SELEKTIFITAS ALAT TANGKAP TRAMMEL NET TERHADAP UDANG PENAEID DI KABUPATEN TAKALAR PROPINSI SULAWESI SELATAN
ABSTRACT: The capture of
undersized target fish and by-catch fish as a result of the use of unselective
fishing gear has become a major problem nowadays. The reality that Trammel Net
selectivity still unsustainable making the gears unfriendly for the
environment. This research is aimed to identify the size and the species of
shrimps caught by trammel net and to evaluate the mesh size selectifity level
of this gear. The results showed that there were about 63% of White Shrimp
(Penaeus merguiensis) and 37% Tiger Shrimp (Penaeus monodon) from the total
penaeid captured by trammel net with monofilament mesh size of 1.50 inches.
Furthermore, the amount of White Shrimps and Tiger Shrimps captured by trammel
net with net monofilament mesh size 1.75 inches were 60% and 40%, respectively,
of the total shrimps captured. Meanwhile, trammel net with mesh size 2.00
inches caught about 58% of White Shrimps and 42% of Windu Shrimps of the total
captured shrimps. Based on these data, the selectivity curve reached the peak
at R = 4.46 and the selection range was 50% with relative efficiency was in the
range of 2.70 to 6.14. The selectivity curve was ramp or asymmetrical, in which
the left side of the curve is much shallower than the right side. This means
that the trammel net is more effective in catching small penaied shrimps.
Penulis: Muhammad Jamal
Kode Jurnal: jpperikanandd150188
