Isolating the AFFF Signature in Coastal Watersheds Using Oxidizable PFAS Precursors and Unexplained Organofluorine

2021 ◽  
Author(s):  
Bridger J. Ruyle ◽  
Heidi M. Pickard ◽  
Denis R. LeBlanc ◽  
Andrea K. Tokranov ◽  
Colin P. Thackray ◽  
...  
Keyword(s):  
Coastal Watersheds

Linking on-farm dairy management practices to storm-flow fecal coliform loading for California coastal watersheds

2005 ◽  
Vol 107 (1-3) ◽  
pp. 407-425 ◽  
Author(s):  
D. J. Lewis ◽  
E. R. Atwill ◽  
M. S. Lennox ◽  
L. Hou ◽  
B. Karle ◽  
...  
Keyword(s):  
Fecal Coliform ◽  
Management Practices ◽  
Dairy Management ◽  
Coastal Watersheds ◽  
Storm Flow ◽  
On Farm

scholarly journals Effects of urbanization of coastal watersheds on growth and condition of juvenile alewives in New England

2020 ◽  
Vol 77 (3) ◽  
pp. 594-601 ◽  
Author(s):  
Rita Monteiro Pierce ◽  
Karin E. Limburg ◽  
Daniella Hanacek ◽  
Ivan Valiela
Keyword(s):  
Land Cover ◽  
New England ◽  
Urban Land ◽  
Trophic Levels ◽  
Alosa Pseudoharengus ◽  
Urban Land Cover ◽  
Coastal Watersheds ◽  
Weight Condition ◽  
Young Of The Year ◽  
Dominant Influence

Alosa pseudoharengus (alewife) has declined throughout New England. A factor that may be responsible for such stock reductions is urbanization of watersheds discharging into alewife nursery ponds. We found that young-of-the-year (YOY) alewife length, weight, condition factor, and growth rate decreased in relation to increased urban land cover on watersheds of nine Massachusetts and Maine ponds. The watersheds ranged from 3% to 60% urbanized land cover. YOY δ15N increased significantly in proportion to urbanized land cover on watersheds, suggesting a concrete link between watershed land cover and YOY alewife metrics, which is in agreement with previous knowledge that N discharges from more urbanized watersheds bear higher δ15N. The New England results confirmed results across a wide latitudinal gradient that suggested that the size of YOY alewife decreased as urban land cover on watersheds increased. The dominant influence of urban land cover in the YOY is highlighted by the fact that YOY alewife from ponds with the highest percentage of urban cover reached δ15N as high as that of adult spawners migrating from the ocean, who feed at higher trophic levels.

A Time‐Dependent Model of Nitrogen Loading to Estuaries from Coastal Watersheds

2000 ◽  
Vol 29 (5) ◽  
pp. 1448-1461 ◽  
Author(s):  
John W. Brawley ◽  
Glynnis Collins ◽  
James N. Kremer ◽  
Chi‐Ho Sham ◽  
Ivan Valiela
Keyword(s):  
Nitrogen Loading ◽  
Time Dependent ◽  
Coastal Watersheds ◽  
Dependent Model ◽  
Time Dependent Model
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