| Summary: | Various fishing gears are being used for
harvesting fish and shrimp in Barito River, Indonesia. However, the use of
lighted traps is still poorly studied. A set of fishing gears associated with
light emitting diode (LED) and incandescent lamps was used as sampling tools.
The trials consisted of 113-trap hauls/lamp type using 1-night submersion time
of 15 h. The light traps were standardized to a catch per unit effort (CPUE).
The light traps sampling accounted for 397 specimens assigned to 11 species of
7 families. There was highly significant difference in the number of catches
between shrimp and fish (P<0.001). Shrimp sizes ranged of 24–85 mm total
length and 0.3–10 g weight, while for fish 27–310 mm and 0.4–101 g. Yellow and
red LED light traps seemed to be effective in catching Macrobrachium
rosenbergii as well as white LED ones for Oxyeleotris marmorata. Both species
solely showed positive allometric growth type (b = 3.42 and 3.28), while other
species displayed negative allometric growth pattern (b = 0.82–2.71) with the
condition factor (K) values ranged of 0.36–1.56. A new native species
Macrobrachium sp. were found and considered as multichromatic species. The size
and shape of the light traps did not affect number of catch. The mean CPUEs for
incandescent and LED light traps were 0.07±0.06 and 0.13±0.20 fish net-1
night-1. No significant difference in the relative catching efficiency between
both light trap types was observed.
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