جستجوی مقالات مرتبط با کلیدواژه "salt water aquarium" در نشریات گروه "شیلات"

Sea Urchin is a large and diverse group of aborigines, of which more than 800 species have been identified in various shapes and sizes in thousands of different habitats of various seas and locations in terms of environmental conditions, and are often found in hot and cold oceans around the world. Scattered. These creatures, like their branches, have an internal skeleton of calcium carbonate and have a radial symmetry throughout the life cycle, often sedimentary, and some are also suspended. Marine tafts have several important roles in aquatic communities, including the importance of them in feeding for different species of aquatic animals, the displacement and rotation of food in the aquatic system and their role in the structure of the food chain of a reference system The aesthetic value of tributaries is also of particular importance due to the attractiveness of behavior, movement and coloring, and is used to aesthetize the aquarium environment as a symbiosis with some fish, Sea turtles in the global market have a high commercial value and have billions of dollars annually, which in some countries are used as an expensive food and sometimes for the preparation of a dry product, even as a feed or drug, and in some countries; Our country's sentences are used as decorative and souvenir items; in addition, due to their aesthetic and biological values, they can also be used in aquarium environments.