Pacific Salmon, Nutrients, and the Dynamics of Freshwater and Riparian Ecosystems

@article{Naiman2002PacificSN,
  title={Pacific Salmon, Nutrients, and the Dynamics of Freshwater and Riparian Ecosystems},
  author={Robert J. Naiman and Robert E. Bilby and Daniel E. Schindler and James M. Helfield},
  journal={Ecosystems},
  year={2002},
  volume={5},
  pages={399-417}
}
Pacific salmon (Oncorhynchus spp.) accumulate substantial nutrients in their bodies as they grow to adulthood at sea. These nutrients are carried to predominantly oligotrophic lakes and streams, where they are released during and after spawning. Research over more than 3 decades has shown that the annual deposition of salmon-borne marine-derived nutrients (MD-nutrients) is important for the productivity of freshwater communities throughout the Pacific coastal region. However, the pathways and… 
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References

SHOWING 1-10 OF 102 REFERENCES
EFFECTS OF SALMON-DERIVED NITROGEN ON RIPARIAN FOREST GROWTH AND IMPLICATIONS FOR STREAM PRODUCTIVITY
Anadromous Pacific salmon (Oncorhynchus spp.) transport marine-derived nitrogen (MDN) to the rivers in which they reproduce. Isotopic analyses indicate that trees and shrubs near spawning streams
Fertilization of terrestrial vegetation by spawning Pacific salmon : the role of flooding and predator activity
Spawning Pacific salmon (Onchorhynchus) transport marine-derived nutrients into streams and rivers. Subsequently, these marine-derived nutrients are incorporated into freshwater and terrestrial food
Implications of Trends in Marine-derived Nutrient Influx to South Coastal British Columbia Salmonid Production
TLDR
In the large number of streams with smaller salmon escapements, stream-rearing species already in decline may decrease further from oligotrophication, and risk-averse escapement targets for wild salmon stock...
The Role of Anadromous Sockeye Salmon in the Nutrient Loading and Productivity of Redfish Lake, Idaho
TLDR
A simulation model was constructed for Redfish Lake, Idaho, to predict the dependence of lake production on nutrients from the watershed, precipitation, lake fertilization, and marine-derived nutrients from sockeye salmon Oncorhynchus nerka which historically have reared in the lake.
RECONSTRUCTING SALMON ABUNDANCE IN RIVERS: AN INITIAL DENDROCHRONOLOGICAL EVALUATION
Decision-makers concerned with salmon or their stream habitats are faced with many persistent, difficult questions including: how large and variable were these populations before European settlement?
BRITISH COLUMBIA LAKE ENRICHMENT PROGRAMME: TWO DECADES OF HABITAT ENHANCEMENT FOR SOCKEYE SALMON
TLDR
Enhanced lake production has increased growth and survival of juvenile sockeye and increased smolt weights resulting in larger sockeye adult returns worth 10–20 million dollars per year to the Canadian economy, which is the best of currently available salmonid enhancement techniques.
Pacific salmon production trends in relation to climate
TLDR
The long-term pattern of the Aleutian Low pressure system corresponded to the trends in salmon catch, to copepod production, and to other climate indices, indicating that climate and the marine environment may play an important role in salmon production.
Factors Limiting Primary Productivity in Lake Ontario Tributaries Receiving Salmon Migrations
Many tributary streams of Lake Ontario have become important spawning habitats for introduced Pacific salmon. We examine how phosphorus released through salmon decom~position and other environmental
Ecological Effects of a Chum Salmon (Oncorhynchus keta) Spawning Run in a Small Stream of the Pacific Northwest
TLDR
The results support the notion that mass salmon spawning activities affect structure and dynamics of ecosystems.
An Estimation of Historic and Current Levels of Salmon Production in the Northeast Pacific Ecosystem: Evidence of a Nutrient Deficit in the Freshwater Systems of the Pacific Northwest
Abstract We used historical cannery records and current escapement and harvest records to estimate historical and current salmon escapement to western North American river systems, in order to
...
...