Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Grammatidae
Etymology: Gramma: Greek, gramma, atos = signal, mark (Ref. 45335); brasiliensis: Named for the given distribution of this basslet; endemic to the Brazilian Province.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 22 m (Ref. 27309). Tropical; 8°S - 23°S
Southwest Atlantic: endemic to Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.6 cm SL male/unsexed; (Ref. 27309)
Found over coral and rocky bottoms, on the mainland coast and on coastal as well as oceanic islands. May be solitary or in groups of up to 4 individuals in small caves and under ledges, often swimming upside down, oriented to the ceiling. Feeds by picking at planktonic organisms in the water column; observed occasionally cleaning other fishes, including the pomacentrid Chromis multilineata and the haemulid Haemulon plumieri (Ref. 27309).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sazima, I., J.L. Gasparini and R.L. Mourra, 1998. Gramma brasiliensis, a new basslet from the western South Atlantic (Perciformes: Grammatidae). Aqua J. Ichthyol. Aquat. Biol. 3(1):39-43. (Ref. 27309)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.7 - 27.3, mean 26.2 (based on 83 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.45 se; Based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .