• Suko Ismi Balai Besar Riset Budidaya Laut dan Penyuluhan Perikanan Gondol-Bali



cantang grouper, deformities, hatchery, losses


Cantang grouper is a hybrid between female tiger grouper (Epinephelus fuscoguttatus) and male giant grouper (Epinephelus lanceolatus) cantang grouper is currently in big demand for aquaculture because it has fast growth. Seed requirement of this fish can be supplied from hatcheries production, one of the constraints of the hatchery production it is deformities. The purpose of this study is to know the kinds of deformities that occur in fish seeds produced from the hatchery. The study was conducted in  Gerokgak District , Buleleng Regency, Bali. Data obtained by survey and direct observation in several hatcheries and  collected was analyzed descriptively. The results showed that highest deformity were open gills reached 90.1%, followed by deformity of tail  72.6%, head and mouth  reached 23.8% and backbone (kiposis, lordosis skiolosis) reached 20.8%. High deformities in the resulting seed will result in losses to the hatchery because the seed can't sell.


K. Sugama, M.A. Rimmer, S. Ismi, I. Koesharyani, K.Suwirya S, N.A. Giri, V.R. Alava, “Hatchery management of tiger grouper (Epinephelus fuscoguttatus) : a best-practice manualâ€, Australian Centre for International Agricultural Research (ACIAR). 66 p, 2012.

S. Ismi, “Perkembangan pembenihan ikan laut di Baliâ€, dalam Prosiding pertemuan Ilmiah Nasional Tahunan VII Isoi,, Pangkal Pinang, Bangka Belitung, 6-7 Oktober 2010, hal. 25-30, 2011.

S. Ismi, “ Aplikasi teknologi pembenihan kerapu untuk mendukung pengembangan budidaya laut†J. Ilmu dan Teknologi Kelautan Tropis, vol. 6, no.1, hal. 109-119, 2014.

S. Ismi, dan Y. N. Asih, â€Pengamatan perkembangan benih kerapu hybrid persilangan antara kerapu macan (Epinephelus fuscoguttatus) dan kerapu kertang (Epinephelus lanceolatus)â€, dalam Prosiding Seminar Nasional Kelautan VII, Surabaya, 18 Juli 2011, hal. 100-104, 2011a.

S. Ismi, dan Y. N. Asih, “Perkembangan telur dan tingkah laku larva kerapu hybrid cantangâ€, Dalam Prosiding Forum Inovasi Teknologi Akuakultur, Bali19-21 Juli 2011. hal. 9-12, 2011b.

S.V Siar, W.L. Johnston, S.Y. Sim, “Study on economics and socio-economics of small-scale marine fish hatcheries and nurseries, with special reference to grouper systems in Bali, Indonesiaâ€, Report Prepared under Asia-Pacific Economic Cooperation (APEC) Project FWG 01/2001: Collaborative APEC Grouper Research and Development Network, Asia-Pacific Marine Finfish Aquaculture Network Publication 2/2002. Network of Aquaculture Centres in Asia-Pacific :Bangkok, Thailand. 14 p, 2002.

S.V. Heerin, “Technology transfer-backyard hatcheries bring jobs, growth to Bali. Global Aquaculture Advocateâ€, Desember 2002, p. 90-92 , Desember 2002.

S. Ismi, Y.N. Asih, B. Slamet dan K.T. Suwirya,†Pengaruh kepadatan Nannochloropsis sp. pada pemeliharaan larva kerapu bebek (Cromileptes altivelis) secara terkontrolâ€, J. Ris. Akuakulture, vol. 7, no. 3, hal. 407- 419, 2012.

S. Ismi, Wardoyo, Tridjoko dan E. Setiadi,†Pengaruh penggunaan skimmer terhadap abnormalitas pada pemeliharaan larva kerapu bebek (Cromileptes altivelis)â€, J. Ris. Akuakultur, vol. 2, no.1, hal.19-23, 2007.

Anonim,â€Pedoman Umum Cara Pembenihan Ikan yang Baik (CPIB). Departemen Kelautan dan Perikanan Direktorat Jendral Perikanan Budidaya Direktorat Pembenihan. 61 p., 2008.

Z. Ma, D.A.Y Tan and J.Q. Qin, “Jaw deformities in the larvae of yellowtail king fish (Serioloa lalandi Valenciennes, 1833) from two groups of brood stockâ€, Indian Journal of Fisheries, vol.61, no.4, p. 137-140, 2014.

C.H. Daouglas, A.N. Economou and I. Bantavas, “Osteological abnormalities in laboratory reared sea-bass (Dicentrarchus labrax) fingerlingsâ€, Aquaculture, vol.97, p. 169-180, 1991.

S.K. Sahoo, S.S. Giri, T. Swain and T.K. Sahu,â€Observations on some common abnormalities in induced bred Clarius batrachus hatchlingsâ€. Journal of Inland Fish Society of India, vol.36, p. 67-71, 2004.

S.K. Sahoo, S.S. Giri, S. Chandran and A.K. Sahu, “Effect of ovaprim doses and latency periods on induced spawning of Clarias batrachus: Observation on larval deformityâ€. International Journal of Experimental Biology, vol. 45, p. 920-922, 2007.

C. Boglione, E. Gisbert, P. Gavaia P, P.E. Witten, M. Moren, S. Fontagn and G. Koumoundouros, “Skeletal anomalies in reared European fish larvae and juveniles. Part 2: main typologies, occurrences and causative factorsâ€, Reviews in Aquaculture, vol. 5, p. 121-167, 2013.

N. KazlauskienÄ—, E. LeliÅ«na, and V. Kesminas, “Peculiarities of opercular malformations of salmon (Salmo salar L.) juveniles reared in the Žeimene salmon hatcheryâ€, Acta Zool, Lituan, vol.16. p. 312–316, 2006.

A.H. Al-Harbi, “Skeletal deformities in cultured common carp Cyprinus carpio L.†Asian Fisheries Science, vol.14, p. 247-254, 2001.

S. Ismi, Y.N. Asih, B. Slamet dan K.T. Suwirya, “Pengaruh kepadatan Nannochloropsis sp. pada pemeliharaan larva kerapu bebek (Cromileptes altivelis) secara terkontrolâ€. J. Ris. Akuakulture, no. 7, vol.3, p. 407 - 419, 2012.

G. Koumoundouros, P. and M. Kentouri, “The effect of rearing conditions on development of saddleback syndrome and caudal fin deformities in Dentex dentex (L)â€. Aquaculture, vol. 200, p. 285-304, 2001.

C. Boglione, F. Gagliardi, Scardi and S. Cataudella, “Skeletal descriptors and quality assessmentin larvae and post-larva of wild-caught and hatchery-reared gilt-head sea bream (Sparus aurata L.)â€, Aquaculture, vol. 192, p.1-22, 2001.

O. Fagbuaro, Inbreeding of mouth malformed and crocked back Clarias gariepinus. Journal of Agriculture Science and Technology, vol. 3, no.12, p. 44-50, 2009.

H. Amitabh and A.M. Firoz, 2010. A wild specimen of Indian Carp, Cirhinus mrigala (Hamilton, 1822) with multiple Vertebral Deformities. World Journal of Zoology, vol.5, p. 167-177,2010.

D. Tave, J.Y. Jo and D.S. Kim, “Gross Abnormalities in Tilapiaâ€. Fisheries and Aquatic Science. no. 14, p. 148-160, 2011.

M.H. Larsen, J.I. Johnsson, J. Näslund, S.T. Thomassen and K. Aarestrup, “Reduced rearing density increases postrelease migration success of Atlantic salmon (Salmon salar) smoltsâ€, Can, J. Fish. Aquat. Sci., Vol. 73, p. 804–810. 2016.

P. Malekpouri, M. Mesbah and A. Rezaie, . Aetiology of skeletal deformity in a Barbus grypus (Heckel, 1843) fish: clinical and radiological studies. Comparative Clinical pathology, vol.24, p. 201-206, 2015.

A. Kanazawa, “ Essential fatty acid and lipid requirement of fish, Nutrition and feeding in fishâ€, Academic Press, London. p.281- 298, 1985.

J.S. Weis and P. Weis, “Effects of environmental pollutans on early fish developmentâ€, Aqua. Sci., vol.1, p. 45-73, 1989.

T. Akiyama, T. Murai, K. Mori, “Role of triphophan metabolites in inhibition of spinal deformity of Chum Salmon fry caused by tryptophan deficiencyâ€, Bull. Jpn. Soc. Sci. Fish, vol.52, p.1249-1254, 1989.

K. Dabrowski, S. Hinterleither, C. Sturmbauer, N. El-Fiky and W. Wieser, “Do carp larvae require vitamin Câ€, Aquaculture, vol.72, p. 295-306. 1988.

R. Frischknecht, T. Wahli, W. Meier, “Comparison of pathological changes due

to deficiency of vitamin C, vitamin E and combinations of vitamin C and E in rainbow trout, Oncorhynchus mykiss (Walbaum)â€, Journal of Fish Diseases no.17:31-45. 1994.

S. L. Sagala, S. Ismi dan N.A Giri, “The effect of Vitamin C (L-Ascorbyl Monophosphate-MG) on the deformity performance of humback grouperâ€, Indonesian Aquaculture Journal, vol. 5, no.1, p.30-36, 2010.

M.R. Fraser, and R. De Nys, A quantitative determination of deformities in barramundi (Lates calcarifer; Bloch) fed a vitamin defi-cient diet. Aquaculture Nutrition, vol.17, no.3, p. 235 – 243, 2010,