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Pygmy shark (Euprotomicrus bispinatus) fish species and information / pictures of Pygmy shark - Euprotomicrus bispinatus

Pygmy shark (Euprotomicrus bispinatus) fish species information

Scientific Name
Euprotomicrus bispinatus

Common Name
Pygmy shark

Biology
Epi-, meso-, and perhaps bathypelagic at 1->400 m (Ref. 58302). Occurs at or near the surface at night, descending to below 400 m (possibly as deep as 1,800 m) during the day (Ref. 31367). Feeds on squid, bony fishes, and crustaceans (Ref. 5578). Ovoviviparous (Ref. 205), with 8 young per litter, size at birth between 6 and 10 cm (Ref. 247). Caught with dip-nets and buckets at night (Ref. 6577).

Classification

Classified By
Quoy & Gaimard, 1824
Class
Sharks and Rays (Elasmobranchii)
Order
Bramble, Sleeper and Dogfish sharks (Squaliformes)
Family
Sleeper sharks (Dalatiidae)

Distribution

Region
Circumglobal
Distribution
Circumglobal: In subtropical to temperate waters. Southeast Atlantic: near Ascension Island, east of Fernando de Noronha Island, and west of Cape of Good Hope, South Africa. Indian Ocean: Madagascar to Western Australia. North Pacific: Midway Islands, Hawaiian Islands to off California, USA. South Pacific: between New Zealand, Phoenix Island and southern Chile.
Range
38°N - 54°S

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
1800 m
Zone
bathyalpelagic
Environment
Marine; bathypelagic; depth range 0 - 1800 m (Ref. 31367)
Trophic Level
4.11 s.e. 0.57 Based on diet studies.
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
22.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0010 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Low vulnerability (14 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Fec=8)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)