Fingerling Stocking Densities Variation on Eel Culture in Hapas
Abstract
Although mostly eel species found in Indonesian waters, currently there is no commercial aquaculture of eels in Indonesia. This is mainly due to a lack of applicable aquaculture technique to seed nursing and growing up. To establishing culture system of Indonesian eel Anguilla bicolor bicolor that could be applied in small scale aquaculture, we performed eel growing up in hapas settled in pond (hapa-pond) and in floating net cage (hapa-cage). The effect of difference stocking density on survival and growth was observed.
Fingerlings, initial body weight 74,07 – 86,02 g/fish, were reared at stocking density 1.000 g/m3 and 2.000 g/m3 in hapa-pond over a 3-months period and fingerlings, initial body weight 67,40 ± 17,36 g/fish, were kept at stocking density 2.000 g/m3, 3.000 g/m3 and 4.000 g/m3 in hapa-cage over a 5-months period.
At the end of the rearing period, no significant differences were observed on survival and growth rate between stocking densities either in hapa-pond or hapa-cage. In hapa-pond, survival and growth rate were 97,85 – 98,15% and 0,91 – 1,21, respectively. In hapa-cage, survival in difference stocking density were 66,34±5,26 %, 51,70±0,82 % and 56,52±25,46 %, respectively and growth rate were 0,83±0,01, 0,84±0,06 and 0,88±0,09, respectively.
Keywords: Anguilla bicolor bicolor, growing up, hapas, Indonesian eel
paper presented at INDONESIAN AQUACULTURE CONFERENCE 2009, Indonesian Aquaculture Society, Yogyakarta, 27 – 29 October 2009
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