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Akysis clavulus
Picture by Ng, H.H.
Pictures | Google image
Picture by Ng, H.H.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Siluriformes (Catfishes) > Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); clavulus: The specific name is derived from the Latin clavus (nail), referring to the conical tubercles on the head and body of this species.
More on authors: Ng & Freyhof.
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); clavulus: The specific name is derived from the Latin clavus (nail), referring to the conical tubercles on the head and body of this species.
More on authors: Ng & Freyhof.
Environment: milieu / climate zone / depth range / distribution range Ecology
Freshwater; demersal. Tropical
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Asia: Cai and Duc My River drainages in central Viet Nam.
Size / Weight / Age
Short description Identification keys | Morphology | Morphometrics
Dorsal spines (total): 1; Dorsal soft rays (total): 5; Vertebrae: 32 - 34. Mouth subterminal; anterior and posterior nostrils separated by distance greater than length of nasal-barbel base; emarginate caudal fin; 3-5 serrae on posterior edge of pectoral spine; evenly-sloping ethmoidal region, sides of head gently curving; 1+ 5-6 gill rakers on first branchial arch; conical-shaped tubercles on head and body; lightly contrasting color pattern, and tubercles arranged in prominent longitudinal rows on ventral third of body (Ref. 52824).
Found in hilly landscape streams and small rivers with a width of about 15-30 m (Ref. 52824). Occurs only in shallow riffles, hiding under coarse gravel and larger single stones (Ref. 52824).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator | Collaborators
Ng, H.H. and J. Freyhof, 2003. Akysis clavulus, a new species of catfish (Teleostei: Akysidae) from central Vietnam. Ichthyol. Explor. Freshwat. 14(4):311-316. (Ref. 52824)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Data deficient (DD) ; Date assessed: 17 December 2010
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
FAO - Publication: search | FishSource |
More information
Trophic ecology
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Food items
Diet composition
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Ecology
Ecology
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitment
Abundance
Life cycle
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Maturity
Maturity/Gills rel.
Fecundity
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Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Anatomy
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Otolith
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Otolith
Physiology
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Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
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Heterozygosity
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Genetics
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Human related
Aquaculture systems
Aquaculture profiles
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Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5000 [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): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).