Classificatie / Namen
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Cathorops: Greek, kathorao = to observe, to watch + Greek, ops = appearance (Ref. 45335).
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Tropical
South America: Ecuador and Peru.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 17.9 cm SL mannelijk / geslacht onbekend; (Ref. 130657)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Anale zachte stralen: 23 - 25. This species is distinguished from the eastern Pacific subcongeners by having a supraoccipital process broader on posterior portion (3.4-4.0% SL) and long (12.0-14.1% SL); nuchal plate long (7.2-7.9% SL), and wide (7.2-8.1% SL); edges of the distal third of the occipital process present a marked anterior-posterior convergence; distance between anterior nostrils short (3.3-4.2% SL); distance between posterior nostrils short (4.1-5.8% SL); orbital diameter large (4.1-5.4% SL); mouth narrow (9.5-11.1% SL); vomerine tooth plates absent, and accessory tooth plates bearing molariform teeth; distance from snout to dorsal fin long (36.1-40.6% SL); gill rakers on first brachial arch 17-18, on second brachial arch 16-19 rakers; caudal-fin lobes long, upper (31.3-32.8% SL), lower (29.7-32.8% SL); caudal-peduncle deep (7.8-9.0% SL); caudal-fin lobes wide, rounded posteriorly; short anal-fin base (15.3-19.3% SL); anal-fin rays 23-25 (Ref. 130657).
Cross section: oval.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Marceniuk, A.P., C. Oliveira and Ferraris Jr., 2016. Cathorops festae (Boulenger 1898) (Siluriformes; Ariidae), a valid species from Ecuador and Peru. Zootaxa 4170(1):137-148. (Ref. 130657)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van potentieel belang
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00468 (0.00244 - 0.00896), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
4.2 ±0.8 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (22 of 100). 🛈 |