Alosa alosa, Allis shad : fisheries, gamefish

Alosa alosa (Linnaeus, 1758)

Allis shad
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Alosa alosa   AquaMaps   Data sources: GBIF OBIS
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分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Alosidae (Shads and Sardines)
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: Linnaeus.

環境:環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学

; 新鮮な水; 汽水性の pelagic-neritic; 昇流魚 (Ref. 89642); 深さの範囲 10 - 400 m (Ref. 10536). Temperate; 61°N - 20°N, 17°W - 22°E

分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri

Northeast Atlantic: Norway to Morocco, the British Isles, Germany, the Netherlands, Belgium, France, Spain and Portugal; known to enter the southern Baltic Sea and western Mediterranean Sea at least until the Ebro River in Spain.

初回成熟時の長さ / サイズ / 重さ / 年齢

成熟: Lm 47.8, range 45 - 50 cm
Max length : 69.0 cm TL オス/雌雄の選別がない; (Ref. 10536); 83.0 cm TL (female); common length : 40.0 cm TL オス/雌雄の選別がない; (Ref. 2945); common length :70 cm TL (female); 最大公表体重: 4.0 kg (Ref. 30578); 最大記録サイズ: 10 年 (Ref. 10536)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 0; 背鰭 (合計) : 18 - 21; 肛門の骨: 0; 臀鰭: 20 - 27; 脊つい: 57 - 58. Diagnosis: Body somewhat compressed, fairly deep with depth at pectoral fin more than head length, scutes apparent along belly (Ref. 188, 51442). Upper jaw with a distinct median notch, lower jaw fitting into it; no teeth on palatine and vomer; gillrakers long, thin and numerous, a total of 85 to 155 on first arch, longer than gill filaments (Ref. 188, 6683, 59043). A dark spot posterior to gill opening, but sometimes absent, sometimes followed by several small blotches (Ref. 188, 59043). Alosa alosa resembles Alosa fallax, which has fewer and shorter gillrakers and 7 or 8 black spots along flank (Ref. 188).
Body shape (shape guide): fusiform / normal; Cross section: compressed.

生物学     用語集 (例 epibenthic)

Amphihaline species, schooling and strongly migratory, penetrating far up rivers but not into small tributaries (Refs. 188, 59043). Adults are usually found in open waters along the coast (Ref. 51442). In freshwater, they inhabit major rivers but may also enter tributaries, if water temperature is equal to or is warmer than the main river (Ref. 188, 10536). Known lake populations from Morocco and Portugal need access to rivers to spawn (Refs. 10536, 89647, 89648). Larvae and small juveniles inhabit deep slow-flowing areas of rivers (Ref. 89649), some swimming upstream in late summer and autumn (Ref. 10536). Juveniles (up to 1+ years) are usually found near estuaries or river mouths (Refs. 10536, 59043), possibly making vertical diurnal movements synchronized with the tides; they remain in estuaries for over one year (Ref. 89630). Adults primarily feed on a wide range of planktonic crustaceans; larger individuals feed on small schooling fishes (Ref. 188, 51442, 59043). Juveniles in freshwater prey on insect larvae. Females in European rivers commonly reach 70 cm total length (Ref. 10536). Females grow faster and are always larger than males of the same age (Ref. 10536). Less common than Alosa fallax but both have suffered from pollution and weirs or other obstructions (Ref. 188). It has been suggested that members of the genus Alosa are hearing specialists with the American shad (Alosa sapidissima) having been found to detect and respond to sounds up to at least 180 kHz (Ref. 89631). This may aid in predator avoidance (e.g. cetaceans) (Ref. 89632). Hybridization with the twaite shad (Alosa fallax) has been reported from the Rhine (Ref. 89633) as well as from rivers in France and Algeria (Ref. 10536). Shad hybrids may reproduce (Ref. 27567). Marketed fresh and frozen; eaten sautéed, broiled, fried and baked (Ref. 9988).

ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

Semelparous (Ref. 88808). Adults in the sea begin to move towards the coast in February and congregate near or in estuaries (Ref. 10536). They ascend rivers in April and May when water temperature is 9-12 °C, peaking at 13-16 °C. Adults may migrate up to 700 km from the sea into major rivers and occasionally into the largest tributaries of these rivers to spawn (Ref. 10536). Males migrate upriver at 3-9 years; females first reproduce 1-3 years later than males. Gametogenesis occurs during spawning migration. Males arrive first in the upper reaches and occupy appropriate spawning sites, with females arriving 1-2 weeks later (Ref. 10536). Spawning sites are usually shallow areas (<1.5 m depth) of rivers near a confluence with strong currents and clean gravel bottoms (Refs. 188, 10536, 59043). Spawning occurs at night (over several nights), in large and very noisy schools that form near the surface.when water temperature reaches at least 15 °C and is believed to be optimal between 22-24 °C. (Ref. 88171). Coupling happens side by side, thrashing caudal fins on water surface and swimming in circles while expulsing eggs and sperms in the surrounding water. Eggs are fertilized in mid-water and then sink to the gravel bottom. Eggs hatch after 4-8 days (22-24 °C) (Ref. 89630). After spawning, adults return to the sea but many die before reaching it (Ref. 188, 51442, 59043). Only 5-6 % of the adults spawn more than once in their lifetime (Ref. 89655). After 3-4 months juveniles (8-12 cm length) move towards the sea until mature (Ref. 10536). Individual fish apparently return to their natal spawning site (Ref. 59043). Also Refs. 5744, 5745.

主な参考文献 参考文献のアップロード | 参考文献 | コーディネーター | 協力者

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)

IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))

  絶滅寸前の危機的状況 (CR) (A2acde); Date assessed: 16 March 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





人間の用途

水産業: 少数商業の; ゲームフィッシュ: はい
FAO - 水産業: landings search; Publication: search | FishSource | 私達の周りの海

より多くの情報

養殖生態
食料品(獲物)
餌の構成
摂食量
食料配給
捕食動物
生態学
生態学
ライフサイクル
繁殖
成熟
成熟度/エラ
生産力
放精
産卵群

卵の開発
幼生
幼生の動力
解剖学
カマ

オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性(LC50)
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
人間関係
養殖システム
水産養殖の紹介
緊張
シガテラ症例
切手、コイン、その他
アウトリーチ
協力者
参考文献
参考文献

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モデルに基づく推定値

系統多様性指数
(参照 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00631 (0.00518 - 0.00768), b=3.09 (3.05 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245).
栄養段階
(参照 69278)
3.0   ±0.2 se; based on diet studies.
回復力
(参照 120179)
手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.19-0.29; tm=3.5; tmax=10).
漁業の脆弱性
(Ref. 59153)
Moderate vulnerability (36 of 100). 🛈
気候脆弱性
(Ref. 125649)
Moderate to high vulnerability (47 of 100). 🛈
価格帯
(Ref. 80766)
Low.
栄養素
(Ref. 124155)
Calcium = 11.2 [4.4, 59.5] mg/100g; Iron = 0.629 [0.269, 1.334] mg/100g; Protein = 19.1 [16.5, 21.8] %; Omega3 = 1.27 [0.69, 2.44] g/100g; Selenium = 15.2 [7.4, 29.9] μg/100g; VitaminA = 15.2 [3.5, 65.1] μg/100g; Zinc = 0.323 [0.203, 0.541] mg/100g (wet weight); based on nutrient studies.