The relationship between the length and weight of snail Nerita lineata Gmelin 1791 on environmental factors in the mangrove ecosystem

Nerita lineata snails are found in the mangrove ecosystem. This snail attaches to the roots of mangroves. This study aims to find the relationship between the length and weight of Nerita lineata’s snails to environmental factors. Sampling was carried out using four plots of 0.5m x 0.5m in a 10m x 10m plot. The research station is 3; station A with mangrove age ⩽10 years, station B with mangrove age ⩽20 years, and station C with mangrove age ⩽30 years. Data were analyzed by regression and t-independent test. The length of the snail that is dominant in the mangrove is 22.27 - 25.57 mm and the dominant weight is 4.93 - 6.09 gr. Salinity and pH of seawater significantly affected the length of N. lineata’s snail shell. Total organic matter significantly affected the weight of N. lineata snails. The average length and weight of N. lineata snails at each research station did not differ.