A comprehensive study of the tides around the Welsh coastal waters

Horrillo-Caraballo, Jose; Yin, Yunzhu; Fairley, Iain; Karunarathna, Harshinie; Masters, Ian; Reeve, Dominic E.

doi:10.1016/j.ecss.2021.107326

Cited by 16 publications

(7 citation statements)

References 60 publications

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“…In addition, R 2 correlation coefficient is provided for validation of α values at the tide gauge locations. The calibrated results are competitive with recent results in the literature [67]. An indicator of tidal conditions characterised by the validated numerical model is provided in Table 3.…”

Section: Model Calibration and Validationsupporting

confidence: 64%

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Assessing impacts of tidal power lagoons of a consistent design

et al. 2021

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Section: Model Calibration and Validationsupporting

confidence: 64%

“…Ambient tidal conditions along the west coast of Great Britain are well-established in the literature [25,67]. In Fig.…”

Section: Impact On Harmonic Tidal Constituentsmentioning

confidence: 63%

Assessing impacts of tidal power lagoons of a consistent design

et al. 2021

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“…Assuming first that mussel larvae are distributed throughout the water column, e.g., developing weak vertical migration and in the absence of stratification, then their dispersal would be primarily controlled by tidal currents and in particular tidal residuals pathways [ 58 ]. Tidal residuals do not change markedly from one month to another or between years [ 37 ]. Under this scenario, larvae from the Bangor and Brynsiencyn beds dispersed south-westwards through the Menai Strait, towards the Llyn Peninsula and into Cardigan Bay—in accordance with the tidal residuals [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

The role of wind in controlling the connectivity of blue mussels (Mytilus edulis L.) populations

et al. 2022

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Background Larval connectivity between distinct benthic populations is essential for their persistence. Although connectivity is difficult to measure in situ, it can be predicted via models that simulate biophysical interactions between larval behaviour and ocean currents. The blue mussel (Mytilus Edulis L.) is widespread throughout the northern hemisphere and extensively commercialised worldwide. In the Irish Sea, this industry represents ~ 50% of Welsh shellfisheries, where cultivation is mainly based on wild spat. However, the main sources and amount of spat varied interannually (1100 tonnes harvest in 2014 against zero in 2018). The aim of this study is to characterise the structure and dynamics of the blue mussel metapopulation within the northern part of the Irish Sea. Methods We develop a Lagrangian particle tracking model, driven by a high-resolution (from 30 to 5000 m) validated unstructured coastal hydrodynamic model of the Irish Sea, to simulate spatial and temporal variability of larval dispersal and connectivity between distinct mussel populations and potential settlement areas. Results Our results showed that: (1) larvae positioned near the surface were strongly influenced by wind-driven currents suggesting that connectivity networks had the potential to span hundreds of kilometres; (2) in contrast, larvae positioned deeper in the water column were driven by tidal currents, producing intricate spatial patterns of connectivity between mussel beds over tens of kilometres that were consistent over time. Conclusions Dispersal of mussel larvae in the tidally energetic Irish Sea during the April–May spawning season is potentially driven by wind-driven surface currents, as confirmed by fisherman observations of inter-annual variability in wild spat collection. These results have important implications for metapopulation dynamics within the context of climate change and sustainable shellfisheries management (i.e. gain and loss of populations and harvest areas according to wind conditions).

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“…The results imply that retention may be increased for larvae developing in low energy environments such as the area around the Celtic Sea population. By contrast, decreased retention is expected in highenergy environments such as around Anglesey and the Llyn Peninsula where strong tidal (up to 3 m/s) and residual (up to 0.1 m/s) currents are found (Horrillo-Caraballo et al, 2021). Our simulations provide insights into larval transport from the early spawning in April/May, and for the potential of trickle spawning throughout the summer.…”

Section: Discussionmentioning

confidence: 88%

Connectivity between populations of the scallop Pecten maximus in the Irish Sea and the implications for fisheries management

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Lambert,

Robins

et al. 2024

Front. Mar. Sci.

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Marine species with a pelagic larval phase have the potential to disperse hundreds of kilometres via ocean currents, thus connecting geographically distinct populations. Connectivity between populations therefore plays a central role in population dynamics, genetic diversity and resilience to exploitation or decline and can be an important vector in the management of fisheries. The scallop, Pecten maximus, is a valuable benthic bivalve with a variety of management measures at both regional and national scales. A bio-physical numerical model was developed to simulate and characterise the larval transport and population connectivity of scallops across commercial fishing grounds within the Irish and Celtic Seas. The model incorporated realistic oceanographic currents and known behavioural traits of P. maximus larvae including spawning times, pelagic larval duration, and vertical migration during the various developmental stages i.e., passive, active swimming, vertical migrations, since growth rates change with temperature, which varies spatially and temporally, it was used in the model to determine when an individual larva changed its behaviour. Simulations showed a high degree of connectivity between most populations, with multiple connections allowing for substantial exchanges of larvae. The exception was a population off North Cornwall that was entirely reliant on self-recruitment. A sensitivity analysis of the biological parameters suggested that ocean current patterns primarily controlled the connectivity network, but the strength of the connections was sensitive to spawning date and the specific features of diel vertical migrations. The model identified weakly connected populations that could be vulnerable to overfishing, and populations that are ‘strong connectors’ and a vital source of larvae to maintain the metapopulation. Our approach highlights the benefits of characterising population connectivity as part of an effective management strategy for sustainable fisheries.

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A comprehensive study of the tides around the Welsh coastal waters

Cited by 16 publications

References 60 publications

Assessing impacts of tidal power lagoons of a consistent design

Assessing impacts of tidal power lagoons of a consistent design

The role of wind in controlling the connectivity of blue mussels (Mytilus edulis L.) populations

Connectivity between populations of the scallop Pecten maximus in the Irish Sea and the implications for fisheries management

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