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Nutrient Absorption Rate of Oryzias celebensis Embryo Yulia Indah Sari Lalombo; Khusnul Yaqin; Sharifuddin bin Andy Omar
Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Vol 5, No 2 (2021)
Publisher : Sekolah Tinggi Ilmu Pertanian Wuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.akuatikisle.5.2.67-71

Abstract

Oryzias celebensis is a species of medaka fish in South Sulawesi. During incubation, the growth and development of these fish embryos depend on the nutrients stored in the eggs. Therefore, this study aimed to determine the volume size of egg yolks and oil droplets and the absorption rate of egg yolks of O. celebensis embryos that reared in different incubation media. The study was conducted using a completely randomized design (CRD) with four rearing media treatments, namely A (Early Rearing Media), B (bottled water), C (Pattunuang river water) and D (well water) with five replications . The results showed that the volume of egg yolk and O. celebensis embryo oil in each medium showed a decrease in volume size along with the embryonic development stage. The absorption rate of yolk in O. celebensis embryos in media A had the biggest yolk absorption with an average 0.015±0.038 mm3 while media D had the smallest yolk absorption with an average 0.011±0.022 mm3.
Length-weight Relationship and Condition Factors of Endemic Fish, Lagusia micracanthus Bleeker, 1860 (Pisces: Terapontidae) in Gilireng River, Wajo Regency, Indonesia Neneng Rahayu Ningsih; Sharifuddin Bin Andy Omar; Abdul Haris; Muhammad Nur; Rakhma Fitria Larasati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v15i2.40950

Abstract

Highlight Research Research on pirik endemic fish (Lagusia micracanthus) was first conducted in the Gilireng River. Based on the length-weight relationship, the growth type of pirik fish in the Gilireng River is isometric. The average size distribution, total length, and body weight of female fish were greater than those of male fish though not statistically significant. The Gilireng River water conditions are sufficient to support the growth of endemic pirik fish. Abstract Lagusia micracanthus or locally known as pirik fish and is the only endemic freshwater fish from the family Terapontidae. To date, published information related to biological aspects of this species in the Gilireng River, Arajang Village, Wajo Regency, is unavailable. This study aims to determine the length−weight relationship and condition factors of L. micracanthus fish populations in the Gilireng River. Fish sampling was performed once a month January 2022 to June 2022.The fish collected from Gilireng River comprised 69 male and 66 females during the study period. Pirik (L. micracanthus) in the Gilireng River demonstrated nearly an isometric growth pattern. Condition factor values ranged from 0.6455 to 4.3239, and the average condition factor values for female fish were smaller than male fish. The result of this study has contributed to the knowledge of the endemic pirik fish population in the Gilireng River that could assist fishery management scientists in conducting studies on the management of these fish.
NISBAH KELAMIN DAN UKURAN PERTAMA KALI MATANG GONAD IKAN LAYANG DELES (Decapterusmacrosoma BLEEKER, 1841) DI PERAIRAN TELUK BONE, SULAWESI SELATAN Dahlan, Muh. Arifin; Andy Omar, Sharifuddin Bin; Tresnati, Joeharnani; Umar, Moh Tauhid; Nur, Muhammad
Torani Journal of Fisheries and Marine Science Vol. 25 No. 1 (2015)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.149 KB) | DOI: 10.35911/torani.v25i1.260

Abstract

This research was conducted to investigate the sex ratio and the first gonadal maturity size of mackerel fish(Decapterus macrosomas Bleeker 1841). Samples were taken from June to October 2013 in the sub-district ofPanyula, District of East Riattang, in Bone region. Sample analysis was conducted at the Fisheries biologylaboratory, Department of Fisheries, Hasanuddin University, Makassar. Sex ratio was analyzed by using chiquadrat-testwhereas the first gonadal maturity size was obtained from the first size of the third-gonadal-maturitystage. There were 782 fish collected with male to female ratio 1,02:1,00. Statistically, the sex ratio from Bone waterswas 1:1, in other words, it is still in a balance condition. The male fish reached gonadal maturity stage at the size of195 mm, whereas the female at 210 mm. Keywords: sex ratio, gonadal maturity size, Mackarel fish, Bone strait.
Study of Maximum Sustainable Yield of Rabbitfish (Siganus sp.) in Makassar Waters Umar, Moh. Tauhid; Andy Omar, Sharifuddin Bin; Suwarni, Suwarni
Torani Journal of Fisheries and Marine Science VOLUME 3 NOMOR 2, JUNI 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/torani.v3i2.11375

Abstract

This study aims to estimate the potential of fish resources which include catch per unit effort (CPUE), Maximum Sustainable Yield (MSY), optimum efforts, exploitation rates and total allowable catch (TAC) of Rabbitfish in Makassar waters. This study uses time-series data, namely annual data from the fisheries statistics report at the Office of Marine and Fisheries Service, South Sulawesi Province from 2007 until. 2016. The method used to predict fish resource potential in the study is the Surplus Production method referring to the Schaefer model. The results of the study showed that the average production and standard efforts in the 10-year period were 78.8 tons per year and 1304 standard units per year respectively. The estimation results obtained by MSY and the optimum efforts of rabbitfish per year were 104 tons and 1142 standard units, respectively and total allowable catches (TAC) are 82.979 tons per year. The level of utilization of rabbitfish resources in Makassar waters in the last three years has been overexploitation.