The slipper lobster Scyllarus arctus is an important fishery resource in Galicia (NW Iberian Peninsula), with a large reduction of its populations in recent decades in the North-east Atlantic and Mediterranean, but only limited information on its reproduction. This study provides an analysis of the reproductive potential of this scyllarid during two breeding cycles (2008 and 2009) in the NE Atlantic (43°20′N 8°50′W). We studied several reproductive traits (fecundity, brood weight, egg weight and volume) in broods with eggs both in an early and late embryonic stage, in relation to female size and temporal variations. Total output (fecundity and weight) and egg weight were closely linked to maternal size, and this relationship remained in broods with late-stage eggs. In relation to temporal variations, our data revealed an important seasonal variability in fecundity and egg weight, showing an inverse pattern in the reproductive strategy in the first two seasons of the reproductive period, with a maximum egg weight in winter (December–February) and a maximum number of eggs produced in spring (April–May). A predictive model for realized fecundity was developed: log (FE) = 0.064 + 2.907 log (length)−0.018 Month2 + 0.174 Month, which accounted for over 90% of variation in the total data.

中文翻译：

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不同环境条件下的繁殖策略：滑龙虾Scyllarus arctus的总产量与每个卵的投资

拖鞋龙虾青蟹是加利西亚（伊比利亚半岛西北部）的重要渔业资源，近几十年来东北大西洋和地中海的种群数量大幅减少，但有关其繁殖的信息有限。本研究分析了在大西洋东北部（43°20'N 8°50'W）的两个繁殖周期（2008 年和 2009 年）期间，这种蝉的繁殖潜力。我们研究了与雌性大小和时间变化有关的胚胎早期和晚期有卵子的几个生殖特征（繁殖力、育雏重量、卵重和体积）。总产量（繁殖力和重量）和蛋重与母体大小密切相关，并且这种关系在具有后期蛋的育雏中仍然存在。关于时间变化，我们的数据揭示了繁殖力和蛋重的重要季节性变化，在繁殖期的前两个季节，繁殖策略显示出相反的模式，冬季（12 月至 2 月）产蛋量最大，春季（4 月至 5 月）产蛋量最大。开发了已实现繁殖力的预测模型：log (FE) = 0.064 + 2.907 log (length)−0.018 月2+ 0.174 个月，占总数据变化的 90% 以上。