محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
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.
اندازه / وزن / 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.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | 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 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
دمای ترجیحی (مرجع
123201): 23.6 - 28.5, mean 26.9 °C (based on 44 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00231 - 0.01089), b=3.15 (2.98 - 3.32), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
سطح تروفیک (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.).
آسیبپذیری ماهیگیری (Ref.
59153): Low vulnerability (10 of 100).
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