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Congoglanis alula (Nichols & Griscom, 1917)

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Congoglanis alula
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Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Amphiliidae (Loach catfishes) > Doumeinae
Etymology: More on authors: Nichols & Griscom.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

; Nước ngọt gần đáy. Tropical; 3°N - 10°S, 14°E - 30°E

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Africa: present throughout the Congo River basin (Ref. 78218). In the Lukuga (Tanganyika outflow) up to the Kisimba-Kilia rapids (Ref. 93587). Reports of this species from Inga and the Luongo River (Zambian Congo) refer to Congoglanis inga and C. sagitta, respectively (Ref. 88958). Reports from the Luachimo River (Ref. 11970) are C. howesi (Ref. 92838).

Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.1 cm SL con đực/không giới tính; (Ref. 88958)

Short description Khóa để định loại | Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 8; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 9 - 11. Diagnosis: Congoglanis alula 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, respectively; a longer pelvic fin, 24–28% of standard length, vs. 19–21%; a shorter postorbital length, 27–31% of head length, vs. 32–35%; a relatively narrow interorbital width, 1.5 times eye diameter, vs. 2 times; and 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 (Ref. 88958). Congoglanis alula differs from C. sagitta in having a longer pectoral fin, 28–29% of standard length, vs. 23–27%; a longer pelvic fin, 24–28% of standard length, vs. 19–21%; a shorter caudal peduncle, 18–22% of standard length, vs. 21–24%; and deeper caudal peduncle, caudal-peduncle depth 2.6–3.3 times in caudal-peduncle length, vs. 3.1–4.0 times; a relatively narrow interorbital width, 1.5 times eye diameter, vs. 2 times; a more posteriorly placed anal fin, anal-fin origin approximately at tip of adpressed pelvic fin, vs. origin well in advance of tip of adpressed pelvic fin; and fewer vertebrae, 36–39, vs. 39–41 (Ref. 88958).

Sinh học     Tự điển (thí dụ epibenthic)

Typically found in fastest flowing portions of rivers and always associated with large rocks; appears 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 Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối | Người cộng tác

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 Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 16 February 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Trophic ecology
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Diet compositions
Food consumptions
Food rations
Các động vật ăn mồi
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Sự tái sinh sản
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Fecundities
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Egg(s)
Egg developments
Ấu trùng
Sự biến động ấu trùng
Anatomy
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Não bộ
Otoliths
Physiology
Body compositions
Nutrients
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Visual pigment(s)
Âm thanh của cá
Diseases / Parasites
Toxicities (LC50s)
Genetics
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Các nguồn internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Giống, Các loài | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Cây Đời sống | Wikipedia: Go, tìm | World Records Freshwater Fishing | Tạp chí Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  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).
Mức dinh dưỡng (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref. 120179):  Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).