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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.
Anesthetic effectiveness of tekelan leaves on tinfoil barb fish in closed transportation Ayuzar, Eva; Rusydi, Rachmawati; Muna, Hayatun; Muliani, Muliani
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.18519

Abstract

The mortality of tinfoil barb during transportation is relatively high due to the oxygen consumption rate and excretion of these fishes. Therefore, the use of an appropriate anesthetic drug becomes one of the solutions for solving this transportation problem of tinfoil barb. One of the natural anesthetic drugs with potential to be studied is Chromolaena odorata leaves. The purpose of this study is to evaluate the effectiveness of anesthetic compounds from Chromolaena odorata leaves in the closed transportation of tinfoil barb. The experimental design used was a non-factorial completely randomized design that consisted of four treatments and three replications,then followed by a Tukey test to see if there was a significant difference. The experimental treatments were A (0 ml/L of leaves filtrate), B (80 ml/L of leaves filtrate), C (90 ml/L of leaves filtrate), and D (100 ml/L of leaves filtrate). The observed parameters were fish behavior towards unconscious condition, onset time, immotilization time, survival rate, and water quality. The results showed that the shortest onset time was obtained from treatment D (100 ml/L leaves filtrate), namely 58 minutes towards unconscious condition, then the longest immotilization time was also shown by treatment D, which was 371 minutes. The highest survival rates were also shown by treatment D which were 94,33% during transportation and 76,33% during culture. The water quality parameters during the experiment were in an optimum condition of tinfoil barb.Keywords:AnestheticChromolaenaodorataTransportationTinfoil barb