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New paper out in early view today @cjfas! We used otoliths and genetic stock ID to quantify the entry timing, residency, and early marine growth of juvenile Harrison Chinook salmon in the Fraser River estuary (a thread - 1/5) #FraserSalmon #estuary #habitat #otoliths #SSMSP
Most juv. Harrison Chinook spent 1-2 months (mean 42 days) in the Fraser estuary during this important early marine period. They started in the brackish marsh at small sizes and moved outward to more saline habitats as they grew, staying longer the earlier they entered. (2/5)
Harrison used to be the most productive Chinook salmon population in the Fraser, but has been declining for generations and is now considered Threatened by @cosewic. Knowing now that they rely on estuarine habitat as juveniles, we must work to protect & restore this estuary (3/5)
This work comes on the heels of our look at conservation decisions for 102 species at risk in the Fraser estuary, which demonstrated that this important ecosystem is on the brink, requiring urgent action: https://www.taramartin.org/research/fraser-river-estuary-priority-threat-management/ @LauraJKehoe @TaraGMartin @baumlab (4/5)
Press release: https://www.raincoast.org/press/2021/new-study-shows-importance-of-estuary-habitats-for-threatened-chinook-salmon-in-the-fraser-river/
Full paper pdf: http://dx.doi.org/10.1139/cjfas-2020-0247
Thanks to co-authors @dcscott_BC, @Duffling, Steve Stark ( @TsawwassenFN), John Dower ( @UVicScience), Terry Beacham ( @DFO_Pacific), @TaraGMartin, & @baumlab & a huge thank you to our volunteers! (5/5)
Full paper pdf: http://dx.doi.org/10.1139/cjfas-2020-0247
Thanks to co-authors @dcscott_BC, @Duffling, Steve Stark ( @TsawwassenFN), John Dower ( @UVicScience), Terry Beacham ( @DFO_Pacific), @TaraGMartin, & @baumlab & a huge thank you to our volunteers! (5/5)
