Heterodontus francisci   (Girard, 1855)

Horn shark
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Elasmobranchii | Heterodontiformes | Heterodontidae
Synonyms
Common names
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Image of Heterodontus francisci (Horn shark)
Picture by Gotshall, D.W.
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AquaMaps     Data sources: GBIF OBIS
Main reference
Size / Weight / Age
Max length : 122 cm TL male/unsexed; (Ref. 247); common length : 97.0 cm TL male/unsexed; (Ref. 247); max. reported age: 12 years (Ref. 72467)
Length at first maturity
Lm ?, range 59 - ? cm
Environment
Demersal; marine; depth range 2 - 150 m (Ref. 9253), usually 2 - 11 m (Ref. 9253)
Climate / Range
Subtropical; 37°N - 15°S, 124°W - 75°W
Distribution
Eastern Pacific: central California, USA to the Gulf of California, and probably Ecuador and Peru.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Biology
    Glossary (e.g. epibenthic)
Sluggish, nocturnal, and mostly solitary species. Inhabit rocky bottoms, kelp beds, sandy draws between rocks, on sand flats, deep crevices and small caves and also large underwater caverns. Adults tend to return to the same resting place every day (Ref. 43278). Feed on benthic invertebrates, especially sea urchins, crabs and probably abalone, also fishes. Oviparous (Ref. 50449). May bite back when harassed. Has broad muscular paired fins used as limbs for clambering on the bottom. Catch reduced to fish meal; fin spines used in production of jewels.
IUCN Red List Status (Ref. 57073)
Threat to humans
  Traumatogenic (Ref. 247)
Human uses
Fisheries: minor commercial; aquarium: public aquariums
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Estimation of some characteristics with mathematical models
Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5059
Trophic Level (Ref. 69278)
3.2 s.e. 0.43 Based on diet studies.
Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (Fec=20)
Vulnerability (Ref. 59153)
Price category (Ref. 80766)
High vulnerability (60 of 100)

Entered by Carpenter, Kent E.
Modified by Ortañez, Auda Kareen




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Page last modified by : celloran - 20 April 2010

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