分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Clupeiformes (Herrings)
鯡形目 (Herrings) >
Pristigasteridae (Pristigasterids)
鋸腹鰳科 (Pristigasterids)
Etymology: Opisthopterus: Greek, opisthe = behind + Greek, pteron = wing. Fin (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水. 熱帶; 5°N - 0°, 82°W - 75°W (Ref. 188)
Eastern Pacific: known only from the Río Vaqueira, northwest Ecuador.
東太平洋: 已知只來自 Rio Vaqueira ，厄瓜多西北部了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 20.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 188)
背棘 (總數) : 0; 臀棘: 0; 臀鰭軟條: 50. Belly with about 29 scutes. Lower jaw projecting, mouth pointing obliquely upward; no hypo-maxilla. Pectoral fin a little longer than head; dorsal fin origin nearer to caudal fin base than to vertical from pectoral fin base by about 2 eye diameters (or behind midpoint of body by about 3 eye diameters); anal fin long, its origin much nearer to snout tip than to caudal fin base.
腹面有大約 29個鱗甲。 下頜突出的, 嘴朝向斜上方; 沒有皮下注射-顎骨。 胸鰭稍微長度超過頭部; 背鰭起點較接近尾鰭基底超過到垂直的從胸鰭基底大約 2 眼直徑;(或身體的中點後面大約 3 眼直徑) 臀鰭長的, 它的起源很多超過到尾鰭基底較接近吻頂端。
Either living in rivers or entering rivers from the sea (Ref. 9336).
或生活於河或從海洋進入河川.(參考文獻 9336)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
東太平洋: 已知只來自 Rio Vaqueira ，厄瓜多西北部了。
Whitehead, P.J.P., 1985. 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(7/1):1-303. Rome: FAO. (Ref. 188)
人類使用
漁業: 自給性漁業
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00386 - 0.01791), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.6 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 (15 of 100).
