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Conon 2017: Impact of impounded waterbodies on Atlantic salmon smolt migration Citation Orrell, D., Newton, M., Honkanen, H., Adams, C. (2017) Survival and movement behaviour of Atlantic salmon smolts (Salmo salar L.) migrating through impounded lakes and natural standing waters. https://marineinfo.org/id/dataset/5916 Contact: Newton, Matthew Availability: Unrestricted after moratorium period Data are initially restricted, but the access condition relaxes to academic or unrestricted once a specified period of time after an event (such as collection, publication, completion of QC procedures or project cessation) has elapsed Description Juvenile Atlantic salmon (Salmo salar L.) smolts were tracked through two lakes impounded by large hydropower dams, and one natural standing water located in the River Conon system. Eighty smolts were tagged with acoustic transmitters and were tracked for an eight-week period from May to June 2017. High mortality rates were found between the river release location and the three lakes; Loch Garve (25% km-1), Loch Meig (28% km-1) and Loch Achonachie (10% km-1) which was likely the result of predation. Modelling showed that successful lake migration was lower if the lake was impounded, and if individuals were migrating earlier in the study period. Modelling found that successful migration (river release to estuary) was lower if the lake was impounded, and if fish were travelling in smaller release groups. Scope Themes: Biology > Fish, Fisheries > Fish stocks/catches/taggings Keywords: Marine/Coastal, Acoustic telemetry, Acoustic Telemetry, Atlantic salmon (Salmo salar), ANE, British Isles, Scotland, Pisces Geographical coverage ANE, British Isles, Scotland [Marine Regions] Temporal coverage 1 April 2016 - 1 July 2016 Quasi continuous (< 1 min.) Taxonomic coverage Pisces [WoRMS] Contributors University of Glasgow, more, data creator Related datasets Parent dataset: European Tracking Network (ETN) data, more Dataset status: In Progress Data type: Data Data origin: Research: field experiment Metadatarecord created: 2018-02-28 Information last updated: 2018-03-05 | ||||
