Tag: fish food
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Fish domination of avian food webs
By Christine Parisek & Jon Walter . . . Food webs are the backbones of ecosystems: they chart the flow of energy through ecosystems in terms of who eats whom, and their structure helps determine whether an ecosystem will be stable over time. While food web studies often focus on relationships within a particular habitat…
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Growing food for ducks and fish in seasonally flooded managed wetlands
By Kyle Phillips, Alice Tung, Teejay O’Rear, John Durand In a recent publication in Freshwater Biology, UC Davis researchers found that waterfowl food-plants in managed wetlands of Suisun Marsh can boost plankton production by an order of magnitude compared to plants in open tidal habitats. Suisun Marsh is one of the largest tidal wetlands on the west coast…
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Hidden links between aquatic and terrestrial ecosystems: part 2 – Sacramento River
By Nicholas Wright Running through the Central Valley’s patchwork of yellow, green, and brown farmlands is the deep blue of California’s largest river–the Sacramento. Once a much wider river, meandering across the flat valley floor, the Sacramento has been straight-jacketed by steep earthen levees and confined to a more controlled channel. On either side of…
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Fish are born free, but are everywhere in cages this spring
by Carson Jeffres, Eric Holmes, and Andrew Rypel State, federal, and local governments, water users, and the public are all concerned with the survival of salmon. Over decades, and especially recent years, most salmon runs have severely declined in California. Part of sustaining salmon populations is improving the survival and fitness of young salmon as…