Effect of different characteristics of attracting and controllable light on squid net catching efficiency
1998
Sakri Ibrahim | Sukree Hajisamae (University Putra Malaysia Terengganu Telipot, (Malaysia). Faculty of Applied Science)
Study was conducted to determine the relationship between intensities and types of lamp for squid fishing in relation to catching efficiency. The study was divided into two parts; the first part deals with attracting light system while the second part emphasizes the controllable light system. Result from the study shows that there is no significant difference on the catch per unit effort (kg/day) for the boats employing different intensities of light source, as well as for the boats that employed incandescent lamp and high pressure mercury lamp. Throughout the study, the catch comprised 68.9 percent mitre squid (Loligo chinensis), 26.2 percent siboga squid (Loligo sibogae) and 4.9 percent big fin reef squid (Sepioteuthis lessoniana). From the study, it was found that the intensity of light source could be reduced and type of lamp should be replaced by high pressure mercury lamp due to its longer life span and cheaper cost of operation. The catch with red and white spotlight lamps as the controllable light system also did not show any significant difference (P0.05).
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