Schilbe grenfelli : fisheries

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Schilbe grenfelli (Boulenger, 1900)

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Schilbe grenfelli
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Actinopterygii 輻鰭魚綱 (條鰭魚) > Siluriformes (Catfish) 鯰形目 (Catfish) > Schilbeidae (Schilbid catfishes) 北非鯰科 (Schilbid catfishes)
Etymology: grenfelli: Referring to the type locality of the species, Boma, Lower Zaire River (Ref. 43912).  More on author: Boulenger.

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

; 淡水 居於水底的.   熱帶; 23°C - 26°C (Ref. 12468); 5°N - 0°N

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Africa: lower, middle and upper Congo River basin, including Pool Malebo (= Stanley Pool); Ogooué and Nyanga basins in Gabon; Ntem-Campo, Nyong and Lokoundje basins in Cameroon (Ref. 43912). Also in the Mitemboni River (Gabon-Equatorial Guinea border) and lower Nkomi River basin (Gabon)(Ref. 81643). Reports from the Lali River (upper Kouilou basin) in Republic of Congo or from the Chad basin are based on misidentified specimens; presence in the Ruzisi unlikely, based on a single specimen that is probably mislabelled (Ref. 43912).
非洲: 剛果河流域，奧克維河， Nyanga ， Ntem 與草原河。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 50.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 81643)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 1. Diagnosis: adipose fin present (Ref. 43912, 81643) and fully developed (Ref. 81643). Anterior nostrils closer to each other than the posterior pair; nasal barbel not reaching beyond the posterior border of the eye; inner side of pectoral spine weakly serrated; snout reaching beyond lower jaw; head rounded (Ref. 43912, 81643).

生物學特性     字彙 (例如 epibenthic)

Omnivorous or predominantly carnivorous, feeding on fruits, leaves, grains, insect larvae and nymphs, and small fish; very voracious; juveniles found in floodplains during the rainy season, often hidden under floating trunks of trees which seems a favorite place for juvenile Schilbe and numerous other fish larvae; active swimmer, especially during the night, probably resting near the bottom during daytime (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Important species in fishery terms (Ref. 78218). Flesh of this fish very tasty, its price rather elevated (Ref. 43912).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Distinct pairing (Ref. 205).非洲: 剛果河流域，奧克維河， Nyanga ， Ntem 與草原河。

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

De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)

IUCN 瀕危狀態 (Ref. 120744)

  無危 (LC) ; Date assessed: 16 February 2009

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 商業性
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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00388 - 0.02045), b=3.03 (2.83 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.5   ±0.5 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 (Assuming fec > 10,000).
瀕危性 (Ref. 59153):  High vulnerability (56 of 100) .
價格種類 (Ref. 80766):   Unknown.