AHMADI , AHMADI Phototactic response of climbing perch Anabas testudineus to different colors and light pattern of LED light traps. Phototactic response of climbing perch Anabas testudineus to different colors and light pattern of LED light traps.
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Abstract
Phototaxis of climbing perch (Anabas testudineus Bloch 1792) in a pond was examined by subjecting them to light-emitting diode (LED) light traps and control. A total of 711 specimens (total weight of 8.123 g) consisted of 318 males (3.530 g) and 393 females (4.593 g) were collected from a recapture experiment and used in the present one. Total length (TL) of the catch ranged from 62-110 mm. Total yield per unit efforts (YPUEs) for males and females were 706 g (39±28.22 g) and 919 g (51±31.85 g) respectively. There was no significant difference in the number of catches between the light traps and control or between continuous and blinking light traps (P>0.05). It can be pointed out that A. testudineus is able to differentiate various tested colours. The Fulton condition factor (K) values of 1.53±0.22 for male and 1.64±023 for female indicates that fishes were in good condition. Positive group responses of fish were more pronounced in lower size classes than that of higher ones. The size distribution of 80-89 mm TL provides the highest number of catch for male (41.82%) and female (35.20%). A. testudineus showed negative allometric growth pattern, implies that the culture management system should be refined. Key Words: Continuous light, blinking light, trap, LED, negative allometric.
| Item Type: | Article |
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| Subjects: | Q Science > Q Science (General) |
| Depositing User: | Mr Arief Mirathan |
| Date Deposited: | 21 Nov 2018 06:20 |
| Last Modified: | 21 Nov 2018 06:20 |
| URI: | http://eprints.ulm.ac.id/id/eprint/4599 |
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