IKTIOFAUNA DI HILIR SUNGAI KLAWING KABUPATEN PURBALINGGA, JAWA TENGAH

The status and potential of ichtyofauna resources in freshwaters, especially downstream of the river, must be monitored and evaluated frequently. Land use along the downstream river is often used as mining and industrial activities. The purpose of this study was to find out ichtyofauna in down stream of the Klawing Purbalingga River in Central Java. The study was conducted in January-March 2017 with descriptive exploratory method. Sampling using gill nets with the help of local fishermen. The fish obtained were identified and grouped by family to the species level. The results showed that in the down stream of the Klawing River there were species diversity consisting of 13 species, 7 families and 13 genera. Ichtyofauna from Cyprinidae family dominate as many as 6 species followed by Bagridae family 2 species. One introduced species of Osphronemus gouramy and one invasive alien fish species Hypostomus plecostomus and other species were indigenous species.Status dan potensi sumberdaya iktiofauna perairan air tawar utamanya bagian hilir sungai harus sering dimonitoring dan dievaluasi.Tata guna lahan sepanjang hilir sungai seringkali dijadikan kegiatan pertambangan dan industri.  Tujuan penelitian ini untuk mengetahuisumberdaya ikan  di bagian hilir Sungai Klawing Purbalingga Jawa Tengah. Penelitian dilakukan pada bulan Januari-Maret 2017 dengan metode deskriptif eksploratif.Pengambilan sampel menggunakan jaring insang dengan bantuan nelayan setempat.Ikan yang diperoleh diidentifikasi dan dikelompokan berdasarkan famili hingga tingkat spesies. Hasil penelitian menunjukkan di hilir Sungai Klawing terdapat keanekaragaman spesies terdiri dari 13 spesies, 7  famili dan 13 genera.  Iktiofauna dari famili Cyprinidaemendominasi sebanyak 6 spesies diikuti famili Bagridae 2 spesies.Ditemukan satu spesies introduksi Osphronemus gouramy dan satu spesies ikan asing invasif Hypostomus plecostomus dan spesies lainnya merupakan spesies ikan asli