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The proportion of flatfish recruitment in the North Sea potentially affected by offshore windfarms
ICES Journal of Marine Science ( IF 3.3 ) Pub Date : 2019-04-10 , DOI: 10.1093/icesjms/fsz050
Léo Barbut 1, 2 , Berthe Vastenhoud 3 , Laurence Vigin 1 , Steven Degraer 1 , Filip A M Volckaert 2 , Geneviève Lacroix 1
Affiliation  

Understanding the influence of man-made infrastructures on fish population dynamics is an important issue for fisheries management. This is particularly the case because of the steady proliferation of offshore wind farms (OWFs). Several flatfish species are likely to be affected because areas with OWFs in place or planned for show a spatial overlap with their spawning grounds. This study focuses on six commercially important flatfish species in the North Sea: common sole (Solea solea), European plaice (Pleuronectes platessa), turbot (Scophthalmus maximus), brill (Scophtalmus rhombus), European flounder (Platichthys flesus), and common dab (Limanda limanda). We used a particle-tracking model (Larvae&Co) coupled to a 3D hydrodynamic model to assess the effects of spatial overlap of OWFs with the species’ spawning grounds on the larval fluxes to known nursery grounds. An important overlap between planned areas of OWFs and flatfish spawning grounds was detected, with a resulting proportion of settlers originating from those areas varying from 2% to 16%. Our study suggests that European plaice, common dab, and brill could be the most affected flatfish species, yet with some important local disparities across the North Sea. Consequently, the study represents a first step to quantify the potential impact of OWFs on flatfish settlement, and hence on their population dynamics.

中文翻译:

北海招募比目鱼的比例可能受到海上风电场的影响

了解人造基础设施对鱼类种群动态的影响是渔业管理的重要问题。由于离岸风电场(OWF)的稳定扩散,尤其如此。某些比目鱼物种可能会受到影响,因为已设置或计划使用OWF的区域与其产卵场在空间上重叠。这项研究的重点是北海的六种商业上重要的比目鱼:普通common(Solea solea),欧洲(Pleuronectes platesa),比目鱼(Scophthalmus maximus),石蒜(Scophtalmus rhombus),欧洲比目鱼(Platichthys flesus)和普通民用鱼(Limanda limanda)。我们使用3D流体动力学模型耦合的粒子跟踪模型(Larvae&Co)来评估OWF与物种产卵场的空间重叠对通向已知苗圃场的幼虫通量的影响。检测到OWF的计划区域与比目鱼产卵场之间存在重要的重叠,因此,来自这些区域的定居者所占比例从2%到16%不等。我们的研究表明,欧洲,普通dab和brill可能是受影响最严重的比目鱼物种,但在北海各地仍存在一些重要的地区差异。因此,这项研究代表了量化OWF对比目鱼定居及其潜在种群动态的潜在影响的第一步。
更新日期:2020-04-20
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