SELEKTIFITAS ALAT TANGKAP TRAMMEL NET TERHADAP UDANG PENAEID DI KABUPATEN TAKALAR PROPINSI SULAWESI SELATAN

Muhammad Jamal

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.
Keywords : Penaeid, Trammel net, selectivity, Takalar


Full Text:

PDF

Refbacks

  • There are currently no refbacks.