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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Petrochromis: Latin, petra = stone + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Eponymy: Dr Ethelwynn Trewavas (1900–1993) was an eminent British ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Poll.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch; pH range: 7.5 - 8.5; dH range: 10 - ?. Tropical; 23°C - 25°C (Ref. 2060); 7°S - 9°S
Africa: endemic to Lake Tanganyika, restricted to the southwestern part of the lake (Ref. 46829, 52921).
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL Männchen/unbestimmt; (Ref. 5679)
Lives in the shallow, rocky habitat; extremely shy; usually found in groups; feeds on algae and has long digestive tract (Ref. 46829). Feeds by scraping rock biocover (Ref. 6770, 46829). Females brood their young in the mouth (Ref. 46829, 86760).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Larvae of up to 3.17 cm TL are mouthbrooded by female parent 14.3 cm SL long (Ref. 86760).
Konings, A. and H.W. Dieckhoff, 1992. Tanganyika secrets. Cichlid Press. 207 p. (Ref. 52921)
IUCN Rote Liste Status (Ref. 130435: Version 2024-2)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Aquarium: Kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.1 ±0.1 se; based on diet studies.
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).
