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Plotosus canius  Hamilton, 1822

Gray eel-catfish
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Image of Plotosus canius (Gray eel-catfish)
Plotosus canius
Picture by Jean-Francois Helias / Fishing Adventures Thailand


Australia country information

Common names: Eel catfish
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Admiralty Gulf, W.A. to Tomkinson River, N.T. (Ref. 7300). Also Ref. 9801.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Siluriformes (Catfish) > 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

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 : 150 cm TL male/unsexed; (Ref. 3478); 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). Juveniles may occur in dense aggregations (Ref. 9801). Feed on crustaceans, mollusks and fishes. Marketed mostly fresh. Spines associated with anterior fins have potent venom.

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. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 9801)




Human uses

Fisheries: commercial
FAO(Publication : search) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 25.1 - 29.1, mean 28.3 (based on 1244 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00244 - 0.00981), b=3.02 (2.83 - 3.21), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.9   ±0.61 se; Based on food items.
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Very high vulnerability (76 of 100) .
Price category (Ref. 80766):   Low.