PENGARUH MINYAK CUMI PADA UMPAN BUBU DASAR TERHADAP HASIL TANGKAPAN IKAN-IKAN KARANG
ABSTRACT: Bottom trap have
been used widely by coastal communities in North Sulawesi to catch coral
fishes, since it simple in design, cheaper and easy to manage with a small
boat. Unfortunately, the fishing practice of the traditional trap is usually
conducted in destructive way, where fishermen cover the gear with live coral to
attract fishing target. Although the
gear’s design has evolved over centuries, there is still potential for
improving its catching efficiency and selectivity. An attempt to understand the
fishing process of bottom trap should therefore be focused on bait and how its
chemical composition, visual and physical properties may stimulate target species
to attack the bait and captured. Addition of squid liver oil to the bait could
increase the fishing power of bottom trap gear. But scientific information’s
about its applications are not available yet. Therefore, the objective of this
research was to study the effect of squid liver oil on bait of bottom trap
toward the capture of coral fishes. This research was done in Bangka Strait
North of Minahasa, based on experimental method. Six units of bottom trap
(bamboo) were operated ten nights in collecting data; where tree units of them
used scad mackerel bait that injected by squid liver oil, and tree other units
just used scad mackerel bait without squid liver oil; and the capture data were
analyzed by ttest. The catch was 117 fish in total consist of 2 genera; 74 fish
was caught by scad mackerel bait with squid liver oil, and 43 fish was caught
by bait without squid liver oil. Analysis of ttest show that t0=
8.908>t0.05; 5= 3.250; which means that the addition of squid liver oil on
bait could increase the catch of bottom trap.
Key words: Bottom trap, squid
liver oil, baits, coral fishes
Penulis: Emil Reppie
Kode Jurnal: jpperikanandd100096