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Dobbs Weir
Dobbs Weir is both a weir in Hoddesdon, Hertfordshire and an area of Roydon, Essex in England on the River Lea. It is well known for angling, outdoor beauty and watersports. It is overlooked by the ''Fish and Eels'' pub. Angling The weir is a popular fishery. In 2003, the then record Chub weighing 8.8 pounds was caught by Tim Archer. The fishery is owned by the Lee Valley Regional Park Authority and is currently (2013) controlled by the partnership of Ware Angling Club and Hertford Angling Club forming a part of the Towpath Fishery. Day tickets are available on the bank. Season tickets are available by joining one of the controlling clubs. Watersports Dobbs Weir has had a long history serving the watersports community, as the sluice gates after the v-drops could be changed according to the flow of the water. Especially in winter months after heavy rain the weir could be changed into a formidable feature used for whitewater training or playboating. Repair Since Aug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish And Eels
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Chub
''Squalius cephalus'' is a European species of freshwater fish in the carp family Cyprinidae. It frequents both slow and moderate rivers, as well as canals and still waters of various kinds. This species is referred to as the common chub, European chub, or simply chub. Description It is a stocky fish with a large rounded head. Its body is long and cylindrical in shape and is covered in large greenish-brown scales which are edged with narrow bands of black across the back, paling to golden on the flanks and even paler on the belly. The tail is dark brown or black, the dorsal fin is a greyish-green in colour and all the other fins are orange-red. The dorsal fin has 3 spines and 7-9 soft rays while the anal fin has 3 spines and 7-10 rays. The vertebrae count is 42-48. It can grow to 60 cm standard length but most fish are around 30 cm. Distribution The chub is distributed throughout most of northern Eurasia, it can be found in the rivers flowing into the North, Baltic, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributary
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean. The Irtysh is a chief tributary of the Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. PhysicalGeography.net, Michael Pidwir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Thames
The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn. The river rises at Thames Head in Gloucestershire, and flows into the North Sea near Tilbury, Essex and Gravesend, Kent, via the Thames Estuary. From the west it flows through Oxford (where it is sometimes called the Isis), Reading, Henley-on-Thames and Windsor. The Thames also drains the whole of Greater London. In August 2022, the source of the river moved five miles to beyond Somerford Keynes due to the heatwave in July 2022. The lower reaches of the river are called the Tideway, derived from its long tidal reach up to Teddington Lock. Its tidal section includes most of its London stretch and has a rise and fall of . From Oxford to the Estuary the Thames drops by 55 metres. Running through some of the drier parts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Waterways
British Waterways, often shortened to BW, was a statutory corporation wholly owned by the government of the United Kingdom. It served as the navigation authority for the majority of canals and a number of rivers and docks in England, Scotland and Wales. On 2 July 2012, all of British Waterways' assets and responsibilities in England and Wales were transferred to the newly founded charity the Canal & River Trust. In Scotland, British Waterways continues to operate as a standalone public corporation under the trading name Scottish Canals. The British Waterways Board was initially established as a result of the Transport Act 1962 and took control of the inland waterways assets of the British Transport Commission in 1963. By the final years of its existence, British Waterways was sponsored by the Department for Environment, Food and Rural Affairs (DEFRA) in England and Wales, and by the Scottish Government in Scotland. British Waterways managed and maintained of canals, riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Playboating
Canoe freestyle (also known as playboating) is a discipline of whitewater kayaking or canoeing where people perform various technical moves in one place (a playspot), as opposed to downriver whitewater canoeing or kayaking where the objective is to travel the length of a section of river (although whitewater paddlers will often stop and play en route). Specialised canoes or kayaks (boats) known as playboats are often used, but any boat can be used for playing. The moves and tricks are often similar to those performed by snowboarders, surfers or skaters, where the athlete completes spins, flips, turns, etc. With modern playboats it is possible to get the kayak and the paddler completely airborne while performing tricks. The competitive side of playboating is known as freestyle kayaking (formerly called rodeo). Playspots Playspots are typically stationary features on rivers, in particular standing waves (which may be breaking or partially breaking), hydraulic jumps, 'holes' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater
Whitewater forms in a rapid context, in particular, when a river's gradient changes enough to generate so much turbulence that air is trapped within the water. This forms an unstable current that froths, making the water appear opaque and white. The term "whitewater" also has a broader meaning, applying to any river or creek that has a significant number of rapids. The term is also used as an adjective describing boating on such rivers, such as whitewater canoeing or whitewater kayaking. Fast rivers Four factors, separately or in combination, can create rapids: gradient, constriction, obstruction, and flow rate. Gradient, constriction, and obstruction are streambed topography factors and are relatively consistent. Flow rate is dependent upon both seasonal variation in precipitation and snowmelt and upon release rates of upstream dams. Streambed topography Streambed topography is the primary factor in creating rapids, and is generally consistent over time. Increase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sluice
Sluice ( ) is a word for a channel controlled at its head by a movable gate which is called a sluice gate. A sluice gate is traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway and can be considered as a bottom opening in a wall. Sluice gates are one of the most common hydraulic structures in controlling flow rate and water level in open channels such as rivers and canals. They also could be used to measure the flow. A water channel containing a sluice gate forms a type of lock to manage the water flow and water level. It can also be an open channel which processes material, such as a River Sluice used in gold prospecting or fossicking. A mill race, leet, flume, penstock or lade is a sluice channeling water toward a water mill. The terms sluice, sluice gate, knife gate, and slide gate are used interchangeably in the water and wastewater control industry. They are also used in wastewater treatment plants and to recover minerals i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lee Valley Regional Park Authority
Lee Valley Regional Park Authority (LVRPA) is a statutory body that is responsible for managing and developing the long, Lee Valley Regional Park. The park was established by Parliament of the United Kingdom in 1967. The headquarters of the authority are in Myddelton House, Bulls Cross in the London Borough of Enfield, well known in the horticultural world for the gardens developed by E.A. Bowles (1865–1954) and still fully maintained and open to the public. History The idea for a regional park was first suggested by Sir Patrick Abercrombie in his Greater London Plan of 1944. However, the plan remained dormant till 1961, when Lou Sherman, Mayor of Hackney took up the challenge to regenerate the Lea Valley. He persuaded 17 other local authorities to support him. In 1963 the Civic Trust was invited to make an appraisal of the Valley's resources, their report was positive. A bill was put to Parliament to establish the Lee Valley Regional Park Authority. Following Roy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pound (mass)
The pound or pound-mass is a unit of mass used in British imperial and United States customary systems of measurement. Various definitions have been used; the most common today is the international avoirdupois pound, which is legally defined as exactly , and which is divided into 16 avoirdupois ounces. The international standard symbol for the avoirdupois pound is lb; an alternative symbol is lbm (for most pound definitions), # ( chiefly in the U.S.), and or ″̶ (specifically for the apothecaries' pound). The unit is descended from the Roman (hence the abbreviation "lb"). The English word ''pound'' is cognate with, among others, German , Dutch , and Swedish . These units are historic and are no longer used (replaced by the metric system). Usage of the unqualified term ''pound'' reflects the historical conflation of mass and weight. This accounts for the modern distinguishing terms ''pound-mass'' and '' pound-force''. Etymology The word 'pound' and its cognates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Sport (recreation)
Water sports or aquatic sports are sport activities conducted on waterbodies, and can be categorized according to the degree of immersion by the participants. On the water * Boat racing, the use of powerboats to participate in races * Boating, the use of boats for personal recreation * Cable skiing, similar to wake boarding but with cables for artificial maneuvering * Canoe polo combines boating and ball handling skills with a contact team game, where tactics and positional play are as important as the speed and fitness of the individual athletes. * Canoeing is an activity which involves paddling a canoe with a single-bladed paddle. Most present-day canoeing is done as or as a part of a sport or recreational activity. * Dragon boat racing, teams of 20 paddlers racing the ancient dragon boat * Fishing, the recreation and sport of catching fish * Flyboard, a brand of hydroflighting device which supplies propulsion to drive the Flyboard into the air to perform a sport known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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