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> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Maylandia: In honour of Hans J. Mayland, German ictiologist (Ref. 45335); sciasma: The specific epithet, sciasma, is Greek for shadow, in reference to the black pelvic fins of males; it is treated as a noun in apposition (Ref. 86409).

Environment: milieu / climate zone / depth range / distribution range Οικολογία

; Γλυκού νερού βενθοπελαγικό. Tropical; 10°S - 11°S, 34°E - 35°E

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Africa: Lake Malawi in Tanzania (Ref. 86409).

Μέγεθος / Βάρος / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.1 cm SL αρσενικό/απροσδιόριστο; (Ref. 86409)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 16 - 19; Μαλακές ραχιαίες ακτίνες (συνολικά) : 8 - 10; Εδρικές άκανθες: 3; Μαλακές εδρικές ακτίνες: 7 - 9. Diagnosis: A moderately-sloped head and bicuspid teeth in the outer row of the jaws place this species in Maylandia (Ref. 86409). A black pelvic fin, a dark-blue cheek and preorbital area, and a blue dorsal fin without a black submarginal band in breeding males and the light-brown coloured females that have yellow fin-margins distinguish M. sciasma from all other members of Maylandia (Ref. 86409). Breeding males of M. sciasma are distinguished from those of some populations of M. zebra by the presence of a single interorbital bar, vs. 2 in M. zebra, and by black pigment on the anterior membranes of the anal fin; female M. sciasma cannot reliably be distinguished from those of most other members of the Aurora group, but differ from those of M. aurora by more vertical bars below the dorsal fin, 7–10 vs. 6 (Ref. 86409).

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής : Kullander, Sven O. | Συνεργάτες

Ciccotto, P.J., A. Konings and J.R. Stauffer Jr., 2011. Descriptions of five new species in the genus Metriaclima (Teleostei: Cichlidae) from Lake Malaŵi, Africa. Zootaxa 2738:1-25. (Ref. 86409)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 22 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Περισσότερες πληροφορίες

Trophic ecology
Τροφικά αντικείμενα
Diet compositions
Food consumptions
Food rations
Θηρευτές

Ecology
Οικολογία

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Αναπαραγωγή
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Προνύμφες
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Physiology
Body compositions
Nutrients
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Κολυμβητικός τύπος
Swimming speeds
Visual pigment(s)
Ήχοι ψαριών
Diseases / Parasites
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Genetics
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Heritabilities

Human related
Aquaculture systems
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Διαδικτυακές πηγές

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Τροφικό Επίπεδο (Ref. 69278): 2.3 ±0.1 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Maylandia sciasma (Ciccotto, Konings & Stauffer, 2011)