This is a comprehensive database of critical oxygen (Pcrit) values from
freshwater, marine and euryhaline teleost fish compiled from published
literature. The database incorporates 331 measurements of Pcrit from a total
of 96 published studies and covers 151 fish species from 58 families. It
provided the opportunity to critically examine methodologies for determining
Pcrit as well as its usefulness as an indicator of hypoxia tolerance in fish.
Additional data are included (when available) on various abiotic and biotic
interactions with hypoxia and their effect on Pcrit. These included: water
temperature, salinity, pH, carbon dioxide, sex, photoperiod, diet, ration
size, body size (mass and length), respirometry method. The aim was to provide
a widely accessible central repository of physiological trait data that will
facilitate future studies of fish ecology, conservation and management.
