Quantifying aquatic food web interactions in Lake Chelan ...

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Lake trout populationlevel consumption: fish only Salmonid prey difficult to identify by bones: about half are kokanee, rest are mostly unidentified Under this scenario, annual lake trout consumption = 3,400 kg salmonids = 92,000 age 1 kokanee
Predation on salmonids: Conclusions Lake trout are a major predator on salmonids in both lake basins. We have the tools to quantify their current predation impact on kokanee. Northern pikeminnow may also be an important predator, in the Wapato Basin only. No other species currently eats many salmonids
Page 1 and 2: Quantifying aquatic food web intera
Page 4 and 5: Littoral Pelagic Profundal Deep Luc
Page 6 and 7: Top Predators Native Burbot Westslo
Page 8 and 9: Predation on salmonids What are the
Page 10 and 11: Lake trout diet • All size classe
Page 12 and 13: Northern pikeminnow diet • All si
Page 14 and 15: Growth Consumption = + Metabolism +
Page 16 and 17: Lake trout survival and population
Page 20 and 21: Competition for zooplankton Do Mysi
Page 22 and 23: Estimating abundance, distribution,
Page 24 and 25: Mysis abundance and distribution Fl
Page 26 and 27: Do Mysis and kokanee compete for fo
Page 28 and 29: Cutthroat trout and Chinook • No
Page 30 and 31: FUTURE RESEARCH OPPORTUNITIES Visua
Page 32 and 33: FUTURE RESEARCH OPPORTUNITIES Evalu
Page 34: Questions
Page 39 and 40: Mysis planktivory • Cladoceran st
Page 41 and 42: Lake trout diet: February 100% Lake

Quantifying aquatic food web interactions in Lake Chelan ...

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