Estuarine, Coastal and Shelf Science ( IF 2.6 ) Pub Date : 2020-03-18 , DOI: 10.1016/j.ecss.2020.106716 Berit Rabe , Alejandro Gallego , Judith Wolf , Rory O'Hara Murray , Caroline Stuiver , Darren Price , Hakeem Johnson
Due to the importance of parasite and disease controls for animal welfare, environmental sustainability and the economic viability of the finfish aquaculture industry in coastal waters, spatial management measures need to take into account the degree of connectivity between management areas. This paper describes the model integration (one-way nesting) of local high-resolution and wider domain hydrodynamic models around Scotland and the combination of their outputs to force a bio-physical modelling application to support marine spatial management. We used climatological flow fields from a hydrodynamic modelling framework (the “Scottish Shelf Model”) to estimate the degree of connectivity between Scottish finfish aquaculture Farm Management Areas (FMA) using bio-physical simulations of virtual organisms representing the planktonic phase of parasitic sea lice, an important problem for the aquaculture industry. Three types of analysis are carried out: presence/absence of connections between FMAs as the most extreme case, connection probabilities above a defined biologically-meaningful threshold, and above-threshold connection probabilities with a weighting associated with farmed fish within-area biomass (as a proxy for sea lice production) as a more realistic scenario. We find a general northward flow of particles from mainland farms aligned with the prevailing circulation and high connection probability towards the north. Some regions (Loch Linnhe/Sound of Mull) can be classified as net exporters and some (east coast of the Western Isles, the north-west coast) as net receivers of particles. A few selected regions show far reaching connections above the biologically-meaningful probability threshold, for example across the Minch between the Scottish mainland and the Western Isles. Other areas such as Shetland appear to be self-contained and internally well inter-connected. Our results are relevant to the marine aquaculture industry and regulators as they can provide useful information that can be used to develop effective strategies for parasite control.
中文翻译:
在地方到区域范围内的应用连通性模型:苏格兰有鳍鱼类水产养殖管理区之间海虱传播的潜力
由于寄生虫和疾病控制对于动物福利,环境可持续性以及沿海水生鱼类养殖业的经济生存能力的重要性,因此空间管理措施需要考虑到管理区域之间的连通程度。本文介绍了苏格兰附近的局部高分辨率和宽域水动力模型的模型集成(单向嵌套)及其输出的组合,以迫使生物物理建模应用程序支持海洋空间管理。我们使用水动力模型框架(“苏格兰货架模型”)中的气候流场,使用代表寄生海虱浮游期的虚拟生物的生物物理模拟,估算苏格兰有鳍水产养殖场管理区(FMA)之间的连通度。 ,这是水产养殖业的一个重要问题。进行了三种类型的分析:最极端的情况是FMA之间是否存在连接,超过定义的具有生物学意义的阈值的连接概率以及阈值以上的连接概率以及与区域内生物量内养殖鱼类相关的权重(如作为海虱生产的代理)。我们发现,来自大陆农场的颗粒总体向北流动,这与盛行的环流和向北的高连接概率一致。某些地区(Loch Linnhe /穆尔之声)可被分类为净出口国,而某些地区(西岛的东海岸,西北海岸)可被视为颗粒物的净接收者。一些选定的区域显示出超出具有生物学意义的概率阈值的深远联系,例如跨越苏格兰大陆和西岛之间的明奇。设得兰群岛(Shetland)等其他地区似乎是独立的,并且内部相互联系良好。我们的结果与海水养殖业和监管机构有关,因为它们可以提供有用的信息,这些信息可用于制定有效的寄生虫控制策略。某些地区(Loch Linnhe /穆尔之声)可被分类为净出口国,而某些地区(西岛的东海岸,西北海岸)可被视为颗粒物的净接收者。一些选定的区域显示出超出具有生物学意义的概率阈值的深远联系,例如跨苏格兰大陆和西岛之间的明奇。设得兰群岛(Shetland)等其他地区似乎是独立的,并且内部相互联系良好。我们的结果与海水养殖业和监管机构有关,因为它们可以提供有用的信息,这些信息可用于制定有效的寄生虫控制策略。某些地区(Loch Linnhe /穆尔之声)可被分类为净出口国,而某些地区(西岛的东海岸,西北海岸)可被视为颗粒物的净接收者。一些选定的区域显示出超出具有生物学意义的概率阈值的深远联系,例如跨越苏格兰大陆和西岛之间的明奇。设得兰群岛(Shetland)等其他地区似乎是独立的,并且内部相互联系良好。我们的结果与海水养殖业和监管机构有关,因为它们可以提供有用的信息,这些信息可用于制定有效的寄生虫控制策略。一些选定的区域显示出超出具有生物学意义的概率阈值的深远联系,例如跨越苏格兰大陆和西岛之间的明奇。设得兰群岛(Shetland)等其他地区似乎是独立的,并且内部相互联系良好。我们的结果与海水养殖业和监管机构有关,因为它们可以提供有用的信息,这些信息可用于制定有效的寄生虫控制策略。一些选定的区域显示出超出具有生物学意义的概率阈值的深远联系,例如跨苏格兰大陆和西岛之间的明奇。设得兰群岛(Shetland)等其他地区似乎是独立的,并且内部相互联系良好。我们的结果与海水养殖业和监管机构有关,因为它们可以提供有用的信息,这些信息可用于制定有效的寄生虫控制策略。