Signs. Body elongated, laterally compressed, glabrous. The coloration of back, sides of body and all fins, except the ventral, zelenovato-grey, almost black. Dorsal fin very short, is located ahead of the pelvic fins. Spiny rays of the pectoral fin serrated on the outer edge. Lower jaw longer than upper. Mouth facing up.
Distribution. Big fish, reaching 5 m length and 300 kg weight, inhabiting rivers and lakes of Europe from the Rhine to the East. To the North of the som is to the South of Finland, South to Asia Minor, the Caspian and Aral seas and flowing into their rivers. No catfish in the rivers of Siberia. There is no com also in England, in the Iberian Peninsula, in France, Italy and Western Greece.
Feature. Soma colour variable, usually olive-green, almost black back, white belly, flanks irregularly shaped spots. Small reed form, inhabiting the southern part of the Aral sea, intensive black. Dorsal fin catfish in a tiny, barely noticeable, no fatty fin, but the anal is very long. Continue reading
Waters of the Andaman sea that washes the Western part of Thailand, is rich in diverse marine life and sharks. Does this mean that bathing is dangerous?
Yes, indeed, in the Andaman sea sharks swim. Moreover, almost all of which is considered a dangerous species great white, reef, and tiger, and black. They often say, how about sharks-cannibals. In the coastal zone are found the Mako shark and blue sharks and hammerhead sharks. There are a few quite harmless to human kinds – nurse sharks and Zebra shark.
However, despite all this, your chances of becoming a victim of the sharks here are very small. Thailand is a fairly safe area, because there is no particular concern about marine predators the rest of the family with children. Shark attack in Thailand — the big rarity. First, sharks don’t swim close to the shore. Secondly, over the last few decades, there were no reported cases of shark attacks on humans in these waters. So to meet a shark in the Andaman sea area is possible only in a saltwater aquarium or specially going to scuba dive in the open sea. Continue reading
Catfish is the largest freshwater fish. Only the larger members of the family of sturgeons (such as Beluga – up to 1.5 tons), but they are strictly freshwater. Sturgeon are diadromous fish that can live in fresh water, and salt. Rumors, what is the weight of the largest catfish in the world, there are various. According to contemporaries, in the 18th and 19th centuries, when our rivers were much cleaner, and fishermen – less, these freshwater predators grew to an enormous size – up to 400-500 pounds and more. But now sometimes there are real river monsters.
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From the life of a river monster
Small catfish feed mainly on aquatic insects and their larvae. A little older, pass on clams and frogs. As adults, seasoned catfish can eat a big fish (even pikes), inadvertently short time perching to feed the ducks rarely attack a person. The last statement is not idle “horror story”: there are documented cases in the stomach of captured catfish were found the remains of previously missing children or women. Continue reading