Catch characteristics on stationary lift net using light emitting diode (LED) and kerosene lights in Pasuruan waters

Light in stationary lift nets (SLN) is important to the extent that it can determine the composition of species, size and number of fish caught. Different types of light are often used in aggregating certain types of fish. This study aims to find the best type of light for SLN and to determine the c...

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Bibliographic Details
Published inAquaculture, Aquarium, Conservation & Legislation Vol. 12; no. 2; pp. 490 - 501
Main Authors Fuad, Baskoro, Mulyono S, Riyanto, Mochammad, Mawardi, Wazir
Format Journal Article
LanguageEnglish
Published Cluj-Napoca Bioflux SRL 01.04.2019
Subjects
Aquatic sciences
Biology
Commercial fishing
Composition
Fish
Fisheries
Fishing
Kerosene
Light
Light emitting diodes
Mackerel
Marine fishes
Rastrelliger brachysoma
Species composition
Underwater
Weight
Madura Island
Indonesia
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Summary:Light in stationary lift nets (SLN) is important to the extent that it can determine the composition of species, size and number of fish caught. Different types of light are often used in aggregating certain types of fish. This study aims to find the best type of light for SLN and to determine the characteristics of the catch between light emitting diode (LED) and kerosene lights. The results showed that there were no significant differences in species composition of fish caught in both LED and kerosene lights. These types of lights do not affect the composition of fish species, but have a significant effect on the amount of catch. The most caught fish (target species) were short mackerel (Rastrelliger brachysoma) and yellowstripe scad (Selaroides leptolepis). The SLN operated with kerosene lights caught short mackerel (R. brachysoma) and yellowstripe scad (S. leptolepis) of bigger size compared to SLN with LED lights. The average length and weight of short mackerel caught with kerosene lights were 146.3 mm and 37.17 grams, respectively. The average length and weight of yellowstripe scad (S. leptolepis) caught with kerosene lights were 117.04 mm and 21.5 grams, respectively. However, only a small portion of catch, 4.5%, had already reached its mature size (Lm), while the rest of the catch (95.5%) had not reached its mature size. Similarly, only 11% of yellowstipe scad had reached its mature size (>Lm). Underwater LED lights seemed to be better than kerosene lights due to the amount of catch acquired, however the size of the catch was smaller compared to kerosene lights.
ISSN:1844-8143
1844-9166