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Pterocryptis cochinchinensis : fisheries
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Pterocryptis cochinchinensis
Picture by
MNHN
Teleostei (teleosts) >
Siluriformes
(Catfishes) >
Siluridae
(Sheatfishes)
Etymology:
Pterocryptis:
Greek, pteron = wing, fin + Greek, kryptos = hidden (Ref.
45335
)
.
More on author:
Valenciennes
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Asia: Nam Xam basin in Laos, Viet Nam, southeastern China (Ref.
43281
) and Thailand (Ref.
9417
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 40.1 cm TL male/unsexed; (Ref.
111347
); common length : 16.4 cm SL male/unsexed; (Ref.
35840
); max. published weight: 430.00 g (Ref.
111347
)
Short description
Morphology
|
Morphometrics
Dorsal
soft rays
(total): 4;
Anal
soft rays
: 57 - 73;
Vertebrae
: 53 - 58. Unusually large genital papilla; males with a long conical papilla, while females with a flat, leaf-shaped papilla with a small projection at the tip. A unique combination of the following characters: head width 11.6-15.4% SL, head depth 8.2-9.9% SL, pelvic fin length 7.5-9.6% SL, length of dorsal fin base 0.8-1.9% SL, depth of caudal peduncle 6.2-7.6% SL, and principal caudal fin rays 14-16 (Ref.
41525
). Dark brown body; dorsal surface purple; stomach light gray; all fins are light gray (Ref.
40516
). Eye circular (Ref.
43281
).
Adults inhabit streams. They feed actively at night on small fish, crustaceans and insects.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Kottelat, M.
, 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref.
43281
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
13 August 2010
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial
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Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00350 - 0.00989), b=3.00 (2.85 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 3.8 ±0.59 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low to moderate vulnerability (30 of 100).
Price category (Ref.
80766
):
Unknown
.
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- 20 July 2016
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