Leptodoras linnelli

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Leptodoras linnelli Eigenmann, 1912

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Leptodoras linnelli
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Doradidae (Thorny catfishes) > Doradinae
Etymology: Leptodoras: Greek, leptos = thin + Greek, doras = skin (Ref. 45335).
More on author: Eigenmann.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の; pH range: 5.8 - 7.0; dH range: ? - 18. Tropical; 18°C - 22°C (Ref. 2060)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

South America: Upper Orinoco (rios Ventuari and Mavaca) and Casiquiare River basin in Venezuela; Atlantic Coast drainages of the Guianas and northern Brazil such as Essequibo, Demerara and Araguari); the rios Uatumã, Tacutu and Demini in Brazil (Ref. 56896). Recently collected from the rio Tiquié basin (right bank tributary of the upper rio Negro) in the Amazonas State and from the upper rio Aripuaña (tributary of the rio Madeira) in Mato Grosso State, Brazil, extending the known distribution of this species into the western limits of the Brazilian Shield (Ref. 79526).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 23.0 cm SL オス/雌雄の選別がない; (Ref. 37054)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 1; 背鰭 (合計): 6; 臀鰭: 12 - 16. Upper labial extension very elongate, straight to weakly curved medially and nearly uniform in width with a bluntly rounded tip. Differs further from all Leptodoras except L. acipenserinus by having an adipose fin extending anteriorly as a low thin ridge to a point midway between the anterior insertion of the adipose fin and the posterior insertion of the dorsal fin. Distinguished from L. acipenserinus by a number of characters including a relatively longer predorsal distance (35.5-38.7% SL), inner flap of gill opening incomplete, lower sum of midlateral plates (74-81), anal-fin shape (tip of longest branched ray falls short of vertical through tip of last branched ray in extended anal fin and is more or less even with vertical through base of last ray; line defined by tips angled anteriorly, forming a 45-90° angle with long axis of body), pectoral-fin spine length 19.9-26.2% of SL and pectoral-fin spine dentation with teeth strongly retrorse along majority of posterior margin, becoming less retrorse distally, size relatively uniform along distal half, last denticulation usually subterminal (Ref. 56896).

生物学     用語集 (例 epibenthic)

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Ferraris, Jr., Carl J. | 協力者

Sabaj, M.H. and C.J. Ferraris Jr., 2003. Doradidae (Thorny catfishes). p. 456-469. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 37054)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 30 July 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

FAO - Publication: search | FishSource |

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シガテラ(食中毒の名前)
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Otoliths

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00437 - 0.01992), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  2.8   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (18 of 100).