Kemelimpahan Larva Hydropsychidae sebagai Bioindikator Kualitas Perairan Sungai Code Daerah Istimewa Yogyakarta
Nur Arifah Novanti, Prof. Dr. Suwarno Hadisusanto, S.U.
2023 | Skripsi | BIOLOGI
Hydropsychidae terdistribusi secara luas di perairan dan memiliki peranan
penting dalam ekosistem sungai, sehingga umum dijadikan indikator biologis
untuk pemantauan kualitas perairan. Aliran Sungai Code melewati kawasan
urbanisasi dengan padatnya penduduk di sekitar aliran Sungai Code. Hal tersebut
memicu masukan limbah antropogenik ke dalam badan air. Oleh karena itu tujuan
dari penelitian ini adalah untuk meninjau kondisi perairan Sungai Code
berdasarkan parameter fisikokimia dan pengaruhnya terhadap kemelimpahan larva
Hydropsychidae. Penelitian dilakukan
pada bulan Juli 2022 hingga bulan November 2022, terdapat 5 lokasi penelitian
dengan 2 kali pengulangan pencuplikan setiap stasiun penelitian. Pencuplikan sampel
larva Hydropsychidae digunakan alat surber sampler. Analisis data
meliputi kemelimpahan dan analisis korelasi regresi. Total kemelimpahan larva
Hydropsychidae yang tercuplik selama 5 bulan penelitian sebesar 267 ind/0,27 m3.
Berdasarkan stasiun penelitian kemelimpahan larva tertinggi di Stasiun V 172
ind/0,27m3. Sementara itu berdasarkan bulan pencuplikan,
kemelimpahan larva Hydropsychidae tertinggi di bulan Juli yaitu sebesar 113
ind/0,27m3 dan terendah di bulan November sebesar 21 ind/0,27m3.
Pengkayaan nutrien pada badan air Sungai Code dan curah hujan mempengaruhi
kondisi parameter fisikokimia dan kemelimpahan larva Hydropsychidae. Berdasarkan
analisis korelasi regresi, parameter fisikokimia yang memiliki pengaruh kuat
terhadap kemelimpahan larva Hydropsychidae adalah pH yang berkorelasi negatif.
Hydropsychidae are
widely distributed in waters and play an important role in river ecosystems, so
they are commonly used as biological indicators for water quality monitoring.
The Code Stream flows through an urbanized area with a dense population around the
Code Stream. This triggers the input of anthropogenic waste into the water
body. Therefore, the purpose of this study was to assess the condition of Code
River waters based on the abundance of Hydropsychidae larvae and its influence
on physicochemical parameters in Code Stream.
The research was conducted from July 2022 to November 2022, there were 5
research locations with 2 repetitions of sampling at each research station.
Sampling of Hydropsychidae larvae used a surber sampler tool. Data analysis
included abundance and regression correlation analysis. The total abundance of
Hydropsychidae larvae collected during the 5 months of the study was 267
ind/0.27 m3. Based on the research station, the highest larval
abundance was 172 ind/0.27 m3 in Station V. Meanwhile, based on the
month of sampling, the abundance of Hydropsychidae larvae was highest in July
at 113 ind/0.27m3 and lowest in November at 21 ind/0.27m3.
Nutrient enrichment and rainfall intensity influenced the condition of
physicochemical parameters and larval abundance. Based on regression
correlation analysis, the physicochemical parameter that has a strong influence
on the abundance of Hydropsychidae larvae is pH, which is negatively correlated
Kata Kunci : Curah hujan, Larva Hydropsychidae, Limbah, Nutrien