scholarly journals Water and Streambed-Sediment Quality in the Upper Elk River Basin, Missouri and Arkansas, 2004-06

2007 ◽  
Author(s):  
Brenda J. Smith ◽  
Joseph M. Richards ◽  
John G. Schumacher
Keyword(s):  
River Basin ◽  
Sediment Quality ◽  
Streambed Sediment ◽  
Elk River

Within-river straying: sex and size influence recovery location of hatchery Chinook salmon (Oncorhynchus tshawytscha)

2020 ◽  
Vol 77 (2) ◽  
pp. 226-235 ◽  
Author(s):  
Amanda M.M. Pollock ◽  
Maryam Kamran ◽  
Andrew H. Dittman ◽  
Marc A. Johnson ◽  
David L.G. Noakes
Keyword(s):  
River Basin ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Classification Tree ◽  
River System ◽  
Classification Tree Analysis ◽  
Spawning Grounds ◽  
Natural Origin ◽  
Elk River ◽  
In The Wild

Salmon straying is often defined as the failure of adults to return to their natal river system. However, straying within a river basin can be problematic if hatchery salmon do not return to their hatchery of origin and subsequently spawn in the wild with natural-origin salmon. We examined within-river straying patterns from 34 years of coded-wire tag data, representing 29 941 hatchery fall Chinook salmon (Oncorhynchus tshawytscha) in the Elk River, Oregon, USA. Using classification tree analysis, we found that females and larger salmon were more likely to be recovered on the spawning grounds than males and smaller fish. Females larger than 980 mm had a 51.6% likelihood of recovery on the spawning grounds rather than at the Elk River Hatchery. Our findings raise questions about the behavior of straying adults and implications for management of these stocks, with a focus on methods to reduce within-river straying. We recommend further studies to determine whether carcass recoveries are fully representative of hatchery salmon that stray within the Elk River basin.

Assessment of the impact on sediment quality from abandoned artisanal mine runoffs in a semi-arid environment (the Sonora River basin—Northwestern Mexico)

2019 ◽  
Vol 78 (5) ◽  
Author(s):  
Héctor M. Guzmán ◽  
Agustín Gómez-Álvarez ◽  
Jesús L. Valenzuela-García ◽  
Martín A. Encinas-Romero ◽  
Arturo I. Villalba-Atondo ◽  
...  
Keyword(s):  
River Basin ◽  
Sediment Quality ◽  
Arid Environment ◽  
Northwestern Mexico ◽  
The Impact ◽  
Semi Arid

Sediment Quality Evolution (2001–2011) in the Ebro River Basin (Spain)

2014 ◽  
Vol 92 (3) ◽  
pp. 334-340
Author(s):  
Oscar Veses ◽  
Rosa Mosteo ◽  
Maria P. Ormad ◽  
Jose L. Ovelleiro
Keyword(s):  
River Basin ◽  
Sediment Quality ◽  
Ebro River

Mussels of the Elk River Basin in Alabama and Tennessee-1965-1967

1973 ◽  
Vol 89 (2) ◽  
pp. 437 ◽  
Author(s):  
Billy G. Isom ◽  
Paul Yokley ◽  
Charles H. Gooch
Keyword(s):  
River Basin ◽  
Elk River
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