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Gonorynchiformes (Milkfishes) >
Kneriidae (Shellears)
Etymology: Kneria: From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch. Tropical; 15°S - 17°S
Africa: endemic to the Cunene River system in Angola (Ref. 52193, 120641) and Namibia (Ref. 52193).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 5.7 cm SL Männchen/unbestimmt; (Ref. 7248)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 9; Afterflossenstacheln 0; Afterflossenweichstrahlen: 8 - 9. Diagnosis: opercular organ (lamellar part) overlying anterior part of lateral line; body depth 6.5 times, head length 5.3 times in total length; snouth length equal to eye diameter, 3.5 times in head length; snout smooth, males often with tubercles on cheeks or around eyes; operular organ much larger than eye (Ref. 88971). Dorsal fin origin slightly before midpoint of head and caudal fin base (Ref. 7248, 52193, 88971). Anal fin origin slightly before midpoint of pelvic fins and caudal fin base; body yellowish brown, with a lateral band made up of darkbrown spots, dorsally and ventrally bordered by a pale zone; back and belly with rows of irregular shaped spots; 3-4 overlapping dark spots on caudal fin base; black spot at base of pectoral and pelvic fins; caudal fin without color pattern; 1st and 2nd ray of dorsal and anal fin blackish (Ref. 88971).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Poll, M., 1984. Kneriidae. p. 129-133. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3565)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Mehr Information
NamenSynonymeMetabolismusRäuberÖkotoxikologieFortpflanzungGeschlechtsreifeAblaichenSpawning aggregationFecundityEierEientwicklung
Alter/GrößeWachstumLänge-GewichtLänge-LängeLängenhäufigkeitenMorphometrieMorphologieLarvenLarven Pop.Dyn.RekrutierungDichteBRUVS
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
Tools
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [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).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
