Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
marinhas pelagic-neritic; oceanódromo; intervalo de profundidade 3 - 80 m. Subtropical; 13°C - 23°C (Ref. 6); 1°N - 44°S, 110°W - 70°W
Southeast Pacific: from Galapagos to Aguja Point, Peru, south to Easter Island and Chiloé, Chile.
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturidade: Lm 12.0, range 10 - 12.5 cm
Max length : 20.0 cm SL macho/indeterminado; (Ref. 189); common length : 14.0 cm TL macho/indeterminado; (Ref. 5504); idade máx. registrada: 3.00 anos (Ref. 189)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Espinhos anais: 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)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: altamente comercial
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00457 (0.00362 - 0.00577), b=3.13 (3.09 - 3.17), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Nível Trófico (Ref. 69278) |
2.9 ±0.38 se; based on food items. |
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Generation time |
1.3 (1.1 - 1.3) years. Estimated as median ln(3)/K based on 60 growth studies. |
Resiliência (Ref. 120179) |
Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.6-0.9; tm=1; tmax=3; batch fecundity > 10,000). |
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Rate of population increase |
Prior r = 0.83, 95% CL = 0.54 - 1.24, Based on 3 full stock assessments. |
Vulnerabilidade da pesca (Ref. 59153) |
Low vulnerability (17 of 100). 🛈 |
Vulnerabilidade climática (Ref. 125649) |
Moderate vulnerability (42 of 100). 🛈 |
Categoria de preço (Ref. 80766) |
Low.
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Nutrientes (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); |