Fish of the asp is similar to a siga, but it does not have a small fat fin between the tail and the spinal fin. The asp is a big mouth ending under the eyes. It grows up to one meter long and weighs almost 10 kg.
Description of the Fish of the asp
She has an elongated and compressed body with a long pointed head, for the most part silver, the back of a black-olive or greenish-gray color. The iris is silver, with a narrow golden circle around the pupil and a small gray pigment in the upper half. The lips are silver, gray on the upper part, there are specimens with bright red lips and rainbow shells. The tip of the lower jaw protrudes and enters the recess on the upper jaw.
Gill membranes are narrowly attached to the isthmus, almost under the back edge of the eye. The species has pharyngeal elongated teeth, tightly located, hooked.
The back and tail fins are gray, the rest of the fins are transparent without pigment, the peritoneum from silver to brown.
Where you can catch
The asp is found in the Rhine River and in the northern rivers in Europe. Lives in the mouths of rivers flowing into the Black, Caspian and Aral Seas, including their southern shores. Fish is actively populated into nonendemic conditions for the sake of fishing in Belgium, the Netherlands, France. Attempts to populate reservoirs by asp were taken in China, Italy.
The asp is a river look that lives in the channels, tributaries and backwaters. The fish spends the winter in deep pits, wakes up in the spring, when the rivers are fullflowing and goes into the spawning grounds, which are located in rivers, open areas of lakes with significant drain and only in rare cases are these places, weakly overgrown with rough vegetation, such as reeds and reeds.
Reproductive biology of the asp
Fish migrate upstream for spawning from April to June. Spray occurs in quickly current water on a sandy or pebble substrate. Caviar sticks to gravel or flooded vegetation. Incubation lasts 10-15 days, the female lays 58,000-500,000 eggs with a diameter of ≈1.6 mm. Fry of the asp in length 4.9–5.9 mm. Intranships are reached after 4-5 years.
What is the asp
This fish is the only fishskinned appearance in the family of carp. In the early phase of life, the asp is fed by crustacean, bottom fauna, terrestrial insects that fell into the water, and fish larvae. The most important food products for adult asp:
The old peers also eat fish that young relatives do not eat due to the presence of spikes, such as:
The asp feeds also:
For the asp, they hunt for sports fishing, and fish is economically beneficial only to individual fishermen. Recreational fishing and tourism create a demand for food, accommodation and transport, camping, boat skating, rowing on canoe and more. Sports hunting for the asp.
There are no large farms for breeding this species. The asp is extracted in Iran as a grocery fish, but it makes up only a small part of the catch.
The asp is deliberately populated in reservoirs, starting from the end of the twentieth century. The fish does not have a negative effect on new habitats, does not affect the population of endemic fish.
The best time to catch an asp
Catch fish relatively easy immediately after spawning and in the phase of the full moon, when the asp is actively fed. In general, it is caught day and at night, with the exception of the period of spawning.