Science for integrative management of a diadromous fish stock: interdependencies of fisheries, flow, and habitat restoration

• Published in: Canadian journal of fisheries and aquatic sciences 2020-09, Vol.77 (9), p.1487-1504
• Main Authors: Munsch, Stuart H, Greene, Correigh M, Johnson, Rachel C, Satterthwaite, William H, Imaki, Hiroo, Brandes, Patricia L, O’Farrell, Michael R
• Format: Article
• Language: English
• Subjects: Agriculture; Anadromous migrations; Anadromous species; Anthropogenic factors; Case studies; Conservation; Diadromous fishes; Ecological restoration; Ecosystem approach to fisheries; Ecosystem management; Ecosystems; Environmental restoration; Estuaries; Fish industry; Fisheries; Fisheries management; Fishery management; Fishes; Freshwater; Freshwater fish; Fry; Habitat improvement; Habitat loss; Habitats; Human influences; Hydroelectric power plants; Juveniles; Living resources; Occupancy; Oncorhynchus tshawytscha; Overfishing; Resource conservation; Restoration; Salmon; Salmon fisheries; Salmoniformes; Smolts; Spawning migrations; Spawning populations; Spawning stock biomass; Stream flow; Sustainable development; Sustainable fisheries; Synergism; Water currents
• ISSN: 0706-652X; 1205-7533
• DOI: 10.1139/cjfas-2020-0075

Fish face many anthropogenic stressors. Authorities in marine, estuarine, and freshwater realms often share interdependent fisheries management goals, but address singular stressors independently. Here, we present a case study suggesting that coordinating stressor relief across management realms may synergize conservation efforts, especially to actualize restoration benefits. Major efforts are underway to restore juvenile salmon habitat across California’s Central Valley landscape, but it is unclear how fisheries and flow management will influence juvenile salmon occupancy of restored sites. Leveraging monitoring data, we find that for juvenile salmon (