Pola Pertumbuhan dan Faktor Kondisi Ikan Kakap Putih (Lates calcarifer Bloch, 1790) di Sungai Belawan Kabupaten Deli Serdang Provinsi Sumatera Utara

Abstract

The research of the growth patterns and the conditions of the White Snapper (Lates calcarifer Bloch, 1790) in Belawan River, Deli Serdang Regency,North Sumatra Province had been carried out from December 2022 to February 2023. The purpose of this study was to analyze the growth patterns and condition factors of white snapper and to analyze the density relationship of white snapper in the Belawan River. The sampling locations method done by using the "Purposive Sampling" based on the regional places, i.e the industrial areas, the estuaries and the residential areas. The results obtained showed that the growth pattern of white snapper was allometric negative and the value of the white snapper condition factor ranged from 1,006191- 1.021865 stating that the body of the fish was classified as less plump. The density of white snapper (Lates carcarifer) at station 2 was 0.062 and the lowest was at station 1(0.016). Based on the value of correlation, it found a very strong correlation between the density of white snapper (Lates carcarifer) to DO, pH,and Phosphate.