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Centrophorus lusitanicus, Lowfin gulper shark : fisheries
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Centrophorus lusitanicus
Female picture by
Cambraia Duarte, P.M.N. (c)ImagDOP
Elasmobranchii (sharks and rays) >
Squaliformes
(Sleeper and dogfish sharks) >
Centrophoridae
(Gulper sharks)
Etymology:
Centrophorus:
centr
[
um
] (L.), prickle or sharp point;
phorus
, from
phoreus
(Gr.), bearer or carrier, referring to grooved spines on dorsal fins. (
See ETYFish
)
;
lusitanicus:
-icus
, belonging to: Lusitania, ancient name of Portugal, type locality (although identity of holotype is in dispute, treated as a junior synonym of
C. granulosus
by some workers). (
See ETYFish
)
.
Issue
Portugal and so must be considered a junior synonym of the latter species. The purported syntype BMNH 1867.7.23.2 is not a type specimen and refers to a separate long-finned species (see Ref.
11674
0 for available evidence).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 300 - 1400 m (Ref.
247
). Deep-water; 43°N - 38°S, 18°W - 124°E (Ref.
54312
)
Eastern Atlantic: Portugal, Senegal, Côte d'Ivoire to Nigeria. Western Indian Ocean: southern Mozambique and possibly Natal, South Africa (Ref.
11228
). Western Pacific: China (Ref.
6577
) and Taiwan (Ref.
247
); occurrence in the Western Central Pacific uncertain but should be watched for (Ref.
31367
). Often confused with
Centrophorus niaukang
and
Centrophorus granulosus
(Ref.
31367
).
Length at first maturity / Size / Weight / Age
Maturity: L
m
116.0
, range 88 - 144 cm
Max length : 160 cm TL male/unsexed; (Ref.
5578
)
Dorsal
spines
(total): 2;
Dorsal
soft rays
(total): 0;
Anal
spines
: 0;
Anal
soft rays
: 0. A large, stout gulper shark with a broad snout, a long, low 1st dorsal fin and a high 2nd dorsal fin; pectoral rear tips moderately long; denticles low, flat and smooth (Ref.
5578
). Pearl-grey in color (Ref.
5578
).
A large deepwater dogfish of the outer continental shelves and upper slopes (Ref.
247
). Feeds on bony fish, small dogfish sharks, squids, and lobsters (Ref.
247
). Ovoviviparous (Ref.
50449
). Utilized as food fish and as fishmeal (Ref.
247
).
Ovoviviparous, embryos feed solely on yolk (Ref.
50449
). Number of young 1 to 6 per litter; size at birth 33-36 cm TL (Ref.
247
, Ref.
58048
). Distinct pairing with embrace (Ref.
205
).
Compagno, L.J.V.
, 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref.
247
)
IUCN Red List Status (Ref.
130435
)
Vulnerable (VU)
(A2bd+4bd); Date assessed:
01 December 2008
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Estimates based on models
Preferred temperature (Ref.
123201
): 5.3 - 12, mean 9 °C (based on 147 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00121 - 0.00572), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 4.4 ±0.63 se; based on food items.
Resilience (Ref.
120179
): Very Low, minimum population doubling time more than 14 years (Fec=1).
Fishing Vulnerability (Ref.
59153
): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649
): Moderate to high vulnerability (54 of 100).
Price category (Ref.
80766
):
Unknown
.
Nutrients (Ref.
124155
): Calcium = 5.05 [1.00, 27.00] mg/100g; Iron = 0.277 [0.066, 0.918] mg/100g; Protein = 19.9 [17.6, 22.1] %; Omega3 = 0.277 [0.101, 0.883] g/100g; Selenium = 18.6 [5.7, 55.4] μg/100g; VitaminA = 10.8 [2.3, 53.2] μg/100g; Zinc = 0.259 [0.125, 0.499] mg/100g (wet weight);
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