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Find the best moment to go fishing in Ruislip Common, 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 Lesser Spotted Dogfish

The Lesser Spotted Dogfish belongs to the Scyliorhinidae. It has a height of about 80 cm in length and a maximum weight of 5 kg. It can live up to 8 years. It breeds from November to July. The female lays about a hundred eggs. It is fished in winter. The lesser spotted dogfish is a small spotted shark with a rounded snout. The spots are small, numerous, brown to blackish-brown on a light beige to red background, the belly remains light. Five gill slits are located just behind the black and oval eyes. As with all species of the Scyliorhinidae family, the first dorsal fin D1 is located behind the pelvic fins; the second dorsal fin D2 is located just behind the anal fin. The distance between the 2 dorsal fins D1 and D2 is greater than the length of the base of the anal fin. The nasal valves are contiguous.

Fishing period : in Winter

Minimum size : No restriction

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 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 :

N°4 | 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 :

N°5 | The Zander fish

The zander fish belongs to the Percidae family. The Zander is a fish that can reach a length of 100 cm (maximum 130 cm) for a weight of 20 kg and an age of about fifteen years (maximum 20 years). Spawning takes place between April and August. Fertility is high with nearly 200,000 eggs/kg of female. It is caught from May to December. Its body is slender and fusiform. The head is elongated. The back is greenish grey and has slight dark vertical stripes. It has no transverse stripes and the flank is clear. The belly is whitish except in the male during the breeding season when it is darker. No thorns on the gill cover. Its two dorsal fins are separated. The first is spotted and thorny. The caudal fin has 17 soft rays. Its mouth is armed with many teeth and large "canines" that are visible when the animal is motionless due to breathing movements.

Fishing period : From May to December

Minimum size : 50 cm

Difficulty :

N°6 | The Perch

The Perch fish belongs to the Percidae Family. Its size, on average 15 to 20 cm, can reach 60 cm for a weight of 4.5 kg. Life expectancy is about 6 years (maximum 22 years). The perch spawns in April and lays between 4000 and 300,000 eggs. It is caught from June to December. Its body is stocky, high, yellow-green with broad transverse stripes; the belly is yellowish to matt white. Its ventral, anal and caudal fins are red; the anterior dorsal fin has sharp rays and a black spot on the back. Its operculum is finished by a strong thorn.

Fishing period : It can be fished from June to December

Minimum size : 18 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 Largemouth black bass

The Largemouth Black bass belongs to the Centrarchidae family. It has an average size of 50 to 70 cm for 4 kg. Its longevity is about 15 years. Spawning occurs from late spring to mid-summer. The number of eggs varies according to the size of the female, from 2000 to 14000 eggs. It is caught from March to October. Large-mouth black bass is a moderately large and robust fish. Its head is strong. Its terminal mouth is large, broad and oblique. The lower jaw is slightly prominent while the upper jaw extends to the back of the eye. The two dorsal fins are almost entirely separated. The first dorsal fin is rather low and has 10 spines. The second dorsal fin with a rounded shape is higher and has an average of 12 rays. Pelvic fins are short, rounded and have 1 spine and 5 soft rays. The pectoral fins are rather short, broad, rounded at the tip and have 13 to 15 rays. The dorsal side of the body varies from bright green to olive. The sides are pale green or golden green. There is a wide, uniform black lateral band that sometimes extends over the operculum and eye to the muzzle. The sides of the head vary from green to olive. The caudal is devoid of bright colors. The ventral side varies from milk white to yellow.

Fishing period : March to October

Minimum size : 30 cm

Difficulty :

N°9 | The Vendace fish

The vendace fish belongs to the Salmonidae family. Its average size is 45 cm and its weight is 1 kg. The oldest specimens observed were 10 years old. It breeds from October to December. The female lays 30,000 eggs per kg of weight. It is fished from March to December. The vendace is a small, slender and streamlined fish that is very easy to confuse with a bleak, a small lavaret whitefish or a peled whitefish. Unlike the bleak, the vendace is a member of the Salmonidae family, which is why it has a fat fin. It differs from the lavaret and peled whitefish by its much longer lower jaw. In the lavaret whitefish, the upper jaw is longer and in the peled whitefish the jaws are of the same length. It is silvery on the sides, with a white belly and a brown-green, grey-blue or blue-green back.

Fishing period : from March to December

Minimum size : 30 cm

Difficulty :

N°10 | 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 :

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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 .