Agonus cataphractus, Hooknose : aquarium

Agonus cataphractus (Linnaeus, 1758)

Hooknose
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Agonus cataphractus   AquaMaps   Data sources: GBIF OBIS
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Image of Agonus cataphractus (Hooknose)
Agonus cataphractus
Picture by Salesjö, A.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Agonidae (Poachers) > Agoninae
Etymology: Agonus: Greek, a = without + Greek, gonos = race, generation (Ref. 45335).
More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 0 - 270 m (Ref. 58496). Temperate; 4°C - 8°C; 77°N - 43°N, 28°W - 46°E

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

Northeast Atlantic: English Channel to Finmarken and Murman coasts and White Sea, also the Shetlands, the Faroes and southern and southwestern coasts of Iceland; southern part of Baltic.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.0 cm TL male/unsexed; (Ref. 4700); common length : 14.0 cm TL male/unsexed; (Ref. 4700); max. reported age: 3.00 years (Ref. 722)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 5 - 6; Dorsal soft rays (total): 6 - 8; Anal soft rays: 5 - 7. Unpaired breast row of plates absent, but paired plate rows cover whole breast. Snout with a pair of strong spiny hooks; numerous barbels on branchiostegal membranes. Dorsal plates 31-34 (Ref. 232). Spiny and soft dorsal fins almost fused. No spines on the hind part of the head (Ref. 35388).
Body shape (shape guide): fusiform / normal.

Biology     Glossary (e.g. epibenthic)

Inhabits inshore waters, deeper waters in winter in Skaggerak, preferring sandy bottoms, rarely with stones. Maximum depth reported at 270 m (Ref. 28197). Temp. range: 4.0-8.0 °C. Feeds on bottom crustaceans and polychaetes. Matures after about 1 year; a few spawning in the second year (Ref. 722). The eggs are laid in seaweed (Ref. 9900). Spawns in February - April, female laying 2,500-3,000 yellow eggs with a diameter of 2 mm. Period of development is very long and 6-8 mm long pelagic larvae hatch after 10-11 months (Ref. 35388).

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

Main reference Upload your references | References | Coordinator | Collaborators

Ehrenbaum, E., 1936. Naturgeschichte und wirtschaftliche Bedeutung der Seefische Nordeuropas. Handb. Seefisch. Nordeurop. 2:337 p. (Ref. 40)

IUCN Red List Status (Ref. 130435: Version 2025-2)

  Least Concern (LC) ; Date assessed: 18 October 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest; aquarium: public aquariums
FAO - Publication: search | FishSource | Sea Around Us

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | National databases | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search |