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Corydoras paleatus, Peppered corydoras : aquarium
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Corydoras paleatus
Picture by
Muséum-Aquarium de Nancy/D. Terver
Teleostei (teleosts) >
Siluriformes
(Catfishes) >
Callichthyidae
(Callichthyid armored catfishes) > Corydoradinae
Etymology:
Corydoras:
Greek, kory = helmet + greek, doras = skin (Ref.
45335
)
.
More on author:
Jenyns
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 6.0 - 8.0; dH range: 5 - 19. Subtropical; 18°C - 23°C (Ref.
30491
)
South America: Argentina, Brazil, and Uruguay.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 6.6 cm SL male/unsexed; (Ref.
111771
); 7.1 cm SL (female); max. published weight: 11.20 g (Ref.
111771
); max. published weight: 11.20 g
Dorsal
spines
(total): 2;
Dorsal
soft rays
(total): 8-9;
Anal
soft rays
: 6 - 7;
Vertebrae
: 21 - 22. This species is distinguished from its congeners, except
C. armatus
and
C. microcephalus
, by having perpendicularly directed serrations along the entire posterior margin of the pectoral spines (vs. serrations pointing towards pectoral spine origin, or directed towards pectoral-spine tip, or perpendicularly directed serrations, if present, bifid or restricted to proximal region of pectoral spine); differs from
C. armatus
by the absence of contact between infraorbital 2 and compound pterotic (vs. presence); differs from
C. microcephalus
by the presence of a longitudinal series of three large black blotches along midline of flank (vs. four or five midline blotches in
C. microcephalus
); differs from
C. cohui, C. diphyes, C. flaveolus, C. froehlichi, C. gryphus, C. habrosus, C. lacrimostigmata, C. longipinnis, C. lymnades
by having the anterior region of the dorsal fin black (vs. with black spots or bars); differs from
C. carlae, C. garbei, C. difluviatilis
by having hyaline or black pectoral fin (vs. with black spots or bars); differs from
C. reynoldsi, C. tukano, C. weitzmani
by the absence of a conspicuous coloration pattern in the region of the eye (vs. presence of a transversal black stripe across the eye); differs from
C. gladysae, C. micracanthus, C. petracinii
by having a dorsal spine that is relatively long, with adpressed distal tip slightly surpassing the base of the last branched dorsal-ray (vs. conspicuously short, with adpressed distal tip not reaching the base of the last branched dorsal-ray); differs from
C. ehrhardti
by having transversal black bars on caudal-fin lobes (vs. caudal-fin lobes hyaline or brownish); differs from
C. steindachneri
by having a fold in the middle portion of the lower lip (vs. absence) (Ref.
129023
).
Facultative air-breathing (Ref.
126274
); Found in ponds (Ref.
11229
). Feeds on worms, crustaceans, insects and plant matter (Ref.
7020
). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref.
51539
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
The female holds 2-4 eggs between her pelvic fins, where the male fertilizes them for about 30 seconds. Only then the female swims to a suitable spot, where she attaches the very sticky eggs. The pair repeats this process until about 100 eggs have been fertilized and attached (Ref.
1672
).
Tencatt, L. F. C., M. R. Britto and C. S. Pavanelli
, 2016. Revisionary study of the armored catfish
Corydoras paleatus
(Jenyns, 1842) (Siluriformes: Callichthyidae) over 180 years after its discovery by Darwin, with description of a new species. Neotropical Ichthyology 14(1):75-94. [Published online. Second author also as de Britto.]. (Ref.
129023
)
IUCN Red List Status (Ref.
130435
)
Least Concern (LC)
; Date assessed:
15 October 2020
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: of no interest; aquarium: highly 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=0.02089 (0.01243 - 0.03511), b=2.92 (2.78 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245
).
Trophic level (Ref.
69278
): 2.9 ±0.34 se; based on food items.
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec is at least about 100 eggs (Ref.
1672
)).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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- 20 July 2016
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