محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
دريايي pelagic-neritic; اقیانوس رو; تغييرات عمق 3 - 80 m. Subtropical; 13°C - 23°C (Ref. 6); 5°S - 43°S, 82°W - 69°W (Ref. 54434)
Southeast Pacific: Aguja Point, Peru to Chiloé, Chile (distribution dependent on the coastal extent of the Peru Current).
طول در اولین بلوغ / اندازه / وزن / سن
بلوغ: Lm 12.0, range 10 - 12.5 cm
Max length : 20.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 189); common length : 14.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 5504); بيشينه سن گزارش شده: 3.00 سال ها (Ref. 189)
خارهاي باله پشتي (کل) : 0; خارهاي باله مخرجي: 0. Body elongate, slender, and rounded in cross section; snout long and prominent; lower branch of first gill arch with 34 to 49 gill rakers; anal fin with fewer than 22 rays, located behind dorsal fin base; body shiny blue or green (Ref. 55763). There is a silver stripe along flank in juveniles which disappears with age. The high number of gill rakers distinguishes it from all Pacific species of Anchoa.
Body shape (shape guide): elongated; Cross section: oval.
Adults occur mainly within 80 km of coast, forming huge schools, chiefly in surface waters. Are filter-feeders entirely dependent on the rich plankton of the Peruvian Current. In some studies, diatoms constituted as much as 98% of the diet. Large populations of guano birds and pelicans also depend on this fish (Ref. 9988). Utilized as fish meal and oil (Ref. 9988).
Eggs ellipsoidal.
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
ماهي گيري – شيلات: با ارزش تجاري بالا
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
دمای ترجیحی (مرجع
123201): 17 - 20.8, mean 19.7 °C (based on 10 cells).
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00361 - 0.00579), b=3.13 (3.09 - 3.17), in cm total length, based on LWR estimates for this species (Ref.
93245).
سطح تروفیک (مرجع
69278): 2.9 ±0.38 se; based on food items.
Generation time: 1.3 (1.1 - 1.3) years. Estimated as median ln(3)/K based on 60
growth studies.
جهندگی (مرجع
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (K=0.6-0.9; tm=1; tmax=3; batch fecundity > 10,000).
Prior r = 0.83, 95% CL = 0.54 - 1.24, Based on 3 full stock assessments.
آسیبپذیری ماهیگیری (Ref.
59153): Low vulnerability (17 of 100).
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آسیبپذیری اقلیمی (Ref.
125649): Moderate vulnerability (42 of 100).
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مواد مغذی (Ref.
124155): Calcium = 233 [104, 574] mg/100g; Iron = 1.55 [0.73, 3.65] mg/100g; Protein = 18.7 [17.4, 20.0] %; Omega3 = 0.764 [0.444, 1.331] g/100g; Selenium = 16.8 [7.9, 39.6] μg/100g; VitaminA = 11 [2, 47] μg/100g; Zinc = 1.18 [0.73, 1.89] mg/100g (wet weight);