Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas associadas(os) a recifes; não migratória; intervalo de profundidade 0 - 30 m (Ref. 7247). Tropical; 6°S - 30°S, 50°W - 31°W
Western Atlantic: Brazil. Caribbean (described from Cuban specimens) species refers to Stegastes xanthurus (formerly considered as a junior synonym of S. variabilis). Populations from Brazil and the Caribbean are genetically very distinct (Roberstson & van Tassell, 2012; accessed 08 August 2016; http://biogeodb.stri.si.edu/caribbean/en/thefishes/species/3884).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 12.5 cm TL macho/indeterminado; (Ref. 9626)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 12; Raios dorsais (total) : 14 - 17; Espinhos anais: 2; Raios anais : 12 - 15. Caudal fin slightly forked, with rounded lobes. Dark brown or blue above, shading to yellow below. Narrow, dark, obliquely vertical lines on side. Snout and forehead have bright blue lines. Small dark spot in pectoral axil, another on top of caudal peduncle (Ref. 26938).
Adults inhabit inshore and offshore coral reefs. They feed mainly on benthic algae but also on sponges, ascidians and anemones while juveniles feed on invertebrates like harpacticoid copepods and nemerteans (Ref. 9626). Often solitary (Ref. 9626). Juveniles are aggressively territorial (Ref. 9626). Aggressive when breeding (Ref. 9710). 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). Taken incidentally in traps and small-meshed beach nets (Ref. 5217).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
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)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
Baixar XML
Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 22.5 - 27.5, mean 25.9 °C (based on 139 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00923 - 0.02851), b=2.99 (2.84 - 3.14), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 103 [52, 161] mg/100g; Iron = 0.741 [0.459, 1.216] mg/100g; Protein = 18.1 [17.0, 19.3] %; Omega3 = 0.11 [0.07, 0.18] g/100g; Selenium = 25.1 [13.9, 46.7] μg/100g; VitaminA = 81.5 [21.8, 278.2] μg/100g; Zinc = 1.75 [1.19, 2.54] mg/100g (wet weight);
