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All Journal Journal of Aquatropica Asia Acta Aquatica: Aquatic Sciences Journal Jurnal Riset Akuakultur Jurnal Ilmiah Samudra Akuatika Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Arwana: Jurnal Ilmiah Program Studi Perairan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Buletin Pengabdian Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Solusi Masyarakat Dikara ABDIMU: Jurnal Pengabdian Muhammadiyah
Rachmawati Rusydi, Rachmawati
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Social Sciences Other

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Growth and biomass of Wolffia arrhiza with different sources of organic fertilizer Bahagia, Bahagia; Erlangga, Erlangga; Rusydi, Rachmawati; Ayuzar, Eva; Khalil, Munawwar; Hartami, Prama
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 2 (August, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i2.12199

Abstract

Wolffia arrhiza has a growth rate and biomass as well as a good nutritional content for the growth of cultivated fish, especially herbivorous fish. Due to the high protein content (up to 45% of the dry weight), Wolffia is an excellent plant for the production of various biologically active substances, especially proteins. These plants can double every 1-6 days, similar to algae or mushrooms, and the number of leaves doubles every 2-3 days. This study aims to determine the effect of different fertilizer sources on doubling time, relative growth rate, population density and biomass of Wolffia arrhiza and water quality. The method used in this research is experimental. The research design used a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The treatments were as follows: treatment A: chicken manure, B: cow manure, C: buffalo manure and D: goat manure with each dose of 200 grams. Parameters observed included doubling time, relative growth rate, population density, biomass and water quality parameters. The results showed that treatment B (cow manure) gave the highest value for doubling time, 1.59 days, relative growth rate 0.392 g/day, population density 209.75 ind/cm2, biomass 94.97. Keyword: Biomass; Fertilizer; Growth; Wolffia
Application of liquid organic fertilizer from wild banana stem waste (Musa acuminate) and coconut husk as a culture medium for Spirulina platensis Rubiyah, Rubiyah; Muliani, Muliani; Mahdaliana, Mahdaliana; Rusydi, Rachmawati; Mainisa, Mainisa
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 10: No. 3 (December, 2023)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v10i3.12200

Abstract

Microalgae are single-celled microorganisms with pigments and can produce photosynthesis to produce food and oxygen. The addition of liquid organic fertilizer from wild banana stem waste (Musa acuminata) and coconut husk as a source of nutrients can be used to increase the cell density of Spirulina platensis. This research was conducted on September 18-27 at the Hatchery and Aquaculture Technology Laboratory, Aquaculture Study Program, Department of Fisheries and Marine, Faculty of Agriculture, Malikussaleh University. The method used in this study is an experimental method with a non-factorial Complete Randomized Design (RAL) of 5 treatments and 3 repeats. The study is treatment A Control (Walne fertilizer), treatment B (Mixture of POC Waste of forest banana stems and coconut husk 12 ml / L of sea water), treatment C (Mixture of POC Waste of forest banana stems and coconut husk 14 ml / L of seawater), treatment D (Mixture of POC Waste of forest banana stems and coconut husk 16 ml / L of seawater), treatment E (Mixture of POC Forest banana stem waste and coconut husk 18 ml/L seawater). The results of this study showed that the use of POC from forest banana stem waste and coconut husk as a culture medium for Spirulina platensis had a real effect with F calculate 43,850 > F tabel (0.05) 3.48 to the peak population and had a real effect on the growth rate of Spirulina platensis with F calculate (26,884) > F table (0.05) 3.48.Keywords: Coconut husk; POC; Spirulina platensis; Wild banana stem waste.
ANALISIS DAYA TAMPUNG BEBAN PENCEMARAN FOSFOR DAN DAMPAK KERAMBA JARING APUNG DI DANAU LAUT TAWAR, ACEH TENGAH Adhar, Saiful; Erlangga, Erlangga; Rusydi, Rachmawati; Mainisa, Mainisa; Prasetya, Yukis Angga; Zaitun, Urmila
Jurnal Riset Akuakultur Vol 18, No 2 (2023): (Juni, 2023)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.18.2.2023.117-127

Abstract

Danau Laut Tawar di Kabupaten Aceh Tengah, Indonesia, memiliki luas permukaan 5.862 ha, garis pantai 49,75 km, kedalaman maksimum 84,23 m, kedalaman rata-rata 25,19 m, dan daerah tangkapan air seluas 18.877 ha. Danau ini merupakan danau tektonik dan bersifat multiguna seperti berperan sebagai sumber plasma nutfah, air baku air minum dan pertanian, perikanan, dan sumber pembangkit listrik tenaga air. Aktivitas antropogenik akibat pemanfaatan sumber daya di daerah tangkapan air dan perairan meningkatkan pemuatan fosfor ke perairan tersebut. Penelitian ini bertujuan untuk menghitung kapasitas beban fosfor dan dampak kegiatan keramba jaring apung terhadap pencemaran fosfor di Danau Laut Tawar. Data primer dan sekunder dikumpulkan dan dianalisis menggunakan berbagai pendekatan seperti studi literatur, pemodelan, pengukuran in-situ serta ex-situ, dan wawancara. Hasil penelitian menunjukkan konsentrasi fosfor di perairan Danau Laut Tawar sebesar 34,00 mg m-3. Beban fosfor dari daerah tangkapan air sebesar 5,19 mg m-3, dengan alokasi beban fosfor sebesar 0,74 mg m-3. Baku mutu fosfor ditetapkan sebesar 40,00 mg m-3, sehingga daya tampung beban pencemaran fosfor mencapai 1,04 ton tahun-1. Keramba jaring apung pada danau memiliki luas 4,46 ha dan menghasilkan limbah fosfor sebanyak 5,25 ton tahun-1 yang terlarut ke perairan danau. Nilai tersebut lebih tinggi dari daya tampung beban pencemaran fosfor pada danau dan memengaruhi kondisi alaminya serta aktivitas yang dilakukan di sekitar danau. Lake Laut Tawar in Central Aceh, Indonesia, covers an area of 5,862 ha with a coastline length of 49.75 km, a maximum depth of 84.23 m, an average depth of 25.19 m, and a catchment area of 18,877 ha. The lake is a tectonic-formed water body and serves various biological and economic functions such as biodiversity resources, water sources for drinking water and agriculture, fisheries, and hydroelectricity. Anthropogenic pressures from economic activities around and within the lake have increased phosphor loading in the water body. This study aimed to determine the phosphor loading capacity and the contribution of floating net cage operation on phosphor pollution in Lake Laut Tawar. Primary and secondary data were collected and analyzed using various approaches such as documents, modeling, in-situ and ex-situ measurements, and interviews. The results showed that the phosphor concentration in the Lake Laut Tawar waters reached 34.00 mg m-3. The phosphor load from the catchment area was 5.19 mg m-3, with the phosphor load allocation of 0.74 mg m-3. The maximum threshold for phosphor concentration in a lake is set at 40.00 mg m-3, bringing the phosphor pollution load capacity of the lake to 1.04 tons year-1. However, the floating net cages in the lake covered an area of 4.46 ha and produced 5.25 tons year-1 of phosphorus waste which dissolved into the lake waters. This value exceeds the phosphorus load capacity of the lake and subsequently affects the lake's natural state and the ecosystem services it provides.
Pemberdayaan masyarakat pembudidaya ikan lele di Gampong Hagu Teungoh dengan teknik pemijahan secara induksi untuk menghasilkan stok benih unggul [Empowering the catfish breaking community in Hagu Teungoh Village using inductional spawning techniques to produce superior seed stock] Mahdaliana, Mahdaliana; Salamah, Salamah; Hartami, Prama; Rusydi, Rachmawati; Muktitama, Asih Makarti; Kamil, Ade Ikhsan
Buletin Pengabdian Vol 4, No 1 (2024): Bull. Community. Serv.
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/bulpengmas.v4i1.35560

Abstract

Hagu Teungoh Village is one of the villages located on the coast of Lhokseumawe City which has good potential in the field of fisheries. One of the business units that can support the economy of the people in this region is catfish farming. Therefore, it is necessary to empower catfish farmers so that the community knows modern spawning techniques which can later increase production which has an impact on community income. The purpose of this community empowerment program is to apply innovations to the community, especially catfish farmers in induction spawning activities, natural and artificial hatcheries, and enlargement. This community empowerment service activity is carried out by providing counseling and training related to induced catfish spawning techniques to produce superior seed stock. The approach method used is directly by providing information and practicing new innovative techniques directly. The results of the activity showed that the participants' knowledge level increased after attending counseling and training on hormonal catfish spawning techniques. 98.88% of participants knew the process of stripping catfish broodstock and caring for catfish fry, and 100% of participants knew the types of hormones and doses used for spawning. This counseling activity has a positive impact in overcoming the problems faced by catfish farmers. In conclusion, based on the survey results, the percentage of catfish farmers in Hagu Teungoh Village who know the techniques of hormonal fish spawning has increased dramatically.
Co-Authors Ade Ikhsan Kamil Alfaini, Momika Andika, Yudho Antoni Antoni Asih Makarti Muktitama Bahagia Bahagia Erlangga Erlangga Erniati Erniati Eva Ayuzar, Eva Febri, Suri Purnama Febrian , Muhammad Rizki Fuadi, Wahyu Hanisah, Hanisah Haser, Teuku Fadlon Herlina Putri Endah Sari Ika Rezvani Aprita Imanullah, Imanullah Khairawati, K M. Hatta Mahdaliana, Mahdaliana Mainisa, Mainisa Masyithah, Putri Mauliyani, Mauliyani Muhammad Hatta Muliani Muliani, Muliani Munawwar Khalil, Munawwar Murniati . Natasya, Siti Nazlia, Suraiya Patmawati Patmawati, Patmawati Prama Hartami Prasetya, Yukis Angga Putri, Ricke Diana Putriningtias, Andika Rahmaniar, R Ranim, Yenfi Riza Riani Riani, Riani Riri Ezraneti Rizky Kurniawan Rubiyah, Rubiyah Saiful Adhar salamah salamah Sapto Andriyono Sari, Nurdian Novita Siti Komariyah Suhaila, Nurul Wahyuni, Riri Yusrizal Akmal Zaitun, Urmila