Leptodoras oyakawai

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Leptodoras oyakawai Birindelli, Sousa & Sabaj Pérez, 2008

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drawing shows typical species in Doradidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Doradidae (Thorny catfishes) > Doradinae
Etymology: Leptodoras: Greek, leptos = thin + Greek, doras = skin (Ref. 45335);  oyakawai: Named for Osvaldo Takeshi Oyakawa, for his dedicated service to the ichthyological community since 7 July 1989 as Collection Manager of the Fish Collection ('Seção de Peixes') at the Museu de Zoologia da Universidade de São Paulo..

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: Rio Tapajós and rio Xingu basins in Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.4 cm SL male/unsexed; (Ref. 79526)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 6; Vertebrae: 38 - 40. A species belonging to the genus Leptodoras by having modified oral hood and first gill arch with enlarged accessory lamellae extending well onto medial face of gill filaments. Differs from other species of Leptodoras by having the following three unique characters: gas bladder moderately sized (not reduced) and with simple walls (diverticula absent), and paired bony capsules on anteriormost vertebrae reduced to paired cup-like laminar ossifications separated by a triangular septum (Ref. 79526).

Biology     Glossary (e.g. epibenthic)

Caught at night on a large sandy shoal where the main channel of the river is wide and shallow (less than 2 m in depth) ) and with sluggish current. This species was also collected at night along a sandy beach with moderate current (Ref. 79526).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Ferraris, Jr., Carl J. | Collaborators

Birindelli, J.L.O., L.M. Sousa and M.H. Sabaj Pérez, 2008. New species of thorny catfish, genus Leptodoras Boulenger (Siluriformes: Doradidae), from Tapajós and Xingu basins, Brazil. Neotrop. Ichthyol. 6(3):465-480. (Ref. 79526)

IUCN Red List Status (Ref. 130435)

  Near Threatened (NT) (A3c); Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00437 - 0.01992), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.8   ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).