Pengaruh Fotoperiode Lampu Hortisolis terhadap Perkembangan Embrio Lobster Air Tawar Cherax quadricarinatus

Purnomo, Bimo Altaf (2025) Pengaruh Fotoperiode Lampu Hortisolis terhadap Perkembangan Embrio Lobster Air Tawar Cherax quadricarinatus. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Cherax quadricarinatus atau lobster air tawar "Red Claw" merupakan spesies budidaya bernilai ekonomi tinggi, baik sebagai komoditas konsumsi maupun hewan hias. Salah satu kendala dalam pembudidayaan spesies ini adalah lamanya masa pengeraman telur secara alami. Inovasi inkubasi buatan yang dikombinasikan dengan lampu LED, khususnya jenis hortisolis, digunakan untuk mengatasi hal tersebut karena memiliki efisiensi energi tinggi, panas rendah, serta fleksibilitas kontrol spektrum cahaya. Penelitian ini bertujuan untuk mengetahui pengaruh fotoperiode cahaya lampu LED hortisolis terhadap perkembangan embrio C. quadricarinatus; meliputi morfologi, laju perkembangan, survival rate, dan abnormalitas stadia perkembangan. Perlakuan yang dilakukan yaitu fotoperiode 8L:16D (P1), 12L:12D (P2), dan 0L:24D (P0) dengan intensitas cahaya hortisolis 1500 lux. Pengamatan dilakukan sejak fase awal pembelahan sel (blastula). Hasil penelitian menunjukkan bahwa perbedaan fotoperiode lampu hortisolis tidak menyebabkan gangguan pada tahapan perkembangan embrio, justru dapat memperlambat durasi perkembangan yang dibuktikan dengan adanya perbedaan fase akhir embrio di perlakuan P1 (2 embrio fase post-embryo I dan 3 embrio fase post-embryo II) dan P2 (seluruh embrio berada di fase post-embryo I) dibandingkan P0 (seluruh embrio telah berada di fase post-embryo II). Survival rate embrio pada perlakuan P1 (96%) dan P2 (92%) sedikit lebih rendah daripada P0 (100%). Sementara itu, abnormalitas morfologi dan alat gerak ditemukan pada perlakuan P1 (4,16%) dan P2 (4,16%), dan tidak ditemukan pada P0. Dapat disimpulkan bahwa paparan cahaya hortisolis dengan variasi fotoperiode berdampak negatif terhadap laju perkembangan embrio lobster air tawar C. quadricarinatus karena memperlambat laju perkembangannya. Namun tidak berpengaruh negatif terhadap kualitas morfologi embrio dan tidak bersifat toksik atau mematikan karena tingkat kelangsungan hidup (survival rate) embrio tetap berada di atas 80%. ==================================================================================================================================
Cherax quadricarinatus, commonly known as the "Red Claw" freshwater crayfish, is a high-value aquaculture species cultivated both for consumption and as an ornamental animal. One of the main challenges in breeding this species is the prolonged duration of natural egg incubation. To address this issue, artificial incubation techniques combined with LED light particularly the hortisolis type, are being utilized due to their high energy efficiency, low heat emission, and flexible spectral control. This study aimed to examine the effects of hortisolis LED light photoperiods on the embryonic development of C. quadricarinatus, focusing on morphology, development rate, survival rate, and abnormalities at different developmental stages. The treatments applied included photoperiods of 8L:16D (P1), 12L:12D (P2), and 0L:24D (P0), with a constant light intensity of 1500 lux. Observations began from the early cleavage stage (blastula). The results showed that differences in photoperiod did not disrupt the normal stages of embryonic development. However, the exposure to hortisolis light photoperiods tended to slow down the rate of development. This was evident in the final developmental stages observed: embryos in P1 reached post-embryo I (2 embryos) and post-embryo II (3 embryos), while in P2, all embryos remained at post-embryo I. In contrast, embryos in P0 reached the more advanced post-embryo II stage. Survival rates in P1 (96%) and P2 (92%) were slightly lower compared to P0 (100%). Morphological and locomotor abnormalities were observed in both P1 and P2 treatments (4.16%) but were absent in the P0 group. In conclusion, exposure to hortisolis LED light with varying photoperiods negatively affected the rate of embryonic development in C. quadricarinatus by slowing its progression. However, it did not adversely affect embryo morphology or prove toxic or lethal, as survival rates remained above 80%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Cherax quadricarinatus, embrio, lampu hortisolis, fotoperiode, perkembangan embrio. Cherax quadricarinatus, embryo, hortisolis lamp, photoperiod, embryonic developments.
Subjects:	Q Science Q Science > QH Biology Q Science > QL Zoology Q Science > QL Zoology > QL435.A3 Crustacea
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Bimo Altaf Purnomo
Date Deposited:	01 Aug 2025 01:02
Last Modified:	01 Aug 2025 01:02
URI:	http://repository.its.ac.id/id/eprint/125451

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