The Bay of Biscay ("/, - /; "Spanish: Golfo de Vizcaya, "Breton: Pleg-mor Gwaskogn, "Basque: Bizkaiko Golkoa, "French: Golfe de Gascogne) is a "gulf of the northeast "Atlantic Ocean located south of the "Celtic Sea. It lies along the western coast of "France from "Point Penmarc'h to the "Spanish border, and the northern coast of Spain west to "Cape Ortegal.
The south area of the Bay of Biscay washes the northern coast of Spain and is known as the "Cantabrian Sea.
The average depth is 1,744 metres (5,722 ft) and the greatest depth is 4,735 metres (15,535 ft).
The Bay of Biscay is named (for English speakers) after "Biscay on the northern Spanish coast, probably standing for the "western Basque districts (Biscay up to the early 19th century). Its name in other languages is:
Parts of the "continental shelf extend far into the bay, resulting in fairly shallow waters in many areas and thus the rough seas for which the region is known. The Bay of Biscay is home to some of the "Atlantic Ocean's fiercest "weather. Large storms occur in the bay, especially during the winter months. Up until recent years it was a regular occurrence for merchant vessels to founder in Biscay storms.
The southernmost portion is the "Cantabrian Sea.
The main rivers that empty into the Bay of Biscay are "Loire, "Charente, "Garonne, "Dordogne, "Adour, "Nivelle, "Bidasoa, "Oiartzun, "Urumea, "Oria, "Urola, "Deba, Artibai, Lea, Oka, "Nervión, Agüera, "Asón, Miera, "Pas, "Saja, Nansa, "Deva, "Sella, "Nalón, Navia, "Esva, "Eo, Landro and "Sor.
In late spring and early summer a large fog triangle fills the southwestern half of the bay, covering just a few kilometres inland.
As winter begins, weather becomes severe. Depressions enter from the west very frequently and they either bounce north to the "British Isles or they enter the "Ebro Valley, dry out, and are finally reborn in the form of powerful thunderstorms as they reach the "Mediterranean Sea. These depressions cause severe weather at sea and bring light though very constant rain to its shores (known as "orballo, sirimiri, morrina, orbayu, orpin or calabobos). Sometimes powerful windstorms form if the pressure falls rapidly( Galernas), traveling along the "Gulf Stream at great speed, resembling a hurricane, and finally crashing in this bay with their maximum power, such as the "Klaus storm.["citation needed]
The southern end of the gulf is also called in Spanish "Mar Cantábrico" ("Cantabrian Sea), from the "Estaca de Bares, as far as the mouth of "Adour river, but this name is not generally used in English. It was named by Romans in the 1st century BC as Sinus Cantabrorum (Bay of the "Cantabri) and also, Mare Gallaecum (the Sea of the "Galicians). On some medieval maps, the Bay of Biscay is marked as El Mar del los Vascos (the Basque Sea).
The Bay of Biscay has been the site of many famous naval engagements over the centuries. In 1592 the Spanish defeated an English fleet during the eponymous "Battle of the Bay of Biscay. The "Biscay campaign of June 1795 consisted of a series of manoeuvres and two battles fought between the British "Channel Fleet and the French Atlantic Fleet off the southern coast of "Brittany during the second year of the "French Revolutionary Wars. The "USS Californian sank here after striking a "naval mine on June 22, 1918. In 1920 the "SS Afrique (1907) sank after losing power and drifting into a reef in a storm with the loss of 575 lives. On December 28, 1943, the "Battle of the Bay of Biscay was fought between "HMS Glasgow and "HMS Enterprise and a group of German destroyers as part of "Operation Stonewall during "World War II. "U-667 sank on 25 August 1944 in position , when she struck a mine. All hands were lost.
On April 12, 1970, Soviet submarine K-8 sank in the Bay of Biscay due to a fire that crippled the sub's nuclear reactors. An attempt to save the sub failed, resulting in the death of forty sailors and the loss of four nuclear torpedoes. Due to the great depth (15,000 feet), no salvage operation was attempted.
The car ferries from "Gijón to "Nantes/"Saint-Nazaire, "Portsmouth to "Bilbao and from "Plymouth, "Portsmouth and "Poole to "Santander provide one of the most convenient ways to see "cetaceans in "European waters. Often specialist groups take the ferries to hear more information.
Volunteers and employees of Biscay Dolphin Research regularly observe and monitor cetacean activity from the "bridge of the ships on the "P&O Ferries Portsmouth to Bilbao route. Many species of "whales and "dolphins can be seen in this area. Most importantly, it is one of the few places where the "beaked whales, such as the "Cuvier's beaked whale, have been observed relatively frequently. This is the best study area in the world for beaked whales.
"North Atlantic Right Whales, one of the most endangered whales, once came to the bay for feeding and probably for calving as well, but whaling activities by "Basques and others almost wiped them out sometime prior to 1850s. In modern days, the eastern population of this species are considered to be almost extinct, and there has been no record of right whales in the Bay of Biscay except for possible few sightings made in modern time, a pair which was possibly a mother-calf pair in 1977 at , and another pair in earlier June 1980 seen by merchantmen. Other records in the late 20th century include one off "Galicia at in September 1977 reported by a whaling company and another one seen off the Iberian Peninsula.
The best areas to see the larger cetaceans lie in the deep waters beyond the continental shelf, particularly over the Santander Canyon and Torrelavega Canyon in the south of the Bay.
The alga "Colpomenia peregrina was introduced and first noticed in 1906 by oyster fishermen in the Bay of Biscay.
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