Fresh Water Animals
of
Hawaii's Watersheds
Introduced Fish:
Dojo
loach
Introduced prior to 1900 on Kaua'i, O'ahu and Mau'i. Used as
bait.
Adult size 4 inches (10 cm) in length.
Convict
cichlid
(Golden)
Tilapia
Introduced in the 1950's. Cultured for food in Africa and Asia.
Characterized by the long dorsal fin. Differentiated from the
bluegill by having no blue or black opercular flap. Useful to control
aquatic plants in irrigation systems and as a food fish. Adult size
4-6 inches (10-14 cm) in length. Young have, dorsally, horizontal
black bars.
Family Poeciliidae:
Swordtails, guppies, mollies and top minnows. Common in streams,
ponds, resevoirs. A large family of small, live-bearing fish. Used as
aquarium fish and as bait fish. Suitable for classroom aquariums.
Mosquito fish are also a member of this family. 
Mosquito fish
Brought from Texas in 1905 for mosquito control. Abundant in lower
reaches of streams. Can reach a length of 1 inch (2.5 cm).
Swordtail
Molly
Guppy
Family Loricariidae:
Armoured
catfish
(Armoured
catfish) variations
Hawaii's Watersheds
Last update= July, 1997 (Capers)