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Dorsal
spines
(total): 9;
Dorsal
soft rays
(total): 26-28;
Anal
spines
: 3;
Anal
soft rays
: 24 - 26. A deep-bodied surgeonfish (body depth 1.7 in SL) with a conspicuous yellow caudal spine. Has the most distinctive coloration of all western Atlantic surgeonfishes (Ref.
26938
).
Inhabits coral reefs, inshore grassy or rocky areas. Forms small groups (Ref.
26235
). Mainly diurnal. Feeds entirely on algae (Ref.
5521
). At Fernando de Noronha Archipelago in southwestern Atlantic, juveniles hold cleaning stations together with the doctorfish (
Acanthurus chirurgus
) and sergeant major (
Abudefduf saxatilis
) and graze algae as well as pick molted skin and parasites from green turtles (
Chelonia mydas
). This behavior is preceded by a characteristic inspection usually followed by feeding nips on the turtles’ skin (head, limbs, and tail), as well as on the carapace. The most inspected and cleaned body parts are the flippers (Ref.
51385
). Diurnal species (Ref.
3194
). It forms resident spawning aggregations in late afternoon after high tide (Ref.
27825
,
120681
,
120682
). The spine on both sides of the caudal peduncle may inflict painful wounds (Ref.
5217
). Marketed fresh. Maximum depth reported taken from Ref. 127989.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Robins, C.R. and G.C. Ray
, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref.
7251
)
Preferred temperature (Ref.
123201
): 23.7 - 28.1, mean 27.4 °C (based on 783 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01558 - 0.04242), b=2.95 (2.81 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 2.2 ±0.00 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.11-0.50).
Fishing Vulnerability (Ref.
59153
): High vulnerability (59 of 100).
Price category (Ref.
80766
):
Medium
.
Nutrients (Ref.
124155
): Calcium = 53.4 [22.4, 151.6] mg/100g; Iron = 0.729 [0.281, 1.754] mg/100g; Protein = 18.3 [17.0, 19.5] %; Omega3 = 0.102 [0.047, 0.213] g/100g; Selenium = 19.2 [6.8, 55.4] μg/100g; VitaminA = 36.2 [8.8, 136.0] μg/100g; Zinc = 2.59 [0.82, 4.74] mg/100g (wet weight);
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