Sebaran Ukuran, Hubungan Panjang-Berat, dan Faktor Kondisi Ikan Julung-Julung (Nomorhamphus sp.) di Air Terjun Nanga-nanga Kota Kendari, Sulawesi Tenggara

Abstract

Halfbeak fish (Nomorhamphus sp.) is a type of the Zenarchopteridae family. It was observed around the Nanga-nanga waterfall, Kendari City, with a small population. This study was aimed to examine the size distribution, length-weight relationship, and condition factors at Nanga-nanga waterfall. The fish were caught using nets, separated by sex, then measured their length using ruler with an accuracy of 0.1 cm and weighed using a digital scale with an accuracy of 0.01 gram. The results showed that the highest size distribution of all fish collected was in the 4.2-6.5 cm size class, while the highest size for male and female were 5.76-6.12 and 4.25-6.5 cm size class, respectively. The relationship between fish length and weight was found showed that they have a positive allometric growth pattern (b>3). Condition factor values obtained for male, female, and both were 0.9945±0.0809, 1.0171±0.0862, and 0.9907±0.0807, respectively. Both size and condition factors, female have better conditions. Further investigation of this fish existence is needed to determine its management plan.