Keanekaragaman makroinvertebrata sebagai bioindikator kualitas perairan Waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung

Fauziyyah, Itsna (2012) Keanekaragaman makroinvertebrata sebagai bioindikator kualitas perairan Waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung. Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim.

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Abstract

INDONESIA:

Waduk Wonorejo merupakan salah satu waduk di Sungai Brantas Hulu terletak di Kali Gondang. Beranekaragamnya aktivitas manusia di sekitar waduk Wonorejo seperti penggunaan lokasi tersebut sebagai areal ekowisata, pemanfaatan air dalam kehidupan sehari-hari, aktivitas pertanian dan pembudidayaan ikan menyebabkan pencemaran. Oleh karena itu perlu dilakukan penelitian tentang Keanekaragaman Makroinvertebrata Sebagai Bioindikator Kualitas Perairan Waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung. Tujuan penelitian ini untuk mengetahui keanekaragaman makroinvertebrata sebagai bioindikator kualitas perairan waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung serta mengetahui kualitas perairan dilihat dari faktor fisika dan kimia.

Penelitian ini menggunakan metode deskriptif kuantitatif, dilaksanakan pada bulan Juni sampai Agustus 2012 di Waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung. Sampel diambil pada lima stasiun pengamatan di masing-masing perairan dengan menggunakan jaring air dan Ekman dredge. Sampel diidentifikasi di laboratorium Ekologi dan Optik Jurusan Biologi, Fakultas Sains dan Teknologi Universitas Islam Negeri Maulana Malik Ibrahim Malang.

Hasil penelitian makroinvertebrata di perairan waduk Wonorejo terdiri dari: 12 famili yaitu: Gerridae 1, Gerridae 2, Gerridae 3, Mesoveliidae, Libellulidae, Coenagrionidae, Aeshnidae, Chironomidae, Viviparidae, Thiaridae, Palaemonidae dan Potamonautidae. Berdasarkan klasifikasi derajat pencemaran air berdasarkan Indeks Keanekaragaman dan Dominansi makroinvertebrata di perairan Waduk Wonorejo tergolong tidak tercemar. Nilai indeks keanekaragaman stasiun I (2,13), stasiun II (1,81), stasiun III (1,99), stasiun IV (2,20) dan stasiun V (2,12). Baku mutu perairan waduk Wonorejo berdasarkan PP No. 82 Tahun 2001 termasuk ke dalam golongan kelas 2, yaitu perairan yang diperuntukan untuk sarana rekreasi air, budidaya ikan air tawar, peternakan dan untuk mengairi tanaman. Terhadap pengukuran pH, DO, COD, NO3, dan TDS menunjukkan untuk lima stasiun sesuai untuk baku mutu air kelas II, sedangkan pengukuran PO4 dan BOD menunjukkan untuk kelima stasiun tidak sesuai untuk baku mutu air kelas II akan tetapi sesuai untuk baku mutu air kelas III dan TSS menunjukkan nilai pada stasiun I, IV, V sesuai untuk baku mutu air kelas II sedangkan untuk stasiun II dan III sesuai baku mutu air untuk kelas III.

ENGLISH:

Wonorejo reservoir is one of the reservoirs which can be found at the upper course of Brantas River in Kali Gondang. Various kinds of people activities around can be found here, such as: utilizing the location as a tourism profit oriented, utilizing water for people’s daily need, farming activity, and even cultivating fish polluting the water. Therefore, it is essential to conduct a research about the diversity of macro-invertebrate as bio-indicator of the irrigation quality in Wonorejo reservoir. This research is aimed to know the diversity of macro- invertebrate contained as bio-indicator of irrigation quality and find out the irrigation quality based on the physical and chemical factors.

This research uses decriptive-quantitative method conducted in june upto August 2012 at Wonorejo Reservoir at the District of Pagerwojo Tulungagung Regency. The data samples are taken in five different observation stations in irrigational areas by using water dragnet and Ekman dredge. The data samples are identified in the Ecology and Optical Laboratory at biology department, Faculty of Science and Technology Maulana Malik Ibrahim Islamic State University of Malang.

The result of this research shows that macro-invertebrate in the irrigational areas of Wonorejo reservoir consists of 12 families: Gerridae 1, Gerridae 2, Gerridae 3, Mesoveliidae, Libellulidae, Coenagrionidae, Aeshnidae, Chironomidae, Viviparidae, Thiaridae, Palaemonidae and Potamonautidae. Based on the classification of water pollution level by using diversity index and the dominance of macro-invertebrate in Wonorejo Reservoir, the pollution can be considered as a not pollution with the diversity index value as follow: station I (2,13), station II (1,81), station III (1,99), station IV (2,20), and station V (2,12). The water irigation standard quality of Wonorejo reservoir, according to PP. No. 82 tahun 2001, can be included with those in class 2 which are utilized as water resort, fresh water fish cultivation, animal husbandry, and for farming irrigation. The observation result of pH, DO, COD, NO3, and TDS, it shows that the five stations fulfill the water quality standard of class II, while the measurement of PO4 and BOD shows that the five stations do not reach the qualification of class II water quality standard. However, it meets the requirement of water standard quality of class III and it shows that TSS in station I, IV, V reach the criteria of water standard quality of class II while in station II and III meet the requirement of water standard quality of class III.

Item Type: Thesis (Undergraduate)
Supervisor: Utami, Ulfah and Syarifah, Umaiyatus
Keywords: Keanekaragaman; Makroinvertebrata; Waduk Wonorejo Kecamatan Pagerwojo Kabupaten Tulungagung; Diversity; Macro-invertebrate; Wonorejo Reservoir in the District of Pagerwojo Tulungagung Regency
Subjects: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060207 Population Ecology
Departement: Fakultas Sains dan Teknologi > Jurusan Biologi
Depositing User: Chusnul Faida Ulfa
Date Deposited: 04 Aug 2015 07:00
Last Modified: 04 Aug 2015 07:00
URI: http://etheses.uin-malang.ac.id/id/eprint/886

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