PHOTOTACTIC RESPONSES OF CLIMBING PERCH (ANABAS TESTUDINEUS) TO VARIOUS INTENSITIES AND COLORS OF LED UNDERWATER LAMPS: RECOMMENDATION FOR FUTURE RESEARCH

AHMADI , AHMADI (2018) PHOTOTACTIC RESPONSES OF CLIMBING PERCH (ANABAS TESTUDINEUS) TO VARIOUS INTENSITIES AND COLORS OF LED UNDERWATER LAMPS: RECOMMENDATION FOR FUTURE RESEARCH. PHOTOTACTIC RESPONSES OF CLIMBING PERCH (ANABAS TESTUDINEUS) TO VARIOUS INTENSITIES AND COLORS OF LED UNDERWATER LAMPS: RECOMMENDATION FOR FUTURE RESEARCH, 3 (2). pp. 114-129.

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Abstract

The present study aimed to investigate phototactic response of climbing perch (Anabas testudineus) to various intensities and colors of light emitting diode (LED) underwater lamps. Catches by traps equipped with lamps emitted six different light colors (red, green, yellow, blue, orange, and white) were compared with catches of control traps without any lamps. Each light color was estimated in three illumination levels. The trials consisted of 140-trap hauls per lamp type with a submersion time of 10 h. A. testudineus positively responded to all colors of the lamps regardless of its intensity. The light traps (except yellow and orange) were considerably higher in the number of catch as compared to the control (P<0.05). The daily averages of catch for male were 9 (2-24) fishes and 149 (28-399) g weights; while for female were 17 (1-43) fishes and 262 (22-785) g weight. The size of catch ranged of 60-170 mm total length and 4-84 g weight. The average catch per unit effort (CPUE) was from 0.04 to 2.36 fish trap-1 night-1, while the average yield per unit effort (YPUE) was from 0.32 to 40.76 g trap-1 trial-1. The mean condition factors of male and female were 1.41±0.18 and 1.52±0.25 respectively, indicating the fish are in better condition. The positive group responses of fish were more pronounced at the length sizes between 100 and 109 mm TL. Negative allometric growth pattern (b = 2.7255-2.8247) was observed in A. testudineus, implies that culture strategy should be developed. In addition, efforts to collect them from the wild for breeding and commercial purposes may benefit from this research. Keywords: Anabas testudineus, LED underwater lamp, negative allometric, growth type, CPUE, YPUE.

Item Type: Article
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User: Mr Arief Mirathan
Date Deposited: 30 Jan 2019 03:34
Last Modified: 30 Jan 2019 03:34
URI: http://eprints.ulm.ac.id/id/eprint/5112

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