Mactra stultorum is one of the most abundant bivalve species along the Tunisian coast. Its current exploitation status represents a major concern for the fishing industry in Tunisia. This study investigates the stock distribution, population structure and some environmental parameters associated with M. stultorum. The obtained results reveal that this bivalve had significant density variation in the study area. The stock density ranged from 0 to 30 ind m⁻², and biomass values varied from 0 to 206 g m⁻². A remarkable biomass of 71.7 ± 23.5 tons and high abundance reaching 11.7 ± 3.9 million individuals was estimated in area of 4182 ha. The individuals ranged in size from 6 to 38.5 mm. The overall sex ratio (F:M) was 1:1.37, which significantly deviated from parity (1:1). It was noticed that several abiotic parameters (seawater temperature and salinity as well as sediment type and organic matter content) affected considerably the spread of the clam species. If managed properly, the clam is expected to meet the domestic market demand through artisanal fishery.

Mactra stultorum是突尼斯海岸最丰富的双壳类物种之一。它目前的开发状况是突尼斯渔业的一个主要问题。本研究调查了与M. stultorum相关的种群分布、种群结构和一些环境参数。获得的结果表明，这种双壳类动物在研究区具有显着的密度变化。种群密度范围为 0 至 30 ind m ^-2，生物量值范围为 0 至 206 g m ^-2. 在 4182 公顷的面积中，估计有 71.7±23.5 吨的显着生物量和高达 11.7±390 万个体的高丰度。这些个体的大小从 6 到 38.5 毫米不等。总体性别比（F:M）为1:1.37，显着偏离胎次（1:1）。注意到几个非生物参数（海水温度和盐度以及沉积物类型和有机物含量）对蛤类物种的传播有很大影响。如果管理得当，蛤蜊有望通过手工渔业满足国内市场需求。