Alosa braschnikowi (Borodin, 1904)
Caspian marine shad
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> 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).
Eponymy: Vladimir Konstantinovich Bražnikov (or Braschnikow) (1870–1921) was a Russian zoologist, ichthyologist and entomologist with an interest in Diptera who lived in Tokyo for many years. [...] (Ref. 128868), visit book page.
More on author: Borodin.
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).
Eponymy: Vladimir Konstantinovich Bražnikov (or Braschnikow) (1870–1921) was a Russian zoologist, ichthyologist and entomologist with an interest in Diptera who lived in Tokyo for many years. [...] (Ref. 128868), visit book page.
More on author: Borodin.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 汽水性の 外洋の; 海洋回遊性. Temperate; 48°N - 35°N, 45°E - 56°E (Ref. 188)
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
Former USSR and Asia: Caspian Sea.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm ?, range 20 - ? cm
Max length : 50.0 cm SL オス/雌雄の選別がない; (Ref. 188); common length : 30.0 cm SL オス/雌雄の選別がない; (Ref. 188)
Max length : 50.0 cm SL オス/雌雄の選別がない; (Ref. 188); common length : 30.0 cm SL オス/雌雄の選別がない; (Ref. 188)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 肛門の骨: 0. Body fairly elongate, more `herring-like' than `shad-like'. gill rakers thick and coarse, shorter, equal to or a little longer than gill filaments, either straight or curved, pointed or blunt, occasionally even bifurcated at tips. Teeth well developed in both jaws. Other Caspian shads have deeper, more shad-like bodies.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Occurs in brackish water and non-anadromous, but strongly migratory. Feeds on small clupeids, gobies, atherines, also crustaceans and occasionally insects and mollusks. Spawning patterns among the subspecies vary but occur mostly in spring and summer after an inshore migration and movement northward.
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Various spawning patterns among the subspecies (mostly in spring and summer after an inshore migration and movement northward).
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)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 高い商業の
FAO - Publication: search | FishSource |
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毒性（LC50）
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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=0.00708 (0.00472 - 0.01062), b=3.04 (2.92 - 3.16), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.9 ±0.4 se; based on diet studies.
Generation time: 3.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
回復力 (参照 120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).