Otothyropsis alicula

Otothyropsis alicula Lippert, Calegari & Reis, 2014

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Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Loricariidae (Armored catfishes) > Hypoptopomatinae
Etymology: alicula: From the Latin alicula, diminutive of ala, wing, fin in case of a fish, in allusion to the short pectoral fin diagnostic of the species. A noun in apposition.

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

; eau douce démersal. Tropical

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

South America: Rio Santo Antônio basin, a tributary to Rio Sapucaí, itself a tributary to the upper Rio Grande, Rio Paraná basin in Brazil.

Taille / Poids / Âge

Maturité: Lm ?  range ? - ? cm
Max length : 3.6 cm SL mâle / non sexé; (Ref. 96503)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 2; Rayons mous dorsaux (Total) : 7; Épines anales: 1; Rayons mous anaux: 5; Vertèbres: 29 - 30. The possession of the unique caudal-fin coloration pattern, consisting of a densely pigmented blotch occupying its proximal half, prolonged posteriorly onto the middle rays but not reaching the posterior border of fin distinguishes Otothyropsis alicula from other species of Otothyropsis (vs. various color patterns but never with a distinct proximal blotch). It further differs from O. marapoama, O. piribebuy, and O. biamnicus by having a shorter prepelvic length (33.9-37.7 vs. 40.6-45.4, 42.2-46.3, and 36.7-39.3% SL, respectively), and from males of O. polyodon (33.9-36.3, mean 5 35.9 vs. 36.2-39.5% SL, mean 5 37.9). It can be further diagnosed from all congeners, except O. polyodon, by having the dorsal-fin spinelet rectangular in shape (vs. dorsal fin-spinelet triangular or quadrangular). It can be distinguished from all its congeners, except O. piribebuy, by having a raised crest of enlarged odontodes in the posterior portion of the parieto-supraocciptal (vs. such crest present). It also differs from O. marapoama, O. piribebuy, and O. polyodon by having the abdomen devoid or almost devoid of plates (vs. abdomen totally covered by plates or with three to four lateral abdominal plates and a row or few platelets in posterior portion of abdomen); shorter pectoral-fin spine (16.5-20.0 vs. 25.2-30.5, 24.9-30.4, and 21.4-26.9% SL, respectively), and the sutures between contiguous neural spines extending two-thirds the distance from centra to distal portion (vs. sutures between neural spines extending from near centra to or almost to the distal tip); from O. marapoama and O. piribebuy by having 11-13 plates between anal and caudal fins (vs. 9-10 plates, in both), complete median series of lateral plates, reaching to the caudal fin (vs. the medial series of lateral plates truncated at least two plates before the caudal fin), and 22-25 plates in median lateral series (vs. 17-21 and 19-20, respectively); from O. polyodon by having larger cleithral width (22.6-24.7 vs. 19.2-21.9%SL) and shorter nares diameter (6.8-11.2 vs. 11.5-15.6% HL); and from O. biamnicus by having a longer snout (49.7-54.2 vs. 44.1-47.9% HL) (Ref. 96503).

Biologie     Glossaire (ex. epibenthic)

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Téléchargez vos références | Références | Coordinateur : Fisch-Muller, Sonia | Collaborateurs

Lippert, B.G., B.B. Calegari and R.E. Reis, 2014. A new species of Otothyropsis (Siluriformes: Hypoptopomatinae) from Eastern Brazil. Copeia 2014(2):238-244. (Ref. 96503)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Préoccupation mineure (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

FAO - Publication: search | FishSource |

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Écologie trophique
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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | 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 | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804)
PD50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00977 (0.00436 - 0.02192), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Niveau trophique
(Réf. 69278)
2.3   ±0.1 se; based on size and trophs of closest relatives
Résilience
(Réf. 120179)
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Vulnérabilité de la pêche
(Ref. 59153)
Low vulnerability (11 of 100). 🛈