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Keanekaragaman Ikan di Sungai Luk Ulo Kabupaten Kebumen Wahyuni, Titik Tri; Zakaria, Agus
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 35, No 1 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2018.35.1.592

Abstract

Freshwater fish is one of the biodiversity that build river ecosystem structure. Many human activities are carried out in the river as well as in the surrounding areas, such as removal of household waste, excessive fish exploitation and land use activities. This might changes river characteristics and lead to population and biodiversity decline.This research aim to 1) analyzethe diversity and species composition of fishin Luk Ulo River of Kebumen Regency,and 2) analyze the interaction among environmental factors with fish abundance in Luk Ulo River of Kebumen Regency. This research used survey method with cluster random sampling. The river was divided into three different region; upper-stream, middle-stream, and down-stream. Fish collected from 9 stations, i.e. 3 stations in the upper-stream, 3 stations in the middle-stream, and 3 stations in the down-stream. Morphology data were analyzed descriptively in order to make species description. The influences of environmental factor to species abundance were analyzed using Principal Component Analysis (PCA).The results showed that the number of fish obtained in this study were 72 individuals classified into 7 families and 13 species. The diversity and abundance of fish are influenced by physical and chemical factors ie temperature, TSS, pH, BOD5, COD, turbidity, DO, conductivity, salinity, current and substrate. BOD5 concentration was correlated positively with fish abundance with a correlation value of 0.540. In contrast, the effect of temperature and pH has a negative correlation to fish abundance with correlation values of -0.731 and -0.024. Dissolved oxygen (DO) and conductivity no effect on fish abundance.
Analisis Parameter Fisika-Kimia sebagai Salah Satu Penentu Kualitas Sungai Lok Ulo, Kabupaten Kebumen Prakoso, Bagas; Wahyuni, Titik Tri
JURNAL KRIDATAMA SAINS DAN TEKNOLOGI Vol 1, No 1 (2019): JURNAL KRIDATAMA SAINS DAN TEKNOLOGI
Publisher : JURNAL KRIDATAMA SAINS DAN TEKNOLOGI

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk menganalisis faktor fisika dan kimia di sungai Lok Ulo, Kabupaten Kebumen. Penelitian ini dilakukan dengan metode survai lapangan. Sungai Lok Ulo merupakan sungai yang mengalir dari utara ke selatan dan melintasi tiga Kabupaten yaitu Kabupaten Wonosobo, Kabupaten Banjarnegara dan Kabupaten Kebumen. Daerah Aliran Sungai (DAS) yang masuk ke wilayah Kebumen seluas 572,84365 Km2. Penentuan pengambilan sampel air dipilih 3 stasiun berdasarkan pertimbangan untuk mewakili perairan meliputi : Stasiun I (bagian hulu sungai), stasiun II (bagian tengah sungai) dan stasiun III (bagian hilir sungai). Masing-masing diambil dua sampel air. Sampel air dibawa ke laboratorium untuk analisis kimia. Hasilnya menunjukan bahwa hasil pengukuran parameter fisika seperti : Temperatur air berkisar antara 26.5 – 32 0C, Padatan tersuspensi total (TSS) air berkisar antara 8.95 – 18.20 mg/L dan Padatan terlarut total (TDS) berkisar antara 107 – 9865 mg/L. Sedangkan faktor Kimia ditemukan bahwa rata-rata pH air 6.7, Oksigen terlarut (DO) berkisar antara 7.6 – 10.05 mg/L, CO2 di air berkisar antara 6.83 mg/L – tidak terdeteksi, dan Biochemical Oxygen Demand (BOD) berkisar antara 7.6 – 13.82 mg/L. Kata kunci: Faktor, Fisika, Kimia, Sungai Lok Ulo