Sediment fraction analysis and population density of living larger foraminifera in the Persian Gulf (Table 1A, 1B)

Living Heterostegina depressa were found in the Persian Gulf on shallows and sides of islands in the Central Basin. Preliminary culture experiments furnished information on life span, salinity tolerances and population density of species. Reproduction processes (probably asexual) could be observed several times. A possible carbonate production of ca. 150 g/year/m**2 has been estimated.

活体压扁异列虫（Heterostegina depressa）发现于波斯湾中央盆地的浅水区及岛屿岸坡。初步培养实验获取了该物种的寿命、盐度耐受范围及种群密度相关数据。研究多次观测到其繁殖过程（推测为无性繁殖）。据估算，该物种的碳酸盐产率约为150克/(年·平方米)。