Ten years ago, on the island of Sipadan in Malaysia, I took a picture of my first shark. It was almost certainly a shark-Zebra, Stegostoma fasciatum. The current was carrying us along sheer walls, and she, mysterious and beautiful, gleamed in the distance. My heart jumped to somewhere in the Adam’s Apple, I quickly raised the camera and took this blurry picture.
The shark disappeared into the depths, and I got a new hobby — a passion for cartilaginous fish. Have devoted a considerably long time, wrote some articles , even led a couple of sections in Wikipedia. Traveled to different corners of the planet to dive with them.
Of all the sharks I liked Fox, or as she is known in English, thresher. She is like a shark-Zebra with long tail and harmless disposition. Graceful, smooth and swift. Without the aura of celebrity, without the reputation of a ruthless killer. So to speak, a humble toiler of the ocean depths.
Thresher shark (Alopias vulpinus, Thresher shark). Illustration from the book “A field guid to the sharks of the world” Continue reading
Dangerous animals of the Black sea. Medusa Aurelia. Medusa kornerot. Stingray. Black sea Scorpion. Weeverfish. The Scorpion visible.
“Training project in geography” – the rating of the project. The performance criteria of protection. The idea of the project. Evaluation of the project. The tasks of the project. Negative trends in the industry. The construction of a metallurgical plant. The urgency of the problem. Problem. Importance in the economy of the country. Projects of students. Develop your own ways to resolve the problem.
“”Far East” grade 9″ – the Climate of the Far East. Only on the Kamchatka Peninsula more than 20 active volcanoes. Coal reserves in the far East. Biological resources. The Topography Of The Far East. Internal water. The area of coniferous-broadleaved forests. Ores of nonferrous metals. Natural conditions and resources of the Far East. Natural resources of the Far East. Natural areas of the Far East. 18 oil and gas fields. Continue reading
In honor of the coming of the pores of the holidays we offer to your attention a selection of interesting facts about the Black sea.
The first mention of the Black sea are found in documents relating to the V century BC. It is on the Black sea, Jason and the Argonauts went to Colchis for the Golden fleece.
1. The ancient Greek name of the sea — Pont Aksinsky (gr. Ἄξενος Πόντος), meaning “Inhospitable sea”. It is assumed that the sea was named so because of difficulties with navigation. Later, after a successful exploration of the coast by Greek colonists, the sea became known as the Pontus Euxinus (gr. Εὔξενος Πόντος, “Hospitable sea”). Romanian Black sea Marea Neagră is called.
2. A characteristic feature of the Black sea is complete (except some bacteria) absence of life at depths greater than 150-200 m. the fact that the deep layers of the Black sea is saturated with hydrogen sulphide.
3. In the scheme of currents of the Black sea there are two huge closed cycle with a wavelength of 350-400 km In honor of oceanographer Nikolai Knipovich, who first described this scheme, it was called the “Glasses of the Knipovich” Continue reading