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Paralichthys isosceles
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Paralichthys isosceles
Picture by
Fischer, L.G.
Teleostei (teleosts) >
Pleuronectiformes
(Flatfishes) >
Paralichthyidae
(Large-tooth flounders)
Etymology:
Paralichthys:
Greek, para = the side of + Greek, ichthys = fish + Greek, suffix, oides = similar to (Ref.
45335
)
.
More on author:
Jordan
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 50 - 190 m (Ref.
36453
), usually 70 - 100 m (Ref.
43588
). Subtropical; 34°S - 47°S
Southwest Atlantic: Brazil to Argentina.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 32.0 cm TL male/unsexed; (Ref.
43588
); 38.0 cm TL (female); max. published weight: 456.14 g (Ref.
102462
)
Short description
Morphology
|
Morphometrics
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 79-92;
Anal
spines
: 0;
Anal
soft rays
: 65 - 72;
Vertebrae
: 38 - 39. Caudal fin double truncate (Ref.
27363
). Almost wholly ambicolorate, the blind side is darkly pigmented except for the anterior portion of the body which has dark pigments only on the opercle, subopercle, a small region adjacent and dorsal to the head, and the distal half of the pectoral fin; two lighter pigmented areas were present on the unpigmented dorsal region of the head. The blind side had one of the 3 typical ocelli (upper one) in the same position with that of the ocular side (Ref.
34245
).
Prefers hard or sandy substrates, rarely on mud (Ref.
43588
). Feeds on fishes and cephalopods (Ref.
36453
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Distinct pairing (Ref.
205
).
Nakamura, I., T. Inada, M. Takeda and H. Hatanaka
, 1986. Important fishes trawled off Patagonia. Japan Marine Fishery Resource Research Center, Tokyo. 369 p. (Ref.
27363
)
IUCN Red List Status (Ref.
130435
)
Data deficient (DD)
; Date assessed:
06 December 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201
): 4.6 - 10.1, mean 7.9 °C (based on 82 cells).
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00270 - 0.00849), b=3.19 (3.04 - 3.34), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 4.0 ±0.53 se; based on food items.
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low to moderate vulnerability (28 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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