分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Mugiliformes (Mullets)
鱸形目 (Mullets) >
Mugilidae (Mullets)
鯔科 (Mullets)
Etymology: Pseudomyxus: Name from the genus Myxus preceeded by Greek prefix 'pseudo' meaning 'false'.
More on author: Valenciennes.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
海洋; 淡水; 半鹹淡水 居於水底的; 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 / 年齡
成熟度: Lm 23.0 range ? - ? cm
Max length : 45.0 cm FL 雄魚/尚未辨別雌雄; (Ref. 52193)
背棘 (總數) : 5; 背的軟條 (總數) : 8; 臀棘: 3; 臀鰭軟條: 9.
Body shape (shape guide): fusiform / normal.
銀灰色的顏色.(參考文獻 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.
出現在淡水到河口的環境。 成魚在海上繁殖; 稚魚移進河口中而且在冬季末或在初春之際進入河。 雌性逗留在淡水的 7 年, 達 4 年的雄性。 在產卵之前性成熟之前回到河口。 卵生的, 卵是大洋性與非黏性物.(參考文獻 205) 吃底部藻類與在泥底部上的小型無脊椎動物.(參考文獻 6465) 從障礙族群減少,藉著水壩與魚樑, 分離通道進入河之內。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
無危 (LC) ; Date assessed: 01 March 2007
人類使用
漁業: 商業性; 水族館: 商業性
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Estimates based on models
Preferred temperature (參考文獻
123201): 15.3 - 24.9, mean 22.6 °C (based on 20 cells).
Phylogenetic diversity index (參考文獻
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=2.97 (2.82 - 3.12), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (參考文獻
69278): 2.8 ±0.27 se; based on food items.
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
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