Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Claroteidae
(Claroteid catfishes) > Auchenoglanidinae
Etymology: Notoglanidium: Greek, noton = back + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish; diminutive (Ref. 45335); walkeri: Named in honour of R.B.N. Walker, collector of the type specimens (Ref. 94168). More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Africa: Ibi River in Ghana (Ref. 57126, 94168), and Agnébi River in Ivory Coast (Ref. 57126, 94168).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 57126)
Morphology | Morphometrics
soft rays: 11 - 12;
Vertebrae: 39 - 40. Diagnosis: Notoglanidium walkeri differs from other species in the genus in having: an average interorbital distance, 27.8-33.3% of head length vs. smaller in N. boutchangai, N. depierrei, N. pallidum and N. pembetadi, and larger in N. maculatum and N. thomasi; a relatively small combined premaxillary tooth plate width, 13.7-16.1% of head length vs. larger in N. akiri, N. boutchangai, N. macrostoma and N. pembetadi; and a relatively large number of soft dorsal-fin rays, 11-15 vs. less in N. akiri, N. boutchangai, N. depierrei and N. macrostoma, and more in N. maculatum (Ref. 94168).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Geerinckx, T., E. Vreven, M. Dierick, L.V. Hoorebeke and D. Adriaens, 2013. Revision of Notoglanidium and related genera (Siluriformes: Claroteidae) based on morphology and osteology. Zootaxa 3691(1):165-191. (Ref. 94168)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .