Aswad Eka Putera
Program Studi Ilmu Kelautan, Fakultas Peternakan Dan Perikanan, Universitas Tadulako, Jl. Soekarno Hatta Km 9, Kota Palu, Indonesia, 94118

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Journal : AGRISAINS

KOMPOSISI DAN KEANEKARAGAMAN JENIS IKAN KARANG DI PERAIRAN TELUK PALU Putra, Aswad Eka; Akbar, Mohammad
AgriSains Vol 18, No 2 (2017)
Publisher : FAPETKAN UNTAD

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Abstract

Reef fish resources in Palu Bay are under exploitation pressure with increasing demand of fish for human consumption. This study is aimed to analyze the reef fishes composition dan biodiversity in Palu Bay. Field survey was conducted in Palu Bay, Central Sulawesi, in June-July 2017. This research used a survey method on data collection of reef fishes in the form of visual census methods (UVS) and methods of UPT (Underwater Photo Transect). Three sampling station were chosen to represent reef fishes condition in Palu Bay. Results of research in Palu Bay, the reef fish composition dominated by major fishes (54%), then target fishes (40%) and indicator fishes (6%). The reef fish biodiversity index has an average of 2.44 with a range from 2.19 to 2.66, means that biodiversity is in moderate category.Keyword: Biodiversity, Reef Fishes, Palu Bay
PERFORMA SET NET BERDASARKAN PROFIL ARUS DI PERAIRAN TELUK MALLASORO JENEPONTO Putra, Aswad Eka
AgriSains Vol 17, No 3 (2016)
Publisher : FAPETKAN UNTAD

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Abstract

Set net catch operated in Mallasoro Bay is very fluctuating. The fluctuations strongly assumed related to te current profile in that area. The objective of this study was to investigate the relationship between current profile with the set net catch. It was applied the linier regression for assessing its relationship. Data was collected for 35 days in set net fishing ground in Mallasoro Bay, Jeneponto. The results indicated that current direction and velocity play an important role in controlling set net productivity with significance value is 0,000028. By individually test shown that current velocity is the most influential that potentially reduces 7.29 units of set net catch.Keyword: set net, current, fish capture
Recruitment Pattern Of Blue Swimming Crab Portunus pelagicus in Salemo Island Waters, South Sulawesi Province. Nurdin, Muh. Saleh; Hasanah, Nur; Putra, Aswad Eka
AgriSains Vol 20, No 1 (2019)
Publisher : FAPETKAN UNTAD

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Abstract

This research aims to analyze yield per recruitment of the blue swimming crabs caughtin Salemo Island. This research was conducted from March to July 2015. Yield per recruitment ofthe blue swimming crab was analysed by using FISAT II. The research results indicated thatrecruitment pattern throughout the year with one peak, percentage of yield per recruitment 1.90-22.11 %.Keyword: blue swimming crab, yield per recruitment, Salemo Island.
Komposisi dan Keanekaragaman Jenis Ikan Karang di Perairan Teluk Palu Putra, Aswad Eka; Akbar, Mohammad
AgriSains Vol 18, No 2 (2017)
Publisher : FAPETKAN UNTAD

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Abstract

Sumber daya ikan karang di Teluk Palu mengalami tekanan eksploitasi seiring dengan peningkatan permintaan sumber daya ikan untuk memenuhi kebutuhan konsumsi ikan. Penelitian ini bertujuan untuk menganalisis komposisi jenis dan keanekaragaman ikan karang di Teluk Palu. Lokasi penelitian dilakukan di Teluk Palu, Provinsi Sulawesi Tengah, pada Juni-Juli 2017. Penelitian menggunakan metode survei pada pengambilan data ikan karang, berupa metode visual sensus (UVS) dan metode UPT (Underwater Photo Transect). Tiga Stasiun pengamatan dipilih untuk  mewakili kondisi ikan karang di Teluk Palu. Hasil penelitian di Teluk Palu, komposisi jenis ikan karang didominasi oleh ikan mayor (54%), lalu ikan target (40%) dan ikan indikator (6%). Indeks keanekaragaman ikan karang di Teluk Palu memiliki rata-rata sebesar 2.44 dengan kisaran 2.19-2.66 yang berarti keanekaragaman dalam kategori sedang.
Sex Ratio and Size at First Maturity of Snakehead Gudgeon (Giuris margaritacea) Caught with Gillnets at Bolano Sau Lake, Parigi Moutong District Putra, Aswad Eka; Nurdin, Muh. Saleh; Hasanah, Nur; Ndobe, Samliok; Mansyur, Kasim
AgriSains Vol 21, No 3 (2020)
Publisher : FAPETKAN UNTAD

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Abstract

The research aimed to sex ratio and size at first maturity of snakehead gudgeon at Bolano Sau Lake. The research was conducted at Bolano Sau Lake from August to December 2019. Snakehead gudgeon samples were obtained from the fishermen using a gillnet with a mesh size 2½-3½ inches. Sample analysis was carried out at the Water Quality Laboratory, State College of Fisheries and Marine, Palu. The difference in sex ratios of snakehead gudgeon used the Chi-square test, while the size at first maturity was estimated based on the Spearman - Karber method. Snakehead gudgeon caught on a gillnet in Bolano Sau Lake measuring 79-163 mm. The sex ratio between males and females is not balanced where males are more dominant in females. The size at first maturity was 119.19 mm. Suggestion minimum legal size > 120 mm. The use of gillnets in snakehead gudgeon fishing activities has an effect on the balance of male and females, but is very selective with size.
KOMPOSISI DAN KEANEKARAGAMAN JENIS IKAN KARANG DI PERAIRAN TELUK PALU Putra, Aswad Eka; Akbar, Mohammad
AgriSains Vol 19, No 2 (2018)
Publisher : FAPETKAN UNTAD

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Abstract

Sumber daya ikan karang di Teluk Palu mengalami tekanan eksploitasi seiring dengan peningkatan permintaan sumber daya ikan untuk memenuhi kebutuhan konsumsi ikan. Penelitian ini bertujuan untuk menganalisis komposisi jenis dan keanekaragaman ikan karang di Teluk Palu. Lokasi penelitian dilakukan di Teluk Palu, Provinsi Sulawesi Tengah, pada Juni-Juli 2017. Penelitian menggunakan metode survei pada pengambilan data ikan karang, berupa metode visual sensus (UVS) dan metode UPT (Underwater Photo Transect). Tiga Stasiun pengamatan dipilih untuk mewakili kondisi ikan karang di Teluk Palu. Hasil penelitian di Teluk Palu, komposisi jenis ikan karang didominasi oleh ikan mayor (54%), lalu ikan target (40%) dan ikan indikator (6%). Indeks keanekaragaman ikan karang di Teluk Palu memiliki rata-rata sebesar 2.44 dengan kisaran 2.19-2.66 yang berarti keanekaragaman dalam kategori sedang.
Masculinization of Tilapia (Oreochromis niloticus) Through Immerging Coconut Water with Different Concentrations Cahyani, Regita; Serdiati, Novalina; Tis'in, Musayyadah; Putra, Aswad Eka
AgriSains Vol 22, No 2 (2021)
Publisher : FAPETKAN UNTAD

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Abstract

The reproductive nature of female tilapia (Oreochromis niloticus) results in decreased growth of 10-20% per generation which is characterized by small body size, slow growth and rapid maturation of gonads. One effort that can be done is the application of the sex reversal method by increasing the number of male fish through masculinization by utilizing coconut water as a natural ingredient for synthetic hormone replacement because it has relatively complete nutrition, especially potassium (kalium) content which reaches 312 mg/100g. This study aims to determine the effect of using coconut water with different concentrations on the percentage of male tilapia produced. This study was designed in a completely randomized design (CRD) with 4 treatments and 5 replications, treatment A (without coconut water), B (coconut water concentration 25%), C (coconut water concentration 35%) and D (coconut water concentration 45%). Data on the percentage of male sex were analyzed for variance (ANOVA) at the 95% confidence level and further tested by Duncan to see the effect between treatments. The results showed that the treatment of immersion in coconut water with different concentrations had a significant effect (<0.05) on the percentage of male sex of tilapia. The best percentage of male tilapia was immersed in coconut water with a concentration of 35% (treatment C), which was 86.87%.