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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Pseudotropheus: Greek, pseudes = false + Greek, tropaion = defeat, a memorial of a fighting war, trophy; because of their specialized teeth were such an obvious feeding adaptation (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce demersale; pH range: 8.0 - 9.0; dH range: 12 - 20; distribuzione batimetrica 2 - 50 m. Tropical; 22°C - 26°C (Ref. 2060); 13°S - 15°S
Africa: Lake Malawi (Ref. 119458), common in the southeastern and southwestern arms of the lake (Ref. 5684).
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm TL maschio/sesso non determinato; (Ref. 5684)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 17 - 19; Raggi dorsali molli (totale) : 9 - 10; Spine anali: 3; Raggi anali molli: 8 - 9. Diagnosis: This species is distinguished from all other members in Pseudotropheus, except P. crabro, P. demasoni, and P. saulosi, by the presence of five or fewer vertical bars below the dorsal fin; most Pseudotropheus species either have no bars or have greater than five below the dorsal fin (Ref. 119458). It is distinguished from P. crabro, P. demasoni, and P. saulosi by a pale yellow to hyaline dorsal fin vs. dorsal fin heavily pigmented with black (Ref. 119458).
Lives mainly over sand where it finds refuge in the empty shells of the gastropod, Lanistes nyassanus. Also found in intermediate habitats and rarely over rocks. Usually territorial over gastropod shells. When found away from its shell, it is usually solitary or in small groups of less than 5 individuals. Feeds from sand, taking epipelic algae (Ref. 6256).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Females are mouthbrooders.
Stauffer, J.R. Jr., A.F. Konings and T.M. Ryan, 2016. Redescription of Pseudotropheus livingstonii and Pseudotropheus elegans from Lake Malawi, Africa. Zootaxa 4154(2):169-178. (Ref. 119458)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca: ; Acquario: Commerciale
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00700 - 0.03275), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.1 se; based on diet studies.
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Fec<1000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
