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Drepane africana, African sicklefish : fisheries
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Teleostei (teleosts) >
Acanthuriformes
(Surgeonfishes) >
Drepaneidae
(Sicklefishes)
Etymology:
Drepane:
Greek, drepane = sickle (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; benthopelagic; depth range 10 - 75 m (Ref.
27000
), usually 20 - 50 m (Ref.
81287
). Tropical; 30°N - 17°S, 27°W - 13°E
Eastern Atlantic: West African coast, from Senegal to Angola (Ref.
7350
,
81287
). Also reported from the Canary Islands, Cape Verde (Ref.
7350
) and Mauritania (Ref.
5377
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref.
1380
); common length : 30.0 cm TL male/unsexed; (Ref.
3609
); max. published weight: 750.00 g (Ref.
4883
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 8 - 9;
Dorsal
soft rays
(total): 17-18;
Anal
spines
: 3;
Anal
soft rays
: 20 - 21. Diagnosis: body deep and strongly compressed, its anterior profile very steep up to dorsal-fin origin, and strongly compressed; head small; snout short; mouth small, terminal, strongly protrusible, with fleshy lips; teeth slender and pointed, set in bands in upper jaw; roof of mouth toothless; dorsal fin deeply notched; 1st dorsal fin spine small, forward-pointing and visible only in young individuals; pectorals falcate, very long, their tips almost reaching to caudal-fin base; hind margin of caudal fin slightly rounded; pelvic fins thoracic; scales finely ctenoid, covering body, bases of dorsal and anal fins and head, except snout and preopercle; preopercular margin denticulate; lateral line strongly arched (Ref.
81287
). Coloration: silvery grey, darker on back, almost white on belly; sides with a series of 8 brown, more or less faded vertical bars, always more distinct in young individuals (Ref.
81287
).
Neritic species (Ref.
7350
). Essentially marine, often living in groups (Ref.
81287
) over sandy and muddy bottoms (Ref.
2683
), between 20 and 50 m depth, and entering coastal lagoons where sexual maturation begins (Ref.
81287
). Feeds of fish eggs, benthic invertebrates and detritus (Ref.
28587
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Desoutter, M.
, 1990. Ephippidae. p. 834-836. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref.
7350
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
23 May 2012
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 19.2 - 28, mean 26.1 °C (based on 132 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00737 - 0.02705), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.1 ±0.41 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.13-0.25).
Fishing Vulnerability (Ref.
59153
): High vulnerability (56 of 100).
Price category (Ref.
80766
):
Unknown
.
Nutrients (Ref.
124155
): Calcium = 75.5 [41.3, 134.2] mg/100g; Iron = 0.711 [0.423, 1.229] mg/100g; Protein = 17.3 [16.3, 18.3] %; Omega3 = 0.169 [0.090, 0.319] g/100g; Selenium = 60.4 [29.3, 123.8] μg/100g; VitaminA = 21.9 [6.9, 66.7] μg/100g; Zinc = 1.43 [0.97, 2.10] mg/100g (wet weight);
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