Atlantic sea scallops support one of the most valuable fisheries in the eastern United States. The scallop population is susceptible to climate-related environmental stress. Assessing and projecting climate impacts rely on the fundamental understanding of scallop ecophysiology, including the influences of temperature and food supply on its energy balance and growth potential. In this study, we developed a scope for growth (SFG) model driven by high-resolution hydrodynamic and biological models to assess the spatial and seasonal variability of scallop energy dynamics. The overall SFG on the Northeast U.S. Shelf is higher in May–June and lower in January–February, with substantial spatial heterogeneity. In the Mid-Atlantic Bight (MAB), negative SFG occurs from July to October due to strong thermal stress. Particulate organic matter in detrital form is an important food source for scallops, with higher/lower contribution in the cold/warm seasons, respectively. Warming and food deficiency induce a noticeable contraction of suitable scallop habitats in the MAB, while their impacts on Georges Bank are insignificant. Known seasonal spawning patterns and observed growth rates in these regions match the patterns of SFG generated by the model. The sensitivity of SFG to the variations in food and temperature increases with scallop size. Large scallops are more likely to experience low or negative SFGs than smaller ones, implying that the habitats shrink as scallops grow older/bigger. This study provides key information about scallop growth potential and biogeography from the perspective of energy balance, thus helping the development of adaptive fisheries management strategies.

中文翻译：

---

模拟大西洋扇贝 (Placopecten magellanicus) 在美国东北部大陆架上的生长范围

大西洋扇贝支持美国东部最有价值的渔业之一。扇贝种群易受气候相关环境压力的影响。评估和预测气候影响依赖于对扇贝生态生理学的基本理解，包括温度和食物供应对其能量平衡和生长潜力的影响。在这项研究中，我们开发了一个由高分辨率水动力和生物模型驱动的生长范围 (SFG) 模型，以评估扇贝能量动力学的空间和季节变化。美国东北部大陆架的整体SFG在5-6月较高，1-2月较低，空间异质性较大。在中大西洋湾 (MAB)，由于强烈的热应力，负 SFG 从 7 月到 10 月出现。碎屑形式的颗粒有机物是扇贝的重要食物来源，在冷季/暖季的贡献率分别较高或较低。变暖和食物缺乏导致 MAB 中合适的扇贝栖息地明显收缩，而它们对乔治银行的影响微不足道。这些地区已知的季节性产卵模式和观察到的增长率与模型生成的 SFG 模式相匹配。SFG 对食物和温度变化的敏感性随着扇贝大小的增加而增加。与较小的扇贝相比，大扇贝更有可能经历低或负的 SFG，这意味着随着扇贝变老/变大，栖息地会缩小。本研究从能量平衡的角度提供了有关扇贝生长潜力和生物地理学的关键信息，