This is the case between the new moon and the full moon, known as the "spring tide". At the low tide of spring, low tide is very big. The opposite situation is called "tidal wave" and occurs when the sun and the moon are at right angles. The attraction of gravity is opposite, the tide is very low. 4 Coast with many rocks These coasts are formed by various natural forces. These forces include rising and falling tides, wind, wave strength, and temperature changes. They consist of rock shelves, rocks and pebbles.
The brown algae generally found as seaweed include kelp and fukasu. They are widely distributed in colder regions, not in tropical waters. Kelp is one of the largest algae, and some species of the Pacific and Antarctic Macrocystis and Nereo Costis are 33 meters (100 feet) or more in length. Another kelp kelp is abundant on the Pacific Ocean and the Atlantic coast. The Gulf of Mexico (Sargassum) is a free floating group commonly found in the Gulf Coast and the Sargasso Sea.
The state of brown seaweed, Fucus vesiculosus, reflects the dramatic change taking place in the richness and distribution of the Baltic Sea. The Fucus community offers evacuation centers, egg laying and feeding for many economically important fish. However, the current Fukasu algae has drastically decreased: in the southwestern part of Finland almost disappeared in the latter half of the 1970 's, near the keel of Germany from the 1950' s, the depth of Fukas became less than 2 meters. Biomass has declined by 95%; in Sweden it is currently limited to a depth of 3-4 meters which originated 6 meters in the 1940s. Although eutrophication of human activity seems to be the basis of these changes, a synergistic interaction with natural ups may lead to the disappearance of F. In different areas, Laminaria saccharina, mussel (Mytilus edulis) and some filamentous algae replace Fucus
Seaweed species of commercial interest in Croatia include Laminaria digitata and Fucus species (Fucus vesiculosus, Fucus serratus and Fucus spiralis), which are mainly used separately for their valuable carbohydrates, laminarin and fucoidan I will. The value added department of the Croatian seaweed industry has revealed to produce attractive high quality products for use as functional body care products and cosmetics. However, to date, limited activities have been designed to utilize seaweed resources as a material for functional food ingredients having health benefits beyond consumer's basic nutritional requirements. The CCRES ALGAE research program is currently working on the development of marine functional foods in Croatia.