Biometric Assessment of the Growth Condition of Asian-moon Scallop (Amusium pleuronectes Linnaeus, 1758) from the Waters of Makassar Strait, Indonesia

Abstract

Asian-moon scallop are a commodity with high economic value and are widely used by coastal communities. Intensive use is thought to have caused changes in the population of this shellfish in nature. This study aims to analyze biometric characteristics to obtain information on growth patterns, condition factors, and condition indices of Asian-moon scallop (Amusium pleuronectes) in the waters of the Makassar Strait, Indonesia. The study was conducted using a survey approach with a purposive sampling method for collecting shellfish samples. Samples were taken at three stations with 15 samples per station, resulting in a total of 45 Asian-moon scallop samples. The results of the study showed that the biometric characteristics of the Asian-moon scallop found had a negative allometric growth pattern, shell length ranging from 50.0-72.5 mm (59.79 ± 5.72 mm, total weight ranging from 7.0-22.9 g (14.96 ± 3.649 g), and meat weight ranging from 3.0-11 g (6.36 ± 2.069 g). The condition factor (CF) ranged from 4.73-9.21 (6.933 ± 0.918) and the condition index (CI) ranged from 27.27-57.14 (42.1850 ± 6.71652). Based on the negative allometric growth pattern and the comparison between the condition factor and the condition index, it is an indicator that there has been environmental pressure and anthropogenic activities on scallop resources.