The shortnose sawshark, (Pristiophorus nudipinnis) or southern sawshark, is a sawshark of the family Pristiophoridae. The body of this shark is slightly compressed, and its rostrum is narrow. The two dorsal fins are almost identical in size. In color, the dorsal side of this sawshark tends to be uniformly slate gray, with few or no markings. The ventral side is pale white or cream. Females reach around 124 cm (49 in) long, and males reach around 110 cm (43 in) long. These sharks can live up to 9 years.
Behavior
Leading a benthic lifestyle, the shortnose sawshark primarily feeds on benthic invertebrates and small bony fish. Like other sawsharks, this species' reproduction is ovoviviparous. It gives birth biannually to a litter of 7-14 pups. The size of pups at birth is about 35 cm (14 in).
Conservation
Because of stable commercial catch rates, reduced Total Allowable Catch, protection in Victorian waters, and a high rate of biological productivity, the shortnose sawshark is listed as Least Concern by the IUCN Red List. While the shortnose sawshark is fairly popular commercially, the largest threat to the species is being caught as bycatch in gillnet operations. Because of its habitat, size, and behavior, this species is considered to be harmless to humans.
References
External links
|
|---|
|
|
|---|
Hemigaleidae (Weasel sharks) | | Hemipristis | |
|---|
| Chaenogaleus |
- Hooktooth shark (C. macrostoma)
|
|---|
| Hemigaleus | |
|---|
| Paragaleus |
- Whitetip weasel shark (P. leucolomatus)
- Atlantic weasel shark (P. pectoralis)
- Slender weasel shark (P. randalli)
- Straight-tooth weasel shark (P. tengi)
|
|---|
|
|---|
| Leptochariidae | |
|---|
Proscylliidae (Finback sharks) | | Ctenacis |
- Harlequin catshark (C. fehlmanni)
|
|---|
| Eridacnis | |
|---|
| Proscyllium |
- Graceful catshark (P. habereri)
- P. venustum
|
|---|
|
|---|
| Pseudotriakidae | |
|---|
Sphyrnidae (Hammerhead sharks) | |
|---|
Triakidae (Houndsharks) | | Furgaleus | |
|---|
| Galeorhinus | |
|---|
| Gogolia |
- Sailback houndshark (G. filewoodi)
|
|---|
| Hemitriakis |
- Deepwater sicklefin hound shark (H. abdita)
- Sicklefin hound shark (H. falcata)
- Japanese topeshark (H. japanica)
- Whitefin topeshark (H. leucoperiptera)
- Ocellate topeshark (Hemitriakis Sp.A)
|
|---|
| Hypogaleus |
- Blacktip tope (H. hyugaensis)
|
|---|
| Iago |
- Longnose houndshark (I. garricki)
- Bigeye houndshark (I. omanensis)
- Lowfin houndshark (Iago Sp.A)
|
|---|
Mustelus (Smooth-hounds) | |
|---|
| Scylliogaleus |
- Flapnose houndshark (S. quecketti)
|
|---|
| Triakis | |
|---|
|
|---|
| Carcharhinidae |
- Large family listed below
|
|---|
| Scyliorhinidae |
- Large family listed below
|
|---|
|
|
|
Family Scyliorhinidae (Catsharks) |
|---|
| Apristurus | |
|---|
| Asymbolus |
- Australian spotted catshark (A. analis)
- A. funebris
- Western spotted catshark (A. occiduus)
- Pale spotted catshark (A. pallidus)
- A. parvus
- A. rubiginosus
- Variegated catshark (A. submaculatus)
- Gulf catshark (A. vincenti)
|
|---|
| Atelomycterus | |
|---|
| Aulohalaelurus |
- New Caledonia catshark (A. kanakorum)
- Australian blackspotted catshark (A. labiosus)
|
|---|
| Cephaloscyllium | |
|---|
| Cephalurus | |
|---|
| Figaro | |
|---|
| Galeus | |
|---|
| Halaelurus | |
|---|
| Haploblepharus | |
|---|
| Holohalaelurus | |
|---|
| Parmaturus |
- White-tip catshark (P. albimarginatus)
- White-clasper catshark (P. albipenis)
- Beige catshark (P. bigus)
- Campeche catshark (P. campechiensis)
- Velvet catshark (P. lanatus)
- McMillan's catshark (P. macmillani)
- Blackgill catshark (P. melanobranchus)
- Salamander shark (P. pilosus)
- Filetail catshark (P. xaniurus)
- Shorttail catshark (Parmaturus sp. A)
|
|---|
| Pentanchus |
- Onefin catshark (P. profundicolus)
|
|---|
| Poroderma | |
|---|
| Schroederichthys | |
|---|
| Scyliorhinus | |
|---|
|
|
|
|
|
|
|
|
|
|---|
Centrophoridae (Gulper sharks) | |
|---|
| Dalatiidae | |
|---|
| Etmopteridae | |
|---|
Oxynotidae (Rough sharks) | |
|---|
Somniosidae (Sleeper sharks) | | Centroscymnus | |
|---|
| Centroselachus | |
|---|
| Proscymnodon |
- Largespine velvet dogfish (P. macracanthus)
- Plunket shark (P. plunketi)
|
|---|
| Scymnodalatias | |
|---|
| Scymnodon | |
|---|
| Somniosus | |
|---|
| Zameus | |
|---|
|
|---|
Squalidae (Dogfish sharks) | | Cirrhigaleus |
- Roughskin spurdog (C. asper)
- Mandarin dogfish (C. barbifer)
|
|---|
Squalus (Spurdogs) | |
|---|
|
|---|
|
|
|
Taxon identifiers |
|---|
| Pristiophorus nudipinnis | |
|---|