Pola Pertumbuhan Kerang Darah (Anadara granosa) di Pantai Sejarah Kabupaten Batubara

Abstract

Blood clams are one type of shellfish group that has high economic value. Its existence on the historical coast of Batubara Regency has long been used by the community to sell or use in daily life. This study aims to analyze the distribution of abundance, the relationship between length and weight, size distribution, growth patterns, and condition factors of turtle doves (Anadara granosa) caught in the historical coastal waters of Batubara Regency in August. Samples were taken using the purposive sampling method. Sampling was taken by forming a plot/quadrant from a 1m x 1m paralon pipe which was carried out horizontally. The third station in the research represents different characteristics at each research location. The research location, the average coverage obtained based on the research results, was at station I approximately 38 ind/m2, at station II approximately 51 ind/m2, and station III approximately 31 ind/m2. The size distribution is dominated by sizes 32 – 33 mm. The results of the analysis of the relationship between length and weight of the blood clams (Anadara granosa) have a b value of 2.72 and are classified as positive allometric (b>2.50). The condition factor for the turtle dove on Historic Beach has an average value of 1, indicating that the environmental conditions are good enough for the survival of the blood clams (Anadara granosa).