Scientific Name
Pseudomugil signifer
Common Name
Pacific blue-eye
Biology
Occurs in clear, cool, fast-flowing streams and also brackish mangrove estuaries. Inhabits tidal mangrove creeks or fringing coastal mangrove and around offshore islands. Also common in clear, forest streams. Water temperature varies between 15? and 28?C, with the lower end of the scale applicable during winter over the southernmost part of the range. The pH fluctuates from 5.5-7.8 according to habitat conditions. At least 15 geographical varieties have been recognized, but detailed morphological studies reveal there is only one species (Ref. 44894).