Classification / Names
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Synbranchiformes (Spiny eels) >
Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335); kakrimensis: Named after the Kakrima River, a major tributary of the Konkoure River basin in Guinea, the type locality of the new species (Ref. 55095).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. Tropical
Africa: Upper Konkoure River basin in Guinea (Ref. 55095).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 23.9 cm SL hane/ej könsbestämd; (Ref. 55095)
Short description
Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt): 29 - 30; Mjukstrålar i ryggfenan (totalt): 75-85; Taggstrålar i analfenan 3; Mjukstrålar i analfenan: 76 - 86; Ryggkotor: 90 - 93. Mastacembelus kakrimensis has a blunted snout (Ref. 55095). Posterior angle of lips situated from about below the horizontal middle of the posterior nare up to its posterior edge (Ref. 55095). Upper corner of gill opening very slightly anterior to dorsal point of pectoral-fin base, both points clearly anterior to ventral point of pectoral-fin base; dorsal point of pectoral-fin base situated largely above upper corner of gill opening; gill opening closed for about half, up to entire vertical distance between the dorsal and ventral edge of the pectoral-fin base (Ref. 55095). Lateral line is yellowish-white; can be continuous in anterior part, from the head up to half the distance between head and anus; the remaining, more porsterior, part of the lateral line is always clearly discontinuous (Ref. 55095). Preopercular spines are present in small-sized specimens, but are absent in medium and large sized specimens (Ref. 55095). Preanal length negatively allometric, postanal length positively allometric, latter always smaller than former (Ref. 55095).
Found in riffles of a small river with bottom consisted of rock boulders with aquatic vegetation (Ref. 55095).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Vreven, E.J. and G.G. Teugels, 2005. Redescription of Mastacembelus liberiensis Boulenger, 1898 and description of a new West African spiny-eel (Synbranchiformes: Mastacembelidae) from the Konkoure River basin, Guinea. J. Fish Biol. 67(2):332-369. (Ref. 55095)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Ytterligare information
PopulärnamnsynonymerMetabolikPredatorerEkotoxikologiReproduktionKönsmognadLekSpawning aggregationFecundityÄggEgg development
Age/SizeTillväxtLength-weightLength-lengthLength-frequenciesMorfometriMorfologiLarverLarvdynamikRekryteringAbundansBRUVS
referenserVattenbrukVattenbruksprofilAvelslinjerGenetikElectrophoresesÄrftlighetSjukdomarBehandlingNutrientsMass conversion
MedarbetareBilderStamps, Coins Misc.LjudCiguateraHastighetSimsättGälytaOtolithsHjärnstorlekSyn
Verktyg
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00122 - 0.00544), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
