Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Pomacentridae
(Damselfishes) > Pomacentrinae
Etymology: Premnas: Greek, premnas, -ados = a kind of tunna (Ref. 45335).
More on author: Bloch.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; non-migratory; depth range 1 - 16 m (Ref. 9710). Tropical; 28°N - 26°S, 83°E - 178°W
Indo-West Pacific: Indo-Australian Archipelago including India, Burma, Thailand, Malaysia, Indonesia, Philippines, New Guinea, New Britain, Solomon Islands, Vanuatu, and Australia (northern Queensland).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 9710); common length : 13.0 cm SL male/unsexed; (Ref. 4966)
Adults inhabit lagoon and seaward reefs (Ref. 9710), found mainly in protected coastal waters and lagoons. Typically found in pairs in which males are much smaller than females (Ref. 48636). Feed primarily on zooplankton and benthic algae (Ref. 4966). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Associated with the anemone Entacmaea quadricolor (Ref. 5911). Have been reared in captivity (Ref. 35404, 35413, 35420). Diurnal species (Ref. 113699).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 26.7 - 29.3, mean 28.7 °C (based on 1930 cells).
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01478 - 0.05374), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.31 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).
Nutrients (Ref. 124155
): Calcium = 70.4 [42.8, 109.4] mg/100g ; Iron = 0.688 [0.455, 1.091] mg/100g ; Protein = 18.7 [17.6, 19.7] % ; Omega3 = 0.132 [0.084, 0.200] g/100g ; Selenium = 25.9 [14.6, 46.7] μg/100g ; VitaminA = 67.3 [21.1, 207.4] μg/100g ; Zinc = 1.44 [0.98, 2.11] mg/100g (wet weight);