Congoglanis sagitta : fisheries

Congoglanis sagitta Ferraris, Vari & Skelton 2011

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Congoglanis sagitta
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Siluriformes (Catfish) 鯰形目 (Catfish) > Amphiliidae (Loach catfishes) 無棘鯰科 (Loach catfishes) > Doumeinae
Etymology: sagitta: relative to that of its congeners; a noun in apposition (Ref. 88958).  More on authors: Ferraris, Vari & Skelton.

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

; 淡水 居於水底的.    ; 10°S - 13°S, 29°E - 32°E

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

Africa: upper Congo River basin, specifically in tributaries of Lake Mweru, Luongo River and Chambeshi River, Zambia (Ref. 88958).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 13.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 88958)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 8; 臀棘 0; 臀鰭軟條: 10 - 11; 脊椎骨: 39 - 41. Diagnosis: Congoglanis sagitta differs from C. inga in having a shorter maxillary barbel, not reaching to vertical through anterior margin of orbit vs. extending well past anterior margin of orbit; a shallower caudal-peduncle depth, 6% of standard length vs. 7–8%; and more slender caudal peduncle, its depth 3.1–4.0 times in its length vs. 2.1–2.9; a shorter pelvic fin, 19–21% of standard length vs. 22–25%; a more anteriorly placed anal fin, its origin well in advance of tip of adpressed pelvic fin vs. origin approximately at tip of adpressed pelvic fin; shorter anal-fin rays, posterior rays of adpressed anal fin extend to, rarely slightly beyond, vertical through posterior limit of adipose fin vs. posterior rays extend well past vertical through posterior limit of adipose fin; and more vertebrae, 39–41 vs. 35–37 (Ref. 88958). It differs from C. alula in having a shorter pectoral fin, 23–27% of standard length vs. 28–29%; a shorter pelvic fin, 19–21% of standard length vs. 24–28%; a longer caudal peduncle, 21–24% of standard length vs. 18–22%; and more slender caudal peduncle, its depth 3.1–4.0 times in its length vs. 2.6–3.3 times; a relatively wide interorbital width, 2 times eye diameter vs. 1.5 times; a more anteriorly placed anal fin, its origin well in advance of tip of adpressed pelvic fin vs. origin approximately at tip of adpressed pelvic fin; and more vertebrae, 39–41 vs. 36–39 (Ref. 88958).

生物學特性     字彙 (例如 epibenthic)

Congoglanis sagitta is typically found in the fastest flowing portions of rivers and are always associated with large rocks; they appear to congregate underneath rocks near where water breaks over the rocks during the day, and will move out onto the tops of rocks at night (Ref. 88958).

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


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

Ferraris, C.J. Jr., R.P. Vari and P.H. Skelton, 2011. A new genus of African loach catfish (Siluriformes: Amphiliidae) from the Congo River basin, the sister-group to all other genera of the Doumeinae, with the description of two new species. Copeia 2011(4):477-489. (Ref. 88958)

IUCN 瀕危狀態 (Ref. 123251)

  未評估 

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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人類使用

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更多資訊

國家
FAO區域
生態系
發現紀錄
簡介
Stocks
生態學
食性
食物相
食物消耗量
定量
俗名
同種異名
新陳代謝
捕食者
生態毒物學
繁殖
成熟度
產卵場
產卵群集
孕卵數

卵發育
年龄/大小
成長
長度-重量
長度-長度
長度-頻率
形態測量圖
型態特徵
仔魚
稚魚動力學
入添量
豐度
BRUVS
參考文獻
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養殖資訊
品種
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Mass conversion
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Stamps, Coins Misc.
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速度
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鰓區
Otoliths
腦重體重比
眼睛色素

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網路資源

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (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 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Moderate vulnerability (39 of 100) .