Pedder galaxias

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Pedder galaxias

Extinct in the Wild  (EPBC Act)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Galaxiiformes
Family: Galaxiidae
Genus: Galaxias
Species:
G. pedderensis
Binomial name
Galaxias pedderensis

The Pedder galaxias (Galaxias pedderensis) is an Australian freshwater fish. It is considered to be extinct in the wild since 2005 by the

EPBC Act, and was originally found only in Lake Pedder in Tasmania
.

Range

Originally recorded only in Lake Pedder and inflowing streams, after the construction of the Huon–

Description

A small greenish-brown fish, off-white to silvery belly, a profuse irregular and highly variable pattern of alternating off-white and brownish contrasting bands extending into the base of the fins and breaking up into fine spots on the lower part of the sides. Length to 160 mm.

Habitat

Before the construction of the new lake, this species preferred Lake Pedder itself which was quite shallow surrounded by white sandy beaches and small rooted aquatic vegetation as well as in swamps and low velocity waters with abundant instream organic debris and overhanging terrestrial vegetation.[3]

Diet consists of small invertebrates, particularly arthropods and aquatic insect larvae, crustaceans and terrestrial insects especially beetles, flies, cicadas etc.[3]

Conservation status

Reproduction

Females are larger than males. Male genital papilla narrow, whereas female are broad and rounded, most noticeable during breeding season. 150 to 1,200 eggs averaging 1.9 mm to 2.3 mm in diameter when water hardened. Spawning reported to occur in spring (October) at water temperatures of 6.7 to 7.5 °C.

See also

References

External links