in the
related business. Accordingly, farmers care about fattening fishes and some
analyses provide significant knowledge, especially blood analyses for them. In the study, blood samples were recovered from fishes (10 male and 12
female) in fattening farms at Ildır, Çeşme, İzmir province, East of Aegean Sea.
Fork length and weight values were 140–180cm, and 40–80kg, respectively. Water
quality parameters such as temperature, salinity, dissolved oxygen, pH and
turbidity were indicated as 16–20^oC, ‰ 35.7–38.2g L^-1,
% 6.9-7.8mgL^-1, 36.8–38.2m. The
research measured uric acid 4.32mg/100mL^-1, creatinine 1.12mg/100mL^-1,
serum urea concentration 15.04mg/100mL^-1), albumin 2.30g/100mL^-1,
globulin 2.56g/100mL^-1, total protein 6.15g/100mL^-1,
serum glutamic oxaloacetic transaminase 178.24UL^-1, serum glutamate
pyruvate transaminase 141.52UL^-1, alkaline phosphatase 54.26UL^-1,
g-glutamyl transferase 220.14UL^-1, total cholesterol 272.04mg/100mL^-1,
triglycerides 320.75mg/100mL^-1, high-density lipoprotein 88.68mg/100mL^-1
and low-density lipoprotein 180.18mg/100mL^-1. Results during the
fattened period in growing cages indicates that BFTs were under pressure and
stress attacks because of unnatural habitats such as feeding, narrow area etc.
in farm area. Also, males were more sensitive and undergo more stress than
females. 

Anahtar Kelimeler

Bluefin tuna, Thunnus thynnus, Serum Biochemistry, Fattened Fish, Farm Areas

Kaynakça

• 1. Bridges, C.R., Gordin, H., and García, A., (2002). Domestication of the Bluefin tuna (Thunnus thynnus thynnus). Cahiers Options Méditerranéennes, vol:60, Chieam-IAMZ, pp:203.
• 2. Ottolenghi, F., (2008). Capture-based Aquaculture of Bluefin tuna. In: Lovatelli A, Holtus PF (eds). Capture-based Aquaculture. Global overview. FAO Fisheries Technical Paper. No:508. pp:169-182.
• 3. Percin, F. and Konyalioglu, S., (2008). Serum Biochemical Profiles of Captive and Wild Northern bluefin tuna (Thunnus thynnus L. 1758) in the Eastern Mediterranean. Aquaculture Research, 39:945-953.
• 4. Perçin, F., Fırat, K., and Saka, Ş., (2009). Bluefin tuna (Thunnus thynnus L., 1758): fishing, towing and the problems during transportation to the fattening farms. Journal of Fisheries and Aquatic Sciences, 26:3, 235-241 (in Turkish).
• 5. Mylonas, C.C., De La Gándara, F., Corriero, A., and Belmonte Ríos, A., (2010). Atlantic Bluefin Tuna (Thunnus Thynnus) Farming and Fattening in the Mediterranean Sea, Reviews in Fisheries Science, 18, 3, 266.
• 6. Fernando De la Gándara, F., Ortega, A., and Buentello, A., (2016). Advances in Tuna Aquaculture, 115 p.
• 7. Addis, P., Corrias, S., Garau, C., and Secci, M., (2013). Physiologic Responses to Stress and Changes in Atlantic Bluefin Tuna (T. thynnus) Meat Color During Trap Fisheries Capture and Processing in Sardinia (W. Mediterranean), Journal of Aquatic Food Product Technology, 22, 3, 298.
• 8. Stotskopf, M., (1993). Fish Medicine, W.B. Saunders Company California University, 882 p.
• 9. Schaefer, K.M., (2001). Reproductive Biology of Tunas. In: Block BA, Stevens ED (Eds.) Tuna: Physiology, ecology and evolution. vol:19 Academic Press, San Diego, pp:225-270.
• 10. Kitagawa, T. and Kimura, S., (2016). Biology and Ecology of Bluefin Tuna. CRC Press, Taylor and Francis Group, Boca Raton, FL., 419 p.
• 11. Perçin, F. and Akyol, A., (2010). Some Morphomethric Relationships in Fattened Bluefin Tuna Thunnus thynnus L., from the Turkish Aegean Sea. Journal of Animal and Veterinary Advances, (9)11: 1684-1688.