Survival Rate and Growth Response of Humpback Grouper Seeds (Cromileptes altivelis) on Acclimatization to the Freshwater
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Biota laut yang sukses dibudidayakan di tambak air tawar adalah ikan bandeng, udang windu, dan udang vannamei. Sedangkan ikan kerapu bebek (Cromileptes altivelis) yang pasar eksportnya prospek belum pernah dicobanya. Penelitian ini ingin mengetahui pengaruh aklimatisasi benih ikan kerapu bebek ke air tawar terhadap survival rate dan respon pertumbuhannya. Menggunakan rancangan acak lengkap 5 perlakuan 4 x ulangan, dengan sampel benih kisaran panjang 12 cm, berat 22 gr. Aklimatisasi dari habitat bersalinitas 30 ppt ke 4 ppt. Perlakuannya adalah A0 penurunan salinitas 0,0 ppt/hari (kontrol), A0,5 (0,5 ppt/hari), A1 (1 ppt/hari), A1,5 (1,5 ppt/hari), dan A2 (2 ppt/hari). Data survival rate dianalisis dengan uji t (P≤0,05) hasilnya menunjukkan penurunan salinitas 0,5 ppt/hari 35 % berbeda nyata dengan kontrol 92,5 %, namun lebih unggul dibanding tiga perlakuan lainnya (A1, A1,5, dan A2) yang sudah mati semua sebelum mencapai 4 ppt. Sedangkan data laju pertumbuhan dianalisis dengan anova dilanjutkan uji duncan (P≤0,05) hasilnya menunjukkan A0,5 0,60 % tidak berbeda nyata dengan kontrol 0,61 % tetapi berbeda nyata (paling cepat) dibanding tiga perlakuan lainnya (A1, A1,5, dan A2). Kesimpulannya adalah ikan kerapu bebek mampu dibudidayakan pada air payau 4 ppt (mesohalin) melalui aklimatisasi dengan penurunan salinitas 0,5 ppt/hari.
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Referensi
Anggoro, S. et al, 2013, Domesticated Tiger Grouper (Epinephelus fuscoguttatus), Journal Of Management Of Aquatic Resorces, Volume 2 (3):119-127
Irianto, A. 2005. Teleostei Fish Pathology. Gajah Mada University Press, Yogyakarta.
Kultz, D. 2015, Physiological Mechanisms used by Fish to Cope with Salinity Stress, Journal of Experimental Biology 218:1907-1914
Maryadi, 2008, Acclimatization of Tiger Shrimp (Penaeus monodon) Seeds in an effort to Cultivating an environment outside of his life: a case in Lamongan, Central Agency for Competitiveness Policy assessment and application of technology, Jakarta, m. tech. Ling, vol. 4 (2):143-152.
Oktarina, R.M., 2009, influence the frequency of soaking in fresh water on performance growth of Humpback Grouper (Cromileptes altivels), (Thesis), Faculty of fisheries and marine sciences, Institut Pertanian Bogor
Subiyakto. S. & Cahyaningsih. S. 2003. Seeding Grouper Household Scale, Agromedia Pustaka, Jakarta.
Purcell, M.K. et al, 2008, Adaptation as a potential response to sea-level rise: a genetic basis for salinity tolerance in populations of a coastal marsh fish, evolution of Aplications, 1 (1): 155 – 160.
Rachmawati, D. 2012, Tiger Snail Domestication (Babylonia spirata L.) Through the optimization of Media and feed (Dissertation). Coastal Resources Management Doctoral Program. Graduate Program. University Of Diponegoro. Semarang.
Rinen, P.H., 2004, Effects of abrupt cold shock on stress responses and recovery in brown trout exhausted by swimming, Journal of Fish Biology 64:1015 – 1026
Willmer, P. et al, 2005, Environmental Physiology of Animals 2nd, Wiley Blackwell, London.