Rahmadani, Alfira and Dr. Ir. Sri Sudaryanti,, MS. (2022) Bioassessment Menggunakan Komunitas Makroinvertebrata untuk Pendugaan Kesehatan Sungai Jurang Susuh Kecamatan Bumiaji di Kota Batu Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Sungai Jurang Susuh di Desa Giripurno Kecamatan Bumiaji merupakan salah satu sungai yang alirannya melewati kawasan permukiman masyarakat, perkebunan, persawahan dan akvitas pembangunan. Aktivitas tersebut dapat menimbulkan dampak negatif terhadap kualitas sungai, seperti membuang limbah langsung ke badan perairan. Berbagai aktivitas yang dilakukan di sekitar aliran sungai memengaruhi kondisi kualitas air sungai dimana dapat menyebabkan perubahan faktor lingkungan sehingga akan berakibat buruk bagi kehidupan organisme air. Oleh karena itu, perlu dilakukan pengamatan kualitas air sungai Jurang Susuh di Desa Giripurno Kecamatan Bumiaji Kota Batu agar lingkungan perairan dapat dipertahankan kualitasnya secara berkelanjutan baik untuk aktivitas manusia maupun organisme perairan lainnya. Lokasi penelitian terdiri dari 6 titik pengambilan sampel yang terletak di Desa Giripurno Kecamatan Bumiaji Kota Batu Jawa Timur. Parameter lingkungan yang diukur meliputi nir air yaitu tipe substrat dan kecepatan arus, dan faktor fisika yaitu suhu dan faktor kimia meliputi derajat keasaman (pH), oksigen terlarut (DO), total bahan organik (TOM), amonia dan kesadahan. Metode pengambilan sampel makroinvertebrata dilakukan dengan menggunakan teknik kicking sepanjang 10 m menggunakan jaring dengan ukuran mata jaring 500 μm. Analisis data menggunakan indeks BMWP (Biological Monitoring Working Party) dan dilanjutkan dengan menghitung skor menggunakan rumus ASPT (Average Score per Taxon). Tujuan dari penelitian ini adalah untuk mengetahui komposisi dan kelimpahan makroinvertebrata serta kondisi kesehatan kualitas air sungai Jurang Susuh. Penelitian ini diharapkan dapat dijadikan informasi keilmuan perairan khususnya pada sungai dan makroinvertebrata pada perkuliahan biomonitoring. Selain itu juga dapat dijadikan sebagai sumber informasi untuk penelitian selanjutnya mengenai makroinvertebrata di Sungai Jurang Susuh. Hasil dari penelitian, makroinvertebrata yang ditemukan di aliran Sungai Jurang Susuh di Desa Giripurno Kecamatan Bumiaji Kota Batu berjumlah 23 taksa dan anggota dari 11 ordo (Ephemeroptera, Trichoptera, Coleoptera, Hemiptera, Plecoptera, Odonata, Gastropoda, Diptera, dan Decapoda) 5 kelas (Gastropoda, Insecta, Polychaeta, Crustacea, Oligochaeta) dan 1 Spesies (Chironomus thummi). Jumlah taksa terendah terdapat pada stasiun 2 di Desa Giripurno dengan jumlah 8 taksa. Jumlah taksa tertinggi terdapat di stasiun 1 di Desa Giripurno dengan jumlah 11 taksa. Makroinvertebrata yang sering ditemukan yaitu dari kelas Gastropoda (Thiaridae dan Planorbidae), spesies Chironomus tummi dan Choronomidae. Hasil parameter lingkungan aliran Sungai Jurang Susuh yaitu substrat bervariasi dari batu kecil hingga lumpur dan pasir, kecepatan arus berkisar antara 0,2–0,32 m/detik. Hasil kecepatan arus menunjukkan bahwa kecepatan arus Sungai Jurang Susuh tergolong arus lambat. Pengukuran parameter kualitas air pada suhu berkisar 20–24 ℃, derajat keasaman berkisar 7,5–7,84, kadar TOM berkisar 6,32–18, 96 mg/L, kadar DO berkisar antara 5,4–11,5 mg/L, kadar amonia berkisar 0,124–0,249 mg/L dan kesadahan berkisar antara 148–188 mg/L. Hasil analisis menggunakan indeks BMWP-ASPT diperoleh hasil stasiun 1 dengan nilai 4,8 dan stasiun 2–6 dengan nilai masing-masing 3,5; 2,8; 3,5; 3,3. Hasil tersebut menunjukkan bahwa kondisi perairan Sungai Jurang Susuh telah masuk dalam kategori buruk. Berdasarkan dari hasil penelitian, saran yang dapat diberikan yaitu Pemerintah Kota Batu diharapkan dapat merencanakan perbaikan Sungai Jurang Susuh dengan mendirikan suatu lembaga khusus yang dapat menangani pencemaran sungai dengan membangun fasilitas pengelolaan sampah agar tidak langsung di buang ke badan perairan sungai dan dapat didaur ulang. Pemerintah juga disarankan agar membuat kebijakan kepada masyarakat khususnya yang melakukan kegiatan peternakan agar tidak langsung membuang limbah kotoran hewan di aliran sungai. Selain itu pemerintah dapat menghimbau dan mengajak masyarakat Desa Giripurno untuk melakukan rehabilitasi yaitu dengan melakukan kegiatan penanaman kembali pohon yang telah di tebang.
English Abstract
The Jurang Susuh River in Giripurno Village, Bumiaji District is one of the rivers whose flow passes through residential areas, plantations, rice fields and development activities. These activities can have a negative impact on river quality, such as disposing of waste directly into water bodies. Various activities carried out around the river also affect the condition of river water quality which can cause changes in environmental factors so that it will be bad for the life of aquatic organisms. Therefore, it is necessary to observe the water quality of the Jurang Susuh river in Giripurno Village, Bumiaji District, Batu City so that the aquatic environment can be maintained in a sustainable quality for both human and animal activities and other aquatic organisms. The research location consisted of 6 sampling points located in Giripurno Village, Bumiaji District, Batu City, East Java. Environmental parameters that were measured included non-water, namely substrate type and current velocity, and physical factors, namely temperature and chemical factors, including acidity (pH), dissolved oxygen (DO), total organic matter (TOM), ammonia and hardness. The sampling method for macroinvertebrates was carried out using the kicking method with a length of 10 m using a net with a mesh size of 500 m. Data analysis used the BMWP (Biological Monitoring Working Party) index and continued with calculating scores using the ASPT (Average Score per Taxon) formula. The purpose of this study was to determine the composition and macroinvertebrates as well as the health condition of the water quality of the Jurang Susuh river. This research is expected to be used as scientific information on waters, especially on rivers and macroinvertebrates in biomonitoring lectures. In addition, it can also be used as a source of information for further research on macroinvertebrates in the Jurang Susuh River. The purpose of this study was to determine the composition and macroinvertebrates as well as the health condition of the water quality of the Jurang Susuh river. This research is expected to be used as scientific information on waters, especially on rivers and macroinvertebrates in biomonitoring lectures. In addition, it can also be used as a source of information for further research on macroinvertebrates in the Jurang Susuh River. The results of the study showed that the macroinvertebrates found in the Jurang Susuh River in Giripurno Village, Bumiaji District, Batu City, amounted to 23 taxa consisting of 23 taxa, consisting of 11 orders (Ephemeroptera, Trichoptera, Coleoptera, Hemiptera, Plecoptera, Odonata, Gastropods, Diptera, and Decapoda) 5 Class (Gastropoda, Insecta, Polychaeta, Crustacea, Oligochaeta) and 1 Species (Chironomus thummi). The highest number of taxa was at station 1 with 8 taxa including Thiaridae, Baetidae, Caenidae, Elmidae, Perlidae, Simuliidae, Planorbidae, Tipulidae, Hydropsychidae, Chironomus tummi, and Lumbriculidae. The lowest number of taxa was at station 2 with 8 taxa including Lumbriculidae, Chironomus tummi, Thiaridae, Baetidae, Elmidae, Hydropsychidae, Syrphidae, and Planorbidae. Macroinvertebrates that are often found are from the Gastropod class (Thiaridae and Planorbidae) and the Chironomus tummi species from the Choronomidae. The results of the analysis using the BMWP-ASPT index method obtained the results of station 1 with a value of 4.8 and stations 2–6 with a value of 3.5 each;2.8; 3.5; 3.3. These results indicate that the condition of the waters of the Jurang Susuh River has been included in the bad category. The results of the environmental parameters of the Jurang Susuh River flow are substrates including medium rock to mud and sand, the current speed ranges from 0.2-0.32 m/sec. Current velocity results indicate that the current velocity of the Jurang Susuh River is classified as slow current. Measurement of water quality parameters at temperatures ranging from 20–24 , degrees of acidity ranging from 7.5–7.84, TOM levels ranging from 6.32–18, 96 mg/L, DO levels ranging from 5.4–11.5 mg/L. L, ammonia levels ranged from 0.124–0.249 mg/L and hardness ranged from 148– 188 mg/L. Based on the results of the study, suggestions that can be given are to carry out rehabilitation by implementing a system of replanting trees that have been cut down. In addition, the Batu city government is expected to be able to build a waste bank facility so that waste can be processed and not directly dumped into river bodies.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0522080554 |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Manajemen Sumberdaya Perairan |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 17 Jan 2024 01:56 |
| Last Modified: | 17 Jan 2024 01:56 |
| URI: | http://repository.ub.ac.id/id/eprint/207775 |
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