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Polyprion americanus, Wreckfish : fisheries, gamefish
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Polyprion americanus
Female picture by
Cambraia Duarte, P.M.N. (c)ImagDOP
Teleostei (teleosts) >
Acropomatiformes
(Oceanic basses) >
Polyprionidae
(Wreckfishes)
Etymology:
Polyprion:
Greek, poly = a lot of + Greek, prion = saw (Ref.
45335
)
.
More on authors:
Bloch
&
Schneider
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; oceanodromous (Ref.
51243
); depth range 40 - 600 m (Ref.
7251
), usually 100 - 200 m (Ref.
36731
). Deep-water; 70°N - 55°S, 82°W - 179°E
Eastern Atlantic: Norway to South Africa (Ref.
6633
), including the Mediterranean, Canary Islands, Madeira, Cape Verde, and Tristan da Cunha. Western Atlantic: Newfoundland, Canada and Gulf of Maine to North Carolina, USA (Ref.
7251
). Recorded from Uruguay to Argentina (Ref.
9050
). Western Indian Ocean: St. Paul and Amsterdam islands (Ref.
6633
). Southwest Pacific: New Zealand (Ref.
5755
,
9072
).
Length at first maturity / Size / Weight / Age
Maturity: L
m
77.9
  range ? - 90 cm
Max length : 210 cm TL male/unsexed; (Ref.
7251
); common length : 80.0 cm TL male/unsexed; (Ref.
3397
); max. published weight: 100.0 kg (Ref.
35388
); max. reported age: 80 years (Ref.
127279
)
Dorsal
spines
(total): 10 - 12;
Dorsal
soft rays
(total): 11-13;
Anal
spines
: 3;
Anal
soft rays
: 8 - 10. Bluish grey above, paler below with a silvery sheen; fins blackish brown (Ref.
6633
). Juveniles have black blotches on head and body (Ref.
6633
). Body tall, compressed. Big mouth with big head and a rough bony ridge across upper part of the gill cover (Ref.
35388
).
Adults prefer to inhabit caves and shipwrecks (Ref.
27121
). Juveniles congregate below floating objects (Ref.
27121
). Usually solitary. Feed on large crustaceans, cephalopods and benthic fishes (Ref.
27121
). Spawn in the summer (Ref.
35388
). Are primary gonochorists (Ref.
58421
). Marketed fresh or frozen; eaten steamed, fried, broiled, boiled, microwaved and baked (Ref.
9988
). Minimum depth reported from Ref. 6633.
Primary gonochorists (Ref.
58421
).
Wheeler, A.
, 1992. A list of the common and scientific names of fishes of the British Isles. J. Fish Biol. 41(suppl.A):1-37. (Ref.
5204
)
IUCN Red List Status (Ref.
130435
)
Data deficient (DD)
; Date assessed:
30 April 2003
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; gamefish: yes
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landings
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 5.2 - 19, mean 9.4 °C (based on 672 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.8125 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01318 (0.00968 - 0.01796), b=3.00 (2.91 - 3.09), in cm total length, based on LWR estimates for this species (Ref.
93245
).
Trophic level (Ref.
69278
): 4.1 ±0.64 se; based on food items.
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (K=0.05-0.08; tmax=76; tm=9-10 yrs estimated from VBGF; Fec=3 million).
Fishing Vulnerability (Ref.
59153
): Very high vulnerability (78 of 100).
Climate Vulnerability (Ref.
125649
): Moderate to high vulnerability (50 of 100).
Price category (Ref.
80766
):
Low
.
Nutrients (Ref.
124155
): Calcium = 9.7 [6.1, 21.1] mg/100g; Iron = 0.354 [0.174, 0.670] mg/100g; Protein = 19.6 [19.0, 20.3] %; Omega3 = 0.427 [0.332, 0.549] g/100g; Selenium = 25 [11, 55] μg/100g; VitaminA = 7.95 [1.81, 35.92] μg/100g; Zinc = 0.253 [0.178, 0.380] mg/100g (wet weight); based on
nutrient studies.
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