Abstract
Fishermen generally use light as a common way to attract fish in the fishing industry. This study aimed to design a model of an underwater fishing using Light Emitting Diode (LED) lamp which is less costful and suitable for fishermen of Tanzania. Most fishermen currently use kerosene based lamps like candela which consumes lots of energy leading to high cost in terms of money used to regenerate the energy. This running cost automatically rises up the price of fish in the market. Thus with the use of LED lamp the cost will be reduced. The findings from this study showed that the LED lamp consumes little amount of energy (energy saving) compared to candela lamp which consumes 6 liters of kerosene per 36 hours which is equivalent to three nights, while the LED lamp takes 7 batteries at once for 36 hours. The 6 liters of kerosene cost around 7 USD and that of 7 batteries cost is near 2 USD. The LED lamp can be accessed by only 15 USD the price which is nearly half the price of the candela lamp. The candela lamp in the market is sold around 31 USD. This shows that LED lamp is more efficient in terms of conserving energy and cost effective than candela lamp. It is recommended that fishermen in the fishing industry in Tanzania should employ the usage of underwater LED fishing lamps as they are energy efficient. This will help the fishermen of Tanzania to undertake the fishing activity at low cost which will result to the decrease of price of fish in the market. This shows that this LED lamp has high efficiency and effectiveness to be used by fishermen compared to traditional method used by majority of them.
Highlights
The findings from this study showed that the Light Emitting Diode (LED) lamp consumes little amount of energy compared to candela lamp which consumes 6 liters of kerosene per 36 hours which is equivalent to three nights, while the LED lamp takes 7 batteries at once for 36 hours
It is recommended that fishermen in the fishing industry in Tanzania should employ the usage of underwater LED fishing lamps as they are energy efficient
Overwater fishing lamps are always suspended near the water surface by hanging them on the rod which is tighten on the boat where they give out light to attract fish, for example candela lamps [4] [5]
Summary
Examples of widely used fishing lamps include filament lamps, halogen tungsten lamps, metal halide lamps and candela lamps, all of them belonging to thermal light source. Overwater fishing lamps are always suspended near the water surface by hanging them on the rod which is tighten on the boat where they give out light to attract fish, for example candela lamps [4] [5]. On the other hand underwater fishing lamps are dipped into water for the same purpose, for example Light Emitting Diode (LED) lamps. Overwater fishing lamp is suspended near the water surface, and half of the light is wasted, because the water surface is like the mirror which reflects (sends back) half of the light up in air. While with an underwater fishing lamp, you do not lose any light all the light from the lamp spreads underwater and attracts more fish [8] [9]
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