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Ōmura Bay
is a bay of the East China Sea in the centre of Nagasaki Prefecture, Japan. Geography The bay measures about north-to-south and east-to-west. The length of the shoreline is about and the surface area is about . This corresponds with about 8% of the total area of the prefecture. Compared to its size, the bay is relatively shallow with an average depth of and maximum depth. The bay is surrounded by land in all directions, thus it appears as an inland sea on maps. The only two connections to the East China Sea are in the north-west: the with a minimum width of and – more eastward – the with a width of . However, these two straits do not directly lead to the open sea, but to the . In between the Hario and Haiki Straits lies Hario Island. West of the Ōmura Bay lies the , and to the south is the foot of . On the eastern shore of the bay is the , on which the city of Ōmura is located. Opposite Ōmura city lies the largest island of the bay: Mishima (箕島), where N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landsat
The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth. It is a joint NASA / USGS program. On 23 July 1972, the Earth Resources Technology Satellite was launched. This was eventually renamed to Landsat 1 in 1975. The most recent, Landsat 9, was launched on 27 September 2021. The instruments on the Landsat satellites have acquired millions of images. The images, archived in the United States and at Landsat receiving stations around the world, are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance and education, and can be viewed through the U.S. Geological Survey (USGS) "EarthExplorer" website. Landsat 7 data has eight spectral bands with spatial resolutions ranging from ; the temporal resolution is 16 days. Landsat images are usually divided into scenes for easy downloading. Each Landsat scene is about 115 miles long and 115 miles wide (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isahaya, Nagasaki
is a Cities of Japan, city located in Nagasaki Prefecture, Japan. The city was founded on September 1, 1940. As of November 1, 2022, the city has an estimated population of 132,385 and a population density of 389 persons per km². The total area is . On March 1, 2005, the towns of Tarami, Nagasaki, Tarami, Moriyama, Nagasaki, Moriyama, Iimori, Nagasaki, Iimori, Takaki, Nagasaki, Takaki and Konagai, Nagasaki, Konagai (all from Kitatakaki District, Nagasaki, Kitatakaki District) were merged to create the new and expanded city of Isahaya. The city was once part of Kitatakaki District, but due to this merger, the district has no more municipalities left and the district was officially dissolved. History In July 1957, a severe downpour within Nagasaki caused a large flood in Isahaya, with over 500 casualties and 3500 injuries reported in Isahaya alone. Geography Located in the central part of Nagasaki Prefecture. To the north of Isahaya City are mountainous lands of the Takayam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tachypleus Tridentatus
''Tachypleus tridentatus'', commonly known as the Chinese horseshoe crab, Japanese horseshoe crab, or tri-spine horseshoe crab, is a species of horseshoe crab found in Southeast and East Asia, with records from China, Indonesia, Japan, South Korea, Malaysia, the Philippines, Taiwan, and Vietnam. It is found in coastal Marine life, marine and brackish waters, and tolerates colder temperatures than the other Asian horseshoe crabs (''Tachypleus gigas'' and ''Carcinoscorpius rotundicauda''), although juveniles still need water warmer than to moult. Description Horseshoe crabs are not crabs at all, but are most closely related to spiders and scorpions, and may even be arachnids themselves. The cephalothorax is protected by this single large, horseshoe-shaped plate, and neither it nor the abdomen is visibly segmented. The tail bears a long spike, known as the telson. Like other horseshoe crabs, the carapace of ''T. tridentatus'' consists of a larger frontal one (the prosoma) and a sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horseshoe Crab
Horseshoe crabs are marine and brackish water arthropods of the family Limulidae and the only living members of the order Xiphosura. Despite their name, they are not true crabs or crustaceans: they are chelicerates, most closely related to arachnids, such as spiders and scorpions. Horseshoe crabs live primarily in and around shallow coastal waters on soft, sandy or muddy bottoms. They are generally found in the intertidal zone at spring high tides. They are eaten in some parts of Asia, and used as fishing bait, in fertilizer and in science (especially ''Limulus'' amebocyte lysate). In recent years, population declines have occurred as a consequence of coastal habitat destruction and overharvesting. Tetrodotoxin may be present in one horseshoe crab species, '' Carcinoscorpius rotundicauda''. Fossil records for horseshoe crabs extend back as far as 480 million years ago, with extant forms being living fossils. A 2019 molecular analysis places them as the sister group of Ricinule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is an extant taxon that cosmetically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living fossils commonly are of species-poor lineages, but they need not be. While the body plan of a living fossil remains superficially similar, it is never the same species as the remote relatives it resembles, because genetic drift would inevitably change its chromosomal structure. Living fossils exhibit stasis (also called "bradytely") over geologically long time scales. Popular literature may wrongly claim that a "living fossil" has undergone no significant evolution since fossil times, with practically no molecular evolution or morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living fossils are mistakenly declared as an absence of evolution, but they are examples of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Dolphin
The common dolphin (''Delphinus delphis'') is the most abundant cetacean in the world, with a global population of about six million. Despite this fact and its vernacular name, the common dolphin is not thought of as the archetypal dolphin, with that distinction belonging to the bottlenose dolphin due to its popular appearances in aquaria and the media. However, the common dolphin is often depicted in Ancient Greek and Roman art and culture, most notably in a mural painted by the Greek Minoan civilization. It is presently the only member of the genus ''Delphinus''. The common dolphin belongs to the subfamily Delphininae, making this dolphin closely related to the three different species of bottlenose dolphins, humpback dolphins, striped dolphins, spinner dolphins, clymene dolphin, spotted dolphins, fraser's dolphin and the tucuxi and guiana dolphin. The common dolphin was originally categorized into two different species (now thought to be ecotypes), the short-beaked common dolp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indo-Pacific Bottlenose Dolphin
The Indo-Pacific bottlenose dolphin (''Tursiops aduncus'') is a species of bottlenose dolphin. This dolphin grows to long, and weighs up to . It lives in the waters around India, northern Australia, South China, the Red Sea, and the eastern coast of Africa. Its back is dark grey and its belly is lighter grey or nearly white with grey spots. The Indo-Pacific bottlenose dolphin is generally smaller than the common bottlenose dolphin, has a proportionately longer rostrum, and has spots on its belly and lower sides. It also has more teeth than the common bottlenose dolphin — 23 to 29 teeth on each side of each jaw compared to 21 to 24 for the common bottlenose dolphin. Much of the old scientific data in the field combine data about the Indo-Pacific bottlenose dolphin and the common bottlenose dolphin into a single group, making it effectively useless in determining the structural differences between the two species. The IUCN lists the Indo-Pacific bottlenose dolphin as "nea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finless Porpoise
''Neophocaena'' is a genus of porpoise native to the Indian and Pacific oceans, as well as the freshwater habitats of the Yangtze River basin in China. They are commonly known as finless porpoises. Genetic studies indicate that ''Neophocaena'' is the most basal living member of the porpoise family. There are three species in this genus: Description The finless porpoises are the only porpoises to lack a true dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through conv .... Instead there is a low ridge covered in thick skin bearing several lines of tiny tubercles. In addition, the forehead is unusually steep compared with those of other porpoises. With fifteen to twenty-one teeth in each jaw, they also have, on average, fewer teeth than other porpoises, although there is some over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saikai, Nagasaki
is a Cities of Japan, city located in Nagasaki Prefecture, Japan. As of March 2017, the city has an estimated population of 28,815 and a population density of 4,700 persons per km2. The total area is 242.01 km2. The modern city of Saikai was established on April 1, 2005, from the merger of five towns on the northern tip of Nishisonogi Peninsula: the former town of Saikai, Oseto, Nagasaki, Ōseto, Ōshima, Nagasaki (Nishisonogi), Ōshima, Sakito, Nagasaki, Sakito and Seihi, Nagasaki, Seihi (all from Nishisonogi District, Nagasaki, Nishisonogi District). Its city hall is the former town hall of Ōseto. The economy of the towns in this area were dominated by fishing and Japanese whaling, whaling in the Edo period, and coal mining in the Meiji period. The area is now primarily agricultural, with forestry products and tourism also of importance. However, on Oshima island, north of Saikai and close to Sasebo, a large shipyard is active building bulk ships and metal structures, i. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Togitsu, Nagasaki
is a town located in Nishisonogi District, Nagasaki Prefecture, Japan. As of March 31, 2017, the town has an estimated population of 30,084 and a density of 1,500 persons per km². The total area is 20.73 km². Neighbouring the town of Nagayo, Togitsu is notable for having a wide variety of retail stores and serves as a regional shopping centre for the Nishisonogi district of Nagasaki prefecture. Geography Surrounding municipalities * Nagasaki * Nagayo Education Togitsu has a high school, the Seiun Gakuen Junior and Senior High School, three junior high schools (including Seiun) and four primary schools. Transportation Togitsu does not have any train station nor any railway, with the closest ones being either Michinoo Station in Nagasaki or Nagayo Station in neighbouring Nagayo. It is served by a local bus system that goes within Togitsu and to Nagasaki City, Nagasaki Airport is an international airport located west of the railway station in the ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagayo, Nagasaki
is a town located in Nishisonogi District, Nagasaki Prefecture, Japan. Geography Nagayo is located within the southern part of Nagasaki prefecture and resides at the south of Ōmura Bay. Neighbouring municipalities * Nagasaki * Isahaya * Togitsu History In the Edo period of the late 18th century, Nagayo ware became established and produced until the end of the 19th century. Demographics As of March 1, 2017, the town has an estimated population of 42,570 and a density of 1,500 persons per km². The total area is 28.81 km². Sister city Nagayo have a sister city relationship with the town of Wethersfield from Connecticut since 1999. Transportation Railway * JR Kyushu - Nagasaki Main Line (Branch Line) ** Honkawachi - Nagayo - Kōda - Michinoo Highway * Japan National Route 207 is a highway in Japan on the island of Kyūshū which runs from Saga City in Saga Prefecture to Togitsu in Nagasaki Prefecture. From Kōhoku it runs along the Ariak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
