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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Sumberdaya Akuatik Indopasifik Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Mulyani, Yenni Sri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Library & Information Science

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The abundance and types of plankton in milkfish ponds at Banyuasin South Sumatera Fitrani, Mirna; Septiyani, Reni; Jubaedah, Dade; Wijayanti, Marini; Septimesy, Annisa; Mulyani, Yenni Sri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.30065

Abstract

Tidal lowland is an area with significant potential for fisheries development, especially in aquaculture. Abundant water supply and land availability provide great opportunities for cultivating aquaculture commodities such as fish, shrimp, and crab. However, effective water quality management poses a significant challenge, necessitating a comprehensive evaluation based on biological, physical, and chemical assessment. Among the crucial parameters influencing water fertility, the presence of plankton stands out. Therefore, this study aimed to investigate water fertility by identifying plankton species, abundance, diversity, dominancy, and water quality in milkfish ponds at Banyuasin, South Sumatra. The results showed that the abundance of phytoplankton and zooplankton ranged from 1030-1791 individual L-1 and 103-461 individual L-1, respectively. Furthermore, Bacillariaceae was recorded to be the highest specie, followed by Cyanophyta, Chlorophyta, Protozoa, Rotifer, and Arthropoda. The range diversity index varied between 1 to 2.6, while the density and dominance indices ranged from 0.9 and 1, as well as 0.1 and 0.8, respectively. The classification of the pond's fertility fell within the mesotrophic category, signifying a moderate level. In conclusion, the water quality maintained an optimum range, thereby supporting the growth of plankton and milkfish. Meanwhile, only ammonia was below the optimum range stipulated by PP No. 22 of 2021 suggested.Keywords:bioindicatormilkfishplanktontidal lowlandwater quality
The abundance and types of plankton in milkfish ponds at Banyuasin South Sumatera Fitrani, Mirna; Septiyani, Reni; Jubaedah, Dade; Wijayanti, Marini; Septimesy, Annisa; Mulyani, Yenni Sri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.30065

Abstract

Tidal lowland is an area with significant potential for fisheries development, especially in aquaculture. Abundant water supply and land availability provide great opportunities for cultivating aquaculture commodities such as fish, shrimp, and crab. However, effective water quality management poses a significant challenge, necessitating a comprehensive evaluation based on biological, physical, and chemical assessment. Among the crucial parameters influencing water fertility, the presence of plankton stands out. Therefore, this study aimed to investigate water fertility by identifying plankton species, abundance, diversity, dominancy, and water quality in milkfish ponds at Banyuasin, South Sumatra. The results showed that the abundance of phytoplankton and zooplankton ranged from 1030-1791 individual L-1 and 103-461 individual L-1, respectively. Furthermore, Bacillariaceae was recorded to be the highest specie, followed by Cyanophyta, Chlorophyta, Protozoa, Rotifer, and Arthropoda. The range diversity index varied between 1 to 2.6, while the density and dominance indices ranged from 0.9 and 1, as well as 0.1 and 0.8, respectively. The classification of the pond's fertility fell within the mesotrophic category, signifying a moderate level. In conclusion, the water quality maintained an optimum range, thereby supporting the growth of plankton and milkfish. Meanwhile, only ammonia was below the optimum range stipulated by PP No. 22 of 2021 suggested.Keywords:bioindicatormilkfishplanktontidal lowlandwater quality
Peningkatan Efisiensi Pakan dan Performa Pertumbuhan Ikan Betok (Anabas testudineus) yang Dipelihara pada Periode Pemuasaan yang Berbeda Fitrani, Mirna; Amin, Mohamad; Rismoni, Indah; Wijayati, Marini; Septimesy, Annisa; Mulyani, Yenni Sri; Mukti, Retno Cahya
Jurnal Sumberdaya Akuatik Indopasifik Vol 9 No 3 (2025): Agustus
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2025.Vol.9.No.3.478

Abstract

Fish feed is known to account for 60-70% of total aquaculture costs, posing a significant challenge to farmers. To address the issue, this study explored the effectiveness of periodic starvation in improving feed efficiency and growth performance of climbing perch while reducing the cost of purchasing feed. The method used was a completely randomized design (CRD) analyzed using ANOVA. Four treatments were applied with three replicates each. The treatments consisted of P0 (no fasting), P1 (one day of fasting followed by one day of feeding), P2 (one day of fasting and two days of feeding), and P3 (one day of fasting and three days of feeding). The parameters observed included feed efficiency, growth in length and absolute weight, and fish survival rates. The results showed that periodic starvation significantly impacted the absolute body weight growth and feed efficiency (P<0.05). However, no effect was observed on the survival rates and absolute length growth. Among the treatments, P1 showed the best results, with feed efficiency of 21.87%, length growth of 0.23 cm, weight growth of 0.22 g, and survival rate of 100%. In conclusion, this study found that periodic starvation combined with feeding could significantly improve fish feed use efficiency and save fish farmers' costs.
HUBUNGAN KELIMPAHAN FITOPLANKTON, KONSENTRASI KLOROFIL-a DAN KUALITAS PERAIRAN PESISIR SUNGSANG, SUMATERA SELATAN Ridho, Moh. Rasyid; Patriono, Enggar; Mulyani, Yenni Sri
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 1 (2020): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.381 KB) | DOI: 10.29244/jitkt.v12i1.25745

Abstract

Diversity and abundance of fish are rely on fitoplankton abundance as food, meanwhile abundance of phytoplankton is depend on waters quality. In order to understand relationship among those component, this study was carried out to analyzed correlation among phytoplankton abundance chlorophyll-a concentration and water quality. This study was conducted in the coastal waters of sungsang, Banyuasin Regency from July until August 2017. Sample collected using purposive sampling method. Results of the research showed that clarity around 6.3-45.5%, turbidity 2-4 NTU, temperature 29.6-30.8oC, pH 6.0-7.7, salinity 0-16 ppt, DO 5.33-6.50 mg/L, BOD 0.4-3.6 mg/L, ammonia 0.1-0.32 mg/L, phosphate 0.01-2.16 mg/L, nitrate 0.06-2.96 mg/L, chlorophyll-a 1,68-20,6 mg/m3. There was positive correlation among chlorophyll-a and phytoplankton, phosphate, nitrate, DO, BOD5 about 95.5%, 91%, 76.6%, 82.2%, -63%, respectively. The higher the concentration of phosphate and nitrate the higher the concentration of chlorophyll-a, and the higher the concentration of chlorophyll-a causes the higher the concentration of dissolved oxygen. The higher the BOD5 and ammonia, the lower the concentration of chlorophyll-a.
Co-Authors Dade Jubaedah Enggar Patriono, Enggar Marini Wijayanti Mirna Fitrani Moh. Rasyid Ridho Mohamad Amin Retno Cahya Mukti Rismoni, Indah Septimesy, Annisa Septiyani, Reni Wijayati, Marini