probability

Dangerous dwellers of the Mediterranean sea

Upon closer inspection, the monster turned out to be some third-rate, fit only to frighten their young children. In a word, to the Maldives with their tropical abundance of all poisonous reptiles our sea obviously does not hold. However, read it and was horrified. It turns out that affectionate and warm Mediterranean sea just teeming with all sorts of creatures, ready to grab the tender, defenseless body of the swimmer, to wrest from it a piece of meat to poison or, at worst, a painful sting.

However, in 15 years of searching for adventure and snorkeling the biggest trouble that happened to us, is hopelessly corrupt bottoms, on which “spit” ink a startled octopus out of water.

The main principle for anyone wanting to dive into the sea plain and simple, as a rake: “I don’t know – don’t touch” . The more dangerous animals and the more troubles it can cause the bather, the careless behaves closer and admit to myself, naively believing that everyone is familiar with her bad temper and will not touch.
If you sobiratelnitsa on wild stony beaches, to the main principle “don’t touch anything” it would be good to add another special Slippers . no sea urchin is not terrible. Continue reading

The importance of fish in human nutrition

There are some foods that are simultaneously rich in iron, phosphorus, zinc, magnesium, calcium, selenium, vitamins A, E, D, and amino acids that are necessary for the normal functioning of the cardiovascular system, thyroid gland and stomach. But in fish, all these elements abound. Therefore it is very importance of fish in human nutrition. In addition, this product small fat content (30%), it is perfectly assimilated by the human stomach digests the protein contained in fish, only 1.5-2 hours compared to 5 hours it takes to digest, say, beef.

The importance of fish in nutrition

People suffering from excess weight, just perfect river fish, which contains 2.5 grams of fat per 100 grams of weight. But suffering from diabetes can have it without any restrictions, because the number of carbohydrates it is small – only 0.1%.

Fish, competing in this regard with the chicken, is an excellent source of high quality protein which contains all necessary for normal functioning of amino acids. It also differs from meat protein by the presence of methionine.

Due to the fact that the collagen that makes up connective tissue, has the property of rapid transition in a soluble form, fish is easy to cook, and its tissues become loose, blagodaram provides maximum and rapid absorption of all nutrients. The most rich in protein fish include salmon, trout, and salmon, Beluga, easier to say that all representatives of groups of sturgeon and salmon. Great importance in human nutrition fish is also underpinned by a very high nutritional value due to high concentration of fatty acids. It refers to oily marine fish – salmon, mackerel, herring, trout, salmon and other things. Continue reading

Predatory aquarium fish in the aquarium

Predatory aquarium fish make exotic home aquarium. There are many kinds of predators. The larger the size of these fish, the more interesting it is to watch them.

What features have aquarium fish predators

These fish bring a lot more trouble than the usual “peaceful” fish. Before purchasing predators, experts advise to carefully weigh the pros and cons. Predatory fish in the aquarium require attention. They always show their natural instincts.

The most popular piranhas, cichlids. gyrinocheilus and fish with the strange name “Indian small knife”. In very large aquariums often bred the snakehead. Under natural conditions, large specimens reaching 1 meter in length and can weigh 7 kg. These fish look very colorful.

snakehead

Together with the snakehead can contain only big fish, such as polypterus. Tarakanov and astronotus. Otherwise, the predator just swallow them. Some species may show intraspecific aggression.

Precautions

Predatory fish can not settle with the usual. In one aquarium a valid run of fish with similar habits and environments. In isolation, predatory aquarium fish do not behave as aggressively as in nature. However, poveretto not worth it.

In the aquarium it is not recommended to lower your hand, if you have fresh cuts. As practice shows, it attracts the attention of predators. They can cause serious injuries. Continue reading

Safety on the beach
Jellyfish are attacking the Mediterranean. Biologists-marine painters, studying the waters, is known among the most numerous and diverse populations of marine fauna, are sounding the alarm. If these invertebrates will…

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Great white shark
Great white shark, the heroine of the novel by P. Benchley "Jaws" and the movie of the same name, has a bad reputation as man-eater. Yes, it is the world's…

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The water temperature for aquarium fish
Have you ever wondered why different fish need different temperature? And what is the impact on them of the discrepancy? And how they are sensitive to changes? Quick changes in…

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