Predicting migratory paths of post-smolt Atlantic salmon (Salmo salar)

Moriarty, Pamela E.; Byron, Carrie J.; Pershing, Andrew J.; Stockwell, Jason D.; Xue, Huijie

doi:10.1007/s00227-016-2847-5

Cited by 16 publications

(11 citation statements)

References 55 publications

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“…This possibility should be explored in greater detail, as it can affect the results of attempts to model post‐smolt migration, which can have implications for how to best optimise mitigation efforts in salmon farms or marine spatial planning. The results from Moriarty, Byron, Pershing, Stockwell and Xue (), which coupled an individual‐based model to a hydrodynamic model to model the post‐smolt migration in the Gulf of Maine, hold great promise.…”

Section: Discussionmentioning

confidence: 99%

Release during night enhances survival of wild Atlantic salmon smolts

Vollset

Barlaup

Normann

2017

Fisheries Management Eco

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The effect of nocturnal and diurnal releases on survival and migration of wild and hatchery‐reared Atlantic salmon, Salmo salar, L., smolts (n = 82) was investigated by releasing acoustically tagged smolts at the lower end of the River Vosso, Norway. Hatchery smolts was registered in the estuary within hours of their release, whereas wild smolts migrated over a prolonged period. The time of estuary exit was affected by river discharge but not by time of release. Progression rates were slow through the estuary (0.25 BL/s ± 0.18 SD) and fast through the fjord (1.80 BL/s ± 0.69 SD), and they were not affected by the time of release or origin. Survival to the fjord was low (0%–15%). Survival was not affected by body length but was lower for wild smolts than for hatchery smolts, and survival of the former was lower when the fish were released in daylight.

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Section: Discussionmentioning

confidence: 99%

Release during night enhances survival of wild Atlantic salmon smolts

Vollset

Barlaup

Normann

2017

Fisheries Management Eco

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“…Directed swimming toward some landmark was often the most successful migratory strategy in past dispersal modelling studies of Atlantic salmon post-smolts Moriarty et al 2016;Ounsely et al 2020;Newton et al 2021; Table 1). However, most previous studies have also tested some form of negative rheotaxis and concluded that this behaviour 7 resulted in reasonable dispersal estimates.…”

Section: Introductionmentioning

confidence: 99%

Modelling the effects of currents and migratory behaviours on the dispersal of Atlantic salmon (Salmo salar) post-smolts in a coastal embayment

Quinn

Trudel

Wilson

et al. 2022

Can. J. Fish. Aquat. Sci.

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The post-smolt phase is considered a critical period for Atlantic salmon (Salmo salar). Hence, identifying migration routes used by post-smolts is needed to protect the habitats they require to successfully complete their life cycle. We used a bio-physical model coupled with output from a water circulation model (FVCOM) to simulate dispersal of Atlantic salmon post-smolts in a semi-enclosed bay: Passamaquoddy Bay, New Brunswick, Canada. The model was run with nine post-smolt behaviours and six swimming speeds, and then tested against acoustic telemetry data. While no modelled behaviour entirely captured observed salmon migration routes, we identified some behaviours that could allow salmon to successfully leave the bay and resulted in predictions that matched observations reasonably well (e.g., swimming southwest, negative or tide-varying rheotaxis). We could also rule out several behaviours as unlikely to be used by Atlantic salmon post-smolts in this area (e.g., passive dispersal, orienting based on salinity or temperature, positive rheotaxis). Hence, with suitable behaviours and models, this approach can provide estimates of the essential habitats and migration routes of wild post-smolts.

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“…The GoME is a broad shallow sea along the US northeast coast extending from Cape Cod, US to Cape Sable, Canada. It is an important fishing ground due to its high biological productivity, especially around Georges Bank where the annual primary production can exceed 400 g[C] · m −2 yr −1 (Incze et al., 2010; Moriarty et al., 2016; Reilly et al., 1987). As an important driver for the GoME, the spatiotemporal variability of the upstream SS water is the focus of this study.…”

Section: Introductionmentioning

confidence: 99%

Freshwater Transport in the Scotian Shelf and Its Impacts on the Gulf of Maine Salinity

Wang

Xue

et al. 2022

JGR Oceans

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One general feature along the New England coast and continental shelf is that cold water on the Scotian Shelf (SS) moves southwestward, passing the Gulf of Maine (GoME) region before making its way to the downstream Mid-Atlantic Bight (Bisagni et al., 1996;Townsend et al., 2015). The GoME is a broad shallow sea along the US northeast coast extending from Cape Cod, US to Cape Sable, Canada. It is an important fishing ground due to its high biological productivity, especially around Georges Bank where the annual primary production can exceed 400 g[C]•m −2 yr −1 (Incze et al., 2010;Moriarty et al., 2016;Reilly et al., 1987). As an important driver for the GoME, the spatiotemporal variability of the upstream SS water is the focus of this study. Aspects of SS water impacts on GoME hydrodynamics will be further explored in a companion article (Li et al., 2021).The GoME is a strong tidally impacted region dominated by the semidiurnal M2 constituent (Greenberg, 1979;Xue et al., 2000). It is characterized by heterogeneous bathymetry and three separate deep basins (Georges, Jordan, and Wilkinson) that have depths larger than 200 m (Townsend et al., 2006). The GoME is semi-enclosed, and its exchange with the open Atlantic Ocean is largely restricted by Georges Bank and Browns Bank (BB). Slope water inflow to the GoME is through the narrow Northeast Channel between these two banks (Ramp et al., 1985), while the shallower Great South Channel located to the west of Georges Bank is a major exit of waters in the

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Predicting migratory paths of post-smolt Atlantic salmon (Salmo salar)

Cited by 16 publications

References 55 publications

Release during night enhances survival of wild Atlantic salmon smolts

Release during night enhances survival of wild Atlantic salmon smolts

Modelling the effects of currents and migratory behaviours on the dispersal of Atlantic salmon (Salmo salar) post-smolts in a coastal embayment

Freshwater Transport in the Scotian Shelf and Its Impacts on the Gulf of Maine Salinity

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