Kelimpahan dan Pola Pertumbuhan Kerang Darah (Anadara granosa) di Perairan Pantai Bunga Kabupaten Batu Bara Provinsi Sumatera Utara

Abstract

Blood clams (Anadara granosa) are marine biota in the bivalve class that mostly live at the bottom of muddy or sandy sea waters. The growth of blood clams can be observed by looking at the increase in shell size. This study aims to determine the population abundance of blood clams (A. granosa) at Bunga Beach, Batu Bara Regency, North Sumatra, the growth pattern of blood clams (A. granosa) at Bunga Beach, Batu Bara Regency, North Sumatra and the correlation of the main components on blood clams (A. granosa) at Bunga Beach, Batu Bara Regency, North Sumatra. Sampling was conducted from March to April 2024 with descriptive quantitative research using the belt transect method. Samples were then measured for length, width and height of the shell and total weight. Based on the results obtained that the abundance of blood clams (A. granosa) obtained at Bunga Beach is at station I is 58 ind/m2, at station II is 79 ind/m2, and at station III is 89 ind/m2, the growth pattern of blood clams (A. granosa) in the combination, males and females are negative allometric with a value of b < 3 and the results of the study obtained data showing that the main component analysis correlation graph shows that DO, salinity, nitrate and C-organic are strongly correlated, temperature and brightness are strongly correlated.