Mexican hornshark (Heterodontus mexicanus) fish species and information / pictures of Mexican hornshark - Heterodontus mexicanus

Mexican hornshark (Heterodontus mexicanus) fish species information

Scientific Name
Heterodontus mexicanus

Common Name
Mexican hornshark

Biology
Found on littoral continental waters, on rocky and sandy areas from close inshore down to at least 20 m depth. Reported to reach 165 cm (Ref. 37955). Feeds on crabs and demersal fishes including midshipman (Porichthtys) (Ref. 43278). Oviparous (Ref. 37955). Utilized as fishmeal.

Classification

Classified By

Taylor & Castro-Aguirre, 1972

Class

Sharks and Rays (Elasmobranchii)

Order

Bullhead and Horn sharks (Heterodontiformes)

Family

Bullhead / horn / Port Jackson sharks (Heterodontidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Mexico and from Costa Rica to Colombia, probably Ecuador and Peru (Ref. 43278)

Range

31°N - 18°S, 115°W - 80°W

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

50 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 50 m (Ref. 54547)

Trophic Level

4.15 s.e. 0.73 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

70.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5059 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries

Vulnerability

Low to moderate vulnerability (31 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be

Threat To Humans

Traumatogenic

IUCN Red List Status

Data deficient (DD)