You can sponsor this page

Parakysis hystriculus Ng, 2009

Upload your photos and videos
 Pictures | Google image
Image of Parakysis hystriculus
Parakysis hystriculus
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) > Parakysinae
Etymology: Parakysis: Greek, para = the side of + Greek, kysthos = bladder (Ref. 45335);  hystriculus: From the Latin adjective hystriculus, meaning hairy or bearded; in reference to the long accessory mandibular barbels of this species.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical; 1°S - 2°S, 103°E - 104°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South East Asia : Sumatra. Known from the Lalang River drainage in southern Sumatra (Ref. 80319).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.9 cm SL male/unsexed; (Ref. 80319)

Short description Identification keys | Morphology | Morphometrics

Parakysis hystriculus is distinguished from other members of the genus in having a combination of: branched pelvic-fin rays with anterior branch always shorter than posterior branch (vs. almost same length in congeners), lateral edges of head evenly sloping in dorsal view (vs. gently curving in congeners), anteriormost pair of accessory inner mandibular barbels longer than (vs. equal to or shorter than in congeners) distance separating bases of left and right barbel, outer mandibular barbel with one accessory barbel (vs. absent in P. anomalopteryx), mandibular laterosensory pore between bases of inner and outer mandibular barbels present (vs. absent in P. anomalopteryx), margin of lower lip with medial concavity (vs. entire in P. anomalopteryx), anal fin rounded (vs. polygonal or rectangular in P. grandis), caudal fin with narrow lobes having evenly-tapering posteromedial margins (vs. broad lobes with curved posteromedial margins in P. grandis and P. longirostris) and 10 (vs. 11 in P. verrucosus) branched rays without secondary branches (vs. with secondary branching in P. grandis) (Ref. 80319).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Ng, H.H., 2009. Parakysis hystriculus, a new species of catfish (Siluriformes: Akysidae) from Sumatra. Zootaxa 1977:39-48. (Ref. 80319)

IUCN Red List Status (Ref. 130435)

  Endangered (EN) (B1ab(i,iii)); Date assessed: 01 September 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

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 = 0.5156   [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):  3.3   ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).