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Oxynotus bruniensis, Prickly dogfish
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Oxynotus bruniensis
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FAO
Elasmobranchii (sharks and rays) >
Squaliformes
(Sleeper and dogfish sharks) >
Oxynotidae
(Rough sharks)
Etymology:
Oxynotus:
oxys
(Gr.), sharp;
notos
(Gr.), back, referring to its keeled back (“dorso carenato”). (
See ETYFish
)
;
bruniensis:
-ensis
, Latin suffix denoting place: the shore of Bruny Island, Tasmania, where holotype was discovered in a “dried … but fair state of preservation”. (
See ETYFish
)
.
More on author:
Ogilby
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 45 - 1070 m (Ref.
26346
), usually 350 - 650 m (Ref.
6871
). Deep-water; 31°S - 55°S, 125°E - 172°W (Ref.
54691
)
Southwest Pacific: confined to temperate waters off southern Australia and New Zealand.
Length at first maturity / Size / Weight / Age
Maturity: L
m
 
?
, range 60 - ? cm
Max length : 65.0 cm TL male/unsexed; (Ref.
122636
); 74.0 cm TL (female); max. published weight: 6.6 kg (Ref.
122636
)
Anal
spines
: 0;
Anal
soft rays
: 0. Uniform grey-brown coloration; short, blunt snout; high sail-like dorsal fins with spines and broad apices, first dorsal spine inclined backward; high, thick triangular body with large, rough denticles; circular spiracles; lanceolate upper teeth, lower blade-like teeth in less than 12 rows (Ref.
247
).
Found on outer continental and insular shelves and uppermost slopes (Ref.
247
). Probably feeds on bottom invertebrates and fishes. Ovoviviparous (Ref.
205
). Taken incidentally with bottom trawls but probably not used (Ref.
247
).
Ovoviviparous, with 7 young in a litter (Ref.
247
). Size at birth about 24 cm (Ref.
6871
). Distinct pairing with embrace (Ref.
205
).
Compagno, L.J.V.
, 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref.
247
)
IUCN Red List Status (Ref.
130435
)
Near Threatened (NT)
(A2d); Date assessed:
07 July 2017
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 6.2 - 10.4, mean 8 °C (based on 150 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00160 - 0.00860), b=3.15 (2.94 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 4.0 ±0.62 se; based on food items.
Resilience (Ref.
120179
): Very Low, minimum population doubling time more than 14 years (Fec=7).
Fishing Vulnerability (Ref.
59153
): Moderate to high vulnerability (50 of 100).
Nutrients (Ref.
124155
): Calcium = 8.32 [1.56, 44.88] mg/100g; Iron = 0.283 [0.065, 0.939] mg/100g; Protein = 18.8 [17.0, 20.6] %; Omega3 = 0.302 [0.100, 0.969] g/100g; Selenium = 14.1 [4.0, 44.8] μg/100g; VitaminA = 13.4 [2.6, 67.1] μg/100g; Zinc = 0.414 [0.198, 0.828] mg/100g (wet weight);
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