Harman Patil (Editor)

Pterygoplichthys multiradiatus

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Kingdom
  
Family
  
Phylum
  
Chordata

Rank
  
Species

Order
  
Siluriformes

Higher classification
  
Pterygoplichthys


Scientific name
  
Pterygoplichthys multiradiatus

Similar
  
Pterygoplichthys, Catfish, Pterygoplichthys pardalis, Loricariidae, Hypostomus

Pterygoplichthys multiradiatus is one of several tropical fish commonly known as plecostomus (or plecos). It belongs to the armored catfish family (Loricariidae). Named for its sail-like dorsal fin, the part of its scientific name multiradiatus means "many-rayed" and refers to the rays of the dorsal fin. P. multiradiatus is one of a number of species commonly referred to as the common pleco by aquarists.

Pterygoplichthys multiradiatus Image Pterygoplichthys multiradiatus Longfin Armored Catfish

Other scientific names that were used (as synonyms) for P. multiradiatus include Hypostomus multiradiatus, Ancistrus multiradiatus, and Liposarcus multiradiatus. P. multiradiatus is sometimes confused with Pterygoplichthys pardalis, which is a different species of pleco. P. multiradiatus goes by a number of common names. It can be called the "long-fin armored catfish" in Hawaii, "sailfin catfish", "sailfish catfish", "many-rayed (multiradiatus) pleco" or "radiated ptero" in the United States, 多輻翼甲鯰 in Mandarin Chinese and janitor fish in the Philippines, where it has become a local pest in the Marikina River and is sold in bulk, in efforts to eliminate the fish. P. multiradiatus is mottled brown/black and inhabits freshwater streams and lakes and in weedy, mud-bottomed canals in its native habitat: the Orinoco River basin in Venezuela. Its geographic distribution is 10°N - 1°N, 68°W - 61°W. This tropical, nocturnal bottom-dweller likes warm water at the temperature range of 23–27 °C, pH range: 6.5–7.8, and dH range: 4–20.

Pterygoplichthys multiradiatus Image Pterygoplichthys multiradiatus Longfin Armored Catfish

P. multiradiatus browses on substrate, mainly feeding on benthic algae and aquatic weeds, but will also take worms, insect larvae and other bottom-dwelling invertebrates as food.

Pterygoplichthys multiradiatus httpsuploadwikimediaorgwikipediacommonsthu

One of the large plecos (growing to a maximum of 50.0 centimetres (19.7 in) TL), this species likes solitude, is relatively peaceful as an aquarium fish and does well with cichlids and other big fish, and should be kept in large tanks only and with plenty of rocks and driftwood in which to hide.

Pterygoplichthys multiradiatus Pterygoplichthys multiradiatus Orinoco sailfin catfish Tropical

P. multiradiatus is not of interest in the fisheries, but is very important, as with many other plecos, in the aquarium trade.

Pterygoplichthys multiradiatus Pterygoplichthys multiradiatus Orinoco sailfin catfish Tropical

This species has been introduced to Hawaii (Maui, Oahu, Hawaii and Kauai islands), Puerto Rico, Vietnam, Bangladesh, México, and Florida, and has now established itself (accidentally or by release of aquarium specimens) in Kerala, S. India, Sri Lanka and The Philippines among other locations where it is regarded as a harmful invasive species being relatively inedible to people and predators, causing damage to fishing gear, competing and harming against native species and disrupting environments by its burrowing activities. In this context its relative, Hypostomus plecostomus, has also been similarly implicated though it seems likely that in Asia, both or related species are implicated.

Pterygoplichthys multiradiatus Pterygoplichthys multiradiatus 40cm YouTube

References

Pterygoplichthys multiradiatus Wikipedia


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