Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius; mozambiquensis: The name mozambiquensis indicates the type locality for the species (Ref. 75744).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; pelagic. Tropical
Africa: only known from the Larde Estuary in Mozambique (Ref. 75744).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 11.9 cm SL male/unsexed; (Ref. 75744)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7. Diagnosis: A species of Gerres with the following combination of characters: body depth 46-47% of standard length, distinctly more than head length; dorsal fin with 9 spines and 10 soft rays; anal fin with 3 spines and 7 soft rays; pored lateral-line scales 43-44; 4-4.5 scales between fifth dorsal-fin spine base and lateral line; 5.5-6.5 scales above lateral line, 9.5-10.5 below; scales on dorsum of head extend to or slightly beyond vertical at front edge of orbit, without two converging rows of minute scales within larger scales, premaxillary groove at front of interorbital area not scaly; gill rakers on first gill arch 12-13; second dorsal-fin spine longest, its length about twice orbit diameter; second anal-fin spine robust, ratio of greatest width of second spine to greatest width of third spine 1.7-1.8; margin of inter-spinous membranes of second to fifth dorsal-fin spines black; caudal fin lobes short, length of upper lobe equal to head length; body with six to eight indistinct dark vertical bars, bar width about half pupil diameter; supraneural bones three (Ref. 75744).
Currently only known from the type locality; no details available on whether habitat is freshwater or brackish (Ref. 75744).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Iwatsuki, Y. and P.C. Heemstra, 2007. A new gerreid fish species and redescription of Gerres maldivensis Regan, 1902 from the Indian Ocean (Perciformes: Gerreidae). Copeia 2007(1):85-92. (Ref. 75744)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Internet sources
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=0.01413 (0.00602 - 0.03315), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
