>
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch. Tropical
Africa: known only from the catchment of Lake Natron in Tanzania (Ref. 32272, 118638).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 5.0 cm SL Männchen/unbestimmt; (Ref. 32272)
Rückenflossenstacheln (insgesamt): 13 - 14; Rückenflossenweichstrahlen (insgesamt): 9-12; Afterflossenstacheln 3-4; Afterflossenweichstrahlen: 9 - 11. Diagnosis: A very small slender species with a narrow ventrally-placed mouth (Ref. 118638). Mature males have dark-edged dorsal and anal fins, iridescent blue-white spots on flanks, white lower lips, and a spotted caudal fin; male breeding dress shows geographic variation, with males of some populations having yellow throats and white bellies, while others are a fiery orange underneath (Ref. 118638). Females and non-territorial males are sandy-coloured, paler ventrally, sometimes with faint vertical bars (Ref. 118638).
It inhabits the springs and some spring-fed creeks near the southern and south-eastern shores of Lake Natron (Ref. 32272). It co-occurs with Alcolapia alcalicus and Alcolapia latilabris (Ref. 32272). Observed to nibble at stones and gravel, probably taking mainly algae for food; omnivorous, taking insects from the water surface as well (Ref. 32272). A maternal mouthbrooder: males defend spawning territories among rocks in shallow water (Ref. 32272, 118638). Potential as an aquarium fish (Ref. 118638).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
A maternal mouthbrooder: males defend spawning territories among rocks in shallow water (Ref. 32272, 118638). Females carry eggs and larvae in their mouths (Ref. 32272).
Seegers, L. and H. Tichy, 1999. The Oreochromis alcalicus flock (Teleostei: Cichlidae) from lakes Natron and Magadi, Tanzania and Kenya, with descriptions of two new species. Ichthyol. Explor. Freshwat. 10(2):97-146. (Ref. 32272)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien:
Mehr Information
ReferenzenAquakulturAquakultur ProfilZuchtlinienGenetikElectrophoresesVererbbarkeitKrankheitenVerarbeitungNutrientsMass conversion
PartnerBilderStamps, Coins Misc.LauteCiguateraGeschwindigkeitSchwimmstilKiemenoberflächeOtolithsGehirngrößeSehfähigkeit
Tools
Zusatzinformationen
Download XML
Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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): 3.2 ±0.40 se; based on food items.
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).
