INVENTARISASI KEANEKARAGAMAN IKAN SERTA KUALITAS AIR PADA SITU BAGENDIT PASCA REVITALISASI

Abdul Faqih Fajar Sidik, - and Hertien Koosbandiah Surtikanti, - and Hernawati, - (2025) INVENTARISASI KEANEKARAGAMAN IKAN SERTA KUALITAS AIR PADA SITU BAGENDIT PASCA REVITALISASI. S1 thesis, Universitas Pendidikan Indonesia.

Abstract

Situ Bagendit merupakan salah satu danau alami di Kabupaten Garut yang mengalami penurunan kualitas lingkungan, sehingga dilakukan revitalisasi untuk memperbaiki ekosistem dan meningkatkan daya tarik wisata. Pengambilan sampel di tiga stasiun pengamatan berdasarkan karakteristik perairan. Parameter yang diamati meliputi faktor biotik keanekaragaman ikan) dan faktor abiotik (parameter fisik dan kimia air). Indeks keanekaragaman Shannon-Wiener digunakan untuk menilai kestabilan komunitas ikan, sedangkan fisik dan kimia air dianalisis berdasarkan baku mutu air menurut PP No. 22 Tahun 2021 serta klasifikasi trofik danau. Hasil penelitian menunjukkan bahwa data kualitas air diatas ambang batas sesuai dengan PP No 21 Tahun 2021 yaitu kecerahan air (75- 136 cm), Chemical Oxygen Demand (COD) (21-31 mg/L), dan Nitrogen total (1,22-1,59). Keanekaragaman ikan berada pada tingkat sedang dengan indeks 1,22. Nilai kelimpahan berkisar di 4-55% dengan nilai kelimpahan tertinggi dan paling banyak ditemukan yaitu spesies Hemichromis elongatus (nila zebra) namun tidak ada spesies yang dominansi. Ditemukan spesies ikan sebagai indikator pencemaran yaitu Pterygoplichthys pardalis (sapu-sapu) karena kemampuan adaptasinya yang tinggi terhadap air yang tercemar. Perairan Situ Bagendit berdasarkan faktor abiotik dan biotik menandakan adanya eutrofikasi tercemar bahan organik. Keanekaragaman ikan pada Situ Bagendit pasca revitalisasi mengalami penurunan sebelumnya terdapat 9 jenis ikan dan setellah revitalisai memiliki 5 jenis ikan, terdapat 3 species baru yang invasif. Kondisi ekosistem Situ Bagendit masih memerlukan pengelolaan berkelanjutan untuk mempertahankan kualitas perairan dan biodiversitas Situ Bagendit is a natural lake in Garut Regency that has experienced environmental degradation, so revitalization was carried out to improve the ecosystem and increase its tourist appeal. Sampling at three observation stations was based on water characteristics. Observed parameters included biotic factors (fish diversity) and abiotic factors (physical and chemical parameters of the water). The Shannon-Wiener diversity index was used to assess the stability of the fish community, while the physical and chemical water were analyzed based on water quality standards according to Government Regulation No. 22 of 2021 and the lake's trophic classification. The results showed that the water quality data was above the threshold according to Government Regulation No. 21 of 2021, namely water clarity (75-136 cm), Chemical Oxygen Demand (COD) (21-31 mg/L), and total nitrogen (1.22-1.59). Fish diversity was at a moderate level with an index of 1.22. Abundance values range from 4-55% with the highest and most abundant value being the Hemichromis elongatus (zebra tilapia) species, but no dominant species. A fish species was found as an indicator of pollution, namely Pterygoplichthys pardalis (sapu-sapu) because of its high adaptability to polluted water. The waters of Situ Bagendit based on abiotic and biotic factors indicate eutrophication polluted by organic matter. The diversity of fish in Situ Bagendit after revitalization has decreased. Previously there were 9 species of fish and after revitalization there were 5 species of fish, there were 3 new invasive species. The condition of the Situ Bagendit ecosystem still requires sustainable management to maintain water quality and biodiversity.

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Item Type:	Thesis (S1)
Additional Information:	https://scholar.google.com/citations?view_op=list_works&hl=en&user=r_I3yAIAAAAJ ID SINTA Dosen Pembimbing: HERTIEN KOOSBANDIAH S: 5995733 Hernawati: 6005188
Uncontrolled Keywords:	Kata kunci: keanekaragaman ikan, kualitas air, Situ Bagendit, revitalisasi, bioindikator fish diversity, water quality, Situ Bagendit, revitalization, bioindicators
Subjects:	Q Science > QH Natural history > QH301 Biology Q Science > QL Zoology S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Biologi - S1 > Program Studi Biologi (non kependidikan)
Depositing User:	Abdul Faqih Fajar Sidik
Date Deposited:	03 Sep 2025 00:50
Last Modified:	03 Sep 2025 00:50
URI:	http://repository.upi.edu/id/eprint/137277

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