How fish breathes?
Hundreds of thousands of years ago, long before the appearance on Earth of man, the oceans already swam fish. At that time they were the most highly developed creatures. Since…

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Aquarium fish
When it comes to buying a pet, people often forget about aquarium fish. And for good reason, because it's a very aesthetic animals can teach responsibility because they require a…

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How do you sleep aquarium fish?
Watching fish in an aquarium, you'd think they never rest or sleep. In the understanding of man, they are in constant motion. However, like all animals, fish periods of active…

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marine

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Directory of commercial fish

Centrolophidae – Stromateidae – Perciformes

Seriolella porosa, Seriolella punctata Silver warehou, Savorin

length: 67 cm; weight: 3 kg (average 500g); the production season: in bycatch, almost all year round.

Habitat

Savarin inhabits the Eastern Indian ocean (South Australia),South-West Pacific (New Zealand) and Southeast Pacific (Chile).

General information

Savarin (Warehou) – marine fish squad okuneobraznyh, common in tropical and subtropical seas.

Nutritional value

The content of mineral substances and trace elements: potassium (282 mg/100g), phosphorus (200 mg/100g), sodium (100 mg/100g), calcium (20 mg/100g). Continue reading

Marine aquariums

Marine aquariums can be divided into several types, depending on the animals that inhabit coral reef, fish, mixed and thematic.

Of course, the most memorable and prestigious, but at the same time, the most difficult to maintain coral reef .

The reef can be represented by soft or hard corals. In addition corals in the reef there are sea anemones, anemones, and many other subjects, including it might as well be fish, but usually small, inconspicuous and completely in a small amount.

Under natural conditions, the corals are in perfectly clean water, so we need to take seriously the issue of water quality, to reproduce and maintain the same properties of the built environment in a marine aquarium. In addition to special complex filtering system, the so-called “living stones” perfectly fulfill the role of water purification, both as a design element and substrate for corals. Another important focus in the marine aquarium – quality and correctly chosen spectrum lighting. Continue reading

Do all fish spawn?

Most fish lay eggs, and it is fertilized outside of their body. Fish that spawn, are called oviparous. But some fish give birth to live fry. Such fish are called viviparous.

To live-bearing are guppies, sword fish. The eggs of these fish are fertilized inside the mother’s body and develop there until the fry. At a certain time they are born. This happens 21 days after fertilization.

The number of eggs, fertilized and deferred, differs greatly depending on the type of fish. Some fish lay eggs and abandon her, without showing her any more interest. This is a fish that produce huge amounts of eggs. Those fish that look after their young, they lay only a few eggs.

Caviar can be of two types. One kind of eggs floats on the water surface, the other sinking. The caviar, which floats, is called pelagic. It is usually tiny, bright and contains a lot of protein. Caviar, which is sinking, is called Donna. It is usually harder and more protein in it. Continue reading

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An aquarium of 50 liters
Aquarium (lat. aquarium ) — transparent container for permanent keeping of aquatic organisms. It typically refers to a home aquarium (room) aquarium for keeping fish aquarium in home; for technical…

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Amazon com the Arkhangelsk province
Fishermen in the Arkhangelsk region took out a strange catch in the area of ferry crossing Bereznik and aspen: they pulled from the water an unusual fish with the head…

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