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Percichthys trucha, Creole perch : fisheries, gamefish
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Percichthys trucha
Picture by
Busse, K.
Teleostei (teleosts) >
Centrarchiformes
(Basses) >
Percichthyidae
(Temperate perches)
Etymology:
Percichthys:
Greek, perke = perch + Greek, ichthys = fish (Ref.
45335
)
.
More on author:
Valenciennes
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Subtropical
South America: Colhue Huapi lake, Chubut, Negro, Limay and Colorado-Desaguadero systems in Argentina.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref.
30526
)
Anal
soft rays
: 8 - 11. Distinguished from its congeners by possessing large coronomeckelian bone and dentigerous arm of premaxilla about 1.5 times the height of ascending process (vs. small coronomeckelian bone and dentigerous arm of premaxilla about 2 times or more the height of ascending process), and the following combination of characters: quadrate-mandibular articulation at anterior half of orbit; mouth hypognathous; posterior border of maxilla at anterior border of orbit or placed anterior to it, generally not beyond posterior border of lachrymal; hyoid artery piercing dorsal hypohyal; 3 predorsal bones; one super-numerary spine on first dorsal pterygiophore (rarely none); 3rd or 4th dorsal fin spine the longest; 7-8 trisegmented pterygiophores in dorsal fin; upper jaw length 90-120% snout length and 28-36% HL; head length 24-33% SL; length of pectoral and pelvic fins 48-75% HL; 50-80% body depth; 14-17 pectoral fin rays; 8-11 anal fin rays; 45-49 caudal fin rays; procurrent spur present (Ref.
55324
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
López-Arbarello, A.
, 2004. Taxonomy of the genus
Percichthys
(Perciformes: Percichthyidae). Ichthyol. Explor. Freshwat. 15(4):331-350. (Ref.
55324
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
06 May 2022
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial; gamefish: yes
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00408 - 0.02815), 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
): 3.3 ±0.1 se; based on diet studies.
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
.
Nutrients (Ref.
124155
): Calcium = 56.9 [23.5, 115.3] mg/100g; Iron = 1.01 [0.58, 1.70] mg/100g; Protein = 18.9 [18.0, 20.0] %; Omega3 = 0.486 [0.190, 1.221] g/100g; Selenium = 20.7 [8.5, 51.7] μg/100g; VitaminA = 39.3 [13.0, 116.3] μg/100g; Zinc = 1.31 [0.92, 1.92] mg/100g (wet weight);
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