Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Ariidae
(Sea catfishes) > Ariinae
Etymology: biffi: Named for Dr. Eldredge (Biff) Bermingham (STRI), for his important contribution to the knowledge of neotropical fish biogeography.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; benthopelagic; depth range 9 - 30 m (Ref. 54794). Tropical
Eastern Central Pacific: tropical Eastern Pacific from central and north Costa Rica and El Salvador. Although Kailola and Bussing (1995) speculate that “Arius” species A extends southwards to Panamá, R. Cooke (pers. comm., 2004) doubts that this species is present in Panamá, at least from Parita Bay eastwards (Ref 54794).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.4 cm SL male/unsexed; (Ref. 54794)
Morphology | Morphometrics
Notarius biffi is distinguished from other EP species of Notarius by the following combination of features: a small mouth, its width 34.2–39.3% (mean 36.2%) HL; eye large, its diameter 3.8–4.5% (mean 4.2%); short mandibulary barbels, their length 10.2–13.1% (mean 11.6%) SL; short anterior internarial distance, 17.9–20.8% (mean 19.4%) HL; relatively slender caudal peduncle, depth 6.1–6.7% (mean 6.4%) SL; and gill rakers on first arch 3–4+7–8 (mode 12). The combination of the following characters also distinguish this species from other EP ariids: triangular humeral process, three pairs of barbels present, fleshy furrow between posterior nostrils absent, fleshy groove in median depression of head absent, coarse to sharp granules or spinulations on anterior surface of head shield absent, and gill rakers on rear surfaces of first two gill arches absent (Ref 54794).
Inshore marine and brackish waters, and high salinity estuaries (Ref 54794).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Betancur-R., R. and A. Acero P., 2004. Description of Notarius biffi n. sp. and redescription of N. insculptus (Jordan and Gilbert) (Siluriformes: Ariidae) from the eastern Pacific, with evidence of monophyly and limits of Notarius. Zootaxa 703:1-20. (Ref. 54794)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Traumatogenic (Ref. 58010)
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 24.5 - 29.1, mean 27.9 (based on 20 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (44 of 100) .