Actinopteri (ray-finned fishes) > Gadiformes
(Cods) > Gadidae
(Cods and haddocks)
Etymology: Micromesistius: Greek, mikros = small + greek, mesos = middle + Greek, istion = sail (Ref. 45335).
More on author: Norman.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; oceanodromous (Ref. 51243); depth range 50 - 900 m (Ref. 27363), usually 200 - 400 m (Ref. 7061). Temperate; 37°S - 65°S, 165°E - 34°W (Ref. 54589)
There are 2 disjunct populations. Micromesistius australis australis occurs around the Falkland Islands and Argentine Patagonia in the southwest Atlantic; off Chile in the southeast Pacific; also off South Georgia, South Shetland and South Orkney islands. Micromesistius australis pallidus occurs around the South Island of New Zealand.
Length at first maturity / Size / Weight / Age
Maturity: Lm 36.5, range 33 - 40 cm
Max length : 90.0 cm TL male/unsexed; (Ref. 1371); common length : 60.0 cm TL male/unsexed; (Ref. 1371); max. published weight: 850.00 g (Ref. 4883); max. reported age: 30 years (Ref. 7059)
Invades shelf waters during summer and concentrating over the continental slope in winter. Forms schools (Ref. 9072). The young feed on euphausiids and amphipods and occasionally on copepods, cephalopods and small fish. Utilized in frozen blocks and as fishmeal. In Japan used as suerii (minced meat) for karaoke (fish cake) (Ref. 27363). Can be fried, microwaved and baked (Ref. 9988).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, sexes are separate (Ref. 205).
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. 125652)
Threat to humans
Fisheries: highly commercial
Estimates based on models
Preferred temperature (Ref. 115969
): 3.4 - 9.1, mean 5.8 °C (based on 109 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00223 - 0.00619), b=3.14 (2.99 - 3.29), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.48 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18; tm=2-5; tmax=30).
Prior r = 0.54, 95% CL = 0.36 - 0.82, Based on 5 stock assessments.
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (52 of 100) .
Climate Vulnerability (Ref. 125649
): Moderate to high vulnerability (53 of 100) .
Nutrients (Ref. 124155
): Calcium = 46.3 [15.0, 124.7] mg/100g ; Iron = 0.403 [0.151, 1.050] mg/100g ; Protein = 16.7 [14.9, 18.8] % ; Omega3 = 0.262 [0.119, 0.569] g/100g ; Selenium = 9.68 [2.98, 29.49] μg/100g ; VitaminA = 6.27 [1.55, 24.10] μg/100g ; Zinc = 0.785 [0.421, 1.733] mg/100g (wet weight); based on nutrient studies.