Phenotypic characterization of disease resistance in hybrid striped bass Morone saxatilis x M. chrysops (HSB) and its parental species white bass M. chrysops (WB) and striped bass M. saxatilis (SB)

Authors: Farmer, Bradley; Deshotel, Michael; Fuller, Sidney; McEntire, Matthew; Abernathy, Jason

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/23/2023
Publication Date: 2/23/2023
Citation: Farmer, B.D., Deshotel, M.B., Fuller, S.A., McEntire, M.E., Abernathy, J.W. 2023. Phenotypic characterization of disease resistance in hybrid striped bass Morone saxatilis x M. chrysops (HSB) and its parental species white bass M. chrysops (WB) and striped bass M. saxatilis (SB) [abstract]. Abstracts of Aquaculture America 2023, February 23-26, 2023, New Orleans, Louisiana. p. 183.

Interpretive Summary:

Technical Abstract: Hybrid striped bass Morone saxatilis x M. chrysops (HSB) and its parental species white bass M. chrysops (WB) and striped bass M. saxatilis (SB) were evaluated for their susceptibility three problematic diseases of the HSB industry. The characterized genetic populations were the F6 for SB from North Carolina State University and F1 for WB from Stuttgart National Aquaculture Research Center. The three economically significant diseases as implicated by producers and obtained from commercial bass farms were columnaris disease, motile aeromonad septicemia and strepptococcosis. The mean survival time in days post challenge across the three diseases was 5.1, 4.6 and 2.5 for WB, HSB, and SB respectively. The mean percent survival for the three diseases was 66.1, 34.5 and 1.1 for WB, HSB, and SB respectively. The culmination of the data generated by these experiments indicate that the striped bass is the most susceptible of the three species and thus the target if improvement of disease resistance phenotype be achieved.