Environment: milieu / climate zone / تغييرات عمق / distribution range
بوم شناسي
دريايي; آب شيرين; لب شور pelagic-neritic; تغييرات عمق 0 - 50 m (Ref. 189). Tropical; 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.
Size / Weight / سن
بلوغ: Lm ? range ? - ? cm
Max length : 8.9 cm TL جنس نر / بدون خواص جنسي; (Ref. 96339)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 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.
Body shape (shape guide): elongated; Cross section: oval.
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.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Spawn in school (Ref. 205).
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-1)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (مرجع
123201): 23.6 - 28.5, mean 26.9 °C (based on 44 cells).
Phylogenetic diversity index (مرجع
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).
Trophic level (مرجع
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
جهندگی (مرجع
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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