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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Trichiuridae (Cutlassfishes) > Lepidopinae
Etymology: Assurger: Latin, assurgero = to rise (Ref. 45335).

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 150 - 400 m (Ref. 6181). Tropical, preferred ?; 37°N - 37°S, 180°W - 180°E (Ref. 6181)

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

Atlantic Ocean: Walvis Ridge, off Puerto Rico and Uruguay. Indian Ocean: off western Australia. Pacific Ocean: off New Guinea, southern Japan, Midway Island, California, Nazca and Sala y Gomez Ridge.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 250 cm SL male/unsexed; (Ref. 9351); common length : 200 cm SL male/unsexed; (Ref. 9351)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 116-123; Anal spines: 2; Anal soft rays: 74 - 87; Vertebrae: 125 - 129. Body very elongate and compressed. Head profile straight or scarcely convex, with sagittal crest strongly elevated. Both jaws have a short dermal process; the lower jaw longer than the upper jaw. The dorsal fin has a few weak anterior spines that hardly differ from the soft rays. Body color silvery, dorsal fin membrane black before the third to the fourth soft ray.

Probably benthopelagic from 150 to 400 m, juveniles epipelagic or mesopelagic. Feeds on fishes (including Engraulis mordax and Merluccius productus off California) and squids. Occasionally hooked, captured in nets, or found washed ashore. No special fishery.

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

Main reference Upload your references | References | Coordinator : Parin, Nikolay V. | Collaborators

Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: subsistence fisheries

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00078 (0.00035 - 0.00173), b=3.09 (2.89 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 4.5 ±0.69 se; Based on food items.

Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): High to very high vulnerability (67 of 100) .

Price category (Ref. 80766): Medium.

Assurger anzac (Alexander, 1917)