Short communication: First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), in the Brantas River, Sidoarjo, East Java, Indonesia

Mohamad Fadjar (Departement of Aquaculture, Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran Malang No. 16, Malang City 65145, East Java, Indonesia)
R Adharyan Islamy (Departement of Aquaculture, Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran Malang No. 16, Malang City 65145, East Java, Indonesia)
Endang Yuli Herawati (Departemen of Water Resources Management, Fisheries and Marine Science, Universitas Brawijaya. Jl. Veteran Malang No. 16, Malang City 65145, East Java, Indonesia)

Biodiversitas Journal of Biological Diversity
Vol. 20 No. 12 (2019)

Abstract. Fadjar M, Islamy RA, Herawati EY. 2019. Short communication: First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), in the Brantas River, Sidoarjo, East Java, Indonesia. Biodiversitas 20: 3527-3531. The arapaima (= Arapaima gigas) is the largest freshwater fish in the Neotropical region, obligate air-breathing fish that known to reach up to 3 m - 3.90 m in length and 200 kg in weight endemic to the Amazon basin. Arapaima gigas is giant osteoglossomorph and obligate air?breathing fish and also a native species of the Amazon basin. We present the first record of Arapaima gigas (Schinz, 1822) in Brantas River, Sidoarjo, East Java, Indonesia with diagnostic meristic and morphometrics of the specimens analyzed following Stewart method. Herein, it recorded from the Brantas River basin. This record based on the finding of one live specimen on the tributary of Brantas River basin, and in situ observation of juveniles and adults in the river).