Ichtyofauna at Cikawung River Cilacap Regency and it's longitudinal-.
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ICIITYOFATINA AT CIKAWUNG RIYER CILACAP REGENCY
AND IT'S LONGITTJI}INAL DISTRIBUTION
AGUS NURYANTO, DIAN BHAGAWATI, M. NADJMI ABULIAS,
ANd
INDARMAWAN
Faculty of Biolog,t Jenderal Soedirman University, Purwolcerto 53122
Dr. Suparno StreetNo.63 Purwokerto 53122
Tel: +62 (0) 281 638794
Fax; +62 (0) 281 631700
e-mail : anuryanto2OO3 @Yahoo. com
ABSTRACT
Cikawung River is a second ordo river in Citanduy Watershed. The river is located in
Western part of Cilacap Regency, Central Java. Like other rivers in the world, Cikawung
Rriver runs tlrough various ecisystem e.g. Pinus mercusii and Tectona grandis forests,
cultivation and settlement areas. Therefore it is predicted that physic-chemical of the river
has change from the upperstream to the downstream and suggested to cause that diverse
of
fish species living in it. The objective of this study was to obtain data on fish species that
inhabit Cikawung River and its longitudinal distribution along the river. A survey method
and cluster random sampling technique was performed according to upper, middle, and
lower parts of the river. The observed variables were the number of species and its
distribution. During the survey a total number of 499 fish individuals were collected.
Identification placed the samples into 19 species and 9 families. Among nine families,
Cyprinidae had the highest number of species with eight species and followed by Bagridae
with three species. The most abundance species was Mystus gulio and followed by
Osteochilus vittatus. High number of species and families proved that the Cileumeuh River
has high fish diversity. The result also proved that complex pattern
of
longitudinal
distribution was observed. This different distribution pattem among species could be due
the different physic-chemical characters from upper to lower parts of the river, especially
on its substrates, water velocities, dossolved oxigene, and water accidity
bio.unsoed.ac.id
Keywords: Cileumeuh River, diversity, fishes, water quahty
(p$.
ICIITYOFATINA AT CIKAWUNG RIYER CILACAP REGENCY
AND IT'S LONGITTJI}INAL DISTRIBUTION
AGUS NURYANTO, DIAN BHAGAWATI, M. NADJMI ABULIAS,
ANd
INDARMAWAN
Faculty of Biolog,t Jenderal Soedirman University, Purwolcerto 53122
Dr. Suparno StreetNo.63 Purwokerto 53122
Tel: +62 (0) 281 638794
Fax; +62 (0) 281 631700
e-mail : anuryanto2OO3 @Yahoo. com
ABSTRACT
Cikawung River is a second ordo river in Citanduy Watershed. The river is located in
Western part of Cilacap Regency, Central Java. Like other rivers in the world, Cikawung
Rriver runs tlrough various ecisystem e.g. Pinus mercusii and Tectona grandis forests,
cultivation and settlement areas. Therefore it is predicted that physic-chemical of the river
has change from the upperstream to the downstream and suggested to cause that diverse
of
fish species living in it. The objective of this study was to obtain data on fish species that
inhabit Cikawung River and its longitudinal distribution along the river. A survey method
and cluster random sampling technique was performed according to upper, middle, and
lower parts of the river. The observed variables were the number of species and its
distribution. During the survey a total number of 499 fish individuals were collected.
Identification placed the samples into 19 species and 9 families. Among nine families,
Cyprinidae had the highest number of species with eight species and followed by Bagridae
with three species. The most abundance species was Mystus gulio and followed by
Osteochilus vittatus. High number of species and families proved that the Cileumeuh River
has high fish diversity. The result also proved that complex pattern
of
longitudinal
distribution was observed. This different distribution pattem among species could be due
the different physic-chemical characters from upper to lower parts of the river, especially
on its substrates, water velocities, dossolved oxigene, and water accidity
bio.unsoed.ac.id
Keywords: Cileumeuh River, diversity, fishes, water quahty
(p$.