scholarly journals Nutrient transport in the major rivers and streams of the Puget Sound Basin, Washington

Fact Sheet ◽  
1998 ◽  
Author(s):  
E.L. Inkpen ◽  
S.S. Embrey
Keyword(s):  
Puget Sound ◽  
Nutrient Transport ◽  
Rivers And Streams

Historical abundance of Puget Sound steelhead, Oncorhynchus mykiss, estimated from catch record data

2011 ◽  
Vol 68 (3) ◽  
pp. 498-510 ◽  
Author(s):  
N. Gayeski ◽  
B. McMillan ◽  
P. Trotter
Keyword(s):  
Oncorhynchus Mykiss ◽  
Puget Sound ◽  
Total Abundance ◽  
Commercial Catch ◽  
Freshwater Habitat ◽  
Abundance Estimates ◽  
Rivers And Streams ◽  
Average Abundance ◽  
Record Data ◽  
Unreported Catches

We used reported commercial catch data and historical information regarding unreported catches to estimate the abundance of winter steelhead, Oncorhynchus mykiss , in Puget Sound rivers in 1895, the year in which the peak commercial catch of steelhead occurred. We employed a Bayesian analysis to address the uncertainties associated with the estimation process and report abundance estimates for four large northern Puget Sound rivers and for the remaining aggregate of rivers and streams in Puget Sound. The central 90% of the posterior distribution of total abundance ranged from 485 000 to 930 000, with a mode of 622 000. Compared with the 25-year average abundance for all of Puget Sound of 22 000 for the 1980–2004 period, our results show that current abundance is likely only 1%–4% of what it was prior to the turn of the 20th century. Loss of freshwater habitat alone can account for this reduction in abundance only if there was an extraordinary decline in productivity. Our estimates of historical abundance should better inform the development of recovery goals for Puget Sound steelhead.

Endangered Butterflies and their Non-Native Host Plants: Examining Shifting Values of Belonging in Restoration

2019 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Robert M. Anderson ◽  
Amy M. Lambert
Keyword(s):  
Ecological Restoration ◽  
Native Species ◽  
Puget Sound ◽  
A Value ◽  
The Social ◽  
Remote Island ◽  
Scientific Truth ◽  
Native Host

The island marble butterfly (Euchloe ausonides insulanus), thought to be extinct throughout the 20th century until re-discovered on a single remote island in Puget Sound in 1998, has become the focus of a concerted protection effort to prevent its extinction. However, efforts to “restore” island marble habitat conflict with efforts to “restore” the prairie ecosystem where it lives, because of the butterfly’s use of a non-native “weedy” host plant. Through a case study of the island marble project, we examine the practice of ecological restoration as the enactment of particular norms that define which species are understood to belong in the place being restored. We contextualize this case study within ongoing debates over the value of “native” species, indicative of deep-seated uncertainties and anxieties about the role of human intervention to alter or manage landscapes and ecosystems, in the time commonly described as the “Anthropocene.” We interpret the question of “what plants and animals belong in a particular place?” as not a question of scientific truth, but a value-laden construct of environmental management in practice, and we argue for deeper reflexivity on the part of environmental scientists and managers about the social values that inform ecological restoration.

Otolith research for Puget Sound

Fact Sheet ◽  
2007 ◽  
Author(s):  
K. Larsen ◽  
R. Reisenbichler
Keyword(s):  
Puget Sound
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