Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Ambassidae
Etymology: Ambassis: Derived from Greek, anabasis = climbing up (Ref. 45335).
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; potamodromous (Ref. 51243). Subtropical; 23°S - 35°S (Ref. 86699)
Oceania: endemic to Australia: New South Wales ( Murray-Darling basin, SE coastal), Queensland (Murray-Darling basin, NE costal), South Australia (Murray-Darling basin), Victoria (Murray-Darling basin); known only from limital area, Rockhampton, Queensland (23°22'S) to Lake Hiawatha, New South Wales(29°48'S) and Murray-Darling system as far south and west as Swan Reach, South Australia (34°34'S, 139°36'E).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm SL male/unsexed; (Ref. 44894)
Inhabit streams, ponds, swamps (Ref. 5259, 44894), rivers, creeks, reservoirs and drainage ditches (Ref. 44894); occurring in areas with plenty of weed cover at temperatures from 18°-27°C. Feed on small crustaceans. Spawn early in the morning: males display fins while chasing the female, swimming in a zigzag pattern. Demersal eggs are deposited and fertilized on vegetation with larvae hatching after 24 hours (Ref. 7311). Similar in appearance to A. agrammus and A. mulleri.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
IUCN Red List Status (Ref. 125652)
Fisheries: of no interest; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00506 - 0.02993), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.41 se; based on food items.
Generation time: 1.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.86).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (16 of 100).