High-elevation aquatic ecosystems are highly vulnerable to climate change, yet relatively few records are available to characterize shifts in ecosystem structure or their underlying mechanisms. Using a long-term data set on seven alpine lakes (3126 to 3620 m) in Colorado, USA, we show that ice-off dates have shifted 7 days earlier over...
Full Text:
ecosystem structure
Daniel L. Preston1, Nel Caine2,3, Diane M. McKnight2,4, Mark W. Williams2,3, Katherina
High-elevation aquatic ecosystems are highly vulnerable to climate change, yet relatively few records are available to characterize shifts in ecosystem structure or their underlying mechanisms. Using a long-term data set on seven alpine lakes (3126 to 3620 m) in Colorado, USA, we show that ice-off dates have shifted 7 days earlier over...
Full Text:
ice cover phenology and 4
aquatic ecosystem structure 5
6
Daniel L. Preston1, Nel Caine2,3
High-elevation aquatic ecosystems are highly vulnerable to climate change, yet relatively few records are available to characterize shifts in ecosystem structure or their underlying mechanisms. Using a long-term data set on seven alpine lakes (3126 to 3620 m) in Colorado, USA, we show that ice-off dates have shifted 7 days earlier over...
Describes natural resource use in the Yaquina Bay area about 1963. Bay Crab, clam, oyster, salmon, cutthroat trout and bottomfish fisheries are discussed. Touches on jetty fishing, skin and scuba diving, offshore salmon fisheries, underutilized fisheries and waterfowl hunting.
In 1961, the Technical Sub-Committee of the International Trawl Fishing Committee considered the petrale sole fishery: regulations, statistics, a report on fish-tagging experiments, and trends for the fishery. The group also considered mesh sizes and minimum sizes regulations for all species of bottomfish, and the Russo-Japanese fishery in the Eastern...