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Telatrygon zugei, Pale-edged stingray : fisheries
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Telatrygon zugei
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Devarapalli, P.
Elasmobranchii (sharks and rays) >
Myliobatiformes
(Stingrays) >
Dasyatidae
(Stingrays) > Dasyatinae
Etymology:
Telatrygon:
Name from Latin 'telum' for javelin, spear, arrow, dart and Greek 'trygon' for stingray; referring to the long, narrowly pointed snout possessed by all members of the genus.
.
More on authors:
Müller
&
Henle
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; demersal; amphidromous (Ref.
51243
)(Ref.
114953
). Tropical
Northwest Pacific: Vietnam to Japan, probably in the Philipinnes and Thailand.
Length at first maturity / Size / Weight / Age
Maturity: L
m
18.7
, range 19 - ? cm
Max length : 29.0 cm WD male/unsexed; (Ref.
109651
)
Feed on bottom-dwelling organisms (Ref.50449); primarily small crustaceans, but also small fishes (Ref.58048). Ovoviviparous (Ref.
50449
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialized structures (Ref.
50449
). Distinct pairing with embrace (Ref.
205
). Gives birth to litters of 1-4 pups; born at 7-10 cm WD. No reproductive synchronicity (Ref.58048).
Last, P.R., G.J.P Naylor and B.M. Manjaji-Matsumoto
, 2016. A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights. Zootaxa 4139(3):345-368. (Ref.
109651
)
IUCN Red List Status (Ref.
130435
)
Vulnerable (VU)
(A2cd); Date assessed:
28 August 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Zoological Record
Estimates based on models
Preferred temperature (Ref.
123201
): 23.2 - 29.1, mean 28.3 °C (based on 1212 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00209 (0.00112 - 0.00389), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.5 ±0.37 se; based on food items.
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153
): Very high vulnerability (90 of 100).
Price category (Ref.
80766
):
Low
.
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