Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Perciformes/Scorpaenoidei
() > Aploactinidae
Etymology: Cocotropus: Greek, kokkos = berry, seed + Greek, tropsis, tropo = turning (Ref. 45335); eksae: Named for E.K. Sytchevskaya, a well-known Russian ichthyologist and paleontologist.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range ? - 100 m (Ref. 86262). Tropical
Western Pacific: Vietnam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.4 cm SL male/unsexed; (Ref. 86262)
Morphology | Morphometrics
soft rays: 8;
Vertebrae: 25. This species is distinguished by the following characters: D XIV, 10; A II,8; P 13; vertebrae 25; preopercular spines 4; vomer with teeth; lacrimale short; very weakly developed papillae on sides and lower surface of head, breast, and belly; plate of maxillare with one papilla; isthmus attaining with its apex the level of fifth mandibular pore; light brown coloration of preserved fish and darker papillae and tubules of sensory canal on the trunk; no membrane connecting D with caudal peduncle (Ref. 86262).
Only one known specimen of the new species was found in catches of local fishermen in hauls in the mouth of Be Lagoon where fishery trawlers are unloaded by fishing with small shrimp trawls at a depth not exceeding 100 m. This fishing was obviously made near to the coral bank in a rather special biotope comprising both areas of solid gravel, sand, and growth of sea vegetation, where the latter probably was well developed (Ref. 86262).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Prokofiev, A.M., 2010. Occurrence of velvet-fishes of the genus Cocotropus (Teleostei: Scorpaeniformes: Aploactinidae) in Vietnam waters with descriptions of two new species. J. Ichthyol. 50(9):718-727. (Ref. 86262)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [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
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .