Ambassis gymnocephalus  (Lacepède, 1802)

Bald glassy
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Ambassis gymnocephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Ambassis gymnocephalus (Bald glassy)
Ambassis gymnocephalus
Picture by Ratmuangkhwang, S.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Ambassidae (Asiatic glassfishes)
Etymology: Ambassis: Derived from Greek, anabasis = climbing up (Ref. 45335).

Issue
Considered as a nomen dubium by Anderson & Heemstra, 2003 (Ref. 50956:200); no types known and illustration and description were found undiagnostic.

Environment / Climate / Range Ecology

Marine; freshwater; brackish; demersal; pH range: 7.2 - 8.2; amphidromous (Ref. 51243).   Tropical; 22°C - 28°C (Ref. 12468)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 4180)

Short description Morphology | Morphometrics

Dorsal spines (total): 7 - 8; Dorsal soft rays (total): 8-10; Anal spines: 3; Anal soft rays: 8 - 10

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: Red Sea and South Africa to the Philippines, north to China (Ref. 33450) and Taiwan (Ref. 5193), south to northern Australia.

Biology     Glossary (e.g. epibenthic)

Found in shallow waters; common in estuaries; may enter lower reaches of rivers. Can tolerate fresh water only within a narrow temperature (23-26°C). Feeds mainly at night on crustaceans, but also takes small fishes, fish eggs and larvae in estuaries (Ref. 7248). Marketed dried and salted (Ref. 12693).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Maugé, L.A., 1986. Ambassidae. p. 297-298. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4180)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00806 - 0.03264), b=3.02 (2.83 - 3.21), based on LWR estimates for species & (Sub)Family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.9   ±0.56 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (k=1.20).
Vulnerability (Ref. 59153):  Low vulnerability (12 of 100) .
Price category (Ref. 80766):   Low.