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Macruronus magellanicus, Patagonian grenadier : fisheries
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Macruronus magellanicus
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INIDEP
Teleostei (teleosts) >
Gadiformes
(Cods) >
Macruronidae
(Blue grenadiers)
Etymology:
Macruronus:
Greek, makros = great + Greek, onos = hake
.
More on author:
Lönnberg
.
Issue
This species is synonym of
Macruronus novaezelandiae
(Hector, 1871) in Eschmeyer (CofF ver. Jan. 2012: Ref.
89336
). Waiting for more confirmation. Please send references or more studies are needed.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic; oceanodromous (Ref.
51243
); depth range 30 - 500 m (Ref.
1371
). Subtropical; 34°S - 60°S, 79°W - 52°W (Ref.
1371
)
Southeast Pacific and Southwest Atlantic: off southern Chile and Argentina.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 54 - ? cm
Max length : 115 cm TL male/unsexed; (Ref.
7063
); common length : 80.0 cm TL male/unsexed; (Ref.
1371
); max. published weight: 5.0 kg (Ref.
1371
); max. reported age: 19 years (Ref.
122851
)
Dorsal
spines
(total): 1;
Dorsal
soft rays
(total): 100-113;
Anal
spines
: 0;
Anal
soft rays
: 83 - 90. Dorsal part of body purplish blue, belly silvery with a slight bluish tinge; small melanophores scattered on fin membrane of dorsal and anal fins; inside of mouth blackish (Ref.
1371
).
Schooling species which are concentrated on the outer part of the continental shelf (Ref.
1371
). Feeds mainly on fish (herring, anchovies, lantern fishes), also on mysids, cephalopods, euphausiids and amphipods (Ref.
1371
). Migrates southward in spring and summer and northward in winter (Ref.
1371
). Utilized fresh, frozen and for fishmeal (Ref.
1371
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba
, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref.
1371
)
IUCN Red List Status (Ref.
130435
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: highly commercial
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Estimates based on models
Preferred temperature (Ref.
123201
): 4.5 - 9.7, mean 6.5 °C (based on 311 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00228 - 0.00729), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.8 ±0.55 se; based on food items.
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (K=0.09-0.1).
Prior r = 0.28, 95% CL = 0.16 - 0.48, Based on 1 stock assessment.
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (41 of 100).
Climate Vulnerability (Ref.
125649
): High to very high vulnerability (69 of 100).
Price category (Ref.
80766
):
Medium
.
Nutrients (Ref.
124155
): Calcium = 35.8 [16.1, 79.9] mg/100g; Iron = 0.788 [0.361, 1.658] mg/100g; Protein = 17.5 [15.2, 19.7] %; Omega3 = 0.189 [0.091, 0.377] g/100g; Selenium = 60.1 [27.6, 133.1] μg/100g; VitaminA = 12.4 [3.5, 43.2] μg/100g; Zinc = 0.502 [0.326, 0.773] mg/100g (wet weight); based on
nutrient studies.
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