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Tetragonopterus georgiae (Géry, 1965)

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drawing shows typical species in Characidae.


Suriname country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from the Coppename (Rechter, Linker, Midden and main) River and Adampada Creek (Ref. 59052). Type locality: middle Mana River, between 'Saut Chien' and 'Saut Topi-topi' (Ref. 12965).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ns.html
National Fisheries Authority: http://www.caricom-fisheries.com/suriname
Occurrences: Occurrences Point map
Main Ref: Alonso, L.E. and H.J. Berrenstein, 2006
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Characiformes (Characins) 脂鯉目 (Characins) > Characidae (Characins; tetras) 脂鯉科 (Characins; tetras) > Tetragonopterinae
Etymology: Tetragonopterus: Name from Greek words: 'Tetra' meaning four; 'gonia' meaning angle; 'pteron' for fin; referring to the evident tetragonal shape of the body (Ref. 124043);  georgiae: Named in honor of the wife of the describer (Ref. 27188).
  More on author: Géry.

Issue
See Géry (1977: 446) for identification key.

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

; 淡水 大洋性.   熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

South America: Sipaliwini, Maroni, Mana, Sinamary, Comté, Approuagua, and Oyapock River basins.
南美洲。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 12.1 cm SL 雄魚/尚未辨別雌雄; (Ref. 101566)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背的軟條 (總數) : 9; 臀鰭軟條: 23 - 27; 脊椎骨: 29. This species is distinguished from its congeners, except T. rarus, by the number of scale rows between lateral line and pelvic fin origin 4.5-5.5 (vs. 3.5 scale rows); differs from T. rarus by the longitudinal dark stripes on the trunk which is absent (vs. present); differs from T. anostomus, T. denticulatus, T. kuluene, T. juruena by the principal teeth in dentary 4 (vs. 5-6) with larger and more robust teeth (vs. thinner and sharper teeth); differs from T. anostomus, T. kuluene by the conspicuous humeral marks 2 (vs. 1 and inconspicuous); differs from T. anostomus by the mouth being terminal (vs. subsuperior); differs from T. anostomus, T. araguaiensis with gill rakers on the lower limb of the first gill arch 10-12 (vs. 17-20) and upper limb 7-8 (vs. 10-12); differs from T. argenteus by the predorsal scales 8 (vs. 11-17), and from T. carvalhoi by having a rounded dark mark on the caudal peduncle (vs. a lozenge-shaped); differs from T. ommatus by teeth on maxilla 1-4 (vs. 7-8) and with a dark mark centered on caudal peduncle (vs. mark limited to the posterior portion of the caudal peduncle) (Ref. 124043).

生物學特性     字彙 (例如 epibenthic)

Occupies the counter current zones of rivers where it hides under the rocks. It is constantly on the look out for food items that fall into the water (Ref. 12225).

佔領河的逆流區在岩石下面他躲在那裡。 不斷地它是那之上尋找掉入水中的食物組成.(參考文獻 12225)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

南美洲。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Silva, G.S.C., B.F. Melo, C. Oliveira and R.C. Benine, 2016. Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species. Zootaxa 4200(1):1-46. (Ref. 124043)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 01 March 2007

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

FAO(Publication : search) | FishSource |

更多資訊

Trophic ecology
食物相
Diet compositions
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參考文獻

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網路資源

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01030 - 0.04649), b=3.01 (2.82 - 3.20), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).