Mochamad Arief Sofijanto*
Department of Fisheries, Indonesia
*Corresponding author: Mochamad Arief Sofijanto, Department of Fisheries, Hang Tuah University, Indonesia
Submission: September 14, 2021;Published: November 12, 2021
ISSN 2578-031X Volume4 Issue3
In several fishing locations in Indonesia, many purse seine vessels use lights to lure fishes
at night. Until now, it is suspected that there has been a waste of energy in the operation of the
lighted purse seines. This waste occurs because the type of lamp used to lure fish is a metal
halide (MH) lamp. This type of lamp is very bright but uses a large amount of electricity (1,500
watts/pc). Besides, the shape of the lamp is spherical so that most of the light energy is wasted
because it spreads in all directions (omnidirectional).
Currently, it is not known the level of wastage of light energy due to the shape of the lamp. Also not known the level of wastage of fuel oil. Therefore, it is necessary to conduct research to examine the value of MH lamp light inefficiency and fuel inefficiency in MH lamp generator set. Experimental research methods can be carried out to determine the inefficiency of the MH lamp on fishing vessels and the fuel consumption of the generator set to turn on the MH lamp on the purse seines.
One method of catching fish is the use of fishing gear that relies on fish attractors in the form of light fishing. In the field, fishermen do not care about energy inefficiency and light inefficiency, which can actually save operational costs. By optimizing light energy, it is expected to use other types of lamps that are more energy efficient, such as LED lamps. By optimizing light energy on LED lights that have small electrical power but can illuminate the waters with a large light intensity.
Research with the aim of obtaining light energy efficiency data and fuel energy on a lighted
purse seines. Furthermore, data on total fuel wastage will be obtained from all lighted vessels.
With the data on the operational cost savings of the lamp generator on a fishing vessel under study, it is hoped that data can be obtained on other vessels that also
use MH lamps both at the research site and in other areas. Metal
halide lamps (Figure 1) are known as lamps that waste energy,
cause pollution, the light produced contains ultraviolet (UV) and
infrared (IR) rays and most of the electrical energy is converted
into heat energy . The effusion value (lm/W) is relatively low
compared to LED lamps . The lighting pattern of MH lamps
spreads in all directions . The light needed to attract fish under
the water surface is light that exposes the surface of the water .
MH lamps are more than 75% inefficient because they are scattered
in all directions (omnidirectional) because the MH lamp is in the
form of a bulb (spherical) [4,5].
In contrast to other countries outside Indonesia, which have switched to a new type of lamp, namely light emitting diode (LED) lamps as fish lure lamps (Figure 2). This type of lamp is smaller in electrical power but has a higher light (lumen) so that it can save electrical energy and operating costs. Besides, this type of lamp is shaped as a one-way lamp so that the direction of the light can be focused forward towards the waters where there are schools of fish below the surface of the water. So that there is no light that illuminates the sky which is actually not useful for attracting fish.
Figure 1: Lamp fishing vessel at Yuwana middle java.
Figure 2: Lamp fishing vessel at Vietnam and Japan.
© 2021 Mochamad Arief Sofijanto. This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and build upon your work non-commercially.