Teleostei >
Ovalentaria/misc (Various families in series Ovalentaria) >
Ambassidae (Asiatic glassfishes)
Etymology: Ambassis: Derived from Greek, anabasis = climbing up (Ref. 45335).
More on authors: Gilchrist & Thompson.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水 居於水底的. ; 13°N - 39°S, 19°E - 52°E
Western Indian Ocean: East coast from KwaZulu-Natal south to Algoa Bay in South Africa (Ref. 4318, 7248, 52193). Reported from east Africa (Ref. 4318), including Madagascar (Ref. 4180, 50956) and Mauritius (Ref. 50956).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 3.5 range ? - ? cm
Max length : 10.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 52193)
背棘 (總數) : 8; 背的軟條 (總數) : 9 - 11; 臀棘: 3; 臀鰭軟條: 9 - 11. Diagnosis: Ambassis natalensis has following combination of characters: supraorbital spines 1-4; rostral spine absent; rear margin of preopercle entirely serrate; preopercle ridge smooth except for 1-5 tiny spines at rear corner; interopercle smooth or with 1-4 tiny serrae at angle; two rows of cheek scales; predorsal scales 9-11; lateral line continuous; lower gill rakers 19-22; pectoral-fin rays 14-15; teeth on vomer and palatines in 2-3 rows (Ref. 50956).
Tolerant of freshwater within a temperature range of 19-27°C (Ref. 4180, 52193, 79840). In summer, it feeds mainly in early evening and late morning while in winter, it feeds both day and night on crustaceans as well as insects (aquatic and terrestrial) and fish (Ref. 7248, 52193). Excellent subject for biological research as it easily thrives in captivity (Ref. 12484).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 12 February 2017
人類使用
漁業: 沒有興趣; 水族館: 商業性; 誘餌: usually
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Estimates based on models
Preferred temperature (Ref.
123201): 23.9 - 27.6, mean 26.7 °C (based on 82 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00728 - 0.02742), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.59 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Assuming Fec > 10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
