About the benefits of fish
Irreplaceable fish The main source of protein in my diet is fish, unlike meat, the protein contained in fish is easily digested. Fish, unlike mushrooms. has no contraindications and can…

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Catfish-the Changeling (Synodontis nigriventris). Description in the aquarium, spawn
Catfish-the Changeling (Synodontis nigriventris) Continent: Africa Prevails in the regions: the basin of the Congo Body length: 10 cm Food: carnivorous fish Habitat: fresh water Catfish-shifter, or synodontis nigriventris, belongs…

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bacteria

Life in the deep sea

The sea always attracted people to him, maybe even more than the sky. The world ocean is the habitat of a huge number of plants, fishes, sea animals, including mammals. There are several zones of ocean life. Most inhabited the upper water column, down to 300 meters, as this is the most illuminated part.Area at a depth of from 300 to 1000 metres is the name of the region of penumbra. At a depth of over 1000 meters there is an absolute darkness and intense cold, there are no plants.

The pressure at great depths is very high, at a depth of 3800 m, the pressure is 400 kg cm3 and at a depth of 10900 m – already 7250 kg cm3. The denizens of the deep in different ways have adapted to these difficult conditions. The only food source of deep-sea animals – the corpses of the inhabitants of the upper part of the ocean and bacteria.Their eyes are either absent or reach a high degree of development they are sometimes of enormous size, are often placed on the lateral appendages of the stems or telescoping, is provided with a lens system. So, the eyes of the coelacanth fish have a cylindrical shape, this allows it to see distant objects. Continue reading

Fish in the Mediterranean sea
Mako shark (Isurus oxyrhinchus) - the champion of the fastest sharks, reaching up to 4 meters long and weight more than half a ton. Belongs to the category of very…

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Diseases of aquarium fish guppies
Aquarium fish guppy (Poecilia reticulata or Lebistes reticulata) are considered to be strong enough and healthy fish, so rarely get sick. But still at the wrong conditions of keeping and…

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