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CATFISH


PANGASSIDAE FAMILY

The Pangassidae Family is a small family that is found in Southeast Asia. The family includestwo genera, Helicophagus and Pangasius and some 21 species .

Iridescent Shark Catfish, Asian Shark Catfish, Siamese Shark [ Pictures ]
Pangasius hypopthalmus
SYN : Pangasiussutchi
PD : An elongated fish whose body resembles the body of a shark. The body is elongated andthe tail is deeply forked. This fish has large eyes and a small mouth. The body is silver to blue with a silveriridescence. The back is darker than the main body color. A slender, horizontal, white stripe extends from thebase of the tail to the gill cover. The fins are light gray to transparent.
SIZE : To 40" (102 cm) in nature, Usually not more than 12" (30 cm) in captivity
SS : Other Pangasius species. A similar-looking species P. pleurotaenia is reportedly smaller in size. A strong, powerful fish. This fish iscommonly kept in aquariums in the Middle East and Southeast Asia.
HAB :Southeast Asia; found in large schools swimming in rapid areas of large rivers near Bangkok,Thailand. This catfish has been distributed throughout Southeast Asia as a food fish.
S : middle
TANK : A 48" (122 cm) or 55 gallon (209 L) tank is only suitable for young individualsunder 6" (15 cm). They grow quickly and need a large open area for swimming. Does best in substantially larger tanks(exceeding 60"). Likes to have morning sunlight. The tank should be well-planted with well-rooted plants. Usea filter that provides a strong current.
WATER : pH 6-7.8 (7.0), 2-20 dH (8), 72-86°F (22-30°C)
SB : An active fish that usually will not bother smaller tank mates that it cannot swallow. Likesto school while young.
SC : Gouramis, Knifefish, Asian Catfish, Loaches, Cyprind sharks, larger barbs
FOOD : Young-live; Brine Shrimp , Tubifex , insect larvae ; flakes; pellets. Adults-vegetables;lettuce, spinach, frozen peas; pellets; large flakes.
SEX : Males have darker stripes and are more slender.
B : Bred in ponds in native lands for food and export. Breeding has not been successful inan aquarium, because of the necessary tank size.
BP : 10. This fish cannot be bred in aquaria.
R : Many professionals feel that this fish should not be kept in a private aquarium becauseof its size. This species can only be kept as a juvenile. The Shark Catfish have very bad eyesight andare nervousfish. Try not to tap on the glass, turn on light when it is dark, or startle this fish in any way. Thisspecies has been introduced throughout Southeast Asia as a food fish. Older Shark Catfish lose their teethand thus will not harm even small tank mates. An albino variation has been developed in Bangkok and is now widelydistributed.
DC : 4. Young fish are hardy and live foods on a regularbasis.6. Adults become very large and must be kept in a large tank. They are vegetarians.

Species Index | Fish Home | Rainforests


Recent news

New Yangtze River dam could doom more endangered species

(06/22/2009) Eight Chinese environmentalists and scientists have composed a letter warning that a new dam under consideration for the Yangtze River could lead to the extinction of several endangered species. The letter contends that Xiaonanhia Dam, which would be 30 kilometers upstream from the city of Chongqing, will negatively impact the river’s only fish reserve. Spanning 400 kilometers in the upper Yangtze, the reserve is home to 180 fish species, including the Endangered Chinese sturgeon, and the Critically Endangered Chinese paddlefish, as well as the finless porpoise.


Fish take less than a decade to evolve

(06/22/2009) Evolution is often thought of being a slow-process, taking thousands, if not millions, of years. However a new study in The American Naturalist found that Trinidadian guppies underwent evolution in just eight years, or thirty generations. Less than a decade ago Swanne Gordon, a graduate student at UC Riverside, and her team introduced Trinidadian guppies into the Damier River in the Caribbean island of Trinidad. They placed the guppies above a waterfall to allow them to flourish in a largely predator-free environment.


Madfish?: scientist warns that farmed fish could be a source of mad cow disease

(06/17/2009) In a paper that shows just how strange our modern world has become, Robert P. Friedland, neurologist from the University of Louisville, warns that farmed fish could be at risk of Creutzfeldt Jakob disease, or mad cow disease.


New report predicts dire consequences for every U.S. region from global warming

(06/17/2009) Government officials and scientists released a 196 page report detailing the impact of global warming on the U.S. yesterday. The study, commissioned in 2007 during the Bush Administration, found that every region of the U.S. faces large-scale consequences due to climate change, including higher temperatures, increased droughts, heavier rainfall, more severe weather, water shortages, rising sea levels, ecosystem stresses, loss of biodiversity, and economic impacts.


Will jellyfish take over the world?

(06/16/2009) It could be a plot of a (bad) science-fiction film: a man-made disaster creates spawns of millions upon millions of jellyfish which rapidly take over the ocean. Humans, starving for mahi-mahi and Chilean seabass, turn to jellyfish, which becomes the new tuna (after the tuna fishery has collapsed, of course). Fish sticks become jelly-sticks, and fish-and-chips becomes jelly-and-chips. The sci-fi film could end with the ominous image of a jellyfish evolving terrestrial limbs and pulling itself onto land—readying itself for a new conquest.


Marine scientist calls for abstaining from seafood to save oceans

(06/08/2009) In April marine scientist Jennifer Jacquet made the case on her blog Guilty Planet that people should abstain from eating seafood to help save life in the ocean. With fish populations collapsing worldwide and scientists sounding warnings that ocean ecosystems—as edible resources—have only decades left, it is perhaps surprising that Jacquet’s call to abstain from consuming seafood is a lone voice in the wilderness, but thus far few have called for seafood lovers to abstain.



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Copyright Rhett Butler 1994-2009

The copy for fish.mongabay.com was written in 1994-1995. Therefore some information such as scientific names may be out of date. For this, I apologize. Feel free to send corrections to me.