Iktiofauna di Kawasan Karst Menoreh, Jawa Tengah dan Upaya Konservasinya

Ichthyofauna study has been conducted at 11 freshwater ecosystems, consisted of three caves and eight rivers of Me-noreh Karst area. Nine fish species were collected during the study, i.e Barbodes binotatus, Kalimantania lawak, Ras-bora lateristriata, Nemacheilus fasciatus, Poecilia reticulata, Sicyopterus hageni, Stiphodon atratus, Sicyopus rubicun-dus and Channa gachua. For 30 years work as freshwater fish researcher, it’s the first time to collect Kalimantania lawak, the distribution of this fish only in Kalimantan and Java. Scale structures is a key character for identification of cyprinid, the differences of scale structures of K. lawak, B. binotatus dan Barbonymus gonionotus provided. The bio-diversity conservation efforts has been attempted in Desa Kaligono, Kecamatan Kaligesing, Kabupaten Purworejo. The village regulations has been established, the peoples are forbidden to collect fish using electricfihing or the poison/ che-micals. In fact, it succeeded by the existing of aquatic biota in the rivers, the number of fish and species from those rivers are highest than the others area. Key words: Ichthyofauna, Menoreh, Kalimantania lawak, scale structures Jurnal Iktiologi Indonesia 16(2): 199-210