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Hemitriakis leucoperiptera, Whitefin topeshark : fisheries
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Hemitriakis leucoperiptera
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Elasmobranchii (sharks and rays) >
Carcharhiniformes
(Ground sharks) >
Triakidae
(Houndsharks) > Galeorhininae
Etymology:
Hemitriakis:
hemi-
, from
hemisys
(Gr.), half, being a genus that Herre believed was “most closely related” to
Triakis
. (
See ETYFish
)
;
leucoperiptera:
leuco-
, from
leukos
(Gr.), white;
peri
(Gr.), around;
ptera
(Gr.), fin, referring to white margin around fins. (
See ETYFish
)
.
More on author:
Herre
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 48 m (Ref.
244
). Tropical; 20°N - 5°N
Western Central Pacific: known only from the Philippines.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 96.0 cm TL (female)
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 0;
Anal
spines
: 0;
Anal
soft rays
: 0. No dusky bar on underside of snout; young with dark bars on caudal fin but not elsewhere (Ref.
13563
).
An little-known inshore tropical shark found in coastal waters (Ref.
13563
). Ovoviviparous (Ref.
50449
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Ovoviviparous, embryos feed solely on yolk (Ref.
50449
). 12 young in a litter and size at birth at least 20 to 22 cm (Ref.
244
).
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 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref.
244
)
IUCN Red List Status (Ref.
130435
)
Critically Endangered (CR)
(A2d); Date assessed:
02 July 2020
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless (Ref.
13563
)
Human uses
Fisheries: subsistence fisheries
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Estimates based on models
Preferred temperature (Ref.
123201
): 28 - 28.8, mean 28.5 °C (based on 18 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00183 - 0.00992), b=3.04 (2.83 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 4.2 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Low, minimum population doubling time 4.5 - 14 years (Fec=12).
Fishing Vulnerability (Ref.
59153
): High vulnerability (58 of 100).
Price category (Ref.
80766
):
High
.
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Page last modified by :
mrius-barile
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