Thornback guitarfish (Platyrhinoidis triseriata) fish species and information / pictures of Thornback guitarfish - Platyrhinoidis triseriata

Thornback guitarfish (Platyrhinoidis triseriata) fish species information

Scientific Name
Platyrhinoidis triseriata

Common Name
Thornback guitarfish

Biology
Inhabits fine sand to mud bottom, often near kelp beds and sometimes abundant on mud flats of coastal bays. Often buries itself in bottom sediments. Ranges from the intertidal zone to 50 m depth (Ref. 12951). Solitary or in small groups (Ref. 12951). Feeds on small sand-dwelling crustaceans, worms and mollusks. Ovoviviparous (Ref. 50449), with 1 to 15 pups in a litter (Ref. 48844). Possesses ampullary electroreceptors with a region of maximum sensitivity of 5-15 Hz (Ref. 10011).

Classification

Classified By
Jordan & Gilbert, 1880
Class
Sharks and Rays (Elasmobranchii)
Order
Skates and Rays (Rajiformes)
Family
Guitarfishes (Rhinobatidae)

Distribution

Region
Eastern Pacific
Distribution
Eastern Pacific: San Francisco, USA to Baja California, Mexico.
Range
38°N - 22°N

Environment

Climate
Subtropical
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. 12951)
Trophic Level
3.42 s.e. 0.42 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
91.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Moderate vulnerability (42 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Fec = 1)
Threat To Humans
  Harmless (Ref. 12951)
IUCN Red List Status
  Least Concern (LC)