5 most amazing marine life
1. The Humboldt Squid. The size of this predatory marine life can exceed 2 meters. Inhabits squid off the coast of Central America at a depth of 700 meters. The…

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Herring
Typical representatives of the nekton is the herring. It is well known that this fish has great commercial value. Until comparatively recently, it was promyshlyali in such large quantities that…

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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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eggs

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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

Piranhas river monsters

The Number – Cypriniformes
Family – Priniv
The genus/Species – Serrasalmus nattereri

Basic data:
SIZES
Length: average 20 cm, in some species up to 50 cm.
Mass rarely exceeding 1.5 kg.

REPRODUCTION
Spawning: March-August.
Caviar: a few thousand eggs.
The incubation period is 10-15 days, depending on water temperature.

LIFESTYLE
Habits: constant float huge flocks.
Food: primarily fish; attack mammals, floating or come to the waterhole, and birds.

RELATED SPECIES
18 known species of piranhas, 4 of which are dangerous to humans, although fatal cases have been identified. 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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The mantis shrimp
Males shrimp-mantis have a very bright appearance. In the eyes dazzled by such a variety of colors. In addition, these shrimp have a unique vision that allows them see objects…

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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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