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Pterygotrigla ryukyuensis, Ryukyu gurnard
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Ryukyu gurnard
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Teleostei (teleosts) >
Perciformes/Scorpaenoidei
(Scorpionfishes) >
Triglidae
(Searobins) > Pterygotriglinae
Etymology:
Pterygotrigla:
Greek, pterigion, diminutive of pteryx = wing, fin + Greek, trigla, es = red mullet (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 500 m (Ref.
9771
). Deep-water
Indo-West Pacific: from Japan southward through the South China Sea, Indonesia, and northwestern Australia.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref.
559
)
Dorsal
spines
(total): 7 - 9;
Dorsal
soft rays
(total): 11-12;
Anal
soft rays
: 11 - 12. This species is distinguished by having the following characters: absence of scales on the nape, prepectoral area, breast, or interpelvic area; long and strong cleithral spine (16-29 % SL), P1 12+3; a slight indication of possible hyperostosis of the first infraorbital bone and cleithral spine (Ref.
91768
).
A rare (Ref.
9771
), benthic (Ref.
75154
) species that inhabits continental shelves and insular areas.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Richards, W.J. and T. Yato
, 2012. The tropical species of the subgenus
Pterygotrigla
(Pisces: Triglidae:
Pterygotrigla
) with description of a new species. Zootaxa 3484:53-64. (Ref.
91768
)
IUCN Red List Status (Ref.
130435
)
Not Evaluated
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 13.5 - 26.8, mean 20.7 °C (based on 592 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00515 - 0.03077), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (20 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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