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Discover everything to fish in Castle Bolton

Find the best moment to go fishing in Castle Bolton, 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 Spined Stickleback

The Spined Stickleback belongs to the Gasterosteidae family. Females are larger than males, measuring 4 to 5 cm and males 3.5 to 4 cm. Its longevity varies from 3 to 5 years. The spined stickleback breeds from March to July to June depending on the region. Fertility is 100 to 400 eggs. It can be fished all year round. The spined stickleback is a small fish whose body is elongated and laterally compressed. Along the lateral line, the body is not covered with scales but with bone plates (badges). The caudal peduncle is very narrow. Three isolated spines are present on the back in front of the dorsal fin. The muzzle is pointed and has a terminal mouth. Pelvic fins are also replaced by two thorns. Its back is greenish brown with black on the back, the sides are silvery grey below the lateral line and the ventral side is whitish. The male's silvery coat turns a bright red color at the time of reproduction.

Fishing period : All year

Minimum size : 4 cm

Difficulty :

N°2 | The Bullhead fish

The Bullhead fish belongs to the Ictaluridae family. This species generally measures 15 to 20 cm, but can reach a maximum of 45 cm for a weight of 2 kg. It can live up to 6 years. It breeds in May-June and lays up to 5000 eggs. It can be fished all year. It is a scaleless fish with bare, viscous skin. Its naked body is elongated and has thousands of sensory cells (electro-receptor cells) that are a particular feature of the species. He has a large flattened head, a very wide mouth with large lips and 8 barbels, 6 of which hang, and 2 are located behind the nostrils. Its pectoral fins have sharp spines that are dangerous. Similarly, its first dorsal fin has a sharp sting. It also has a short fat fin (between the dorsal and caudal fins). Its brown back is almost black or greenish brown, its sides lighter, its belly yellowish white.

Fishing period : All year

Minimum size : 20 cm

Difficulty :

N°3 | The Eel fish

The Eel fish belongs to the Anguillidae family. The eel can measure up to 1.50 m in length for 4 kg, but the average size is between 40 and 60 cm. They can live up to 50 years old. They reproduce in March. They can be fished from April to September. The eel is a species of snake fish, hence its Latin name "anguis" which means snake. Its anterior part is circular while the caudal section is flattened. Its body is covered with smooth skin and enriched with mucus. The scales only appear late. The eyes of an eel are round. It has a terminal mouth with a prominent jaw. Without pelvic fins, the eel has only small pectoral fins and long dorsal, anal and caudal fins. These meet at the level of the tail.

Fishing period : April to September

Minimum size : 50 cm

Difficulty :

N°4 | Brown Trout

The Brown Trout belongs to the Salmonidae family. According to the location, the adult size varies from 25 cm to 80 cm for 300 to 800 g. It lives for 3 to 6 years. The spawning period starts in October and end in January. The female can lay up to 4000 eggs. The fishing period is open from the second Saturday of March until the third Sunday of September. This fish is not hard to catch but the fishing needs complex skills. Depending on its environment, the brown trout have a very variable color, but the brown trout, as its name shows, is rather brown with scattered black and red spots, depending on the spawners. It has a certain mimicry according to the bottom of its living spaces since the dominant brown will become a green dress if it lives close to the banks where yellow and even sometimes silvery white will mix. It has a "useless" adipose fin between the dorsal fin and the caudal fin. The head is tapered, strong and has a powerful jaw. Its back is a pretty black or night blue.

Fishing period : March to September

Minimum size : no restriction

Difficulty :

N°5 | The Gwyniad fish

The Gwyniad fish belongs to the Salmonidae family. It is a fairly large species: 40 to 60 cm. It reaches 70 cm for 10 kg in the large lakes of northern Europe. Life expectancy would be about ten years. Its breeding period extends quite widely between 15 November and 31 January with a maximum activity between 10 December and 1 January. The female lays 30,000 eggs per kg of weight. This fish is on the IUCN Red List. Fishing is therefore prohibited. It has the fat fin characteristic of Salmonidae. It has an elongated body, silvery grey, bluish grey, with a more or less brownish back and fairly large scales. The caudal fin is very indented. The mouth is small. Two details that differentiate it from other salmonids. The number of gillospines (here 15 to 70) confirms that they belong to that species. The male has prominent scales on the lateral line, rough to the touch.

Fishing period :

Minimum size :

Difficulty :

N°6 | The Rudd fish

The Rudd fish belongs to the Cyprinidae family. The current size of the rudd fish is 15 to 30 cm for a weight of 0.5 to 1 kg. It can reach nearly 51 cm in height and weigh 2 kg. The rudd fish can live about 17 years. Egg laying is split and takes place from April to June. The female lays 100,000 to 200,000 eggs. Fishing for rudd is allowed all year round. It is easily identifiable by the diver: the silvery appearance of its body. A closer look at the position of the dorsal and ventral fins will then make the difference between the two species. If the ventral fins are placed further forward than the dorsal fin, it is the ratchet. The mouth, small, terminal, opens obliquely upwards. The back of the rattlesnake is brownish green, the sides and belly are silvery. The iris of the eyes is yellow with golden reflections. Dorsal, anal and pelvic fins are bright red in color.

Fishing period : All year

Minimum size : 15 cm

Difficulty :

N°7 | The Bronze Bream

The Bronze bream belongs to the Cyprinidae Family. The current catch size varies between 30 and 50 cm, for a weight of 0.5 and 2.5 kg. Some individuals can reach a maximum height of 80 cm for a weight of 7 kg. It lives between 20 and 25 years. It reproduces between April and June and lay 100,000 to 300,000 eggs. The Bronze Bream can be fished all year round in 2nd category streams and is not hard to catch with the right bait. In Europe, there are 2 or 3 types of bream, 5 species and 2 subspecies. The Bronze bream has a very high and strong body flattened laterally. The bushy back, especially in older individuals, is characteristic of this fish. Its body is covered with large scales and mucus. The Bronze bream has a fairly small eye compared to the size of the muzzle. The mouth is small, oblique, barbless and protractile. The upper jaw protrudes beyond the lower jaw. Teeth are subject to seasonal replacement. The anal fin is very long and has 23-30 soft rays. On the other hand, the dorsal fin is short and inserted behind the pelvic fins. The caudal fin is very indented with the lower lobe longer than the upper lobe.

Fishing period : All year

Minimum size : 30 cm

Difficulty :

N°8 | The Burbot

The Burbot fish belongs to the Lotidae family. The burbot can measure 30 to 120 cm and weigh up to 3 kg. It can live from 15 to 20 years. It breeds from December to March and can lay up to one million eggs. It can be fished all year round. The body is cylindrical, elongated, slightly compressed towards the tail, covered with small scales covered with a thick layer of mucus. The back is greenish brown or yellowish with darker mottling, with a gradation becoming lighter on the sides. The belly is yellowish white. The short, rounded pectoral fins, close to the head, overhang the ventral side with their first very elongated radius. The first dorsal fin is short, the second, very long, continues until the birth of the caudal, which is rounded. The lower jaw has a single long barbel and the nostrils have two fairly distant orifices, each with a small barbel. The mouth is wide, with many fine teeth.

Fishing period : All year

Minimum size : 50 cm

Difficulty :

N°9 | 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°10 | Bitterling Fish

The Bitterling fish is a freshwater fish and belongs to the Cyprinidae family. Its scientific name is Rhodeus Amarus. The current size of the bitterling fish is 5-6 cm. Some individuals can reach a maximum height of 11 cm and a weight of 10 g. This species is one of the smallest Cyprinid in Europe. It lives on average from 2 to 3 years. The spawning period is between April and June. It lays 40 to 100 oocytes. This fish is easy to catch due to its small size. The bitterling is a small fish whose body is high and laterally compressed. The lateral line is short or incomplete. The scales on the back have a grey-green coloring. The sides are clear with silvery reflections. During the breeding period the silver coloration changes to a pink to bright red color with a dark blue sideband. Sexual dimorphism occurs between the male and female during reproduction. A 5 to 8 mm laying tube (ovipositor) develops in the female, which allows her to lay her eggs in the gill cavity of freshwater mussels. The male has a higher body than the female and its colors become brighter during the breeding season. The bitterling fish's eyes are quite large. Its mouth is small, oblique and the upper jaw protrudes beyond the lower jaw. The anal and dorsal fins have a short base and 8 to 10 branched rays.

Fishing period : prohibited all year

Minimum size : not available

Difficulty :

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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 .