分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
(Herrings) > Clupeidae
(Herrings, shads, sardines, menhadens) > Alosinae
Etymology: Alosa: Latin, alausa = a fish cited by Ausonius and Latin, halec = pickle, dealing with the Greek word hals = salt; it is also the old Saxon name for shad = "alli" ; 1591 (Ref. 45335). More on author: Mitchill.
Environment: milieu / climate zone / depth range / distribution range
; 海; 新鮮な水; 汽水性の; 昇流魚 (Ref. 51243). Temperate; 46°N - 25°N, 82°W - 66°W (Ref. 117467)
Western Atlantic: along the coast from Maine to the St. John's River, Florida, USA (Ref. 188). Possibly in Campobello Island, New New Brunswick, Canada (Ref. 86798).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 32.0  range ? - ? cm
Max length : 60.0 cm SL オス/雌雄の選別がない; (Ref. 188); common length : 34.0 cm SL オス/雌雄の選別がない; (Ref. 188)
背面の脊椎 (合計): 0; 背鰭 (合計): 15-20; 肛門の骨 0; 臀鰭: 19 - 23; 脊つい: 53 - 55. Belly with distinct keel of scutes. Lower jaw very prominent, but not rising steeply within mouth; teeth reduced or in upper jaw absent in fishes over 23 cm standard length. A dark spot on shoulder, several obscure dark spots along flank (sometimes missing). Closely resembles A. chrysochloris which has stronger jaw teeth, no shoulder spot and the body depth less than head length (Ref. 188). Silvery, with a dark grayish green back (Ref. 7251).
In freshwater habitat, this species occurs in open water of large rivers (Ref. 86798). Schools of adults are found in marine waters, along the coast; also estuaries, tidal rivers and tributaries during late spring and early summer (Ref. 4639). Juveniles tend to leave nursery areas during summer (Ref. 4639). Feeds on small fishes, also squid, small crabs and other crustaceans, as well as fish eggs. Spawn in tidal freshwater (Patuxent River, Chesapeake Bay in May) (Ref. 188), and return to the sea shortly after (Ref. 4639). Parasites found are nematodes, cestodes and trematodes (Ref. 37032).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
CITES (Ref. 115941)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 8.4 - 25.5, mean 14 (based on 238 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278
): 4.1 ±0.58 se; Based on food items.
回復力 (Ref. 69278
): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.3).
弱み (Ref. 59153
): Moderate vulnerability (41 of 100) .