Common Rudd– Scardinius cerythrophthalmus. It belongs to the household Cyprinidae.
Rudd has thick, high and also wide body. From the ventral to the anal fin is covered with ranges keel.
The rear of the fish is brownish blended with eco-friendly, the sides Golden. In large specimens there is a characteristic extreme reddish coloration.
Description redfin
Ranges from fish of big, firmly seated. The edges of the scales have a brown rim.
The fins are red staining of various strength. Back fin has a black base, the chest is grayish. Back fin has 3 not branched and also 8-10 branched rays, anal 3/ 10-13 specifically.
Tiny head with turned-up mouth. The edge of the lips redfin has a yellow border. Pharyngeal teeth of Rudd-serrated, side to side pressed. Their tops are curved into a type of hooks.
In 37-45 side line ranges. The Rudd is commonly distributed in waters of Europe to the Urals and also Central Asia.
Regardless of all the elegance of this fish, it is categorized as low-value and also slow-growing.
Behaviors redfin
Rudd, like any other fish, has a strange personality. Nature has kindly granted by her appeal, can thus its wish to flaunt, swim on the surface and also creating jealous glimpses and also sighs of the fishermen. They state: « Look at me! Who can compare with me ?!»
» Fish do prefer to keep the center and also upper water layers.
As well as places for their environment, Rudd chooses unique. Greenery– compulsory attribute. Reeds, pond lilies, reeds, arrowhead and other marine plants are residence to this fashionista. They offer defense from killers, provide shade and food.
You ought to recognize that near the shore, in thickets of plants lived in by the juvenile fish. It typically keeps in groups as well as invests here all the time. Huge individuals pick to dwell in remote from the coast places. This is usually undersea hillsides with the visibility of greenery. To the shore the large Rudd comes just to search for food.
But undersea plant life ideal for fish just in the duration of blooming as well as growth. At the end of summer begins to occur decline and also degeneration of these plants and the fish goes into the reeds and walking cane.
Rudd leads solely diurnal, and during the night enters into the turf and cozy the reduced layers as well as holds the dark, still, resting.
Additionally, Rudd studiously stays clear of fast currents. The fish favors quiet water of lakes as well as areas of rivers with a peaceful present. Bottom chooses a soft, moderately silty. Such is the bohemian as well as peaceful life.
Rudd consumes just in the warm time of the year. In our latitudes, is from may to September.
After cooling, the adolescent leaves in the winter months in the walking stick. Huge samplings are transferred in the pit in the midsts.
Rudd, as a result of its simplicity and capacity to endure significant oxygen shortage in water, able to withstand the hardest of winters months.
Food rudds
Although that Rudd are commonly located with a roach as well as some other varieties, there are considerable distinctions regarding the habitats and food. Consequently, competition in these species is little.
After the transition to independent feeding, the young fish starts to consume zooplankton. Essentially it is little cladocerans and also rotifers. However, due to the instead high price of development and also framework of the dental device, Rudd steps rapidly to food of large zooplankton crustaceans. Your food fry finds in the undergrowth plants of the coastal area.
The almost all of the diet plan of grown-up redfin are the young shoots of water plants, filamentous algae (Cladophora, Spirogyra).
Not away the fish and consume the pests caught in the water. This technique of power redfin, helps with the structure of the dental device– her mouth is big as well as guided upwards. On this property is based a few ways of catching fish. With them we will consider following.
The conformation of the mouth additionally allows Rudd to take in the eggs of molluscs on a fallen leave underside of cases (water lilies). You can plainly hear the particular cocanie.
Rudd may additionally eat the eggs of amphibians as well as other species of fish, various worms as well as larvae.
Major Rudd can take advantage of juvenile fish, revealing the predacious habits. Particularly strongly these feeding routines begin to show up in autumn, prior to leaving the fish for the winter months. The number of food microorganisms at this time is sharply decreased, and also fish need to plump the supply of nutrients. That represents the Rudd comes to be a robber.
Reproduction redfin
The Rudd spawns rather late, together with tench and carp, when the temperature level of water greater than 16S. In our latitudes this time is in may– June.
All Rudd during that time gets even more vivid coloration, and also the head and rear of males, appear characteristic excrescences. Ranges are not getting particular, such as a cockroach, strong roughness.
Rudd ends up being sexually Mature when getting to 10-12 cm In the conditions of Belarus is age 3-4 years.
Spawning of this fish is portioned as well as implemented in 2-3 hrs.
Spawning fish takes place in the early morning and also daytime. To establish where reproduction is possible just by swinging the reed and also reed stems. The fish are not jumping out of the water and also the procedure of spawning is pretty quiet, since spawning occurs on the bottom.
Furthermore, it must be kept in mind that to spawning fish suits tiny groups as well as do not form substantial accumulations.
Rudd proactively fed throughout breeding and also if You were to spawn, after that return house with an abundant catch.
Eggs fish tiny, with a size of regarding 1 mm, various shade sections. Fully grown eggs, the first section, has an intense yellow shade, the subsequent portion is pale yellow in shade, and the last one whitish.
Deposited propel origins of plants and discover it quite tough.
Fertility redfin excellent. With a size of concerning 13 cm outright fecundity is greater than 10 thousand eggs, with a size of greater than 20 cm– greater than 125 thousand eggs.
The family member fecundity of fish is 220 — — 400 eggs per 1 g of body weight.
In spite of the large number hold off eggs, survival of juveniles is minimal. This is due to the loss throughout incubation and throughout larval development, and also the fact that a substantial component of the eggs not fed in any way.