Results 1 to 10 of about 736 (133)

Diversity Under Pressure: Long-Term Genetic Decline in California's Central Valley Chinook Salmon ESA Listed Runs. [PDF]

Ecol Evol
Chinook salmon in the Central Valley of California have notable intraspecific diversity because it is the only place where four distinct migration timings (Winter, Spring, Fall, Late‐fall) co‐occur. The Winter run is listed as Endangered and the Spring run is listed as Threatened under the Endangered Species Act. To quantify temporal changes in genetic
Collins EE, Thompson TQ, Goertler P, Baerwald MR, Meek MH.   +4 more
europepmc   +2 more sources

Finite Element Implementation of SAFE for Asymmetric Stream-Aquifer Flow Exchange. [PDF]

Ground Water
Abstract Climate change and human activities increasingly affect interconnected stream–aquifer systems, motivating continued evaluation of how stream–aquifer interactions are represented in integrated groundwater–surface water models. Most groundwater models quantify stream–aquifer exchange using an empirical riverbed leakance parameter that is ...
Kourakos G, Morel-Seytoux H, Dogrul EC, Kadir T, Dahlke HE.   +4 more
europepmc   +2 more sources

Quantifying the Evolutionary Potential for Delta Smelt Persistence in a Warming Habitat. [PDF]

Evol Appl
ABSTRACT Long‐term persistence of managed species will depend, in part, on whether the species harbors the physiological or genetic potential to adjust to warming temperatures, and whether relevant genetic variation is modified by management practices.
Griffiths JS, Finger AJ, Rahman MM, Davis BE, Hung TC, Fangue NA, Whitehead A.   +6 more
europepmc   +2 more sources

Projecting Climate Change Impacts on Channel Depletion in the Sacramento–San Joaquin Delta of California in the 21st Century

Forecasting
The Sacramento–San Joaquin Delta (Delta) is a critical hub of California’s statewide water distribution system. Located at the confluence of California’s two largest rivers, the Sacramento River and the San Joaquin River, the Delta features a complex ...
Minxue He, Seyed Ali Akbar Salehi Neyshabouri, Sohrab Salehi   +2 more
exaly   +3 more sources

Modeling ion constituents in the Sacramento-San Joaquin Delta using multiple machine learning approaches

Journal of Hydroinformatics, 2023
Salinity is of paramount importance in shaping water quality, ecosystem health, and the capacity to sustain diverse human and environmental demands in estuarine environments.
Peyman Namadi, Minxue He, Prabhjot Sandhu   +2 more
doaj   +1 more source

Benthic Ammonia Oxidizers Differ in Community Structure and Biogeochemical Potential Across a Riverine Delta

Frontiers in Microbiology, 2015
Nitrogen pollution in coastal zones is a widespread issue, particularly in ecosystems with urban or agricultural watersheds. California’s Sacramento-San Joaquin Delta, at the landward reaches of San Francisco Bay, is highly impacted by both agricultural ...
Julian eDamashek, Jason Michel Smith, Jason Michel Smith, Annika eMosier, Annika eMosier, Christopher eFrancis   +5 more
doaj   +1 more source

Sidebar: A truce in the water wars

California Agriculture, 1995
Not Available – First paragraph follows: The conflict over water diversions from the Sacramento-San Joaquin Delta has been one of the longest and most severe of California's water wars.
M Marchetti, P Moyle
doaj   +1 more source

Filter envelopes aid tile drainage in Sacramento—San Joaquin Delta tests

California Agriculture, 1964
Enveloping perforated bituminized fiber and plastic subsurface tile drain in a safflower straw sandwich gave excellent performance in maintaining field drainage in Sacramento-San Joaquin Delta tests.
T Lyons, L Werenfels, C Houston
doaj   +3 more sources

Global warming and the Sacramento-San Joaquin Delta

California Agriculture, 1990
The likelihood of global warming and its potential consequences are major concerns to global climate researchers, government officials, and members of the public.
Samuel H. Logan
doaj   +3 more sources

Availability of high-magnitude streamflow for groundwater banking in the Central Valley, California

Environmental Research Letters, 2017
California’s climate is characterized by the largest precipitation and streamflow variability observed within the conterminous US This, combined with chronic groundwater overdraft of 0.6–3.5 km ^3 yr ^−1 , creates the need to identify additional surface ...
Tiffany N Kocis, Helen E Dahlke
doaj   +1 more source