This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.
×
Cookie Settings
This website uses different types of cookies to enhance your experience. Please select your preferences below:
> Eupercaria/misc (Various families in series Eupercaria) > Labridae (Wrasses) > Julidinae
Eponymy: Albertus Jacobus Duymaer van Twist (1809–1887) was Governor-General of the Dutch East Indies (1851–1856). He is known to have made a collection of zoological specimens during a journey to the Moluccas (1855). (Ref. 128868), visit book page. More on author: Bleeker.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie
Rückenflossenstacheln (insgesamt) : 9; Rückenflossenweichstrahlen (insgesamt) : 12; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 11 - 13. Body brown, shading to yellow on abdomen, thorax and lower head, and to reddish posteriorly; reddish lips; posterior of operculum with a large black spot, a green spot above and adjacent to this, and above this is a red spot. Pectoral base with a dark brown bar. Dorsal spines pungent. Body shape (shape guide): fusiform / normal; Cross section: compressed.
Adults occur in clear lagoon and seaward reefs from the lower surge zone to a depth of 30 m (Ref. 1602). Usually in areas with mixed rubble, coral, or rock and sand (Ref. 9710). Usually solitary among large corals. Small juveniles swim with their head down, keeping dorsal and anal fins erected, and may seem like the face of a larger fish when viewed from side on by a predator (Ref. 48636). Oviparous, distinct pairing during breeding (Ref. 205). Occasionally seen in fish markets and aquarium trade.
Westneat, M.W., 2001. Labridae. Wrasses, hogfishes, razorfishes, corises, tuskfishes. p. 3381-3467. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9823)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bevorzugte Temperatur (Ref. 123201): 24.9 - 29.3, mean 28.2 °C (based on 2766 cells).
Phylogenetischer Diversitätsindex (Ref. 82804): PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00468 - 0.02039), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophische Ebene (Ref. 69278): 3.5 ±0.37 se; based on food items.
Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref. 59153): Low vulnerability (10 of 100). 🛈
