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All Journal JPM17: Jurnal Pengabdian Masyarakat Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Jurnal Perikanan
Achmad Kusyairi
Universitas Dr. Soetomo Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Social Sciences

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Journal : Jurnal Perikanan

 1 
DISTRIBUTION OF CHLOROPHYL-A AND SEA SURFACE TEMPERATURE AND ITS INFLUENCE ON THE CATCH OF YELLOWFIN TUNA (Thunnus albacares) ON SERAYA BESAR ISLAND, EAST NUSA TENGGARA Rafis Trisandi Dimu; Gilang Rusrita Aida; Achmad Kusyairi
Jurnal Perikanan Unram Vol 14 No 2 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i2.808

Abstract

Determining fishing Ground (FG), fishermen on Seraya Besar Island still use traditional methods or only experience, so there is a need for a touch of technology and knowledge to predict fishing ground through the distribution of chlorophyll-a and the distribution of sea surface temperature (SST) so that fishing activities are more effective. and effective and efficient. Starting from this idea, the author wants to study the distribution of chlorophyll-A and sea surface temperature and their influence on the catch of yellowfin tuna (Thunnus Albacares) on Seraya Besar Island, East Nusa Tenggara. This research uses a descriptive method. Based on this research, the average distribution of chlorophyll-a from January to November 2023 in the fishing ground fishermen on Seraya Besar Island was 0.44 mg/m3. The average distribution of sea surface temperatures from January to November 2023 in the fishing ground for fishermen on Seraya Besar Island is 27.55 °C. Linear regression with the equation Y = 2618.120 + 1715.958 X1 - 99.329 X2 with an adjusted R2 value of 79%. The T test results show that the chlorophyll-a distribution variable has a significant partial effect. Meanwhile, the variable distribution of sea surface temperature has no significant partial effect on Yellowfin Tuna catches on Seraya Besar Island, East Nusa Tenggara. The results of the F test show that the variables of chlorophyll-a distribution and sea surface temperature have a significant simultaneous effect on the catch of Yellowfin Tuna on Seraya Besar Island, East Nusa Tenggara.
PENGARUH FREKUENSI PEMBERIAN PAKAN KOMERSIAL TERHADAP PERTUMBUHAN BERAT MUTLAK UDANG VANAME (Litopenaeus vannamei) UMUR PL 8-21 DI CV. ZELDA SUMENEP KABUPATEN SUMENEP Fabian Rahmando Ahmed; Muhajir Muhajir; Achmad Kusyairi
Jurnal Perikanan Unram Vol 14 No 2 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i2.809

Abstract

One important factor in feeding management is the frequency of feeding, namely the number of times feed is given in one day. If this feeding frequency is used incorrectly, it can certainly affect the growth and survival of the shrimp. This study aims to determine the optimal commercial feeding frequency for the absolute weight growth vannamei shrimp (Litopennaeus vannamei) PL ages 8-21 at CV. Zelda Sumenep, Sumenep District. This study used an experimental method with a completely randomized design (CRD) with 4 treatments with 6 replications. The treatment in this study was the frequency of commercial feeding, treatment A; frequency of commercial feeding 2 times/day, treatment B ; frequency of commercial feeding 3 times/day, treatment C ; frequency of commercial feeding 4 times/day, and treatment D ; frequency of commercial feeding 5 times/day. The test animals used in this study were vannamei shrimp PL ages 8-21 with an average weight of 0,001 g/head. The stocking density was 1 head/liter and the experimental medium used fresh water with a volume of 15 liters/tub. The results showed that treatment D gave the highest results for the absolute weight growth of vannamei shrimp (Litopenaeus vannamei) PL 8-21 of 0,053 g. Water quality data obtained water temperatures ranged from 27,3 oC – 27,5 oC, acidity ranged from 7,7 – 7,72 and dissolved oxygen ranged from 6,17 – 6,21 ppm.
Co-Authors Didik Budiyanto Didik Trisbiantoro Fabian Rahmando Ahmed Gilang Rusrita Aida Muhajir, M Rafis Trisandi Dimu Shelly Aprilia Faradela Sri Oetami Madyowati Yusruddin Yusruddin