Oligosarcus jacuiensis

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Oligosarcus jacuiensis Menezes & Ribeiro, 2010

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

Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Oligosarcus: Greek, oligos = small + Greek arkos = anus (Ref. 45335);  jacuiensis: The species name jacuiensis is in reference to rio Jacuí in Rio Grande do Sul, Brazil, where most of the specimens were collected. An adjective (Ref. 85166).

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

Freshwater; benthopelagic. Tropical

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

South America: Jacuí and Uruguay River basins in Rio Grande do Sul, Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 18.8 cm SL male/unsexed; (Ref. 85166); 20.5 cm SL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 11. Can be diagnosed from all its known congeners, except Oligosarcus jenynsii, Oligosarcus perdido, Oligosarcus acutirostris, Oligosarcus solitarius and Oligosarcus hepsetus, by the number of perforated lateral line scales (55-65). Shares with the first two species the absence of a premaxillary foramen, present in the last three species and differs from Oligosarcus jenynsii by having a smaller orbital diameter and the tip of the pectoral fin failing to reach the pelvic-fin origin, and from Oligosarcus perdido by the presence of more horizontal scale rows around the caudal peduncle.

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator | Collaborators

Menezes, N.A. and A.C. Ribeiro, 2010. Oligosarcus jacuiensis (Characiformes: Characidae), a new species from the Uruguay and Jacuí River basins, southern Brazil. Neotrop. Ichthyol. 8(3):649-653. (Ref. 85166)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

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Ecology
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Common names
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Predators
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Fecundity
Eggs
Egg development
Age/Size
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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 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00444 - 0.02253), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.1   ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).