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: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; demersal; oceanodromous (Ref. 51243). Subtropical
Africa: Subtropical eastern South Africa to Kenya, Madagascar, Réunion and Mauritius (Ref. 50956).
Length at first maturity / Size / Weight / Age
Maturity: Lm 5.0  range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 52193)
Dorsal spines (total): 8; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 9 - 11. Diagnosis: Ambassis ambassis has the following combination of characters: a single supraorbital spine; rostral spine absent; preopercle ridge and rear margin serrate; interopercle edge smooth except for few small serrae at angle; 2-3 rows of cheek scales; predorsal scales 13-18; lateral line continuous (normally); lower gill rakers 19-23; pectoral-fin rays 14-15 (Ref. 50956).
Body shape (shape guide): short and / or deep; Cross section: oval.
Tolerant of freshwater when water temperature is within 7-32°C (Ref. 7248, 79840). Tends to be more tolerant of lower temperatures in water of low salinity (2ppt) than in seawater (Ref. 7248). Feeds at night on crustaceans, fish fry and larvae and insects (Ref. 7248). Salt dried and eaten in some countries (Ref. 12484)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Yoshigou, H., 2025. Morphological comparison within the glass perchlets genus Ambassis (Osteichthyes: Ovalentalia: Ambassidae), with reference to the comparison of some characters shared with other related genera. Miscellaneous Reports of the Hiwa Museum for Natural History 66:1-47. (Ref. 138911)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01514 (0.00909 - 0.02520), b=2.99 (2.85 - 3.13), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophic level (Ref. 69278) |
3.7 ±0.56 se; based on food items. |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (21 of 100). 🛈 |