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Gadiformes (Cods) >
Merlucciidae (Merluccid hakes)
Etymology: Merluccius: Latin, mar, maris = the sea + Latin, lucius = pike (Ref. 45335).
Taxonomic Remarks
Reported as M. polylepis in Patagonian waters.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser benthopelagisch; ozeanodrom (Ref. 51243); tiefenbereich 28 - 1000 m (Ref. 58489). Subtropical; 33°S - 59°S, 165°E - 66°W (Ref. 58452)
Circumglobal in the southern hemisphere (Ref. 7300). Two distinct groups. New Zealand population: Chatham Rise, Campbell Plateau and South Island northward to the East Cape. Patagonian population: Chiloé Island in the Pacific, southward around the southern tip of South America to the continental shelf to 59°S, and the slope north to 38°S in the Atlantic.
Länge bei der ersten Reifung / Größe / Gewicht / Alter
Geschlechtsreife: Lm 74.7, range 75 - 85 cm
Max length : 155 cm SL Männchen/unbestimmt; (Ref. 58452); common length : 80.0 cm TL Männchen/unbestimmt; (Ref. 1371); max. veröff. Alter: 30 Jahre (Ref. 9072)
Rückenflossenstacheln (insgesamt) : 1; Rückenflossenweichstrahlen (insgesamt) : 48 - 57; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 40 - 46; Wirbelzahl: 53 - 58. Body more slender than other hakes. Pectoral fins long and slender, stripe reaching anal fin in young individuals but not in fish over 50 cm in SL. Gill rakers short and thick with blunt tips. Color is steel gray on back grading to silvery white ventrally.
Body shape (shape guide): elongated; Cross section: oval.
Found at depths between 415 and 1000 m in New Zealand waters, and 62 to 800 m in South American waters. The Patagonian population feeds on southern blue whiting, whiptail, nototheniids and squids. The New Zealand population feeds mainly on fishes (especially gadoids), squids, euphausiids and benthic organisms. Adults probably migrate southward during the southern summer for feeding and return to the north in winter for spawning (Ref. 1371). Spawning takes place from August to September on the western coast of South Island, from September to November in the northern part of the Campbell Plateau, and between November and January on Chatham Rise (Ref. 58452). Utilized as food fish and fishmeal.
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 Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: hoch kommerziell
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Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 6.2 - 13.3, mean 8.6 °C (based on 112 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00331 - 0.00479), b=3.10 (3.05 - 3.15), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophische Ebene (Ref.
69278): 4.3 ±0.74 se; based on food items.
Generation time: 5.7 (4.2 - 10.7) years. Estimated as median ln(3)/K based on 15
growth studies.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.07-0.19; tm=6-10; tmax=30).
Prior r = 0.24, 95% CL = 0.16 - 0.35, Based on 4 full stock assessments.
Anfälligkeit der Fischerei (Ref.
59153): High vulnerability (56 of 100).
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Klimaanfälligkeit (Ref.
125649): High vulnerability (61 of 100).
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Nährstoffe (Ref.
124155): Calcium = 14.6 [5.9, 47.3] mg/100g; Iron = 0.536 [0.198, 1.332] mg/100g; Protein = 17.9 [16.7, 19.0] %; Omega3 = 0.148 [0.083, 0.263] g/100g; Selenium = 84.2 [34.5, 207.6] μg/100g; VitaminA = 11.5 [3.1, 40.8] μg/100g; Zinc = 0.314 [0.198, 0.493] mg/100g (wet weight); based on
nutrient studies.