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Acanthurus reversus
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Acanthurus reversus
Picture by
Randall, J.E.
Classification / Names
Common names
|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
|
CoL
|
WoRMS
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Cloffa
Teleostei (teleosts) >
Acanthuriformes
(Surgeonfishes) >
Acanthuridae
(Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology:
Acanthurus:
Greek, akantha = thorn + Greek, oura = tail (Ref.
45335
)
;
reversus:
Named in reference to the reversal of the color pattern of the caudal fin compared to that of
A. olivaceus
, its closest relative.
.
More on authors:
Randall
&
Earle
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 4 - 15 m (Ref.
41630
). Tropical
Eastern Central Pacific: Marquesas Islands.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 34.0 cm TL male/unsexed; (Ref.
89972
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 9;
Dorsal
soft rays
(total): 24-25;
Anal
spines
: 3;
Anal
soft rays
: 23 - 24. Caudal concavity 3.35-4.7 in SL; brown in life, the posterior half of body sometimes abruptly paler, with an elongate orange spot extending posteriorly from upper end of gill opening, the posterior half enclosed by a broad, deep blue band that extends beyond tip of pectoral fin; dorsal and anal fin base with a faint orange line, the soft portion of the dorsal with three dark longitudinal bands on outer one-half of fin, the anal fin with a narrow blue margin; caudal fin pale yellow with a broad black posterior border that narrows as it extends onto elongate lobes of fin; outer one-third of pectoral fins abruptly white; juveniles bright yellow with blue margins on dorsal and anal fins (Ref.
41630
).
Found inshore (Ref.
41630
). Feeds on filamentous algae (Ref.
89972
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Randall, J.E. and J.L. Earle
, 1999.
Acantharus reversus
, a new species of surgeonfish (Perciformes: Acanthuridae) from the Marquesas Islands. Proc. Calif. Acad. Sci. 51(14):473-481. (Ref.
41630
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
04 May 2010
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 27.5 - 29, mean 28 °C (based on 106 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01103 - 0.04981), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.1 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (24 of 100).
Nutrients (Ref.
124155
): Calcium = 60.2 [25.8, 177.6] mg/100g; Iron = 0.748 [0.283, 1.834] mg/100g; Protein = 18.2 [16.9, 19.5] %; Omega3 = 0.0919 [, ] g/100g; Selenium = 15.1 [5.2, 43.5] μg/100g; VitaminA = 40.6 [9.6, 161.2] μg/100g; Zinc = 2.83 [0.88, 5.30] mg/100g (wet weight);
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