eL Rutilo (red red, Family Cyprinids) is a freshwater fish native brackish water and most of Europe and western Asia. Typically is a small fish, reaching 35 cm long, rarely reaches 45 cm, and weighs up 1 kg, rarely reaches 1.8 kg. It is very common and often enjoy meat as food.

Description: It has an elongate tail with silvery scales.

Habitat: It is often in running water, rutile preferred depths 2 a 3 m; It can also be found in calm waters, lakes and reservoirs. In Spain you can find punctually in lakes and reservoirs in Catalonia, It has been introduced by fishermen.

Behavior: It is a gregarious fish that lives in banks;the biggest hold them something apart from the rest.

Feeding: small molluscs, insect larvae, gusanos annelids, moss, algae and insects surface.

Reproduction: from April to June or July, when the water temperature is at least 12 °, the female lays 50.000 a 100.000 eggs. Rutile grows slowly over a period of 2 a 3 years

Rutile has a non-keratinous exoskeleton of several layers and a 100 micron thick, It consists of connective cells. This epidermis has glands, but there glandular cells that secrete a mucus that protects fish scales. Scales protect the rutile as an exoskeleton.

Rutile has a head with two eyes, nostrils blind (sac on one side) They do not open into the mouth like other fish. Rutile also has a "lateral line" along the side, It is running from end to end of the body. This line of special scales is equipped with holes connecting the outside of the body to the nervous system, allowing detect nearby movements collecting small variations of longer wavelengths in water, caused by movements of other creatures.

Rutile has an aerodynamic shape, It is four times longer than wide. Two types of fins are noticed:

unpaired fins, They include the dorsal and caudal fins.

paired fins, They are forming symmetrical pairs, They include pelvic fins at the rear and at the front flippers.

The first give the fish stability in water. The latter are used for guidance.

Rutile has four pairs of gills arranged on both sides having a hair whose function is to keep out foreign particles. Galls form a V arrangement. there are also openings in the guts that are used as heat exchange surface to extract oxygen from water.

The heart is next to the gills, allowing blood to be pumped through the gills with considerable pressure. The circulatory system is in other respects quite simple. Deoxygenated blood through the heart only once.

Rutile fishing on the island of Great Britain is relatively easy because the species is found in most of the rivers, lakes and ponds in the country. Larger individuals tend to be particularly elusive, but smaller are easy to capture relatively light rod and a bait such as maggots(fly larvae) or worms. Also trap baits like corn and can be caught in different ways. The only limits are the size of bait. Overly large usually they avoided because the rutile can not swallow.


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