Teleostei (teleosts) >
Ovalentaria/misc (Various families in series Ovalentaria) >
Ambassidae (Asiatic glassfishes)
Etymology: Ambassis: Derived from Greek, anabasis = climbing up (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; demersal. Tropical; 22°C - 38°C (Ref. 2847); 3°S - 16°S
Oceania: Two isolated populations, Northern Territory coastal streams from Victoria River to McArthur River and Cape York Peninsula, Queensland north of about 15°S. Also recorded from central southern New Guinea (Ref. 5259, 2847).
Length at first maturity / Size / Weight / Age
Maturity: Lm 3.0, range 3 - 3.5 cm
Max length : 7.5 cm SL male/unsexed; (Ref. 44894); common length : 4.5 cm SL male/unsexed; (Ref. 5259)
Found in streams, ponds, and swamps (Ref. 5259). Inhabits rivers and creeks flowing through rainforest, sometimes in stagnant pools or slowly flowing rivulets. Also occurs along the margins of swamps and lakes. Usually forms large aggregations that shelter among aquatic vegetation. The breeding season coincides with the onset of monsoonal spring rains (Ref. 44894). Feeds on micro-crustaceans, insects, small arachnids, fish and algae (Ref. 2847).
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. 130435: Version 2024-1)
Threat to humans
Harmless
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00496 - 0.02912), 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 ±0.43 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (tm=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).