Pengaruh Cahaya Lampu LED (Light Emitting Diode) Terhadap Komposisi Ikan Hasil Tangkapan di Desa Paciran, Kabupaten Lamongan.

Wilatikta, Aprilantia (2023) Pengaruh Cahaya Lampu LED (Light Emitting Diode) Terhadap Komposisi Ikan Hasil Tangkapan di Desa Paciran, Kabupaten Lamongan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Cahaya merupakan faktor ekologi yang penting bagi organisme laut, termasuk ikan. Cahaya dapat tertangkap melalui fotosensori di organ mata ikan, kemudian diproses di otak sebagai informasi untuk merangsang gerakan dan perilaku. Respon ikan terhadap cahaya dikenal dengan fototaksis dimana fototaksis dipengaruhi oleh umur dan kematangan gonad. Pada saat ini banyak dikembangkan metode penangkapan ikan berbasis lampu untuk menghasilkan cahaya yang dapat merangsang perilaku ikan untuk bergerak mendekati alat tangkap. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh cahaya lampu LED terhadap komposisi dan kematangan gonad/sexual maturity ikan hasil tangkapan di Desa Paciran, Kabupaten Lamongan. Penelitian ini menggunakan empat perlakuan lampu, satu lampu sebagai kontrol yaitu lampu eksisting (LE) yang berwarna putih, tiga jenis lampu LED yaitu LHU (lampu hijau underwater) dengan kedalaman lampu 3 meter dari permukaan laut, LHS (lampu hijau surface), dan LHUS (lampu hijau underwater dan surface). Dilakukan pengukuran panjang total tubuh pada cuplikan 30 individu pada masing-masing spesies kemudian dibandingkan dengan ukuran pertama kali matang gonad/Length at first maturity (Lm). Hasil penelitian menunjukkanperlakuan lampu yang memiliki jumlah tangkapan paling banyak adalah LHU (472 individu). Spesies yang tertangkap seluruhnya terdiri dari 12 spesies yang termasuk golongan ikan pelagis bernilai ekonomis. Sebagian besar spesies terdistribusi di seluruh perlakuan. Spesies yang paling banyak tertangkap adalah R. brachysoma dan R. kanagurta, diikuti oleh T. ilisha, G. minuta, S. lemuru, S. leptolepis, S. jello, S. fimbriata, H. kelee, E. thoracata, T. lepturus, S.crumenophthalmus. Seluruh spesies tertarik dan mendekati sumber cahaya (fototaksis positif) disebabkan oleh ketersediaan makanan di dekat sumber cahaya dan perilaku schooling. Sebagian besar ukuran panjang total tubuh hasil tangkapan lebih kecil dibandingkan ukuran pertama kali matang gonad (Lm). Perlakuan LHU dan LHS mampu menarik ikan dewasa/mature (≥Lm) lebih banyak dibandingkan perlakuan LE dan LHUS
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Light is an important ecological factor for marine organisms, including fish. Light can be captured through photosensory in the fisheye organs, then processed in the brain as information to stimulate movement and behavior. The response of fish to light is known as phototaxis where phototaxis is influenced by the age and maturity of the gonads. At this time many lamp-based fishing methods are developed to produce light that can stimulate fish behavior to move closer to fishing gear. The purpose of this study was to determine the effect of LED light on the composition and sexual maturity of fish caught in Paciran Village, Lamongan Regency. This study used four lamp treatments, one lamp as a control, namely existing lights (LE) which are white, three types of LED lamps, namely LHU (underwater green light) with a lamp depth of 3 meters from sea level, LHS (surface green light), and LHUS (underwater and surface green light). Total body length measurements were measured at least 30 individuals in each species and then compared with the size of the first gonadal maturity (Lm). The results showed that the lamp treatment that had the highest number of catches was LHU (472 individuals). The species caught consist of 12 species that belong to the group of pelagic fish of economic value. Most species are distributed throughout the treatment. The most widely caught species are R. brachysoma and R. kanagurta, followed by T. ilisha, G. minuta, S. lemuru, S. leptolepis, S. jello, S. fimbriata, H. kelee, E. thoracata, T. lepturus, and S. crumenophthalmus. The entire species is attracted to and close to the light source (positive phototaxis) due to the availability of food near the light source. Most of the total body length of the catch is smaller than the size of the first mature gonads (Lm). LHU and LHS treatments are able to attract more mature fish (≥Lm) than LE and LHUS treatments.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	cahaya, fototaksis, perilaku ikan, sexual maturity; Fish behaviour, light, phototaxis, sexual maturity
Subjects:	Q Science > QH Biology S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Aprilantia Wilatikta
Date Deposited:	14 Sep 2023 03:18
Last Modified:	14 Sep 2023 03:19
URI:	http://repository.its.ac.id/id/eprint/102407

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