Pseudomugil signifer
Pseudomugil signifer Kner, 1866
Pacific blue eye
Pseudomugil signifer
photo by Boeck, H.


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Family:  Pseudomugilidae (Blue eyes)
Max. size:  7 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; brackish; pH range: 6.5 - 7.5; dH range: 12 - 15
Distribution:  Oceania: endemic to Australia.
Diagnosis:   
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).
IUCN Red List Status: Least Concern (LC); Date assessed: 12 February 2019 Ref. (130435)
Threat to humans:  harmless


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