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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Perissodus: Greek, perissos = uneven + Greek, odous = teeth (Ref. 45335).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten pelagiska. Tropical; 3°S - 9°S
Africa: endemic to Lake Tanganyika, occurs in the southern half of the lake (Ref. 46829, 93918). One juvenile was collected on the western coast of the lake, near Kalemie (Ref. 93918).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 16.4 cm SL hane/ej könsbestämd; (Ref. 5678)
Pelagic species (Ref. 6770) occuring in the rocky habitat (Ref. 46829). Scale-ripper (Ref. 6770, 46829). Caught at depths from 60-100 metres (Ref. 93918), but has also been seen in the shallow rocky habitat (Ref. 46829). Breeding behaviour is interesting as it involves a pair bond even though they are mouthbrooders in which the female broods the eggs (Ref. 466829). Come to shoreline to release their fry (Ref. 6770).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Konings, A., 1998. Tanganyika cichlids in their natural habitat. Cichlid Press. 272 p. (Ref. 46829)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Akvarium: Kommersiell
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Trofisk nivå (Ref. 69278) |
4.4 ±0.80 se; based on food items. |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |