Curculionichthys scaius

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Curculionichthys scaius Calegari, Gamarra & Reis, 2018

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Teleostei (teleosts) > Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: Curculionichthys: Derived from the from the Latin 'curculionem' (elongated snout) and from the Greek 'ichthys' (fishes), in reference to the relatively elongated snouts of the fish species included in this genus.;  scaius: Name from Greek 'skaios', meaning west, westward, referring to the westerly distribution in the Brazilian Shield; an adjective..

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

Freshwater; demersal; depth range 0 - 1 m (Ref. 119375). Tropical

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

South America: Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.4 cm SL male/unsexed; (Ref. 119375)

Short description Morphology | Morphometrics

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 5. This species is distinguished from its congeners by the following set of characters: having two usually distinct, somewhat triangular dark brown speckles lateral to the anal-fin origin (vs. speckles lateral to anal-fin origin absent or, when pigmentation present, weak and sparsely distributed forming inconspicuous blotches); differs from C. karipuna, Hisonotus acuen, H. chromodontus by having paired rostral plates (vs. rostral plate single); differs from C. oliveirai, C. piracanjuba, H. acuen, H. bockmanni, H. chromodontus by having more numerous lateral abdominal plates 7-8 (vs. 3-5 lateral abdominal plates); differs from C. coxipone, C. luteofrenatus, C. piracanjuba, C. sabaji, C. sagarana by having a single series of large median abdominal plates (vs. usually 3 or more regular series of median abdominal plates, or small plates irregularly distributed); differs from C. coxipone, C. sagarana by having anterior margin of snout pointed (vs. rounded); differs further from its congeners by having more dentary teeth 17-22 (vs. 5-1 in insperatus, 5-12,sabaji, 7-16 coxipone, 10-15 oliveirai, 11-18 itaim, 10-16 tukana, 4-7 paresi) and by having more pemaxillary teeth 19-25 (vs. 6-14 in insperatus, 7-13 sabaji, 7-15 coxipone, 9-18 oliveirai, 11-18 itaim, 12-18 tukana); also differs further in several morphometric proportions of the body and head, mostly involving prepelvic, prepectoral, and preanal distances, head and cleithral width, caudal peduncle length, and dorsal-fin spine (Ref. 119375).

Biology     Glossary (e.g. epibenthic)

This species was collected in a third order creek with clear water, bottom formed mainly by sand and leaf litter, wirh an average width of 2.5 m and depth of 0.3 m; collected when water temperature was 23.6 Celsius and dissolved oxygen 1.88 PPM. The creek edges were covered by gallery forest, but portions have been deforested and pastures are now reaching to the river margin (Ref. 119375).

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

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

Calegari, B.B., S.P. Gamarra and R.E. Reis, 2018. A new species of Curculionichthys (Siluriformes: Hypoptopomatinae) from the Western Border of the Brazilian Shield, Madeira River Basin, Brazil. Copeia 106(4):663-670. (Ref. 119375)

IUCN Red List Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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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 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00337 - 0.01709), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.7   ±0.1 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).