Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Serranochromis: Latin, serra = saw + Greek, chromis = a fish, perhaps a perch (Ref. 45335); alvum: The specific name, alvum, a noun in apposition, is derived from the Latin, which means blotches and refers to the prominent lateral pigmentation (Ref. 123822).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch; tiefenbereich 2 - 2 m (Ref. 123822). Tropical
Africa: junction of the Cuito and Cuanavale rivers, tributary to the Okavango River in Angola (Ref. 123822).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 15.2 cm SL Männchen/unbestimmt; (Ref. 123822)
Kurzbeschreibung
Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt): 14 - 15; Rückenflossenweichstrahlen (insgesamt): 13-15; Afterflossenstacheln 3; Afterflossenweichstrahlen: 9 - 10. Diagnosis: The presence of ocelli throughout the anal fin of breeding males distinguishes Serranochromis alvum from S. robustus and S. jallae in which the ocelli in breeding males are restricted to the posterior 4-5 membranes of the anal fin (Ref. 123822). The exposed teeth of S. alvum differs from those of S. stappersi and S. altus, which possess small teeth that are buried in the lips; Serranochromis alvum has an emarginate caudal fin, while S. macrocephalus, S. janus, and S. angusticeps have rounded caudal fins; the shorter jaw of S. alvum, 43.4-53.5% of head length, separates it from S. spei, 53.5-57.2% of head length; Serranochromis alvum has 34-36 lateral-line scales, while S. thumbergi possesses more than 39 lateral-line scales; the acute angle of the cleft of the mouth, 50-60° of horizontal, of S. meridianus delimits it from the 30° angle of S. alvum; the long dark pectoral fins which reach past the middle of the dorsal fin separates S. longimanus from S. alvum; the interorbital width, 14.3-15.9% of head length, of S. alvum is narrower than that of S. swartzi, 17.6-19.8% of head length, S. cuanza, 16.3-18.0% of head length, and S. cacuchi, 20.0-21.7% of head length (Ref. 123822).
Found in riverbed which was mostly sand substrate with occasional marginal aquatic weed beds and fringing emergent beds of Phragmites (Ref. 123822).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Stauffer, J.R., Jr., R. Bills and P.H. Skelton, 2021. Four new species of Serranochromis (Teleostei: Cichlidae) from the Cuanza and Okavango river systems in Angola, including a preliminary key for the genus. Zootaxa 4908(1):66-84. (Ref. 123822)
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
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
