Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Microdesmidae
(Wormfishes) > Microdesminae
Etymology: Cerdale: Greek, kerdoo, -oos, ous = the wary one, the wily one or the fox. Fishes of Alaska, Jordan and Evermann, 1898; personnal communication of Catherin W. Mecklenburg, California Acad, of Sciences.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 1 m (Ref. 11482), usually 0 - 1 m (Ref. 11482). Tropical
Eastern Central Pacific: Costa Rica to Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm TL male/unsexed; (Ref. 11482)
Inhabits shallow rocky coasts, including tide pools. Feeds on zooplankton and tiny benthic crustaceans.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R. and D.R. Robertson, 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 27.3 - 29.1, mean 28.2 (based on 110 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.5 ±0.47 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .