分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Mugiliformes (Mullets) >
Mugilidae (Mullets)
Etymology: Pseudomyxus: Name from the genus Myxus preceeded by Greek prefix 'pseudo' meaning 'false'..
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 淡水; 半咸淡水 居于水底的; 降海洄游 (Ref. 51243). 亞熱帶的; 25°S - 35°S
Africa: endemic to South Africa, in east coastal estuaries and rivers from the Breë River to Kosi Bay (Ref. 7248, 52193).
非洲: 到科西灣 (南非) 的東海岸的河口與河從肉湯河.
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 23.0 range ? - ? cm
Max length : 45.0 cm FL 雄鱼/尚未辨别雌雄; (Ref. 52193)
背棘 (总数): 5; 背的软条 (总数): 8; 臀棘 3; 臀鳍软条: 9.
银灰色的颜色.(参考文献 4393)
Adults occur in freshwater to estuarine conditions. Adults breed at sea, throughout the year; juveniles move into estuaries and enter rivers usually in late winter or early spring (Ref. 52193). Females remain in freshwater for 7 years, males for 4 years (Ref. 52193). Return to estuaries before maturing sexually prior to spawning (Ref. 52193). Oviparous, eggs are pelagic and non-adhesive (Ref. 205). Feed on benthic algae and small invertebrates over muddy bottom (Ref. 6465). Decline in population from obstruction, by dams and weirs, of free passage into rivers.
出现于淡水到河口的环境。 在海上繁殖; 稚鱼移进河口中而且在冬季末或在初春之际进入河。 雌性逗留在淡水的 7 年, 达 4 年的雄性。 在产卵之前性成熟之前回到河口。 吃在泥底部上的水底藻类与小型无脊椎动物。 (参考文献 6465) 从障碍族群减少,藉着水坝与鱼梁, 分离通道进入河之内。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Breed at the sea throughout the year. Juveniles move into estuaries and enter rivers usually in late winter or early spring. Males remain in freshwater until 4 years, females for up to 7 years. Fish return first to estuaries before maturing sexually prior to spawning (Ref. 7248).非洲: 到科西灣 (南非) 的東海岸的河口與河從肉湯河.
Thomson, J.M., 1986. Mugilidae. p. 344-349. 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. 3573)
人类利用
渔业: 商业性; 水族馆: 商业性
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Estimates based on models
Preferred temperature (Ref.
123201): 15.3 - 24.9, mean 22.6 °C (based on 20 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00668 - 0.02065), b=2.96 (2.81 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.8 ±0.27 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
