Dekeyseria picta (Kner, 1854)
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Dekeyseria picta
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypostominae
Eponymy: Dr Pierre Louis Dekeyser (1914–1984) was a zoologist and ethnologist. [...] (Ref. 128868), visit book page.
More on author: Kner.
Eponymy: Dr Pierre Louis Dekeyser (1914–1984) was a zoologist and ethnologist. [...] (Ref. 128868), visit book page.
More on author: Kner.
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; demersal. Tropical
Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
South America: Brazil, Colombia and Venezuela.
Size / Weight / Age
Short description Identification keys | Morphology | Morphometrics
Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 3 - 5. This species is distinguished from its congeners by the following characters: peculiar colouration, with conspicuous large dark bars over a yellowish background on head and body on young, faded on adults, but always present on fins; with more than four fragmented plates between canal plate and opercle; short interorbital distance 21-34% in head length (Ref. 129180).
Body shape (shape guide): elongated; Cross section: oval.
Body shape (shape guide): elongated; Cross section: oval.
Facultative air-breathing in the genus (Ref. 126274); This species was mainly recorded from black waters of the Rio Negro and its tributaries in Brazil. It is always associated with fast-flowing waters. From field collections along the Rio Negro, this species can be easily found on the large logs used on floating houses where the current is swift, or they can inhabit large bedrocks with strong currents. However, no dimorphic males were found on bedrock in strong currents, instead, two dimorphic males were collected inside crevices on floating logs taking care of clutches of eggs and probably established their nests during the reproductive period on the floating logs, with low current. The males remained on top of the clutch of eggs, fanning them constantly with the pectoral-fin branched rays and the enlarged pelvic fins covering the clutch completely and might be used as protection. The mass of eggs were collected and brought to the lab, where these started to break and the hatchlings were quickly released. All hatchlings were fast and active swimmers, carrying a large yolk sac. Eggs with small black dots usually seem ready to release the young; while eggs without the black dots seem not to be mature enough to hatch. Adult specimens were dissected to determine sex and gut contents: mature males with elongated pelvic fins showed testes well developed, and all specimens presented the intestine full of detritus (Ref. 129180).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator : Fisch-Muller, Sonia | Collaborators
Silva, R.R. and L.H. Rapp Py-Daniel, 2018. Redescription of Dekeyseria picta (Siluriformes; Loricariidae), a poorly known ancistrin from the Amazon and Orinoco Basins. J. Fish Biol. 92(5):1446-1462. (Ref. 129180)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Least Concern (LC) ; Date assessed: 07 October 2020
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
FAO - Publication: search | FishSource |
More information
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
Special reports
Download XML
Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record
Estimates based on models
|
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01549 (0.00729 - 0.03291), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
Trophic level (Ref. 69278) |
2.0 ±0.00 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). 🛈 |