Pola Distribusi Pertumbuhan dan Reprodusi Ikan Butuh Keleng (Butis butis) di Sungai Belawan Kabupaten Deli Serdang Provinsi Sumatera Utara

Abstract

Research on the Distribution and Growth Patterns of the Need Keleng Fish (Butis butis) in the Belawan River, Deli Serdang Regency, North Sumatra Province. Conducted in November 2023-January 2024. The number of fish caught was 80, with a total length of observed fish of 100–267 mm. The distribution pattern of fish requiring male longans is grouped. The growth pattern of fish requiring male longans is negative allometric, and the growth pattern of fish requiring female longans is negative allometric. 01 so that the fish are classified as flat, and fish requiring female keleng have a condition factor value in the range of 0.48–1.89 and an average of 1.04 are classified as flat fish. Parameter estimation was carried out using the FISAT II (FAO-ICLARM inventory) program Assessment Tools. The results of the study show that the distribution pattern of fish that need keleng is in groups with an ID value > 1, The size of fish that need keleng when first caught (Lc) is 184.6 mm and for fish that need keleng, it is 179.8 mm