Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Mazarunia: Taken from river Mazaruni; local habitat of this fish (Ref. 45335); pala: The specific name is from the Greek pala, meaning gold nugget. This is in reference to the golden spots behind and under the orbit and also to the fact that this species has only been collected in the main channel of the upper Mazaruni River, where a growing gold mining industry may be contributing to degradation of its habitat. To be regarded as an adjective in feminine form..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic; pH range: 4.4 - ?. Tropical; 22°C - 25°C (Ref. 91746)
South America: Upper Mazaruni River between the mouths of the Kukui and
Kamarang rivers in Guyana.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.4 cm SL male/unsexed; (Ref. 91746)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 7 - 8; Anal spines: 3; Anal soft rays: 7; Vertebrae: 26. Based on phylogenetic analysis, this species is distinguished from its congeners by the derived absence of a parhypurapophysis (132-1). Based on external characters, it is diagnosable by the presence of a dorsal-fin scaly pad with ctenoid scales (vs. no scaly pad in Mazarunia charadrica and Mazarunia mazarunii), a small suborbital stripe that is limited to the preopercle, by the absence of clearly discernible lateral bars on the body, and by its general pinkish coloration with a midlateral spot as the only melanic marking (Ref. 91746).
Occurs mostly in or near the main upper Mazaruni River channel in localities with sandy or slightly muddy substrates with structure formed by submerged or emerging grass and other
riparian vegetation and some drift wood. Appears to move at night into shallow, flooded banks with terrestrial vegetation (Ref. 91746).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
López-Fernández, H., D.C. Taphorn and E.A. Liverpool, 2012. Phylogenetic diagnosis and expanded description of the genus Mazarunia Kullander, 1990 (Teleostei: Cichlidae) from the upper Mazaruni River, Guyana, with description of two new species. Neotrop. Ichthyol. 10(3):465-486. (Ref. 91746)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
