Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Gadiformes (Cods) > Macrouridae (Grenadiers or rattails) > Macrourinae
Etymology: Coryphaenoides: Greek, koryphaina = dolphin fish + Suffix oides = similar to (Ref. 45335); acrolepis: From the Greek 'acros' meaning sharp and 'lepis' meaning scale (Ref. 6885).

Environment / Climate / Range Ecology

Marine; bathydemersal; non-migratory; depth range 300 - 3700 m (Ref. 50550), usually 900 - 1300 m (Ref. 56476). Deep-water; 1°C - 4°C (Ref. 1371), preferred ?; 62°N - 28°N, 134°E - 115°W (Ref. 1371)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North Pacific: northern Japan to Okhotsk and Bering seas, south along North American coasts to northern Mexico.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 46 - 65 cm
Max length : 104 cm TL male/unsexed; (Ref. 56527); common length : 46.9 cm TL male/unsexed; (Ref. 56476); max. published weight: 3.0 kg (Ref. 56476); max. reported age: 73 years (Ref. 35883)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 122; Anal spines: 0; Anal soft rays: 94. Head large, scaled completely except for a narrow ventrolateral strip on snout; eyes also large; snout short, pointed and with tubercular scales along its leading edge; chin with a small chin barbel. Body tapering to a point posteriorly from behind the insertion of the first dorsal-fin spine. Scales adherent, with 3 to 5 divergent rows of coarse spinules. Pyloric caeca 12 to 14. Overall color is gray to grayish-brown in young, turning to dark brown in adults; fins generally dark. Branchiostegal rays: 6-6 (Ref. 36385).

A benthopelagic mid-slope species, that appears to wander off slope bottoms into midwater (Ref. 1371). Adults feed on small fish, euphausiids, prawns, amphipods and cephalopods (Ref. 1371). Oviparous, with planktonic larvae (Ref. 36385).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 36385).

Main reference Upload your references | References | Coordinator : Iwamoto, Tomio | Collaborators

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. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00158 (0.00080 - 0.00313), b=3.20 (3.03 - 3.37), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic Level (Ref. 69278): 3.8 ±0.54 se; Based on food items.

Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years (K=0.02-0.04; tmax=73).

Prior r = 0.12, 2 SD range = 0.02 - 0.62, log(r) = -2.12, SD log(r) = 0.82, Based on: 1 K, 2 tgen, 1 tmax, records

Vulnerability (Ref. 59153): Very high vulnerability (79 of 100) .

Price category (Ref. 80766): Medium.

Coryphaenoides acrolepis (Bean, 1884)