Plotosus canius, Gray eel-catfish : fisheries

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Plotosus canius Hamilton, 1822

Gray eel-catfish
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Plotosus canius   AquaMaps   Data sources: GBIF OBIS
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Image of Plotosus canius (Gray eel-catfish)
Plotosus canius
Picture by Jean-Francois Helias / Fishing Adventures Thailand

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Siluriformes (Catfishes) > Plotosidae (Eeltail catfishes)
Etymology: Plotosus: Greek, plotos = swimming (Ref. 45335).
More on author: Hamilton.

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

Marine; freshwater; brackish; demersal; amphidromous (Ref. 51243). Tropical; 27°N - 19°S, 72°E - 177°W

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

Indo-West Pacific: west and south coasts of India and off Sri Lanka eastward along the coasts of Bangladesh and Myanmar, through the Indo-Australian Archipelago and the Philippines as far as Papua New Guinea.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 111 cm TL male/unsexed; (Ref. 127983); common length : 80.0 cm TL male/unsexed; (Ref. 3478)

Short description Morphology | Morphometrics

A plain dusky-brown species with a black dorsal fin tip. Shows banded pattern at night. Distinguished from adult Plotosus lineatus by its long barbels on the nostrils that can reach pass the eyes.

Biology     Glossary (e.g. epibenthic)

Adults found mostly in estuaries and lagoons, and sometimes up rivers in nearly fresh waters. They occur in the lower parts of rivers in freshwater or brackish water and in coastal seas (Ref. 12693, 48635). It is reported to have an extended breeding season and likely spawns in brackish water, based on optimal sperm survival at 0.9 % salinity; produces relatively few large eggs, consistent with parental care and it is possible that male fish construct nests and guard their fry (Ref. 127983), Maximum length of 150 cm TL is without actual specimen (Ref. 3478). Juveniles may occur in dense aggregations (Ref. 9801). Feed on crustaceans, mollusks and fishes. Spines associated with anterior fins have potent venom. Marketed mostly fresh.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Gomon, J.R., 1984. Plotosidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean fishing area 51. Vol. 3. (Ref. 3478)

IUCN Red List Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 9801)





Human uses

Fisheries: commercial
FAO - Publication: search | FishSource |

More information

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Ecology
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Fecundity
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Age/Size
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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

Preferred temperature (Ref. 123201): 25.1 - 29.1, mean 28.3 °C (based on 1244 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00248 - 0.00968), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.4 se; based on diet studies.
Generation time: 3.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100).
Price category (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 63.2 [34.5, 108.6] mg/100g; Iron = 0.78 [0.49, 1.27] mg/100g; Protein = 16.9 [14.7, 19.1] %; Omega3 = 0.147 [0.082, 0.262] g/100g; Selenium = 81.8 [43.4, 163.8] μg/100g; VitaminA = 11.2 [5.1, 25.6] μg/100g; Zinc = 0.934 [0.684, 1.292] mg/100g (wet weight);