BUDIDAYA IKAN KERAPU (EPINEPHELUS TAUVINA FORSSKAL, 1775) DAN IKAN BERONANG (SIGANUS CANALICULATUS PARK, 1797) DALAM KARAMBA JARING APUNG DENGAN SISTIM POLIKULTUR
ABSTRACT: The aim of the
present research was to evaluate the daily growth ratio, food conversion ratio
and mortality of grouper (Epinephelus tauvina) and rabbit fish (Siganus
canaliculatus) in floating net with polyculture system. This experiment was done at the coastal area
of Tomini Bay in the North Sulawesi Province.
The observations were done every two weeks for three months from August
- November 2014. Twenty five groupers
(62.41 grams in ABWo) and twenty five rabbit fish (52.2 grams in ABWo) were
used for polyculture experiment, while fifty groupers (56.71 grams in ABWo) for
monoculture. The results indicated that
the daily individual growth of Epinephelus tauvina on polyculture was 1.29%,
with food conversion ratio 6.1, while it on monoculture was 1,18%, with food
conversion ratio 6.4. The daily
individual growth of Siganus canaliculatus on polyculture was 0,8%, with food
conversion ratio 3.8. Mortality for all
species studied were 0%. The present
research showed that the polyculture system was better than monoculture
system. The future studies suggest that
the polyculture system in the floating net may be developed and applied as a mariculture
model in the North Sulawesi Province for prosperous life of fisherman.
Keywords: Epinephelus
tauvina, Siganus canaliculatus,
polyculture system, floating net, prosperous life, fisherman
Penulis: Carolus Paulus
Paruntu
Kode Jurnal: jpperikanandd150020
