分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水; 深度上下限 0 - 50 m (Ref. 189). 熱帶; 28°N - 6°S, 111°W - 77°W (Ref. 189)
Eastern Pacific: central part of the Gulf of California (Rio Yaqui, Mexico) to the Gulf of Guayaquil, Peru.
東太平洋: 加州灣的中央部份 (Rio Yaqui, 墨西哥) 到祕魯的惠夜基灣。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.9 cm TL 雄魚/尚未辨別雌雄; (Ref. 96339)
背棘 (總數) : 0; 臀棘: 0; 臀鰭軟條: 19 - 23. Body moderately elongate, but somewhat compressed. Snout fairly short, about 3/4 eye diameter; maxilla long, tip sharply pointed, reaching almost to edge of gill cover; gill cover canals of walkeri-type. Anal fin moderate, its origin under or a little before midpoint of dorsal fin base. A narrow silver stripe along flank.
身體中等細長的, 但是略微扁長形的。 吻非常短的, 大約 3/4 眼直徑; 顎骨長的, 頂端非常尖的, 幾乎到鰓蓋的邊緣; walkeri 的鰓蓋運河-類型。 臀鰭中等的, 它的起源在或下面稍微在背鰭基底的中點之前。 一條狹窄的銀色斑紋沿著側面。
Pelagic (Ref. 96339). A schooling species occurring in coastal waters, most often in muddy estuaries in fully salt, brackish or apparently freshwater, penetrating only a few kilometers up rivers. Maturing females were caught in January, August and October in the Gulf of Nicoya, Costa Rica, suggesting a protracted spawning season. The eggs are oval. TL = 1.219 SL.
出現在沿岸水域的一個群游性魚種, 大部分常見於泥濘的河口中在完全含鹽﹐半鹹淡的或顯然淡水, 只穿透河川內幾公里。 成熟雌性於一月 , 在被意味著的哥斯大黎加的尼哥亞灣的八月與十月捕獲產卵季節很長。 卵是橢圓形的。 TL=1.219 SL。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Spawn in school (Ref. 205).東太平洋: 加州灣的中央部份 (Rio Yaqui, 墨西哥) 到祕魯的惠夜基灣。
Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (Suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/2):305-579. Rome: FAO. (Ref. 189)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 30 April 2008
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Estimates based on models
Preferred temperature (Ref.
123201): 23.6 - 28.5, mean 26.9 °C (based on 44 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00234 - 0.01125), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
