Pitaloka, Tribuana Kusumawardhani and Dr. Ir. Sri Sudaryanti,, MS. (2023) Bioassessment Sungai Genteng Menggunakan Komunitas Makroinvertebrata di Desa Tirtoyudo, Kecamatan Tirtoyudo, Kabupaten Malang, Jawa Timur. Sarjana thesis, Universitas Brawijaya.
Abstract
Sungai Genteng merupakan anak sungai dari DAS Purwo yang terletak di Desa Tirtoyudo, Kecamatan Tirtoyudo, Kabupaten Malang. Alih fungsi lahan yang terjadi di sekitar Sungai Genteng menjadi lahan permukiman, pertanian dan perkebunan serta lahan usaha lainnya menyebabkan penurunan kualitas perairan sungai. Serta limbah yang dihasilkan dari kegiatan tersebut jika langsung dibuang ke badan perairan dapat merubah komposisi makroinvertebrata yang hidup di Sungai Genteng. Tujuan dilakukannya penelitian ini yakni untuk menganalisis faktor lingkungan dari makroinvertebrata serta mengetahui komposisi makroinvertebrata di Sungai Genteng dan menduga status kesehatan Sungai Genteng di Desa Tirtoyudo, Kecamatan Tirtoyudo, Kabupaten Malang. Penelitian ini dapat dijadikan salah satu sumber keilmuan biomonitoring perairan Sungai Genteng serta sebagai dasar pertimbangan untuk upaya pelestarian Sungai Genteng. Analisis penelitian ini dilakukan di Laboratorium Perikanan Air Tawar Universitas Brawijaya, Sumberpasir dan Laboratorium Hidrobiologi Fakultas Perikanan dan Ilmu Kelautan Universitas Brawijaya. Pelaksanaan penelitian dilaksanakan pada bulan Januari–Mei 2023. Metode yang digunakan dalam pelaksanaan penelitian ini adalah metode survei. Pengambilan sampel makroinvertebrata dilakukan dengan teknik kicking menggunakaan jala tangan (ukuran mata jaring 500 μm). Data yang diperoleh dianalisis menggunakan indeks Biological Monitoring Work Party-Average Score Per Taxon (BMWP-ASPT). Hasil dari penelitian ini pada Sungai Genteng ditemukan 19 famili dari 12 ordo yakni Plecoptera, Diptera, Sorbeoconcha, Trichoptera, Ephemeroptera, Decapoda, Coleoptera, Anisoptera, Lumbriculida, Hemiptera, Rhynchobdellida dan Architaenioglossa. Jumlah famili tertinggi ditemukan pada stasiun 1 Sungai Genteng di Desa Tirtoyudo dengan jumlah 14 famili, sedangkan yang terendah terdapat pada stasiun 2 Sungai Genteng di Desa Tirtoyudo dengan jumlah 5 famili. Hasil indeks BMWP-ASPT terendah didapatkan pada stasiun 5 yang memiliki tata guna lahan permukiman dan pabrik kopi dengan nilai ASPT nya adalah 4,0 (kategori perairan sedang−buruk), sedangkan hasil indeks BMWP-ASPT tertinggi didapatkan pada stasiun 3 yang memiliki tata guna lahan perkebunan singkong dan jalan raya dengan nilai ASPT nya adalah 5,3 (kategori perairan baik). Sungai Genteng secara keseluruhan termasuk ke dalam kategori perairan sungai yang baik hingga sedang−buruk. Saran yang diberikan berdasarkan data hasil penelitian ini adalah perlu adanya kontrol terhadap kegiatan manusia yang limbahnya dibuang langsung ke sungai. Serta perlu adanya pembentukan lembaga khusus yang menangani permasalahan pencemaran sungai di Desa Tirtoyudo.
English Abstract
Genteng River is a part of Purwo watershed that is located in Tirtoyudo Village, Tirtoyudo District, Malang Regency. The conversion of land functions around the Genteng River into residential, agricultural and plantation lands and other business lands has resulted decrease in the quality of the river waters. As well as the waste generated from these activities if it is directly discharged into the water bodies it can change the composition of the macroinvertebrates that live in the Genteng River. The purpose of this study is to analyze the environtmental factor of macroinvertebrate, also determine the composition of macroinvertebrates in the Genteng River and to estimate the health status of the Genteng River in Tirtoyudo Village, Tirtoyudo District, Malang Regency. This research can be used as a scientific source for biomonitoring of the Genteng River and as a basis for consideration to preserve the Genteng River. The analysis of this research was carried out at the Freshwater Fisheries Laboratory of Brawijaya University, Sumberpasir and the Hydrobiology Laboratory of the Faculty of Fisheries and Marine Sciences, Universitas Brawijaya. The research was carried out in January-May 2023. The method used in this research is a survey method. Sampling of macroinvertebrates was carried out by kicking technique using hand nets (500 μm mesh size). The data obtained was analyzed using the Biological Monitoring Work Party-Average Score Per Taxon (BMWP-ASPT) index. The result of this study is environmental factor in Genteng River is in an optimum state for macroinvertebrates. Also, in the Genteng River was found 19 macroinvertebrate families from 12 orders namely Plecoptera, Diptera, Sorbeoconcha, Trichoptera, Ephemeroptera, Decapoda, Coleoptera, Anisoptera, Lumbriculida, Hemiptera, Rhynchobdellida and Architaenioglossa. The highest number of family was found at station 1 in Genteng River, Trtoyudo Village with 14 family, while the lowest was found at station 2 in Genteng River, Tirtoyudo Village with 5 family. The lowest BMWP-ASPT index results were obtained at station 5 which has land use for settlements and coffee factories with an ASPT value of 4.0 (moderate-bad waters category), while the highest BMWP-ASPT index results were obtained at station 3 which has cassava plantation land and highways with an ASPT value of 5.3 (good waters category). The Genteng River is included in the category of good to moderate-bad river waters. The advice given based on the data from this research is need a control over human activities whose waste is discharged directly into the river. As well as the need for the establishment of a special institution that handles the problem of river pollution in Tirtoyudo.
Item Type: | Thesis (Sarjana) |
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Identification Number: | 0523080732 |
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: | 11 Jan 2024 04:15 |
Last Modified: | 11 Jan 2024 04:15 |
URI: | http://repository.ub.ac.id/id/eprint/206063 |
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