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Ulban Bay
Ulban Bay (Russian: ''Ul'bansky Zaliv'') is a bay in the northwestern Sea of Okhotsk, just south of the Shantar Islands. It is a southern branch of Academy Bay to the north. The Syran and Ulban rivers flow into its head. Geography Ulban Bay is entered between Cape Ukurunru to the west and Cape Tukurgu to the east, which are separated by 43.4 km (about 27 mi). The bay itself is nearly 64 km (40 mi) deep in a southwesterly direction. Ice usually leaves Ulban Bay by mid- or late June, but in some years may remain until August. The bay has no safe anchorage and is exposed to northeast winds. Tides are semidiurnal. Springs rise 4.9 m (16 ft) in the northern part of the bay and 5.4 m (17.7 ft) in the southern part, while neaps rise about 3 m (9.8 ft). Tidal currents vary from one to two knots. The flood current generally sets to the southwest, while the ebb flows in the opposite direction.United States. (1918). ''Asiatic Pilot, Volume 1: East coast of Siberia, Sakhalin Island and Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shantar Islands
The Shantar Islands (russian: Шантарские острова, translit=Shantarskiye ostrova) are a group of fifteen islands located off the northwestern shore of the Sea of Okhotsk east of Uda Gulf and north of Academy Bay. Most of the islands have rugged cliffs, but they are of moderate height; the highest point in the island group is 720 metres. The name of the island group has its origins in the Nivkh language from the word ч’андь ''č’and’'' meaning "to be white". The islands are currently uninhabited. Geography The island group is administered by Russia as part of Khabarovsk Krai. Islands * Bolshoy Shantar Island. The largest island in the Shantar group, with an area of 1790 km2. It is about 72 km in length and 49 km in width. It has a large brackish lake (Lake Bol'shoe) in its northern end which is connected to the sea through a narrow passage. Smelts (''Hypomesus japonicus'' and '' olidus'') are found in this lake. *Feklistova Island, with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bays Of The Sea Of Okhotsk
A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean, a lake, or another bay. A large bay is usually called a gulf, sea, sound, or bight. A cove is a small, circular bay with a narrow entrance. A fjord is an elongated bay formed by glacial action. A bay can be the estuary of a river, such as the Chesapeake Bay, an estuary of the Susquehanna River. Bays may also be nested within each other; for example, James Bay is an arm of Hudson Bay in northeastern Canada. Some large bays, such as the Bay of Bengal and Hudson Bay, have varied marine geology. The land surrounding a bay often reduces the strength of winds and blocks waves. Bays may have as wide a variety of shoreline characteristics as other shorelines. In some cases, bays have beaches, which "are usually characterized by a steep upper foreshore with a broad, flat fronting terrace".Maurice Schwartz, ''Encyclopedia of Coastal Science'' (2006), p. 129. Bays were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Sandpiper
The wood sandpiper (''Tringa glareola'') is a small wader. This Eurasian species is the smallest of the shanks, which are mid-sized long-legged waders of the family Scolopacidae. The genus name ''Tringa'' is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek ''trungas'', a thrush-sized, white-rumped, tail-bobbing wading bird mentioned by Aristotle. The specific '' glareola'' is from Latin ''glarea'', " gravel". Description and systematics It resembles a longer-legged and more delicate green (''T. ochropus'') or solitary sandpiper (''T. solitaria'') with a short fine bill, brown back and longer yellowish legs. It differs from the first of those species in a smaller and less contrasting white rump patch, while the solitary sandpiper has no white rump patch at all. However, it is not very closely related to these two species. Rather, its closest relative is the common redshank (''T. totanus''), and these two share a sister relationshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Knot
__NOTOC__ The great knot (''Calidris tenuirostris'') is a small wader. It is the largest of the calidrid species. The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-coloured waterside birds. The specific '' tenuirostris '' is from Latin ''tenuis'' "slender" and ''rostrum'' "bill". Distribution Their breeding habitat is tundra in northeast Siberia. They nest on the ground laying about four eggs in a ground scrape. They are strongly migratory wintering on coasts in southern Asia through to Australia. This species forms enormous flocks in winter. The species is recorded in low numbers in western Alaska most years, and has occurred as a vagrant in British Columbia, Oregon, West Virginia, and Maine. Description The great knot is the largest species of '' Calidris'' sandpiper, with its sister species, the red knot, being the next largest. Adult great knots can measure , with a wingspan of , and weighing . This species has sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terek Sandpiper
The Terek sandpiper (''Xenus cinereus'') is a small migratory Palearctic wader species and is the only member of the genus ''Xenus''. It is named after the Terek River which flows into the west of the Caspian Sea, as it was first observed around this area. Taxonomy The Terek sandpiper was formally described and illustrated in 1775 by the German naturalist Johann Anton Güldenstädt under the binomial name ''Scolopax cinerea''. He reported that he had seen pairs breeding at the mouth of the Terek River where it flows into the Caspian Sea. It is now the only species placed in the genus ''Xenus'' that was introduced in 1829 by the German naturalist Johann Jakob Kaup. The genus name ''Xenus'' is from Ancient Greek ''xenos'' meaning "stranger"; the specific epithet ''cinereus'' is Latin for "ash-grey" from ''cinis, cineris'', "ashes". The species is considered to be monotypic, no subspecies are recognised. Among the Scolopacidae, ''Xenus'' is part of the shank- tattler-phalarop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wader
245px, A flock of Dunlins and Red knots">Red_knot.html" ;"title="Dunlins and Red knot">Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflats in order to foraging, forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans. The term "wader" is used in Europe, while "shorebird" is used in North America, where "wader" may be used instead to refer to long-legged wading birds such as storks and herons. There are about 210 species of wader, most of which live in wetland or coastal environments. Many species of Arctic and temperate regions are strongly migratory, but tropical birds are often resident, or move only in response to rainfall patterns. Some of the Arctic species, such as the little stint, are amongst the longest distance migrants, spending the non-breeding season in the southern hemisphere. Many of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Pacific Right Whale
The North Pacific right whale (''Eubalaena japonica'') is a very large, thickset baleen whale species that is extremely rare and endangered. The Northeast Pacific population, which summers in the southeastern Bering Sea and Gulf of Alaska, may have no more than 40 animals. A western population that summers near the Commander Islands, the coast of Kamchatka, along the Kuril Islands and in the Sea of Okhotsk is thought to number in the low hundreds. Before commercial whaling in the North Pacific (i.e. pre-1835) there were probably over 20,000 right whales in the region. The taking of right whales in commercial whaling has been prohibited by one or more international treaties since 1935. Nevertheless, between 1962 and 1968, illegal Soviet whaling killed at least 529 right whales in the Bering Sea and Gulf of Alaska as well as at least 132 right whales in the Sea of Okhotsk, plus an additional 104 North Pacific right whales from unspecified areas. The International Union for Cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beluga Whale
The beluga whale () (''Delphinapterus leucas'') is an Arctic and sub-Arctic cetacean. It is one of two members of the family Monodontidae, along with the narwhal, and the only member of the genus ''Delphinapterus''. It is also known as the white whale, as it is the only cetacean to regularly occur with this colour; the sea canary, due to its high-pitched calls; and the melonhead, though that more commonly refers to the melon-headed whale, which is an oceanic dolphin. The beluga is adapted to life in the Arctic, with anatomical and physiological characteristics that differentiate it from other cetaceans. Amongst these are its all-white colour and the absence of a dorsal fin, which allows it to swim under ice with ease. It possesses a distinctive protuberance at the front of its head which houses an echolocation organ called the melon, which in this species is large and deformable. The beluga's body size is between that of a dolphin and a true whale, with males growing up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mamga Bay
Mamga Bay (russian: Бухта Мамга, ''Bukhta Mamga'') is a bay in the Tuguro-Chumikansky District of Khabarovsk Krai, Russian Federation. Beluga whales are frequently seen in the bay.Solovyev, B. A., Shpak, O. V., Glazov, D. M., Rozhnov, V. V., & D. M. Kuznetsova. (2015). "Summer distribution of beluga whales (''Delphinapterus leucas'') in the Sea of Okhotsk". ''Russian J. Theriol.'' 14 (2): 201-215. Geography Mamga Bay is a small bay located on the northwestern side of Tugur Bay. It lies in the northwestern Sea of Okhotsk. The bay is open to the south and a small river, the Mamga, flows into it from the west. History New London and Hawaiian whaling schooners wintered in Mamga Bay from 1856 to 1862. They called it Caroline Harbor, after the schooner ''Caroline'' (106 tonsThrum, T. G. (1909). ''Hawaiian almanac and annual for 1910''. Honolulu, Black & Auld, Printers.), which was the first to winter there in 1856–1857. The four crew left with her all died of scurvy.''Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schooner
A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schooner also has a square topsail on the foremast, to which may be added a topgallant. Differing definitions leave uncertain whether the addition of a fore course would make such a vessel a brigantine. Many schooners are gaff-rigged, but other examples include Bermuda rig and the staysail schooner. The origins of schooner rigged vessels is obscure, but there is good evidence of them from the early 17th century in paintings by Dutch marine artists. The name "schooner" first appeared in eastern North America in the early 1700s. The name may be related to a Scots word meaning to skip over water, or to skip stones. The schooner rig was used in vessels with a wide range of purposes. On a fast hull, good ability to windward was useful for priva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
