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A bore in Morecambe Bay, in the United Kingdom Video of the Arnside Bore, in the United Kingdom The tidal bore in Upper Cook Inlet, in Alaska. A tidal bore, [1] often simply given as bore in context, is a tidal phenomenon in which the leading edge of the incoming tide forms a wave (or waves) of water that travels up a river or narrow bay, reversing the direction of the river or bay's current.
Notable tidal bores include those on the Petitcodiac, Maccan, St. Croix, and Kennetcook rivers. [7] Before the construction of a causeway in 1968 and subsequent siltation of the river, the Petitcodiac River had one of the world's largest tidal bores, up to two metres (6.6 ft) high. Since the opening of the causeway gates in 2010, the bore has ...
Saltstraumen is popular with anglers, due to its abundance of fish such as saithe, cod, wolffish, rose fish, and halibut. Coalfish is a specialty of the area. The largest documented coalfish of 22.7 kg (50 lb) was caught in Saltstraumen on a fishing rod. [9] Eiders are the only birds capable of diving for mussels in the strong stream. [10] [11]
Bore Park, located in the area formerly known as La Chapelle, [101] became a popular tourist location by 1907 for watching the Petitcodiac's tidal bore move up the river twice a day. [167] The area features information about the wave, as well as a clock indicating the time of its next appearance. [168]
Qiantang River Tidal Bore is an important scenic spot of Qiantang River. Generally, around August 15, Lunar Calendar is the best time to observe the tides. At that time, the largest Qiantang river tidal bore can be several meters.
The Dordogne is one of the few rivers in the world that exhibit the phenomenon of a tidal bore, known as a mascaret. [3] The upper valley of the Dordogne is a series of deep gorges. The cliffs, steep banks, fast flowing water and high bridges attract both walkers and drivers. In several places the river is dammed to form long, deep lakes.
Head of tide, tidal limit [2] or tidehead [3] is the furthest point upstream where a river is affected by tidal fluctuations, [4] or where the fluctuations are less than a certain amount. [5] The river section influenced by tides and marine forces, but without salinity is a tidal river. Downstream areas are brackish and termed estuaries. [6]
The mummichog is a common fish in coastal habitats such as salt marshes, muddy creeks, tidal channels, brackish estuaries, eelgrass or cordgrass beds, and sheltered shorelines. It can be found within coastal rivers but seldom beyond the head of tide .