The Panda catfish is a loveable, friendly fish. Inhabits the upper Amazon river in the basin of the river Ucayali in Peru. Can live both in clean and turbid waters of streams and tributaries, often floats on the surface of the sandy bottom. In this region the rivers are fed by melt water flowing down from the snow-capped Andes, because the tetras hiding Panda accustomed to the rapid flow and relatively low temperature ( about 19 ° C).
The catfish on the body attractive figure with a combination of dark and light stripes, resembling the coloration of the giant Panda (Ailuropoda melanoleuca) . which gave its name to the fish. This catfish is the best choice for a beginner, it is peaceful, hardy and easily kept and bred. Corydoras panda was very expensive and was in great demand when first appeared in the late 1970s. the popularity remains the same still, but now it has become much more accessible.
Panda catfish are Armored catfish – they have two rows of Horny scales along the body. The genus name is from the Greek words Cogu – and helmet Doras – skin. The fish has a dense and flattened laterally body with a high back. The upper and lower jaws of the mouth of the lower pair of antennae. The dorsal fin is bilobed, black, with transparent upper edge; in females — rounded, the male’s is pointed and longer. The other fins are yellowish. The body is orange-coricnevogo with wide black stripes around the eyes fish, and on the basis of the caudal fin.
Tetras hiding Pandas are omnivorous and will not give you much trouble in feeding. As foods it is possible to use specialised dry feed (pellets, flakes), and also can give live and frozen food – Tubifex, Daphnia, Artemia, bloodworm. Continue reading
Carp (fish), carpia, Korop, carp (Cypriuns carpio), fish herewith. Cyprinidae (see), characterized by little oblate body covered with large scales, a blunt rounded snout, and 4 thick tendrils and serrated on the rear edge of the third ray of the dorsal and anal fins. Found in rivers throughout Europe, Asia, and divorced in the North. America, also in the Azov, Black and CASP. seas at the mouth of the rivers; reached. length from 30 cm-1 m, rarely up to 1.5 m with a weight of 15-20, and up to 35 pounds. There are several varieties (Royal Hungarian K.). In Europe everywhere is bred in ponds where live 100 to 200 years, and feeds on vegetable and animal food.
Cyprinids (Cyprinidae), a family of bony otkratougolnah (Physostomi) fish. Numerous (up to 2 thousand species) members of this predominantly freshwater family are characterized by the absence of oral teeth, which is to soften food, there are several rows of teeth on ninepatch bones. Common everywhere except Rep. America, Australia and polar regions. Males during the breeding season are the so-called. marriage dress, reflected red or pink coloration. Many are commercial fish; to K. are: carp, carp, gudgeon, roach (roach, roach), tench, nase, bitterling, Sopa, vimba, bleak, Shemaiah, sabrefish. (Encyclopedic dictionary of Brockhaus and Efron).
Carp is the flagship of the family Cyprinidae. But first, we are not talking about him, and about his ancestor — the common carp. This river carp, or carp,is very beautiful. It is covered with unusually large dark Golden-yellow scales, which on the back of it, with a bluish tinge, and the belly lighter; it seems as if the Golden field he is all strewn carnations with copper hats. Continue reading
Greenhouse gas emissions in the coming decades could have a significant impact on oceanic life forms, with such dire predictions were made by the expert on marine biology Michael Beeman from the University of California in Merced. – Concern about this issue in informed circles is growing because human activity is very rapidly changes the pH (acidity) in the oceans. And although we don’t know what will be the final effect of changing the nitrogen cycle, the experiments are being conducted worldwide, and based on them we can assume that the effect will be global.
According to him, the growth of carbon dioxide emissions, increased by the burning of fossil fuels and other human activity increases the acidity of water, which, in turn, significantly alters the nitrogen cycle in the sea. And because nitrogen is an essential nutrient for living organisms, although, as it turned out recently, some life forms can adapt to other elements, eventually the process will affect all forms of marine life, reports innovanews .
During his research Dr. Beman lowered the pH of water at six different sites in the Atlantic and Pacific oceans. In each case, when pH was lowered, and decreased generation of oxidized forms of nitrogen, which usually uses phytoplankton and drugability. This nitrogen is produced through the oxidation of ammonia in sea water by microorganisms. According to the scientist, these results can be used to assess the potential impact of oxidation on the nitrogen cycle in the sea and marine life forms in General. But the observed effects require additional research. Continue reading