Scientific Name
Mogurnda adspersa

Common Name
Purple-spotted gudgeon

Biology
Inhabits slow-flowing or still waters, among weed (Ref. 7327). Occurs in rivers, creeks and billabongs, usually over rocks or among vegetation (Ref. 44894). Feeds on worms, dragonfly larvae, midge and mosquito larvae, crustaceans and mosquito fishes (Ref. 7327). Maturity: F at 4.9 cm, M at 4.5 cm. Sexually dimorphic. Direct pair spawning in rivers and ponds at 19-34?C in Dec.-Feb. A single cluster of demersal eggs laid on a solid substrate, often close to vegetation (Ref. 7276). Spawns during the rainy season (November to March). Females produce successive batches of 280-1300 eggs which are deposited on rocks, logs, or other solid debris. Males guard and fan the eggs until hatching, which takes about 3-9 days depending on temperature (Ref. 44894). Preyed on by Perca fluviatilis and competes with mosquito fish (Ref. 7329).

Classification

Classified By

Castelnau, 1878

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Sleepers (Eleotridae)

Distribution

Region

Oceania

Distribution

Oceania: Murray-Darling system of Victoria, New South Wales and Queensland, Australia. Also eastern coastal drainages north of the Clarence River, New South Wales.

Range

14°S - 36°S

Environment

Climate

Subtropical

Water Temperature From

16 °C

Water Temperature To

20 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 7.0 - ? ; dH range: 10 - 20 benthopelagic

Trophic Level

3.45 s.e. 0.48 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

14.0 cm

Common Length

7.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; aquarium: commercial

Vulnerability

Low vulnerability (22 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated