Gummy shark (Mustelus antarcticus) fish species and information / pictures of Gummy shark - Mustelus antarcticus

Gummy shark (Mustelus antarcticus) fish species information

Scientific Name
Mustelus antarcticus

Common Name
Gummy shark

Biology
An inshore and offshore shark found from intertidal waters (Ref. 13563) to a depth of 350 m. Feeds on crustaceans, marine worms and small fishes (Ref. 13563), also cephalopods. Forms schools by sex and size . Ovoviviparous (Ref. 50449). Newborn and juvenile gummy sharks are found in many areas across southern Australia, but no well-defined nursery areas have been identified. These sharks are capable of long migrations, females traveling longer distances than males (Ref. 6390). Utilized fresh for human consumption (Ref. 6871). Maximum length data for female species is taken from Ref. 6390.

Classification

Classified By
G?nther, 1870
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Houndsharks (Triakidae)

Distribution

Region
Eastern Indian Ocean
Distribution
Eastern Indian Ocean: endemic to southern Australia, from Western Australia through Bass Strait to Tasmania and northern New South Wales. Possibly extends northward to southern Queensland and Shark Bay in Western Australia. Confused with another undescribed species whose southern distribution extends to Dampier (20?40'S) (possibly Shark Bay) in the west and Bowen (20?S) (possibly Coffs Harbor) in the east. There is a single stock of gummy sharks in the area, however, regional stock differences might still exist.
Range
28°S - 44°S

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
350 m
Zone
demersal
Environment
Marine; demersal; oceanodromous (Ref. 51243); depth range ? - 350 m (Ref. 6871), usually ? - 80 m (Ref. 6871)
Trophic Level
4.31 s.e. 0.53 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
157 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial; gamefish: yes
Vulnerability
Very high vulnerability (81 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (K=0.09-0.30; tm=4-6.9; tmax=16; Fec=2)
Threat To Humans
  Harmless (Ref. 13563)
IUCN Red List Status
  Least Concern (LC)