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Synodontis zambezensis Peters, 1852

Plain squeaker
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Synodontis zambezensis
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South Africa country information

Common names: Brown squeaker, Bruin skreeubaber, Bruin-skreeubaber
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in the Pongola River (=Pongolo) (Ref. 13332).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Gosse, J.-P., 1986
National Database:

Common names from other countries

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

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) 倒立鯰科 (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
  More on author: Peters.

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

; 淡水 底中水層性.   熱帶; 13°S - 27°S

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

Africa: middle and lower Zambezi south to the Pongolo system (Ref. 7248, 52193). Absent from upper Save-Runde system (Ref. 7248, 52193). Also reported from the Luangwe (upper Congo River basin) (Ref. 58032, 82238). Reports from the Angolan Congo basin (Ref. 11970) refer to Synodontis macropuncatus (Ref. 75786).
非洲: 澎哥洛河,凌波波河, Pungwe 與尚比西河流域; 魯誇湖; Luangwe 河。 救援-Runde 的系統上游沒有出現。 (參考文獻 7248)

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 15.0  range ? - ? cm
Max length : 43.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 52193); 最大體重: 820.00 g (Ref. 52193)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 1; 背的軟條 (總數) : 7; 臀棘: 0; 臀鰭軟條: 11 - 16.

生物學特性     字彙 (例如 epibenthic)

The spines are said to be poisonous (Ref. 4537). Found in pools and slow flowing reaches of perennial and seasonal rivers; prefers riverine habitats to floodplains; shelters in holes or crevices or on the underside of logs, frequently in an upside-down position (Ref. 52193). Active at night, feeds on detritus and plant matter such as seeds as well as small invertebrates like insects and snails, and will scavenge readily (Ref. 52193). Breeds in summer during rainy periods (Ref. 7248, 52193). Oviparous (Ref. 205).

棘據說是有毒的。 (參考文獻 4537) 出現於不斷而季節性河的水池與緩慢流動範圍。 喜歡到洪泛區的河中棲地。 在洞或裂隙的庇護所或在圓木的下面上, 時常採取顛倒的姿勢。 活躍的在晚上, 吃碎屑與植物例如種子以及像昆蟲與蝸牛的小型無脊椎動物。 意志輕易地清理。 卵生的.(參考文獻 205) 繁殖於夏天。 (參考文獻 7248)

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

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).非洲: 澎哥洛河,凌波波河, Pungwe 與尚比西河流域; 魯誇湖; Luangwe 河。 救援-Runde 的系統上游沒有出現。 (參考文獻 7248)

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

Gosse, J.-P., 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3202)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 02 October 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  有毒的 (Ref. 4537)




人類使用

漁業: 低經濟; 游釣魚種: 是的
FAO(Publication : search) | FishSource |

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Trophic ecology
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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=0.01047 (0.00491 - 0.02235), b=2.99 (2.80 - 3.18), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.7   ±0.34 se; based on food items.
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).
價格種類 (Ref. 80766):   Unknown.