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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.
Environment: milieu / climate zone / пределы глубины / distribution range
экология
морской; солоноватоводный ассоциированный с рифами; пределы глубины 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.
Length at first maturity / Size / Вес / Возраст
половая зрелость: Lm 15.0 range ? - ? cm
Max length : 27.0 cm SL самец/пол неопределен; (Ref. 54980); common length : 20.0 cm SL самец/пол неопределен; (Ref. 188); наибольший возраст (опубликованны данные): 8 годы (Ref. 1488)
колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 13 - 21; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 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.
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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-1)
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий; наживка: usually
дополнительная информация
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Специальные отчеты
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Estimates based on models
Preferred temperature (ссылка
123201): 26.2 - 29.1, mean 28.2 °C (based on 1152 cells).
Phylogenetic diversity index (ссылка
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00727 - 0.00952), b=3.06 (3.02 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (ссылка
69278): 2.9 ±0.30 se; based on food items.
Generation time: 1.2 (0.9 - 1.9) years. Estimated as median ln(3)/K based on 20
growth studies.
устойчивость к внешним воздействиям (ссылка
120179): высокий, минимальное время удвоения популяции до 15 месяцев (K=0.37-3.74; tm=1; tmax=8; Fec > 10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
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Nutrients (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.
