Gasterosteus microcephalus Girard, 1854
photo by Brill, J.

Family:  Gasterosteidae (Sticklebacks and tubesnouts)
Max. size:  5.5 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Japan; North America: Mexico (Ref. 47709). Needs better reference.
Biology:  Adults are confined to small streams (Ref. 559). Feed on aquatic insects and other invertebrates (Ref. 559). Males build nests on muddy bottoms and guards eggs and young for several weeks (Ref. 559).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (124695)
Threat to humans:  harmless
Country info:   

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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