Keanekaragaman makrozoobentos sebagai bioindikator kualitas air Sungai Cokro Malang

Maula, Lia Hikmatul (2018) Keanekaragaman makrozoobentos sebagai bioindikator kualitas air Sungai Cokro Malang. Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim.

[img]
Preview
Text (Fulltext)
11620051.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (3MB) | Preview

Abstract

INDONESIA:

Makrozoobentos adalah hewan perairan yang dapat dijadikan bioindikator kualitas perairan karena perubahan populasinya sangat dipengaruhi faktor lingkungan perairan. Penelitian ini dilakukan di kecamatan pakis dan kecamatan tumpang kabupaten malang karena wilayah perairan tersebut terdapat sumber bahan pencemar dengan kondisi yang diduga berbeda-beda. Tujuan penelitian ini adalah mengetahui hubungan sifat fisika dan kimia pada perairan Sungai Cokro Malang dengan indeks keanekaragaman dan dominansi makrozoobentos.

Penelitian ini termasuk jenis deskriptif kuantitatif. Wilayah penelitian dibagi menjadi empat stasiun berdasarkan dugaan tingkat pencemaran. Pengambilan sampel dengan purposive sampling. Perhitungan indeks keanekaragaman dan dominansi dengan rumus indeks keanekaragaman Shannon-Wienner. Variabel yang diukur meliputi suhu; pH; DO; BOD; COD; TDS;dan TSS. Analisis hubungan antara indeks keanekaragaman dengan variabel fisika kimia menggunakan rumus Pearson denganmenggunakan SPSS 16.0.

Hasil penelitian menunjukkan makrozoobentos yang ditemukan terdiri dari 10 famili yaitu Lymnaedae; Hydropsychidae; Philopotamidae; Ghomphidae; Chironomidae; Heptageniidae; Chaenidae; Pyralidae; Thiaridae; dan Coenagrionidae. Pada masing-masing stasiun pengamatanterdapat beberapa perbedaan berdasarkan nilai indeks keanekaragaman; Stasiun I dan Stasiun II memiliki keanekaragaman yang sedang (1 < H’ < 3) sedangkan pada Stasiun III dan Stasiun IV menunjukkan keanekaragaman rendah (H’ < 1). Berdasarkan analisis korelasi Pearson menunjukkan adanya hubungan sangat kuat keanekaragaman makrozoobentos dengan variabel suhu; kuat dengan variabel TDS dan pH; sedang dengan variabel COD; dan rendah dengan variabel TSS; BOD; dan DO. Keanekaragaman tertinggi terdapat pada stasiun II yaitu 1;25 dan family yang mendominansi adalah kelas gastropoda yaitu family Lymnaedae dan Triaridae. Hasil analisis juga menunjukkan bahwa DO berkorelasi searah sedangkan pH; suhu; COD; TSS;TDS dan BOD berkorelasi berlawanan.

ENGLISH:

Macrozoobentos are aquatic animals that can be used as bio-indicators of water quality because the population changes are strongly influenced by the aquatic environment. This research was conducted in sub-district of Pakis and subdistrict of Malang Regency; because the water area contained the source of pollutant with different suspected condition. The purpose of this study is to determine the relationship of physical and chemical properties in the waters of Cokro River Malang with the index of diversity and dominance of macrozoobentos.

This research includes quantitative descriptive type. The study area was divided into four stations based on alleged pollution level. It use purposive sampling as the sampling method. Calculation of indices of diversity and dominance with Shannon-Wienner diversity index formula. factors measured include temperature; pH; DO; BOD; COD; TDS and TSS. Analyze the relationship using the Pearson formula using SPSS 16.0.

The results showed that the macrozoobentos were found: 10 families: Lymnaedae; Hydropsychidae; Philopotamidae; Ghomphidae; Chironomidae; Heptageniidae; Chaenidae; Pyralidae; Thiaridae;and Coenagrionidae. In each observation station there are some differences based on the value of diversity index; Station I and Station II have moderate diversity (1 < H’ < 3) while in Station III and Station IV show low diversity (H’ < 1); whereas based on Pearson correlation analysis using SPSS 16.0 indicates a linkage between physical and chemical factors with the value of the macrozoobenthic diversity index located on the Cokro River. The highest diversity found in station II is 1.25 and the family that dominates is the class of gastropods namely family Lymnaedae and Triaridae. The results of the analysis also show that the DO correlates unidirectional while the pH; temperature; COD; TSS; TDS and BOD are correlated opposite.

Item Type: Thesis (Undergraduate)
Supervisor: Minarno, Eko Budi and Nashichuddin, Achmad
Keywords: Keanekaragaman; Makrozoobentos; Bioindikator Sungai Cokro Malang; Diversity; Makrozoobentos; Bioindicator; Cokro River Malang
Departement: Fakultas Sains dan Teknologi > Jurusan Biologi
Depositing User: Durrotun Nafisah
Date Deposited: 27 Apr 2018 03:10
Last Modified: 27 Apr 2018 03:10
URI: http://etheses.uin-malang.ac.id/id/eprint/10990

Actions (login required)

View Item View Item