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Ōmura Bay
is a bay located in the center of Nagasaki Prefecture, Japan in the East China Sea. 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), ... [...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 ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isahaya, Nagasaki
is a city located in Nagasaki Prefecture, Japan. As of June 1, 2024, the city had an estimated population of 131,467 in 55169 households, and a population density of 380 people per km2. The total area of the city is Geography Located in the central part of Nagasaki Prefecture, Isahaya is surrounded by the ocean on three sides and the Tara mounts to the north. To the west is the base of the Nagasaki Peninsula and to the south is the base of Shimabara Peninsula. The city area faces Ōmura Bay in the northwest, Ariake Sea (Isahaya Bay) on the east and Tachibana Bay on the south. Major land reclamation projects have occurred which added plains to the Ariake Sea. The biggest is the Isahaya Bay reclamation project (諫早湾干拓事業) by the Ministry of Agriculture, Forestry and Fisheries that started in 1989. Embankments and sluice gates were built and a total of 35 km2 has been reclaimed as of 2018. File:諫早市の衛星写真（国土地理院）.png, Satellite photog ... [...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 arthropods of the family Limulidae and the only surviving xiphosurans. Despite their name, they are not true crabs or even crustaceans; they are chelicerates, more closely related to arachnids like spiders, ticks, and scorpions. The body of a horseshoe crab is divided into three main parts: the cephalothorax, abdomen, and telson. The largest of these, the cephalothorax, houses most of the animal's eyes, limbs, and internal organs. It is also where the animal gets its name, as its shape somewhat resembles that of a horseshoe. Horseshoe crabs have been described as "living fossils", having changed little since they first appeared in the Triassic. Only four species of horseshoe crab are extant today. Most are marine, though the mangrove horseshoe crab is often found in brackish water, and the Atlantic horseshoe crab is resident in brackish estuarine ecosystems such as the Delaware and Chesapeake bays. Additionally, certain extinct species transitioned t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is a Deprecation, deprecated term for an extant taxon that phenotypically 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 punctuated equilibrium, 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 Morphology (biology), morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living foss ... [...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 dolphin, striped dolphin, spinner dolphin, Clymene dolphin, spotted dolphin, Fraser's dolphin, the tucuxi and Guiana dolphin. The common dolphin was previously 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 (anatomy), 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 bottl ... [...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 China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after .... 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. 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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saikai, Nagasaki
270px, Saikai Bridge is a city located in Nagasaki Prefecture, Japan. Population , the city had an estimated population of 25,184 in 12447 households, and a population density of 100 people per km2. The total area of the city is . History Sakai is within ancient Hizen Province. The 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, Ōseto, Ōshima, Sakito and Seihi (all from Nishisonogi District). Its city hall is the former town hall of Ōseto. Geography Saikai is located on the northern tip of the Nishisonogi Peninsula, surrounded on three sides by the Goto Sea, Sasebo Bay, and Ōmura Bay, and islands scattered around the area. Most of the area has a ria coastline, with a complex, indented coastline. The highest peak on the peninsula is Mount Nagaura, 561 meters above sea level (the summit is in Nagasaki City). The area down to the coast is hilly and includes everg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Togitsu, Nagasaki
270px, Tsugiishi Bouzu rock in Togitsu is a town located in Nishisonogi District, Nagasaki Prefecture, Japan. , the town had an estimated population of 29,323 in 13601 households, and a population density of 1400 people per km2. The total area of the town is . Geography Togitsu is located on the southwestern shore of Ōmura Bay, in the southeastern part of the Nishisonogi Peninsula. It faces Ōmura Bay to the north, and borders Nagasaki City to the south and west, and Nagayo Town, Nishisonogi County to the east. The western part of the town is a mountainous area which forms the border with Nagasaki City, but there is a plain area in the east containing the main urban center. Furthermore, the area around Togitsu Port is mostly reclaimed land and is mainly used for industrial purposes. Surrounding municipalities Nagasaki Prefecture * Nagasaki * Nagayo Climate Togitsu has a humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nagayo, Nagasaki
270px, Nagayo Town Hall is a town located in Nishisonogi District, Nagasaki Prefecture, Japan. , the town had an estimated population of 39,548 in 17077 households, and a population density of 1400 people per km2. The total area of the town is . Geography Nagayo is located on the southern shore of Ōmura Bay in central Nagasaki Prefecture, and includes the uninhabited islands of Shimizu and Futatsujima. The Nagayo River flows through the center of the town, and there are many residential areas and fields in the river basin. The surrounding areas are hilly, and especially on the eastern side, there are a series of hills centered on Kotonoodake, which is 451.4 meters above sea level. The hills in the southern and western parts of the town are not as high as those in the eastern parts, and are densely populated residential areas that continue into the northern part of Nagasaki City. In the southern part of the town, the Oide River, a tributary of the Urakami River, flows along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
