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Paralithoxus jariensis (Silva, Covain, Oliveira & Roxo, 2017)

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drawing shows typical species in Loricariidae.


Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found only in rio Jari and small tributaries in the municipality of Almerim and Laranjal do Jari, Amapá State (Ref. 118148).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Silva, G.S.C., R. Covain, C. Oliveira and F.F. Roxo, 2017
National Database:

Common names from other countries

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

Teleostei (teleosts) > Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypostominae
Etymology: jariensis: The specific name jariensis is used in reference to the type locality, the rio Jari, a large tributary of the rio Amazon basin..

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 Jari basin in Amapá State, Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.1 cm SL male/unsexed; (Ref. 118148)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 5. Lithoxus jariensis is distinguished from its congeners L. surinamensis and L. pallidimaculatus by having an adipose fin (vs. adipose fin absent); from L. bovallii by the lack of an irregular concentration of chromatophores around the anal-fin origin and adjacent region (vs. present), and by having three dark bands in the caudal fin (vs. five dark bands); from L. lithoides and L. jantjae by having five branched rays in the anal fin (vs. four); from L. pallidimaculatus and L. raso by the lack of light spots on the body (vs. light spots on the body present); from L. jantjae by having 14 branched rays in the caudal fin (vs. 12); and from L. stocki by having medial premaxillary teeth with an enlarged and widened cusp (vs. cusps of all premaxillary teeth similar in size, not enlarged), and 5-8 dentary teeth (vs. 10-12). In addition, Lithoxus jariensis can be diagnosed from L. boujardi by having a greater adipose-spine length, 6.2-10.1% SL (vs. 3.6-4.7% SL), and by having a greater dorsal adipose-caudal distance, 12.0-16.5% SL (vs. 10.3-11.7% SL); from L. planquettei by smaller caudal peduncle depth, 7.6-8.7% SL (vs. 9.7-10.5% SL), and by having a straight adipose-fin spine (vs. a curved adipose-fin spine); and from L. stocki by having a shorter cleithral width, 27.8-31.2% SL (vs. 32.6-34.2% SL), and a greater dorsal-anal distance, 10.4-13.7% SL (vs. 8.8-10.4% SL) (Ref. 118148).

Biology     Glossary (e.g. epibenthic)

Facultative air-breathing in the genus (Ref. 126274); Inhabits the bottom of fast-flowing clear-water rivers of medium to large size. The bottom of the rivers consists of small to large rocks, loose stones, and sand (Ref. 118148).

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

Main reference Upload your references | References | Coordinator : Fisch-Muller, Sonia | Collaborators

Silva, G.S.C., R. Covain, C. Oliveira and F.F. Roxo, 2017. Description of two new species of Lithoxus (Hypostominae: Loricariidae) from rio Jari and rio Amapá basins, Brazillian Guiana shield. Zootaxa 4347(1):151-168. (Ref. 118148)

IUCN Red List Status (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00712 - 0.03216), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
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).