Tilapianın, Oreochromis niloticus Farklı Tuz Konsantrasyonlarındaki Sulara Direkt Transferinde Oluşan Sekonder Stres Yanıtı

Yıl 2005, Cilt: 11 Sayı: 02, 139 - 141, 01.05.2005

Ayşe Karşı Hijran Yavuzcan Yıldız

https://doi.org/10.1501/Tarimbil_0000000407

Cited By: 3

Öz

Tilapianın, Oreochromis niloticustuzlu suya direkt olarak transfer edilmesi durumunda gelişen sekonder stres yanıtı hematokrit, plazma glukoz, sodyum, potasyum, klorid ve kalsiyum ölçümleri ile değerlendirilmiştir. Balıklar doğrudan iki farklı deneysel tuzluluğa 9 ve 18 ppt 72 saatlik bir periyotta maruz bırakılmışlardır. İncelenen parametrelerden plazma glukoz, plazma Na+, K+, Cl- ve Ca++ deney süresince artış gösterirken hematokrit değerleri değişmemiştir. Bu çalışmada değerlendirilen parametreler gözönüne alındığında tilapianın tuzlu suya direkt transferinin strese neden olduğu, ancak stres yanıtının büyüklüğünün tululuk seviyesi ile ilgili olduğu belirlenmiştir

Anahtar Kelimeler

Tilapia, Oreochromis niloticus, tuzlu su, sekonder stres

Secondary Stress Response of Nile Tilapia, Oreochromis niloticus, After Direct Transfer to Different Salinities

Öz

The secondary stress response of Nile tilapia, Oreochromis niloticus after direct transfer to saline water was evaluated assessing the levels of hematocrit, plasma glucose, sodium, potassium, chloride and calcium. Fish were transferred directly from freshwater to two experimental salinity 9 and 18 ppt for 72 hours. Plasma glucose, Na+, K+, Cland Ca++ all increased however, hematocrit did not change throughout the 3 days exposure period. Considering the parameters measured in this study Nile tilapia appeared to exhibit a stress response to direct transfer to saline water, nevertheless, the magnitude of stress response was related to salinity level

Anahtar Kelimeler

Tilapia, Oreochromis niloticus, saline water, secondary stress

Kaynakça

• Avella, M., J. Berhaut and M. Bornancin. 1993. Salinity tolerance of two tropical fishes, Oreochromis aureus and Oreochromis niloticus. I. Biochemical and morphological changes in the gill epithelium. Journal of Fish Biology 42: 243-254.
• Barton, B. A. and G. K. Iwama. 1991. Physiological changes in fish from stress in aquaculture with emphasis on the response and effects of corticosteroids. Annual Review of Fish Diseases 1:3-26.
• Foo, J. T. W. and T. J. Lam. 1993. Serum cortisol response to handling stress and the effect of cortisol implantation on testosterone level in tilapia, Oreochromis mossambicus. Aquaculture 115: 145-158.
• Hrubec, T. C., J. L. Robertson and S. A. Smith. 1997. Effects of temperature on hematologic and serum biochemical profiles of hybrid striped bass (Morone chrysops x Morone saxatilis).The American Journal of Veterinary Research 58: 126-130.
• Iwama, G. K., J. C. McGeer and M. P. Pausluk. 1993. The effects of five fish anaesthetics on acid-base balance, hematocrit, blood gases, cortisol and adrenaline in rainbow trout. Canadian Journal of Zoology 67: 2065-2073.
• Lea Master, B. R., J. A. Brach, R. S. Fujico and R. M. Nakamura. 1990. Hematologic and blood chemistry values for Sarotherodon melanotheron and a red hybrid tilapia in freshwater and seawater. Comparative Biochemistry and Physiology 97A: 525-529.
• Mazeaud, M. M., F. Mazeaud and E. M. Donaldson. 1977. Primary and secondary effects of stress in fish: some new data with a general review. Trans. American Fisheries Society 106: 201-212.
• Pickering, A. D. 1992. Rainbow trout husbandry: management of the stress response. Aquaculture 100: 125-139.
• Robertson, L., P. Thomas, C. R. Arnold and J. M.Trant. 1987. Plasma cortisol and secondary stress response of red drum to handling, transport, rearing density, and a disease outbreak. The Progressive Fish-Culturist 49 (1): 1-13.
• Rotllant, J., M. Pavlidis, M. Kentouri, M. E Abad and L. Tort. 1997. Non-specific immune responses in the red porgy Pagrus pagrus after crowding stress. Aquaculture 156: 279-290.
• Schreck, C. B. 1990. Physiological, behavioral and performance indicators of stress. In: Biological indicators of stress in fish, (Ed. by S. M. Adams) American Fisheries Symposium 8, Bethesda, Maryland. 29-37.
• Siwicki, A. K. and D. P. Anderson, 1993. Immunostimulation in fish. In: Proceedings of the Nordiac Symposium on Fish Immunology, 19-22 May, Sweden.
• Smith, S. L. 1991. Introduction to fish physiology. Argent Lab., Redmond, WA, USA. 352 p.
• Stickney, R. R. 1986. Tilapia tolerance of saline waters: a review, The Progressive Fish Culturist 48:161-167.
• Suresh, A. V. and C. K. Lin. 1992. Tilapia culture in saline waters: a review. Aquaculture 106: 201-226.
• Watanabe, W. O., C. M. Kuo and M. C. Huang. 1985. Salinity tolerance of Nile Tilapia fry (Oreochromis niloticus), spawned and hatched at various salinities. Aquaculture 48:159-176.