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All Journal JURNAL ILMIAH PLATAX JURNAL GALUNG TROPIKA Jurnal Pengabdian kepada Masyarakat Nusantara Nusantara Hasana Journal Jurnal Cakrawala Ilmiah JURNAL BAHARI PAPADAK Jurnal Perikanan Kamasan: Smart, Fast, & Professional Services
Frits Aripatra Maitindom
Universtas Satya Wiyata Mandala
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing Physics Public Health Social Sciences Other

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MORPHOMETRIC ANALYSIS OF INDIAN MACKEREL (Rastrelliger kanagurta) LANDED IN KUPANG IN OCTOBER AND NOVEMBER: LENGTH RATIO AND LINEAR RELATIONSHIP OF TL-FL-SL Larwuy, Winster; Hidayati, Desy A.; Palinggi, Rifka L.; Armos, Nikanor H.; Boikh, Lebrina Ivantry; Ayubi, Aludin Al; Maitindom, Frits A.
Jurnal Bahari Papadak Vol 6 No 2 (2025): Jurnal Bahari Papadak
Publisher : Universitas Nusa Cendana

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Abstract - This study was conducted to analyze the morphometric characteristics of Indian mackerel (Rastrelliger kanagurta) landed in Kupang during October – November 2025. Morphometric analysis was performed as body-length parameters constitute fundamental biological indicators for assessing growth patterns, detecting variations in body form, and generating essential size-conversion metrics that support population biology and stock-management assessments. A total of 303 individuals were measured for Total Length (TL), Fork Length (FL), and Standard Length (SL) to analyze size distribution, analyze length ratios (FL/TL, SL/TL, SL/FL), and analyze linear relationships between parameters using linear regression and two-way ANOVA to test the effects of size class and ratio type. The size distribution indicated that TL ranged from 21.0 to 32.1 cm (mean = 25.708 ± 3.601 cm), with FL ranging from 19.0 to 29.1 cm and SL ranging from 17.7 to 26.5 cm. Length ratios were relatively stable in small to medium size but decreased in larger individuals, suggesting disproportionate length growth. The ANOVA results revealed significant effects of size class and ratio type on body-length ratios (p < 0.05). Linear relationships between the length parameters exhibited a negative allometric growth pattern (b < 1), accompanied by extremely high correlation coefficients (r = 0.998 for TL-FL, TL-SL, and FL-SL), indicating that FL and SL increased proportionally more slowly than TL. Keywords: indian mackerel, morphometry, length ratio, negative allometry, Kupang
ANALISA PENGARUH KELENJAR HYPOFISA KODOK PURU ( Bufo Melanustickus ) TERHADAP KELANGSUNGAN HIDUP LARVA DUMBO ( Clarias gariepinus ) Irianty Tampubolon; Frits A. Maitindom; Yonavin M. Titaley; Margret I. Solissa; Satria Mandiangan; Marry H. Lidan
Nusantara Hasana Journal Vol. 5 No. 8 (2026): Nusantara Hasana Journal, January 2026
Publisher : Yayasan Nusantara Hasana Berdikari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59003/nhj.v5i8.1900

Abstract

This study aims to determine the survival rate of African catfish larvae due to the administration of pituitary gland doses of puru toad with different doses. The container used was a jar measuring 30 × 20 × 20 cm as many as 9 jars according to the number of experimental units. The water height is ± 15 cm, with a water volume of 4.1. The broodstock of catfish used were 9 females weighing 1 kg each. Puru toad used as many as 133 tails. The experimental design used was a Completely Randomized Design (CRD) with 3 treatments and 3 replications, with different levels of pituitary gland doses of each treatment A = 600 mg / kg African catfish, treatment B 700 mg / kg African and treatment C = 800 mg / kg African catfish. Calculation of egg hatchability was carried out after 18-24 hours. While the calculation of larval survival after 3 days of larval maintenance. The analysis of variance showed that the pituitary gland treatment did not significantly affect the survival of African catfish larvae. The highest survival rate was found in the 600 mg/kg African catfish treatment, at 8.21%. This was followed by the 800 mg/kg African catfish treatment, at 5.46%, and the 700 mg/kg African catfish treatment, at 4.61%. Temperature and pH remained normal throughout the study.
Co-Authors Armos, Nikanor H. Ayubi, Aludin Al Bara, Robert. A. Boneka, Farnis B. Boneka Dharsono, Wardhana W. Gustaf Mamangkey Hendri S. Lakatompessy Hidayati, Desy A. Irianty Tampubolon Irinaty Tampubolon Larwuy, Winster Lebrina Ivantry Boikh Mandiangan, Satria Marei, Sefnat Marey, Sefnat Margret I. Solissa Markus T. Lasut Marry H. Lidan Maruanaya, Yan Marunaya, Yan Mistina, Rahayu Mistina, Rahayu Septyaning Palinggi, Rifka L. Rose O. S. E. Mantiri, Rose O. S. E. Satria Mandiangan Solissa, Margret I. Solissa, Margret Inggrit Tampubolon, Irianty Titaley, Yonavin Yonavin M. Titaley