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Australoheros scitulus (Říčan & Kullander, 2003)

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Australoheros scitulus
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Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from the State of Rio Grande do Sul.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Říčan, O. and S.O. Kullander, 2003
National Database:

Common names from other countries

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

Teleostei > Cichliformes (Cichlids, convict blennies) 鱸形目 (Cichlids, convict blennies) > Cichlidae (Cichlids) 慈鯛科魚類 (Cichlids) > Cichlinae
Etymology: Australoheros: From the Latin word 'australis' meaning southern, and the name Heros, after the nominotypic genus of the Heroini tribe. Tribe.
  More on authors: Říčan & Kullander.

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: Río Rosario drainage in the Río de La Plata region of Uruguay, and from the lower Río Uruguay tributaries in Argentina, Uruguay and Brazil.
南美洲: 在烏拉圭的拉布拉塔河區域中的 Rio 羅沙略流域, 與從在阿根廷,烏拉圭與巴西的下面 Rio 烏拉圭支流。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 116916)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 16 - 18; 背的軟條 (總數) : 7 - 10; 臀棘: 8 - 9; 臀鰭軟條: 6 - 8; 脊椎骨: 26 - 27. Midlateral stripe prominent, vertical bars less intensive; black spots in dorsal, anal, and caudal fin; dark spots on the opercle and anterior flank scales. Distinguished from both C. facetum and C. tembe by having 8-9 anal-fin spines [vs. 6-7 (rarely 5 or 8), 5-7, respectively], 13-14 anal pterygiophores (vs. 12-13, 11-12, respectively), modally 17 dorsal-fin spines (vs. 16), and modally 6 gill rakers on first ceratobranchial (vs. 8, 7-8, respectively). Further distinguished from 'C.' facetum in having 14 caudal vertebrae (vs. 13) and from 'C'. tembe by a shorter caudal peduncle including only one or no vertebral centrum (vs. 3). Jaw teeth lack the second cusp (also in tembe vs. present in facetum (Ref. 51414).
側面中央的斑紋突出的, 縱帶比較不密集; 在背鰭、臀鰭 , 與尾鰭中的黑色斑點; 在鰓蓋與前面的側面鱗片上的深色的斑點。 與 C. facetum C. tembe 藉著具有 8-9根臀鰭棘區分了 [vs.6-7(很少地 5 或 8), 5-7, 分別地],13-14個肛門的支鰭骨 (vs.12-13,11-12, 分別地), 典型地 17根背鰭棘 (vs.16), 與典型地在第一個角鰓骨上的 6個鰓耙.(vs.8,7-8, 分別地) 進一步與 區分了'C.' facetum 有 14個尾部的脊椎骨 (vs.13) 與從 'C'. 包括只有一個或沒有椎骨的椎體的一個較短的尾柄的 tembe.(vs.3) 頜齒缺乏第二個尖頭 (也在 tembe 中 vs. 出現在 facetum.(參考文獻 51414)

生物學特性     字彙 (例如 epibenthic)

Found in a large stream about 10 meters wide, the water mostly shallow, less than 1 meter deep; bottom of mixed rock, sand, and gravel, providing riffles; slightly brownish and turbid. Radiographed specimens reveal considerable amounts of small shells in the guts and intestines. The stout lower pharyngeal bone consistent with a snail diet (Ref. 51414).

發現於一個大的水流大約 10 公尺寬的了, 深地大部份水淺又少於 1 公尺處的水; 混合岩石,沙子與礫石的底部, 提供急流; 些微褐色而混濁的。 拍 X 光線照片標本在消化道與腸顯示相當多量的小貝殼。 矮胖的低咽骨一致的具有一個蝸牛食性.(參考文獻 51414)

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

南美洲: 在烏拉圭的拉布拉塔河區域中的 Rio 羅沙略流域, 與從在阿根廷,烏拉圭與巴西的下面 Rio 烏拉圭支流。

主要參考資料 Upload your references | 參考文獻 | 合作者 : Kullander, Sven O. | 合作者

Říčan, O. and S.O. Kullander, 2003. `Cichlasoma' scitulum: a new species of cichlid fish from the Río de La Plata region in Argentina, Brazil, and Uruguay. Copeia 2003(4):794-802. (Ref. 51414)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 04 November 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




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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=0.03236 (0.01760 - 0.05951), b=3.05 (2.89 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming Fec<1000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).