STUDI MORFOMETRIK, MERISTIK, DAN POLA PERTUMBUHAN IKAN BELIDA (Notopterus notopterus Pallas, 1769) DI SUNGAI SAIL KOTA PEKANBARU PROVINSI RIAU

Abstract

Featherback fish (Notopterus notopterus) is a type of freshwater fish that inhabit the
Sail River. This fish has high economic value, the price is more than Rp 60.000/kg.
Information on biological aspects of this fish, including morphometric, meristic, and
growth patterns is rare. To understand the those characteristics, a research had been
conducted from March-April 2017. There were 100 fishes (116-299 mm TL and 8.6-234
gr BW) captured from the river. There were 23 morphological characteristics measured
and 8 meristical characteristics counted. The meristical characteristics were as follows:
D.6-7, P.11-14, V.1, A.99-111, the number of scale in the pre-dorsal fin was 102-103,
around the body was 126-136, in the caudal peduncle was 12-14, and in the lateral line
was 150-168. The length-weight relationship shown that the growth of male and female
was positive allometric (b= 3.363). The water quality parameters shown that
temperature 28-30°C, transparency 5.50-14.83 cm, pH 5-6, DO 2-3.8 mg/L, CO2 11.9-
21.9 mg/L and depth 0.7-1.8 m. Data on water quality in the Sail River is able to
support the life of the N. notopterus.
Keywords: Notopterus notopterus, Sail River, morphometric, meristic, growth patterns