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Scarus dimidiatus, Yellowbarred parrotfish : fisheries, aquarium
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Scarus dimidiatus
Picture by
Randall, J.E.
Teleostei (teleosts) >
Eupercaria/misc
(Various families in series Eupercaria) >
Scaridae
(Parrotfishes) > Scarinae
Etymology:
Scarus:
Greek, skaros = a fish described by anciente writers as a parrot fish; 1601 (Ref.
45335
)
.
More on author:
Bleeker
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; reef-associated; depth range 1 - 25 m (Ref.
90102
). Tropical; 30°N - 24°S, 107°E - 170°W
Western Pacific: Indonesia to Samoa, north to the Ryukyu Islands, south to the Great Barrier Reef. Replaced by
Scarus scaber
in the Indian Ocean (Ref.
37816
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref.
48636
)
Dorsal
spines
(total): 9;
Dorsal
soft rays
(total): 10;
Anal
spines
: 3;
Anal
soft rays
: 9. Males recognized by the blue snout and band behind eye. Eastern form has blue cheek and western form has yellow cheek. Females grey to yellow with dusky saddle over back (Ref.
48636
). Closely resembles
S. oviceps
and
S. scaber
. In
S. oviceps
, the initial phase has fewer, less vertical diagonal dark bars on the back and the terminal phase lacks the light-centered bar between the eye and the pectoral fin base, is darker and less brilliant blue on the upper head and back, and is usually larger.
Inhabits coral-rich areas of clear, protected reefs (Ref.
9710
). Found in lagoon and seaward reefs (Ref.
90102
). Feeds mainly on algae (Ref.
26993
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Oviparous, distinct pairing during breeding (Ref.
205
).
Parenti, P. and J.E. Randall
, 2000. An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyol. Bull. J.L.B. Smith Inst. Ichthyol. (68):1-97. (Ref.
35918
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
17 September 2009
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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Estimates based on models
Preferred temperature (Ref.
123201
): 25.2 - 29.3, mean 28.5 °C (based on 1649 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00789 - 0.02416), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.0 ±0.00 se; based on food items.
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low to moderate vulnerability (30 of 100).
Price category (Ref.
80766
):
High
.
Nutrients (Ref.
124155
): Calcium = 45.6 [23.8, 73.3] mg/100g; Iron = 0.696 [0.433, 1.175] mg/100g; Protein = 18.3 [16.3, 20.2] %; Omega3 = 0.06 [0.04, 0.10] g/100g; Selenium = 19.9 [9.9, 35.8] μg/100g; VitaminA = 44.9 [12.2, 162.7] μg/100g; Zinc = 2.69 [1.84, 3.65] mg/100g (wet weight);
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