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Find the best moment to go fishing in Trevethin, the most caught species, the techniques used, go fish with anglers nearby, find a fishing charter or guide, save your spots and discover new ones.

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N°1 | The Ide fish

The Ide fish belongs to the Cyprinidae family. Its size is generally between 30 and 50 cm but this fish can reach a maximum length of 80 cm for a weight of 5 kg and an age of nearly 20 years. Spawning takes place from March to April. Females lay between 60,000 and 160,000 eggs. The fishery is open from June to March. The body is long and laterally compressed with a terminal mouth pointing upwards. The head is strong with a small mouth, obtuse snout and yellow eyes. The back is rounded. The anal fin has a concave rear edge. The back and upper part of the head are greyish-green to brown; the yellowish-brown flanks have silvery or golden reflections; the belly is whitish. The fins are dark except for the pelvic, ventral and anal fins which are frankly red. In older and larger specimens, the body color may turn yellow/bronze.

Fishing period : June to March

Minimum size : 25 cm

Difficulty :

N°2 | The Salmon fish

The Salmon fish belongs to the Salmonidae family. It can reach a maximum weight of 47 kg for a height of 1.5 m. The current size of the salmon is 50 to 70 cm, with a weight of 2.3 to 9.1 kg. It can reach a maximum weight of 47 kg for a height of 1.5 m. The current size of the salmon is 50 to 70 cm, with a weight of 2.3 to 9.1 kg. Spawning season is in October-November. Fertility is 1,500 and 1,800 eggs per kg of weight. It is fished in March in October. Salmon have a hydrodynamic and powerful body. The caudal peduncle is elongated and narrower than in trout, with which salmon share many characteristics. The mouth does not extend beyond the plumbing of the posterior edge of the eye. Adults have sexual dimorphism in the muzzle. Females have a rounded snout, while males have an elongated snout and their jaws bend sharply as they age, giving them the name of becard. The caudal fin is fairly indented, with a concave posterior edge and well defined tips. The adipose fin characteristic of Salmonids is present in salmon. The livery is different depending on the reproductive stage of the individual. The parr have 8 to 11 dark-colored vertical bars on the sides. The smolt and the adult have a silvery livery with black cross-shaped punctuation above the lateral line. At the time of reproduction, the male is adorned with bright colors.

Fishing period : from March to October

Minimum size : 50 cm

Difficulty :

N°3 | The Sunbleak fish

The Sunbleak fish belongs to the Cyprinidae family. The usual size of sunbleak is 4 to 6 cm for a weight of about ten grams. The largest individuals can reach 9 cm. Its lifespan is about 2 years. It breeds between May and July. It is prohibited to fish for the sunbleak in white water from October to March, but in mixed and calm waters it can be fished all year round. The Sunbleak has a tapered, laterally compressed body, like the common bleak with which it is often confused. However, its body is more robust and less high than that of the latter. Its head is small with eyes that are excessively large in relation to the size of the head. Its lower jaw is longer than its upper jaw, giving its mouth a forward and upward orientation, indicating a fish that feeds preferentially on the surface. The caudal fin of sunbleak is particularly indented, its dorsal fin fits well behind the pelvic fin insertions. The sunbleak has an olive-brown back, bluishly reflective sides and a silvery belly. Its fins are light grey.

Fishing period : From April to September in the white water and all

Minimum size : no restriction

Difficulty :

N°4 | The Crucian Carp

The Crucian Carp belongs to the Cyprinidae family. Its average size is 45 cm for 3 kg. It can live up to 15 years. It breeds from Mai to June. The female lays up to 300,000 oocytes. It can be fished from spring to fall. The Crucian carp is ovoid, stocky and laterally compressed. The protruding back gives it a high body. The most common specimens have an average size of 15 cm and a weight of about 250 g, but they can reach more than 50 cm and a weight of 4 kg. The head, small and conical, has no barbels. The pectoral and ventral fins and the anus are slightly rounded and have a reddish colour. The dorsal fin is characterized by a convex line. Finally, the caudal is slightly indented, and has 20 soft rays. Large scales cover the body and 31 to 36 scales run along the lateral line. Overall, it is greenish in color, dark on the back, with golden reflections on the sides and lighter on the belly. A black spot at the base of the caudal fin characterizes juveniles of this species. This stain disappears with age.

Fishing period : Spring to fall

Minimum size : 30 cm

Difficulty :

N°5 | The Stone Loach

The Stone Loach belongs to the Balitoridae family. The current size of the Stone loach is about 10-12 cm and maximum 20 cm. Its longevity is 5 to 6 years. The breeding period takes place between April and July. Fertility is 50,000 to 80,000 eggs. Fishing is allowed from June to March. The stone loach has an elongated body, subcylindrical in its front part and covered with tiny scales. The head is broad and flattened. The mouth is equipped with three pairs of barbells on the upper lip. She does not have an erectile spine under her eye. The caudal fin is slightly indented, almost straight and punctuated with black. The back is brownish in color, the flanks are yellowish and the belly is clear. A dark band is present at the base of the caudal fin.

Fishing period : All year

Minimum size : no restriction

Difficulty :

N°6 | The Wels Catfish

The Wels Catfish belongs to the Siluridae family. The usual size is 1 m for 10 kg but it can reach a maximum of about 5 m for a weight of about 300 kg. The maximum observed longevity is 60 years. It breeds from May to June. The female lays 20,000 to 30,000 eggs per kg of weight. It can be fished all year round. This massive species has a flat, broad head with small eyes and three pairs of barbells. Two pairs not movable on the lower jaw, one longer and movable on the upper jaw. The trunk represents about 1/3 of the animal and has the paired radiated fins and a small rudimentary dorsal fin. The belly is lighter. The posterior part of the body is laterally flattened and has a long anal fin. The tail ends in a homoceric fan-shaped caudal fin. The livery is variable and fluctuates from olive green to grey, both plain and with light spots. The skin is viscous and flake-free. The wels catfish has many small teeth.

Fishing period : All year

Minimum size : no restriction

Difficulty :

N°7 | The Spined Loach

The Spined loach belongs to the Cobitidae family. The Spined Loach has a size of 6 to 12 cm. it can live up to 10 years. The breeding period runs from April to July. The female can lay up to 1500 eggs. It can be fished all year round. Its elongated, ribbon-shaped body is covered with very small scales. Variable in color, light brown to dark brown, its flanks are marked with dark spots aligned longitudinally (the points in the lower row are larger). His belly is very clear and almost white. The head is narrow. The inferior mouth (in the ventral position) is surrounded by six small barbells (4 on the upper jaw and 2 at the corner of the lips). Under each eye, there is a small moving spine that is very inconspicuous (it can be detected mainly by touch). The caudal fin has a black spot growing at its birth and is then marked with four lines of dark dots. The pectoral fins are long. If you have good eyes, you can tell the male from the female by the longer and thicker pectoral fins.

Fishing period : All year

Minimum size : 8 cm

Difficulty :

N°8 | The Strerlet fish

The Sterlet fish belongs to the Acipenseridae family. The Sterlet fish measures about 3.50m in length and weighs 300kg. It can live a hundred years. Females lay more than 800,000 eggs on the gravel. Spawning season is around May to June. It can be fished all year round. The back and sides are grey to beige, the ventral and lateral parts are lighter (almost white). Five longitudinal rows of large bone plates are arranged along the body. The upper lobe of the caudal fin is more developed than the lower lobe. The muzzle is narrow, pointed and raised upwards with four long fringed barbells. The lower lip is notched in the middle. The Sterlet fish has a protractile mouth placed on the underside of the head.

Fishing period : All year

Minimum size : 1,80 m

Difficulty :

N°9 | The Ghost Carp

The Ghost Carp belongs to the Cyprinidae Family. With a life expectancy ranging from 40 to 50 years on average, it can reach up to 80 cm long. The breeding period is short, from May to June. The female lays 100,000 eggs per kg of weight. It can be fished all year. From its transition from young to adult fish, many physical characteristics will change. Its scales change color over time, as does its size. Many people tend to confuse a young ghost carp with a goldfish because of its physical appearance and colors. However, the two species are distinguishable: the ghost carp has a flat belly while the goldfish has a more swollen belly. In addition, towards her lips we notice barbells similar to two small moustaches in the ghost carp.

Fishing period : All year

Minimum size : 45 cm

Difficulty :

N°10 | The Roach fish

The Roach fish belongs to the Cyprinidae Family. The current size is 10 to 30 cm and the weight is 10 to 200 g. Some individuals can reach 50 cm for a weight of 2 kg. Life expectancy is about ten years (maximum 14 years). The breeding of the roach takes place from April to June/July. Fertility is 350000 eggs per kg of weight. It can be fished all year round. Roach is one of the most common and widespread fish in slow-moving lakes and rivers. It lives in schools of individuals of approximately the same size. These benches can be composed of hundreds of roaches. It is easily identifiable by the diver: the silvery appearance of his body, the eyes and red fins allow him to identify roaches and rotengles. A closer look at the position of the dorsal and ventral fins will then make the difference between the two species. If these two fins are upright, it is the roach.

Fishing period : All year

Minimum size : x

Difficulty :

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The fishing forecast allows you to forecast your fishing trips and always go at the right time to the right place!

How it works

This is a score of 1 to 10 calculated city by city according to some forty criteria affecting fishing: moon, weather conditions, atmospheric pressure, sunrise / sunset. sun, tides, swell etc .