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All Journal Kenanga : Journal of Biological sciences and Applied Biology NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Kelautan dan Perikanan Indonesia Jurnal Riset Sosial Humaniora dan Pendidikan
Badratun Nafis
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Social Sciences Veterinary

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Elevated temperatures increase chlorpyrifos toxicity in nile tilapia (Oreochromis niloticus) larvae Badratun Nafis; Firdus Firdus; Muhammad Nasir; Ilham Zulfahmi
Depik Vol 14, No 1 (2025): MARCH 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.1.43227

Abstract

Global warming and the extensive use of chlorpyrifos pose serious threats to the hatching success, growth, and survival of Nile tilapia larvae (Oreochromis niloticus). This study aimed to evaluate the combined effect of chlorpyrifos toxicity and elevated temperatures on tilapia larvae. A completely randomized design (CRD) was used with three temperature levels (28C, 31C, and 34C) and two chlorpyrifos concentrations (0 g/L and 32 g/L), totaling six treatments with three replicates each. Parameters observed included hatching rate, daily growth rate (DGR), specific growth rate (SGR), absolute growth rate (AGR), and malformation rate.Measurements were conducted daily from the first day of hatching until the end of the larval phase (Day 8). Results showed the highest hatching rate (85.33%) was achieved at 34C without chlorpyrifos, while the lowest rate (20%) occurred at 28C with chlorpyrifos exposure on Day 2. DGR and SGR significantly decreased at 34C with chlorpyrifos exposure, reaching 0.0003 g/day and 3.73%/day, respectively, compared to 28C without chlorpyrifos (0.0011 g/day and 10.78%/day). AGR remained stable across all temperatures, showing no significant differences with or without chlorpyrifos. The malformation rate, including abnormalities such as lordosis and kyphosis, increased with higher temperatures and chlorpyrifos exposure, with the highest rate (25%) recorded at 34C with 32 g/L chlorpyrifosKeywords:ChlorpyrifosNile TilapiaHatching RateLarval Growth
Co-Authors Adli Waliul Agung Setia Batubara Al julismi Alia Rizki Alifa Tazkiya Allaily Allaily Ayu Nirmala Sari Desy Nurrahma Dhani Dian Aswita Firdus Firdus Firdus Firdus Firdus Firman M Nur Furqan Maghfiriadi Ilham Zulfahmi Maulidar Maulidar Muhammad Dawami Muhammad Isa Muhammad Nasir Nadya Tirta Nakita Chairunnisa Perdana, Adli Waliul Rizki Fazilah SAUDAH SAUDAH Siti Diah Ayu Lestari Gea Siti Maulizar Sri Nurhayati Selian Suraiya Nazlia Syavira Azzahra Uswah Zilhaya Zultira Harina Roza