Brochiraja spinifera is a species of cartilaginous fish of the genus Brochiraja of the Arhynchobatidae family of the stingrays . They live in the western part of the Pacific Ocean in the waters of New Zealand. They are found at a depth of up to 1460 m. Their large, flattened pectoral fins form a rounded disk with a triangular snout. The maximum recorded length is 80 cm. Eggs are laid. They are not the target fishing target [1] [2] [3] .
| Brochiraja spinifera |
 |
| Scientific classification |
|---|
| No rank : | Bilateral symmetrical |
| Family: | One-Feathered Rays |
| View: | Brochiraja spinifera |
|
| International scientific name |
|---|
Brochiraja spinifera ( Garrick & Paul , 1974) |
| Synonyms |
|---|
- Bathyraja spinifera Garrick & Paul, 1974
- Notoraja spinifera (Garrick and Paul, 1974)
- Pavoraja spinifera (Garrick & Paul, 1974)
|
| Security status |
|---|
Not enough data IUCN Data Deficient : 161420 |
|
Content
The species was first scientifically described in 1974 as Bathyraja spinifera [4] . The holotype is a male 80.4 cm long, caught in the waters of New Zealand ( ) at a depth of 550-560 m. Paratypes: females 61 , 9–71 cm, caught there at a depth of 530–730 m [5] . Species epithet comes from the words lat. spinus - “blackthorn”, “thorny bush” and other Greek. φορούν - “wear”. Brochiraja spinifera from other rays of the genus Brochiraja by coloration, the location of the scales and the number of vertebrae and rays of the pectoral fins. They are closely related to the stingrays of the genus Notoraja and differ from other representatives of the family of the single-stingrays by the presence of a forked spike in the middle of the distal part of the rostral cartilage, which was reduced in adults [2] .
These ramps live on the continental slope off the coast of New Zealand. They are found at a depth of 170-1460 m [3] . The highest concentration is observed in the range 300–1200 m [2] .
The wide and flat pectoral fins of these rays form a rounded disk with a wide triangular snout. On the ventral side of the disc are 5 gill slits, nostrils and mouth. On the thin tail there are lateral folds. These skates have 2 reduced dorsal fins and a reduced caudal fin [1] . The snout is shorter than that of other rays of the genus Brochiraja. The skin is smooth, soft and flabby. A strip of spines runs along the back of the disc and tail. The dorsal surface of the disc is dark brown in color [6] . The maximum recorded length is 64 cm [2] .
These stingrays lay eggs enclosed in a four-pointed horn capsule [3] .
These ramps are not the target fishing target. In the area at depths, an Atlantic big-headed fishery is being fished. These stingrays may be caught as by- catch . Caught fish are probably thrown overboard, the mortality rate is high. The data for the assessment of the conservation status by the International Union for Conservation of Nature are insufficient [2] .
- ↑ 1 2 Froese, Rainer, and Daniel Pauly, eds. Family Arhynchobatidae - Skates (Neopr.) . FishBase (2014).
- ↑ 1 2 3 4 5 Brochiraja spinifera . The IUCN Red List of Threatened Species .
- ↑ 1 2 3 Brochiraja spinifera in the FishBase database.
- ↑ Garrick JAF & Paul LJ The taxonomy of New Zealand Skates (Suborder Rajoidea), with descriptions of three new species // Journal of the Royal Society of New Zealand. - 1974. - Vol. 4, No. (3) . - P. 345-377.
- ↑ Brochiraja spinifera (neopr.) . Shark-References. Date of treatment February 15, 2016.
- ↑ Cox, G. & Francis, MP Sharks and rays of New Zealand. - England: Canterbury University Press, 1997 .-- P. 68.
