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Clupeiformes (Herrings) >
Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Amblygaster: Greek, amblys = darkness + Greek, gaster = stomach (Ref. 45335).
More on author: Walbaum.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; saumâtre récifal; profondeur 10 - 75 m (Ref. 12260). Tropical; 35°N - 28°S, 31°E - 178°W (Ref. 188)
Indo-West Pacific: Red Sea and Mozambique to the Philippines, north to Taiwan and Okinawa (Japan), south to New Guinea, the Arafura Sea (Ref. 9819), northern Australia, and Fiji.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 15.0  range ? - ? cm
Max length : 27.0 cm SL mâle / non sexé; (Ref. 54980); common length : 20.0 cm SL mâle / non sexé; (Ref. 188); âge max. reporté: 8 années (Ref. 1488)
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 13 - 21; Épines anales: 0; Rayons mous anaux: 12 - 23. Diagnosis: Body slender, belly rather rounded, scutes not prominent (Ref. 188). It is distinguished from Amblygaster clupeoides and A. leiogaster by the presence of a series of 10-20 gold, in life, or black, on preservation, spots down the flank, but sometimes missing; also, lower gillrakers 33-43, while 26-33 in the other two species (Ref. 188). Sardinops species are also round-bodied and have spots on the flanks, but possess bony radiating striae on the gill cover; round-bodied Sardinella species have one unbranched and 8 branched pelvic finrays while Amblygaster sirm has one unbranched and 7 branched pelvic finrays, and more than 100 gillrakers are present in Sardinella species, also no spots (Ref. 188). Last 2 anal-fin rays enlarged (Ref. 117228).
Body shape (shape guide): fusiform / normal; Cross section: oval.
A pelagic, schooling species occurring in coastal waters and lagoons (Ref. 188, 53568), at depths of 1-75m (Ref. 82332). In Panggang Island, Indonesia it was recorded in temperatures of 28.5-29.8°C and salinities of 31.6-32.3 ppt (Ref. 823). It feeds mainly on copepods, nauplii and zoea larvae, larval bivalves and gastropods, as well as Peridinium and Ceratium; juveniles also on phytoplankton (Ref. 188). Used as bait in the tuna fishery.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Spawn in school (Ref. 205).
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; appât: usually
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00813 (0.00713 - 0.00926), b=3.06 (3.02 - 3.10), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Niveau trophique (Réf. 69278) |
2.9 ±0.30 se; based on food items. |
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Generation time |
1.2 (0.9 - 1.9) years. Estimated as median ln(3)/K based on 20 growth studies. |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (K=0.37-3.74; tm=1; tmax=8; Fec > 10,000). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (16 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Low.
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Nutriments (Ref. 124155) |
Calcium = 104 [31, 407] mg/100g; Iron = 1.75 [0.62, 4.11] mg/100g; Protein = 20.6 [17.9, 22.9] %; Omega3 = 0.277 [0.131, 0.610] g/100g; Selenium = 69.1 [23.0, 232.3] μg/100g; VitaminA = 39.8 [9.6, 176.1] μg/100g; Zinc = 1.67 [0.84, 3.13] mg/100g (wet weight); based on nutrient studies. |