Isogomphodon oxyrhynchus (Müller & Henle, 1839)

Daggernose shark

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

Classification	Elasmobranchii \| Carcharhiniformes \| Carcharhinidae
Synonyms	Carcharias oxyrhynchus, Carcharhinus oxyrhynchus, ... more
Common names	Requin bécune, Cazón picudo sudamericano, Daggertnæsehaj, ... more

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Image of Isogomphodon oxyrhynchus (Daggernose shark)

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AquaMaps Data sources: GBIF OBIS

Main reference

Compagno, L.J.V. 1984. (Ref. 244)
Other references | Biblio | Coordinator : Compagno, Leonard J.V. | Collaborators

Size / Weight / Age

Max length : 160 cm TL male/unsexed; (Ref. 34266); common length : 100.0 cm TL male/unsexed; (Ref. 5217); max. reported age: 12 years (Ref. 34266)

Environment

Demersal; brackish; marine; depth range ? - 15 m (Ref. 13608)

Climate / Range

Tropical; 12°N - 20°S, 63°W - 34°W (Ref. 244)

Western Atlantic: Trinidad, Guyana, Suriname, French Guiana, and Brazil.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Large number of teeth, great length of very narrow snout. Yellow-gray above and white below (Ref. 6032).

An inshore shark found over rocky bottoms, entering estuaries and river mouths. Feeds on small schooling fishes including herring, anchovies and croakers. Viviparous, generally 4 embryos per brood; size at birth 38 to 41 cm. 244 cm record unconfirmed.


IUCN Red List Status (Ref. 57073)	Threat to humans
Critically Endangered (CR) (A2ad+3d+4ad)	Harmless (Ref. 244)

Human uses
Fisheries: subsistence fisheries


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)

Very Low, minimum population doubling time more than 14 years (K=0.11-0.12; tm=5-7; tmax=12; Fec=4)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High to very high vulnerability (74 of 100)	Medium

Entered by Carpenter, Kent E.

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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