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 its price was very low, despite excellent taste and nutritional quality. In recent years, due to the sharp increase of the fishing fleet and introduction of intensive methods of production occurred overfishing. The number of herring in the oceans have decreased dramatically.
If in the future the intensity of the herring fishery will increase or even remain at current levels in the coming years, this valuable food fish will become a Museum rarity. Reduction of stocks of herring and concerned consumers and fishermen, but the first sounded the alarm scientists.
The appearance of the herring is well known to everyone, but it is unlikely that the layman can easily distinguish one kind of herring from another: the difference between them for the untrained eye to be insignificant. Species differences are not only in the details of the structure and the size of the fish, much deeper than they differ from each other in biology, numbers, distribution. Therefore, the fishery for mackerel fishes should be strictly subordinated to scientific data, to each type needs special approach. Continue reading
Pros: tasty, inexpensive, very useful
Someone in my family loves fish. I have therefore tried many kinds of fish and ways of cooking. And in this case, the issue price of not standing in the first place.
At first, I often bought salmon. She is tender, beautiful and expensive.
Tried to buy tilapia, sea language, sea bream, trout, carp, catfish, pike, sturgeon, hake, and do not list.
Later read a lot about what fish to bring us where it was harvested, the conditions in which it inhabits. And found a bad moment.
It turns out that in addition to dividing the fish of the sea and river, the fish is divided more and growing conditions. So, fish is artificially grown and living in natural conditions.
Fish grown in razvodnyh (fish farms), to put it mildly, is not subject to the use. Fish live in artificial ponds in a large quantity, often in dirty water, fed unnatural feed, is constantly sick. Therefore, it is continuously fed with antibiotics (to prevent mass mortality), as well as growth hormones (to quickly sell the fish maximum weight. Continue reading
In the Atlantic ocean, the Black sea and off the coast of India dwells amazing and a bit scary fish monkfish .With it is associated a very curious phenomenon. For a long time researchers could not understand why all the water harvested from fish of this species are invariably females. As they multiplied.
Only after the beginning of the heavy deep-sea studies have found out that monkfish has developed a unique mechanism of reproduction. It turned out that the male and female fish monkfish differ in size a thousand times. The female is a large part of his life spent in the coastal zone and can grow up to two meters long, and the male also reaches only a few centimeters and lives at great depths, where is the justice in this world = ( . This was established when he was discovered living at depths of more than two hundred meters tiny fish acerated. Caught deep-sea dredges of acaracide were always males. Only after painstaking research revealed that acerated is (many readers probably already guessed it) a male sea devil, and not a separate species or a subspecies.
To find such a small male helped another feature of the sea devil — the annual migration of huge females on the depth taken by them for the purpose of procreation. Continue reading
Going on vacation to Egypt, it should be remembered that in the Red sea is home to many dangerous species of fish and shellfish and that your vacation turned into a nightmare, it is necessary to observe elementary safety rules.
One of the biggest predators – shark in the Red sea about thirty species. As a rule, sharks don’t attack people for no reason, not approaching the coast, but accidents still happen.
Very poisonous mollusk, the cone, seeing him, do not rush to grab hands. The venom of this marine life causes an immediate paralysis of the limbs, can occur stop breathing and anaphylactic shock. According to statistics, every third bite of the cone is lethal.
Starfish. Are about the size of one meter. It is beautiful, they have at their ends are sharp spikes. If you accidentally step on star, get a sharp prick and burning sensation. Continue reading
Such fish as carp and tench in the main lead independent lives and inhabit deep waters, in stagnant water, away from other fish. White and motley silver carp are quite large fish and can reach a weight of over fifty pounds. Love the warmth, eats the phytoplankton, and green algae. Channel catfish often exceed thirty pounds. To food consume almost everything that may feed on small fishes. The eel is a predatory fish with a long torso and feeds on other fish eggs, small fish, frogs. Pike is a predatory fish, into the diet of its food consists of the larvae of dragonflies, leeches, tadpoles, and other fishes.
Of course, to the fish to ensure the most suitable conditions for the existence of their need to feed. There are many videos, which explains the intricacies of proper nutrition of freshwater fish in home waters. Food can serve as feed for pigs, as well as special mixtures, wide range of which are sold in pet stores. At one time you have to throw so much feeding, how many fish can eat in 5-10 minutes. Continue reading