Australian lamprey (Mordacia mordax) fish profile and information / pictures of Australian lamprey - Mordacia mordax

Australian lamprey (Mordacia mordax) fish profile

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Scientific Name Mordacia mordax
Classified By Richardson, 1846
Common Name Australian lamprey
Class Lampreys (Cephalaspidomorphi)
Order Lampreys (Petromyzontiformes)
Family Lampreys (Petromyzontidae)
Biology Adults inhabit the sea for an undetermined period and are parasitic on fishes; enter freshwater to breed. Majority of adulthood is spent in estuaries or at sea. Upstream spawning migrants occur in fast-flowing sections of rivers with a mud, sand or silt substrate, sometimes seen congregated below barriers to upstream movement such as weirs. Ammocoetes live in slow-flowing streams, burrowed in mud or silt. Common length is 35-40 cm (Ref. 44894).
Climate Temperate
Water Temperature From - Celcius Unknown °C
Water Temperature To - Celcius Unknown °C
Depth From - meters Unknown m
Depth To - meters Unknown m
Zone demersal
Distribution Southern Ocean: Southeastern Australia from Shoalhaven River, New South Wales to Gulf of St. Vincent, South Australia.
Region Southern Ocean
Range 35°S - 44°S
Maximum Length 50.0 cm
Common Length 37.5 cm
Environment Marine; freshwater; brackish; demersal; anadromous (Ref. 51243)
Vulnerability High to very high vulnerability (67 of 100)
Resilience Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)
Threat To Humans   Harmless
IUCN Red List Status   Not Evaluated 
Human Uses Fisheries: of no interest
Phylogenetic Diversity Index PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level 4.4 s.e. 0.79 Based on size and trophs of closest relatives
Is kept in Aquariums False
Occurs in Marine / Salt water True
Occurs in Brackish water True
Occurs in Fresh Water True
Occurs on Reefs False