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Journal : JURNAL GALUNG TROPIKA

Fortifikasi Tepung Daun Pepaya pada Pakan untuk Stimulasi Pertumbuhan Ikan Nila (Oreochromis niloticus) Yusdalifa Ekayanti Yunus; Ummu Kaltsum SC; Fauzia Nur; Sahabuddin; Fitri Indah Yani; Nurul Mutmainnah; Rismawaty Rusdi
Jurnal Galung Tropika Vol 13 No 1 (2024)
Publisher : Fakultas Pertanian, Peternakan dan Perikanan Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v13i1.1146

Abstract

One of the fundamental problems in tilapia aquaculture is the decline in water quality in the hatchery. The seed stage is more vulnerable to environmental changes that can reduce the gowth process of seeds and will further cause death. This study aims to determine the effect of fortification of papaya leaf flour (Carica papaya L.) to stimulate tilapia gowth. This study used an experimental method to treat different doses of papaya leaf flour mixed into the feed, namely 0%, 2%, 4%, and 6%, with the test animals used as tilapia seeds measuring 1.4 gams with a length of 3.2 cm. The proximate test results showed that the moisture, ash, crude fat, crude protein, crude fiber, and BETN content were suitable for tilapia fish needs. After 30 days of rearing with the test feed, there was an effect on the specific gowth rate parameters on day 15 and day 30 and the average absolute gowth. The best specific gowth rate (SG) at a dose of 2% was obtained at 6.606% on day 15 and 4.400% on day 30. The best average absolute gowth was obtained at 2% dose feeding with tilapia weight of 6.606 gams and length of 4.400 cm.
Pemetaan Zona Potensi Penangkapan Ikan Tongkol (Euthynnus Affinis) di Perairan Selat Makassar Sulawesi Barat Fitri, Fitri Indah Yani; Susaniati, Warda; Sahabuddin; Mutmainnah, Nurul; Yunus, Yusdalifa Ekayanti; Kaltsum SC, Ummu; Rusdi, Rismawaty; Muh. Kasim
Jurnal Galung Tropika Vol 14 No 1 (2025)
Publisher : Fakultas Pertanian, Peternakan dan Perikanan Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v14i1.1324

Abstract

One of the areas directly adjacent to the Makassar Strait is the city of Mamuju, which is a potential area for tuna (Euthynnus affinis) fishing. This study aimed to analyze the spatial and temporal mapping of tuna ZPPI based on remote sensing GIS technology for fisheries in the Makassar Strait waters, West Sulawesi. The research method used in-situ data: fishing position, catch results, and oceanographic dynamics. Ex-situ data used monthly image data of sea surface temperature (SST), chlorophyll-a (aqua modis). The data was processed using multiple regression analysis between catch results and several oceanographic parameters. The results were then visualized as a map with a Geographic Information System (GIS) using ArcView 10.2 software to obtain potential tuna fishing areas in the Makassar Strait. The results showed a strong correlation between SST and chlorophyll-a with catch results, which was 83.5%. In addition, temporal time data for fishing was obtained in March, April, May, and June. The coordinates of the fishing area points for March are 118o50'12” and 2O 45'5”; in April, they are at 118O 23'15” and 2O30'4”; in May, they are at 118o 23'0” and 2 o30’4”; and in June they are at 118 o23’0” and 2 o28’0”. The Fishing Potential Zone (ZPPI) for tuna is at 118 o27’ and 2 o29’ 32” to 118 o16’ 48” and 2 o16’ 48”.