AFEP: Health effects associated with in-river and barged outmigrant Chinook salmon. (Anadromous fish evaluation program (AFEP): Risk of dams and contaminants on salmon.)
Vydavatel National Oceanic and Atmospheric Administration, Department of Commerce
Datum vydání před více než 9 roky
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Popis
The objective of the proposed study is to determine the contribution of Federal Columbia River Power System (FCRPS) mitigation strategies (barges and bypass) to pathogen prevalence and disease transmission resulting in subsequent latent mortality in hatchery-reared Snake River spring/summer Chinook salmon. We intend to repeat the proposed work for three consecutive years to establish reproducibility in the results and account for annual variability. The objectives of the proposed study are subdivided into three primary tasks: 1. Assess the spatial and temporal distribution of pathogens, chemistry parameters, and the severity of infection in outmigrants of hatchery-origin. 2. Characterize the impact of transport operations on disease transmission. 3. Estimate the incidence of latent mortality associated with the type and severity of infectious disease. Temporal and spatial data on chemical body burdens and pathogen prevalence in outmigrant juvenile Chinook salmon. Disease challenge survival curves. Disease transmission under simulated barging conditions.