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Ōhata, Aomori
was a town located in Shimokita District in northern Aomori Prefecture, Japan. Population At the time of its merger, the town had an estimated population of 8,663 and a population density of 147.8 persons per km2. History Ōhata Village was founded in 1889. It was elevated to town status on 1 May 1934. On 14 March 2005, Ōhata, along with the neighboring town of Kawauchi, and the village of Wakinosawa (all from Shimokita District), was merged into the neighboring and expanded city of Mutsu, and thus no longer exists as an independent municipality. Geography Located in northern Shimokita Peninsula facing Tsugaru Strait. The total area was 58.59 km2. Economy The town of Ōhata had an economy based primarily on commercial fishing, primarily squid, octopus, salmon and sea urchin Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aomori Prefecture
is a Prefectures of Japan, prefecture of Japan in the Tōhoku region. The prefecture's capital, largest city, and namesake is the city of Aomori (city), Aomori. Aomori is the northernmost prefecture on Japan's main island, Honshu, and is bordered by the Pacific Ocean to the east, Iwate Prefecture to the southeast, Akita Prefecture to the southwest, the Sea of Japan to the west, and Hokkaido across the Tsugaru Strait to the north. Aomori Prefecture is the List of Japanese prefectures by area, 8th-largest prefecture, with an area of , and the List of Japanese prefectures by population, 31st-most populous prefecture, with more than 1.18 million people. Approximately 45 percent of Aomori Prefecture's residents live in its two Core cities of Japan, core cities, Aomori and Hachinohe, which lie on coastal plains. The majority of the prefecture is covered in forested mountain ranges, with population centers occupying valleys and plains. Aomori is the third-most populous prefecture i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Density
Population density (in agriculture: Standing stock (other), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopulation Density Geography.about.com. March 2, 2011. Retrieved on December 10, 2011. Biological population densities Population density is population divided by total land area, sometimes including seas and oceans, as appropriate. Low densities may cause an extinction vortex and further reduce fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes of reduced fertility in low population densities are: * Increased problems with locating sexual mates * Increased inbreeding Human densities Population density is the number of people per unit of area, usually transcribed as "per square kilometre" or square mile, and which may include or exclude, for example, ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan National Route 279
is a national highway of Japan that traverses the prefectures of Aomori and Hokkaido, as well as the Tsugaru Strait that separates them. The highway begins at an intersection with National Route 5 in Hakodate, then crosses the Tsugaru Strait on a ferry from Hakodate to Ōma, Aomori, that it shares with National Route 279, where it then travels south through eastern Aomori Prefecture, passing through the city of Mutsu before ending at an intersection with National Route 4 in Noheji. National Route 279's path across Aomori follows one of the oldest roads in northern Japan, a pilgrimage path called the to Mount Osore, a caldera believed in Japanese mythology to be a gate to the underworld. Route description Hakodate National Route 279 begins at an intersection with National Route 5 in central Hakodate, east of Hakodate Station. The highway travels southwest through the city, then curves to the northwest, and turns northeast towards the former site of the city's ferry term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spine (zoology), spiny protective test (biology), tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessility (motility), sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their Echinoderm#Larval development, pluteus larvae featuring Bilateral symmetry, bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmon
Salmon (; : salmon) are any of several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family (biology), family Salmonidae, native to tributary, tributaries of the North Atlantic (''Salmo'') and North Pacific (''Oncorhynchus'') basins. ''Salmon'' is a colloquial or common name used for fish in this group, but is not a scientific name. Other closely related fish in the same family include trout, Salvelinus, char, Thymallus, grayling, Freshwater whitefish, whitefish, lenok and Hucho, taimen, all coldwater fish of the subarctic and cooler temperate regions with some sporadic endorheic populations in Central Asia. Salmon are typically fish migration, anadromous: they hatch in the shallow gravel stream bed, beds of freshwater headstreams and spend their juvenile fish, juvenile years in rivers, lakes and freshwater wetlands, migrate to the ocean as adults and live like sea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopus
An octopus (: octopuses or octopodes) is a soft-bodied, eight-limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids. Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a beaked mouth at the centre point of the eight limbs. An octopus can radically deform its shape, enabling it to squeeze through small gaps. They trail their appendages behind them as they swim. The siphon is used for respiration and locomotion (by water jet propulsion). Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse invertebrates. Octopuses inhabit various ocean habitats, including coral reefs, pelagic waters, and the seabed; some live in the intertidal zone and others at abyssal depths. Most species grow quickly, mature early, and are short-lived. In most species, the male uses a speciall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squid
A squid (: squid) is a mollusc with an elongated soft body, large eyes, eight cephalopod limb, arms, and two tentacles in the orders Myopsida, Oegopsida, and Bathyteuthida (though many other molluscs within the broader Neocoleoidea are also called ''squid'' despite not strictly fitting these criteria). Like all other cephalopods, squid have a distinct head, Symmetry (biology)#Bilateral symmetry, bilateral symmetry, and a mantle (mollusc), mantle. They are mainly soft-bodied, like octopuses, but have a small internal skeleton in the form of a rod-like gladius (cephalopod), gladius or pen, made of chitin. Squid diverged from other cephalopods during the Jurassic and occupy a similar Ecological niche, role to teleost fish as open-water predators of similar size and behaviour. They play an important role in the open-water food web. The two long tentacles are used to grab prey and the eight arms to hold and control it. The beak then cuts the food into suitable size chunks for swal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Fishing
Commercial fishing is the activity of catching fish and other seafood for Commerce, commercial Profit (economics), profit, mostly from wild fisheries. It provides a large quantity of food to many countries around the world, but those who practice it as an industry must often pursue fish far into the ocean under adverse conditions. Large-scale commercial fishing is called industrial fishing. The major fishing industries are not only owned by major corporations but by small families as well. In order to adapt to declining fish populations and increased demand, many commercial fishing operations have reduced the sustainability of their harvest by fishing further down the food chain. This raises concern for Fisheries management, fishery managers and researchers, who highlight how further they say that for those reasons, the sustainability of the marine ecosystems could be in danger of collapsing. Commercial fishermen harvest a wide variety of animals. However, a very small number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsugaru Strait
The is a strait between Honshu and Hokkaido in northern Japan connecting the Sea of Japan with the Pacific Ocean. It was named after the western part of Aomori Prefecture. The Seikan Tunnel passes under it at its narrowest point 12.1 miles (19.5 km) between Tappi Misaki on the Tsugaru Peninsula in Aomori Prefecture, Honshu, and Shirakami Misaki on the Matsumae Peninsula in Hokkaido. Western maps made prior to the 20th century also referred to this waterway as the Strait of Sangar. Japan's territorial waters extend to three nautical miles (5.6 km) into the strait instead of the usual twelve, reportedly to allow nuclear-armed United States Navy warships and submarines to transit the strait without violating Japan's prohibition against nuclear weapons in its territory. Despite this, the part of the Tsugaru Strait considered to be in international waters is still within Japan's exclusive economic zone An exclusive economic zone (EEZ), as prescribed by the 1982 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shimokita Peninsula
The is the remote northeastern cape of the Japanese island of Honshū, stretching out towards Hokkaido. Overview It is bordered by the Pacific Ocean to the east, Tsugaru Strait to the north and Mutsu Bay to the west and south. Shaped like an axe pointing west, the peninsula has a thin "axe handle" connecting the mountainous "axe blade" to the mainland of Honshū to the south. The peninsula contains the northernmost point on Honshū, Cape Ōma, and the largest sand dunes in Japan (the Sarugamori Sand Dunes). The peninsula owes its name to its being the lower (''shimo'') portion of the former Kita District (North District) of Mutsu Province before the premodern province was divided in 1868. Administratively the area is a part of Aomori Prefecture, and the bulk of the area falls within the jurisdiction of the city of Mutsu, with a number of small towns and villages along the periphery. Most of the inhabitants live in coastal areas rather than the mountainous interior. Por ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Municipal Mergers And Dissolutions In Japan
have occurred since the Meiji era to join the facilities and legal boundaries of municipal districts, towns, and cities. Often, these mergers are driven by a necessity to consolidate villages and 'natural settlements' into larger-scale cities as modernization progressed and consolidation was promoted to provide greater access to public facilities and schools. History There have been several "waves" of merger activity between Japanese municipalities. The first wave, known as , occurred in the period from 1888 to 1889, when the modern municipal system was established. Before the mergers, existing municipalities were the direct successors of spontaneous hamlets called , or villages under the ''han'' system. This ''han'' system is still reflected in the postal system for rural areas as postal units called . The mergers slashed the number of that existed at the time from 71,314 to 15,859 cities, towns and villages, justified at the time by the increased scale and relevance of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wakinosawa, Aomori
was a village located in Shimokita District in northern Aomori Prefecture, Japan. History Wakinosawa Village was founded in 1889 from the merger the hamlets of Wakinosawa with neighboring Ozawa. On March 14, 2005, Wakinosawa, along with the neighboring towns of Kawauchi and Ōhata (all from Shimokita District), was merged into the neighboring and expanded city of Mutsu, and thus no longer exists as an independent municipality. Geography and economy Located at the southwestern tip of Shimokita Peninsula facing Mutsu Bay, the village of Wakinosawa had an economy based primarily on commercial fishing. Wakinosawa was served by Route 338 (Japan) highway, but had no railway service. Ferries connect the fishing port with Aomori and Kanita on the opposite side of Mutsu Bay. Population At the time of its merger, the village had an estimated population of 2,461 and a population density Population density (in agriculture: Standing stock (other), standing stock or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
