Assessing the change in sperm velocity and sperm concentration in the same males between stage 1 and 2 of the experiment

This file contains data used to assess the change in ejaculate parameters from stage 1 to stage 2 of the experiment within males of the same social status group. Sperm concentration and velocity measurements for male chinook salmon taken at both stages of a two-stage social manipulation experiment. Social dominance was determined within each pair using video recordings of aggressive behavior. Sperm concentration was measured using a haemocytometer. Sperm velocity was measured using Computer Assisted Sperm Analysis.