Herring Infection Prevalence Data, 2007-2016, EVOS Herring Program

These data are part of the Herring Program of the Exxon Valdez Oil Spill Trustee Council, project numbers 070819, 10100132-I, 12120111-K, 14120111-K, and 16120111-K, which is a multi-faceted study to determine why herring populations in Prince William Sound remain depressed since the early 1990s.

The project was designed to assess the prevalence and intensity of several pathogens (viral hemorrhagic septicemia virus (VHSV),viral erythrocytic necrosis (VEN), and Ichthyophonus) in herring populations from 2012 to 2016 in Prince William Sound (PWS). Other reference herring populations from Sitka, Alaska were periodically sampled outside PWS. The dataset is ten tabular data files in comma-separated values (csv) format containing standard headers including fish length, weight, positive / negative data for each pathogen, and pathogen loads, when applicable. Files are organized by year (2012 to 2016) and sample location (Stika and PWS). Additionally, a single csv file contains a summary of infection prevalence ratios (VHSV, VEN, and Icthyophonus) for PWS from 2007 to 2016. Data from 2007 to 2011 were collected under the EVOS PWS Herring Disease Program, project numbers 070819 and 10100132-I.