Sukma, Cindy Amanda and Dr. Ir. Sri Sudaryanti,, MS. (2022) Bioassessment Menggunakan Komunitas Makroinvertebrata untuk Pendugaan Kesehatan Sungai Torong di Kecamatan Batu Kota Batu Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Sungai Torong merupakan salah satu anak Sungai Brantas hulu. Sumber mata air Sungai Torong terletak di Kelurahan Sisir, Kota Batu. Kerusakan ekosistem sungai di Brantas Hulu disebabkan oleh alih fungsi lahan dan pembuangan limbah aktivitas manusia ke sungai. Pemantauan kesehatan Sungai Torong dilakukan melalui bioassessment dengan komunitas makroinvertebrata. Tujuan penelitian yakni untuk menganalisis kelimpahan dan komposisi makroinvertebrata serta status kesehatan Sungai Torong. Manfaat penelitian ditujukan kepada mahasiswa, program studi Manajemen Sumber Daya Perairan, dan pemerintah. Penelitian dilaksanakan pada bulan Februari sampai Juni 2022. Metode yang digunakan pada penelitian adalah metode survei. Titik pengambilan sampel berjumlah 6 stasiun yang ditentukan berdasarkan metode purposive sampling. Pengambilan sampel makroinvertebrata dilakukan menggunakan jaring kicking sejauh 10 meter. Parameter lingkungan yang diukur meliputi kecepatan arus, substrat dasar, suhu, pH, DO, TOM, amonia, dan kesadahan. Analisis data menggunakan kelimpahan relatif (KR) dan indeks biological monitoring working party-average score per taxon (BMWP-ASPT). Hasil pengukuran parameter lingkungan menunjukkan kadar TOM di Sungai Torong berkisar antara 6,32–22,12 mg/L sehingga dikategorikan rendah. Kadar amonia berkisar antara 0,05–0,24 mg/L yang berarti kurang baik untuk mendukung kehidupan makroinvertebrata. Hasil identifikasi menunjukkan makroinvertebrata yang ditemukan di Sungai Torong berjumlah 21 taksa meliputi 4 kelas (Oligochaeta, Hirudinea, Gastropoda, Bivalvia) dan 5 ordo (Decapoda, Ephemeroptera, Odonata, Diptera, Trichoptera). Jumlah taksa terendah terdapat pada stasiun 1 di Kelurahan Sisir dan stasiun 5 di Kelurahan Temas yaitu 11 taksa. Jumlah taksa tertinggi terdapat pada stasiun 6 di Kelurahan Temas yaitu 16 taksa. Makroinvertebrata dengan jumlah terendah dan jarang ditemukan antara lain Hydrobiidae di stasiun 2 Kelurahan Sisir (KR 1,15%), Coenagrionidae di stasiun 3 Kelurahan Temas (KR 0,98%), dan Branchiura di stasiun 6 Kelurahan Temas (KR 0,24%). Makroinvertebrata dengan jumlah tertinggi adalah Hydropsychidae di stasiun 6 Kelurahan Temas yaitu 152 ind/5m2 dan KR 36,45%. Hasil analisis indeks BMWP-ASPT di Sungai Torong berkisar antara 2,86–3,27. Rendahnya nilai ASPT pada semua stasiun karena sudah ditemukan Lumbriculidae, Lumbricidae, Tanypodinae, Chironomus thummi. Data hasil menunjukkan bahwa status kesehatan Sungai Torong berdasarkan nilai KR dan indeks BMWP-ASPT sudah dikategorikan buruk dan tercemar berat. Berdasarkan data hasil yang diperoleh maka peneliti memberikan saran antara lain Dinas Pekerjaan Umum dan Perumahan Rakyat (PUPR) Kota Batu diharapkan membentuk badan pengendalian pencemaran di Sungai Torong. Masyarakat pada stasiun 1 dan 2 di Kelurahan Sisir serta stasiun 3, 4, 5, dan 6 di Kelurahan Temas sebaiknya tidak membuang sampah secara sembarangan ke sungai, mengolah limbah perikanan dan pertanian sebelum dibuang ke badan sungai, serta menggunakan pupuk organik untuk kegiatan pertanian.
English Abstract
The Torong River is one of the tributaries of the Brantas upstream. The Torong River spring is located at Sisir village, Batu City. The damage of river ecosystems in Brantas upstream is caused by the land conversion and disposal of human activities waste into rivers. Monitoring the health of the Torong River was carried out through a bioassessment with the macroinvertebrate community. The purposes of the research were to analyze the abundance and composition of macroinvertebrates and the health status of the Torong River. The benefits of the research were aimed to the students, the Aquatic Resources Management Study Program, and the government. The research was conducted from February to June 2022. The method used in the research was the survey method. There are 6 sampling points, which are determined based on a purposive sampling method. The macroinvertebrate sampling was carried out using kicking nets as far as 10 meters. The measured environmental parameters included current velocity, base substrate, temperature, pH, DO, TOM, ammonia, and hardness. Data analysis was using the relative abundance (KR) and biological monitoring working party-average score per taxon (BMWP-ASPT) index. The measurement results of environmental parameters showed that the TOM in the Torong River ranged from 6,32–22,12 mg/L, so it was categorized as low. Ammonia ranged from 0,05–0,24 mg/L, which means it is not good enough to support macroinvertebrate life. The identification results showed that there were 21 macroinvertebrates found in the Torong River covering 4 classes (Oligochaeta, Hirudinea, Gastropods, Bivalvia) and 5 orders (Decapoda, Ephemeroptera, Odonata, Diptera, Trichoptera). The lowest number of taxa was at station 1 at Sisir Village and station 5 at Temas Village, which was 11 taxa. The highest number of taxa was at station 6 at Temas Village, which was 16 taxa. The lowest number of macroinvertebrates was founded including Hydrobiidae at station 2 at Sisir Village (KR 1,15%), Coenagrionidae at station 3 at Temas Village (KR 0,98%), and Branchiura at station 6 at Temas Village (KR 0,24%). The highest number was Hydropsychidae at station 6 at Temas Village, 152 ind/5m2 and KR 36,45%. The analysis result of the BMWP-ASPT index in the Torong River ranged from 2,86– 3,27. The low ASPT score at all stations caused there were already found Lumbriculidae, Lumbricidae, Tanypodinae, Chironomus thummi. The data results showed that the health status of the Torong River based on the KR and the BMWPASPT index was categorized as poor and heavily polluted. Based on the data obtained, the researcher gives suggestions for the Department of Public Works and Public Housing (PUPR) at Batu City, which is expected to form an agency for controlling pollution in the Torong River. Society at station 1 and 2 at Sisir Village and station 3,4,5, and 6 at Temas Village should not throw the trash into the river, treat fishery and agricultural waste before being dumped into the river, and use organic fertilizers for agricultural activities.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 0522080103 |
| Subjects: | 300 Social sciences > 333 Economics of land and energy > 333.9 Other natural resources > 333.95 Biological resources > 333.956 Fishes |
| Divisions: | Fakultas Perikanan dan Ilmu Kelautan > Manajemen Sumberdaya Perairan |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 07 Sep 2022 07:25 |
| Last Modified: | 07 Sep 2022 07:25 |
| URI: | http://repository.ub.ac.id/id/eprint/194020 |
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