Received: 23-10-2012
Accepted: 25-12-2013
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Effectof Temperature and Salinity on EmbryonicDevelopment of Tiger Grouper (Epinephelus fuscoguttatus)
,
Tran The Muu
1
Keywords
Epinephelus futcoguttatus, salinity, temperature, tiger grouper
Abstract
The experiments were carried out to evaluate the effects of temperature and salinity on embryonic development of the Tiger grouper (Epinephelus futcoguttatus)and to determine the optimal temperature and salinity for incubation of Tiger grouper eggs. The fertilized egg of Tiger grouper was incubated in a series of 1L-glass beakers at a density of 100 eggs/L and divided two separated trials. The first experiment was conducted at five temperature levels of 23ºC, 26ºC, 29ºC, 32ºC, 35ºC, each treatment was run in triplicate. The second experiment was implemented at different salinity of 23‰, 26‰, 29‰, 32‰, 35‰. The study results clearly show that the highest hatching rate (89.6 ± 3.2%) and the lowest deformity rate (6.3 ± 0.4%) were obtained in the treatment which were incubated at 29oC compared to the others (P<0.05). The second experiment demonstrated that the salinity of 32 -35‰ are suitable for incubation of tiger grouper egg as the highest hatching rate of 83.4 -85.6% and the lowest deformity rate of 1.79 -1.85% were obtained (P<0.05). In conclusion, among the treatments, the temperature of 29ºC and salinity of 32 and 35‰ are the best conditions for Tiger grouper eggs incubation.
References
Afero F., S. Miao & A.A. Perez (2009). Economic analysis of Tiger grouper, Epinephelus fuscoguttatusand humpback grouper, Cromileptes altiveliscommercial cage culture in Indonesia. Aquaculture International 18:735-739.
Alderdice D.F. (1988). Osmotic and ionic regulation in teleost eggs and larvae. In: W.S. Hoar and D.J. Randall (Editors), Fish Physiology, Vol. 11, Part A. Academic Press, San Diego, CA, pp. 163-251.
Apostolopoulos J.S. (1976). Combined effect of temperature and salinity on the hatching rate, hatching time and total body length of newly hatched larvae of the Japanese red sea bream Pagrus major. La Mer 14: 23-30.
Apostolos Mihelakakis & Chikara Kitajima (1994). Effect of temperature and salinity on incubation period, hatching rate and morphogenesis of the silver sea bream, Sparus sarba(Forskal, 1775). Aquaculture 126: 361-371.
Buckley L.J., T.M. Bradley and J. Allen-Guil-mette (2000). Production, quality and low temperature incubation of eggs of Atlantic Cod Gadus morhuaand haddock Melanogrammus aeglefinusin captivity. Journal of the World Aquaculture Society 31: 22-29.
Heemstra P.C. & J.E. Randall (1993). FAO Fisheries Synopsis No. 125, vol. 16. FAO Species Catalogue, vol. 16. Groupers of the World. FAO Fisheries Synopsis. Pp. 248-249. FAO, Rome.
Kawahara S., A.J. Shams, A.A. Al-bosta, M.H. Mansoor and A.A. Al-Baqqal (1997). Effects of Incubation and Spawning water Temperature and Salinity on egg development of the Orange-Spotted Grouper (Epinephelus coioides, Serranidae). Asian Fisheries Science (9): 239-250.
Kujawa R., A. Mamcarz and D. Kucharczyk (1997). Effect of temperature on embryonic development of asp (Aspius L.). Polskie Archi-wum hydrobiologii 44: 139-143.
Lê Xân (2006). Nghiên cứu xây dựng quy trình công nghệ sản xuất giống và nuôi thương phẩm một số loài cá song (Epinephelus sp.)phục vụ xuất khẩu. Báo cáo tổng kết đề tài KHCN cấp Nhà nước. Mã số KC06.13.NN. Tài liệu lưu trữ tại Viện nghiên cứu NTTS 1.Trung tâm Thông tin Tư liệu Quốc gia.
Lê Xân (2010). Nghiên cứu xây dựng quy trình công nghệ sản xuất giống và nuôi thương phẩm một số loài cá biển có giá trị kinh tế cao. Báo cáo tổng kết đề tài KHCN cấp Nhà nước. Mã số KC06.04/06-10. Tài liệu lưu trữ tại Viện nghiên cứu NTTS 1.Trung tâm Thôngtin Tư liệu Quốc gia.
Lê Xân & Nguyễn Hữu Tích (2011). Ảnh hưởng của nhiệt độ và độ mặn tới quá trình phát triển phôi của cá hồng bạc Lutjanus argentimaculatus.Tạp chí Nông nghiệp và phát triển nông thôn.Bộ Nông nghiệp và phát triển nông thôn, số 177, pp 67-70.
Toledo J.D., N.B. Caberoy and G.F. Quinitio (2004). Environmental factors affecting embryonic development, hatching rate and survival of early stage larvae of the grouper (Epinephelus coioides). Advances in Grouper Aquaculture. Edited by M.A. Rimmer, S. McBride and K.C. Williams ACIAR Monograph 110.