Using biophysical modelling and population genetics for conservation and management of an exploited species, Pecten maximus L.
Using biophysical modelling and population genetics for conservation and management of an exploited species,
Pecten maximus
L.
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利用生物物理模型和群体遗传学来保护和管理被利用的物种，Pecten maximus L.
DOI：
10.1111/fog.12556
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发表时间：
2021
影响因子：
2.6
通讯作者：
M. Kaiser
中科院分区：
文献类型：
--
作者：
Natalie Hold;P. Robins;Claire L. Szostek;G. Lambert;H. Lincoln;L. le Vay;E. Bell;M. Kaiser
在考虑保护或管理脆弱物种的开发时，种群之间的连通性很重要。我们调查了出现在离散地理位置的广播产卵海洋物种(扇贝，大扇贝)的种群是如何相互联系的。种群遗传洞察与利用扇贝幼体行为实施的三维水动力模型的输出有关，以了解海洋过程在多大程度上将这些地区联系在一起，以及这种联系如何因季节和两个平均温度记录(温暖和寒冷)截然不同的不同年份而改变，以提供不同的海洋条件。我们的结果涵盖了从区域到货架的范围。在区域层面(例如爱尔兰北部海)，连通性很高，但在站点之间100公里的尺度上连通性较低。一些地方可能是与世隔绝的，因此依靠自我招募来维持当地人口。产卵的季节性时间和海水温度的年际波动影响连通性模式，因此将影响空间补充。由于温度驱动的洋流的季节性加强，夏季而不是春季产卵增加了一些种群之间的连通性。此外，温暖的年份比寒冷的年份产生了更高水平的模拟连接。地磁方法和海洋学方法的结合为了解大陆架规模的结构和连通性提供了宝贵的见解。这一认识为确定保护管理单元和空间管理的适当尺度提供了有力的基础。温度的时间波动影响连通性的可变性，这表明未来的工作在调查人口弹性时应考虑海洋变暖的影响
Connectivity between populations is important when considering conservation or the management of exploitation of vulnerable species. We investigated how populations of a broadcast-spawning marine species (scallop, Pecten maximus ) that occur in discrete geographic locations were connected to each other. Population genetic insights were related to the outputs from a three-dimensional hydrodynamic model implemented with scallop larval behaviour to understand the extent to which these areas were linked by oceanographic processes and how this was altered by season and two contrasting years that had strongly different average temperature records (warm vs cold) to provide contrasting oceanographic conditions. Our results span from regional to shelf scale. Connectivity was high at a regional level (e.g. northern Irish Sea), but lower at scales >100 km between sites. Some localities were possibly isolated thus dependent on self-recruitment to sustain local populations. Seasonal timing of spawning and inter-annual fluctuations in seawater temperature influenced connectivity patterns, and hence will affect spatial recruitment. Summer rather than spring spawning increased connectivity among some populations, due to the seasonal strengthening of temperature-driven currents. Furthermore, the warm year resulted in higher levels of modelled connectivity than the cold year. The combination of ge-netic and oceanographic approaches provided valuable insights into the structure and connectivity at a continental shelf scale. This insight provides a powerful basis for defining conservation management units and the appropriate scale for spatial management. Temporal fluctuations in temperature impact upon variability in connectivity, suggesting that future work should account for ocean warming when investigating population resilience
高能陆架海中对幼虫扩散和连通性的物理和生物控制
影响因子：
4.5
作者：
Robins P
通讯作者：
Robins P
影响因子：
2.3
作者：
S. Neill;J. Scourse
通讯作者：
S. Neill;J. Scourse