The peppery furrow shell is a commercial valuable bivalve in the east Atlantic and Mediterranean Sea. To ensure the sustainability of this resource and implement efficient management strategies, it is essential to understand the life history traits of the species, such as growth, reproduction, and size at first maturity. These features were investigated in the southern range of the species' European distribution, specifically in Ria de Aveiro (Portugal), and compared to other geographical areas. At Ria de Aveiro spawns from June to October, with a peak in August/September, aligning with the typical reproductive pattern of mid latitude European populations. The condition index is lowest in March and highest in May just before spawning. Sexual maturity (50 = 27 mm SL) is attained at approximately 1 year of age, enabling offspring to reproduce in the subsequent spawning season. In this study, the overall sex ratio did not differ significantly from 1:1. Hermaphroditism (ovotestis) was detected in one specimen, representing 0.3% of the total examined males. Shell rings are formed annually during growth cessation in fall/winter and become conspicuous when growth resumes in March. The growth equation parameters, estimated from surface shell ring analysis and internal shell microgrowth bands, were: = 58.1[1 - e]; = 54.7[1 - e], respectively. Values for and are among the highest recorded for the species, highlighting the growth performance of in the Ria de Aveiro and its potential for commercial exploitation. An analysis of morphometric relationships between shell length, height, and width was performed to optimize the harvesting process of . Management measures are proposed for the fishery of in Ria de Aveiro, based on the species' biological traits.

中文翻译：

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葡萄牙阿维罗河口的胡椒沟贝 Scrobillary plana 的生长、繁殖和初成熟时的大小：对可持续渔业管理的影响

胡椒沟贝是东大西洋和地中海具有商业价值的双壳类动物。为了确保这种资源的可持续性并实施有效的管理策略，有必要了解该物种的生活史特征，例如生长、繁殖和首次成熟时的大小。这些特征在该物种欧洲分布的南部范围进行了调查，特别是在阿威罗河口（葡萄牙），并与其他地理区域进行了比较。在阿维罗河口，产卵期为六月至十月，高峰期为八月/九月，这与中纬度欧洲种群的典型繁殖模式一致。状况指数在三月最低，在产卵前的五月最高。大约一岁时性成熟（50 = 27 mm SL），使后代能够在随后的产卵季节繁殖。在本研究中，总体性别比与 1:1 没有显着差异。在 1 个样本中检测到雌雄同体（卵睾），占受检男性总数的 0.3%。每年秋季/冬季生长停止期间都会形成贝壳环，并在三月恢复生长时变得明显。根据表面壳环分析和内壳微生长带估计的生长方程参数为： = 58.1[1 - e]； = 54.7[1 - e] 分别。的价值 和 是该物种有记录的最高值之​​一，凸显了阿威罗河口的生长表现及其商业开发的潜力。对贝壳长度、高度和宽度之间的形态关系进行分析，以优化贝壳的收获过程。根据该物种的生物特征，提出了阿威罗河口渔业的管理措施。