Congoglanis howesi : fisheries

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Congoglanis howesi Vari, Ferraris & Skelton, 2012

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> Siluriformes (Catfishes) > Amphiliidae (Loach catfishes) > Doumeinae
Etymology: howesi: The species name, howesi, is in honor of Gordon J. Howes, formerly of the Natural History Museum, London, in recognition of his many contributions to ichthyology (Ref. 92838).

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal. Tropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Africa: Luachimo River and its rapids (Kasai River drainage, middle Congo River basin) in Angola (Ref. 92838).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 11.3 cm SL Männchen/unbestimmt; (Ref. 92838)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 8; Afterflossenstacheln 0; Afterflossenweichstrahlen: 8 - 10; Wirbelzahl: 38 - 39. Congoglanis howesi differs from C. alula in the caudal-peduncle length relative to the caudal-peduncle depth (360%-380% vs. 260%-330%), the head depth (46-57% of head length vs. 38-45%), and the more attenuate head (Ref. 92838). It differs from C. inga in the length of the maxillary barbel, which is extending beyond posterior nostril but falling distinctly short of vertical through anterior margin of orbit vs. extending well beyond anterior margin of orbit, the body width at the dorsal-fin origin (14-16% of standard length vs. 17-20%), the postorbital length (29-32% of head length vs. 32-35%), the caudal peduncle length relative to the caudal-peduncle depth (360-380% vs. 210-290%), the number of vertebrae (38-39 vs. 35-37), and the length of the caudal peduncle, being 20-24% of standard length vs. 16-21% (Ref. 92838). It differs from C. sagitta in the length of the pelvic fin (22-28% of standard length vs. 19-21%), the head width (75-78% of head length vs. 63-73%), the length of the adpressed anal fin, reaching beyond the vertical through the posterior terminus of the adipose fin vs. reaching to or falling short of that vertical, and the length of the pectoral fin, being 26-32% of standard length vs. 23-27% (Ref. 92838).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Found in the rapids of the Luachimo River (Ref. 92838).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Vari, R.P., C.J. Ferraris Jr. and P.H. Skelton, 2012. New species of Congoglanis (Siluriformes: Amphiliidae) from the southern Congo River basin. Copeia 2012(4):626-630. (Ref. 92838)

IUCN Rote Liste Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien:
FAO - Publication: search | FishSource |

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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoobank | 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).
Trophic level (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).