The aim of this research was to experimentally examine the reproductive strategies of Neobenedenia, a commercially important ectoparasite of finfish. Specifically we sought to determine: 1) whether Neobenedenia can reproduce in isolation; 2) Neobenedenia fecundity over time and; 3) whether Neobenedenia exhibit egg laying rhythms and/or hatching rhythms. The associated data set provides five worksheets showing raw count data collected for 1) parasite infection success; 2) egg hatching success; 3) parasite fecundity; 4) egg laying rhythm and 5) egg hatching rhythm.