Icosteus aenigmaticus Lockington, 1880

Ragfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Icosteidae
Synonyms	Acrotus willoughbyi, Schedophilopsis spinosus, ... more
Common names	Fan-tailed rag-fish, 褴鱼, Kludefisk, ... more

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Image of Icosteus aenigmaticus (Ragfish)

Picture by Van Orden, W.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Eschmeyer, W.N., E.S. Herald and H. Hammann. 1983. (Ref. 2850)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 213 cm TL male/unsexed; (Ref. 2850)

Environment

Bathypelagic; marine; depth range 0 - 1420 m (Ref. 50550), usually 18 - 732 m (Ref. 2850)

Climate / Range

Deep-water; 66°N - 32°N

North Pacific: Japan to southeastern Alaska and to Point Loma, southern California, USA.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 52 - 55; Anal spines: 0; Anal soft rays: 34 - 40. Pectorals rounded, pedunculate (Ref. 6885). Generally of a chocolate color (Ref. 6885). Young more robust, with an expanded and rounded caudal fin, 5 pelvic rays, and a brown and yellow irregularly blotched with faint purple color, dusky on fins (Ref. 6885).

Adults occur near bottom; juveniles in shallow water or offshore near the surface (Ref. 50277). Feeds on jellyfish (Ref. 50277), fishes and squids (Ref. 2850), as well as octopuses (Ref. 4525).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (K=0.13; Fec=293,000)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High to very high vulnerability (71 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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