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Lates Japonicus
The Japanese lates (''Lates japonicus''), also known as the ''akame'' (from the Japanese , literally "red eye") or Japanese barramundi, is a species of fish found in Japan. A bottom-dweller restricted to estuarine habitats and large rivers in the coastal eastern parts of the country, it is threatened by habitat destruction. As it is similar to the related barramundi, it was classified as the same species until 1984. Description The Japanese lates has a comparatively long and compressed body with a large mouth. It is a metallic grey in overall colour, with a bluish tint, darker upperparts, and lighter underparts. Its fins are greyish black with white tips, and its pupils are red. While similar to the barramundi, it differs in several features. It has a taller and deeper body (averaging a much greater size), longer third dorsal and second anal spines, fewer pectoral fin rays, more scales, and fewer gill rakers. It reaches an officially recorded maximum length of and a maximum weig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masao Katayama
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Tosa Bay
Tosa Bay () is a bay north of the line connecting Cape Muroto and Cape Ashizuri in Kochi Prefecture, Japan. Tosa Bay is better fishing grounds in Japan, which is strongly affected by the Kuroshio Current The , also known as the Black or or the is a north-flowing, warm ocean current on the west side of the North Pacific Ocean basin. It was named for the deep blue appearance of its waters. Similar to the Gulf Stream in the North Atlantic, the Ku .... References Bays of Japan Landforms of Kōchi Prefecture {{Kochi-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1984
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasound
Ultrasound is sound waves with frequency, frequencies higher than the upper audible limit of human hearing range, hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 Hertz, kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating Predation, prey and obstacles. History Acoustics, the science of sound, starts as far back as Pyth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Tokyo
, abbreviated as or UTokyo, is a public research university located in Bunkyō, Tokyo, Japan. Established in 1877, the university was the first Imperial University and is currently a Top Type university of the Top Global University Project by the Japanese government. UTokyo has 10 faculties, 15 graduate schools and enrolls about 30,000 students, about 4,200 of whom are international students. In particular, the number of privately funded international students, who account for more than 80%, has increased 1.75 times in the 10 years since 2010, and the university is focusing on supporting international students. Its five campuses are in Hongō, Komaba, Kashiwa, Shirokane and Nakano. It is considered to be the most selective and prestigious university in Japan. As of 2021, University of Tokyo's alumni, faculty members and researchers include seventeen prime ministers, 18 Nobel Prize laureates, four Pritzker Prize laureates, five astronauts, and a Fields Medalist. Hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psammoperca Waigiensis
The Waigieu seaperch (''Psammoperca waigiensis''), or Waigeo barramundi, is a species of seawater, marine fish in family (biology), family Latidae of order (biology), order Perciformes. The only species of genus ''Psammoperca'', it is native to tropical coastal waters from the Bay of Bengal in the South through Indonesia to northern Australia and north through the Philippines and the South China Sea to Japan. Reaching a maximum overall length of 47 cm (19 in), ''P. waigiensis'' is of brownish to steel-grey colouration, sometimes with white vertical bars along the body. With its typical centropomid body shape, it can be distinguished from the barramundi (''Lates calcarifer'') from the same waters by its widely set nostrils and shorter maxilla which does not reach back farther than the eye (which is reddish). The Waigeo "sea perch" occurs primarily among rocks and in coral reefs, preferring vegetated waters. It is a nocturnal predator, feeding primarily on crustaceans an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryukyu Islands
The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni the westernmost. The larger are mostly high islands and the smaller mostly coral. The largest is Okinawa Island. The climate of the islands ranges from humid subtropical climate (Köppen climate classification ''Cfa'') in the north to tropical rainforest climate (Köppen climate classification ''Af'') in the south. Precipitation is very high and is affected by the rainy season and typhoons. Except the outlying Daitō Islands, the island chain has two major geologic boundaries, the Tokara Strait (between the Tokara and Amami Islands) and the Kerama Gap (between the Okinawa and Miyako Islands). The islands beyond the Tokara Strait are characterized by their coral reefs. The Ōsumi and Tokara Islands, the northernmost of the islands, fall un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shimanto River
The is a river in western Kōchi Prefecture, Japan. 196 km in length, it has a watershed of 2,270 km². Its name is written with kanji meaning "forty thousand and ten". Since the river is remote from major cities and does not have any dams, it is sometimes referred to as "the last clear stream of Japan". Fishing and production of nori is a thriving industry along the river. It has been named one of the "Three Free-Flowing Rivers in Japan", along with the Nagara River in Gifu Prefecture and the Kakita River (柿田川 ''Kakita-gawa'') in Shizuoka Prefecture. The river also has 47 ''chinkabashi'' (沈下橋 lit. 'sinking bridge'), including those of tributaries. Chinkabashi are low water crossings constructed without parapets in order not to be washed away by floods. The prefecture decided to preserve them as cultural heritage. See also *Yoshino River The Yoshino River (吉野川 ''Yoshino-gawa'') is a river on the island of Shikoku, Japan. It is long and has a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōyodo River
The is a river which runs through Kagoshima Prefecture and Miyazaki Prefecture in Japan and ultimately drains into the Pacific Ocean. River communities The river passes through or forms the boundary of the following communities: ;Kagoshima Prefecture: :Soo, Kagoshima, Soo ;Miyazaki Prefecture: :Miyakonojō, Miyazaki, Miyakonojō, Kobayashi, Miyazaki, Kobayashi, Miyazaki, Miyazaki, Miyazaki References Rivers of Kagoshima Prefecture Rivers of Miyazaki Prefecture Rivers of Japan {{Japan-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miyazaki Prefecture
is a prefecture of Japan located on the island of Kyūshū. Miyazaki Prefecture has a population of 1,073,054 (1 June 2019) and has a geographic area of 7,735 km2 (2,986 sq mi). Miyazaki Prefecture borders Ōita Prefecture to the north, Kumamoto Prefecture to the northwest, and Kagoshima Prefecture to the southwest. Miyazaki is the capital and largest city of Miyazaki Prefecture, with other major cities including Miyakonojō, Nobeoka, and Hyūga. Miyazaki Prefecture is located in southeastern Kyūshū on Japan's Pacific coast, with its coastline extending from Nobeoka near the entrance to the Bungo Channel to Shibushi Bay in Kushima. History Historically, after the Meiji Restoration, Hyūga Province was renamed Miyazaki Prefecture. In Japan, Miyazaki Prefecture was first created in 1873 when Mimitsu Prefecture was merged with parts of Miyakonojō Prefecture. The first Miyazaki existed only until 1876 when it was merged (back) into Kagoshima Prefecture. Under publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miyazaki City
is the capital city of Miyazaki Prefecture on the island of Kyushu in Japan. The city was founded on April 1, 1924. As of July 2022, the city had an estimated population of 399,788 and a population density of 621 persons per km2. The total area is 643.67 km2. Miyazaki Airport and Miyazaki seaport serve the city. History In 1870, Hyuga Province was renamed to Miyazaki Prefecture with Miyazaki being its capital. After the completion of the nationwide railroad system, many new people began to settle in the area. In 1940, the imperialist Shōwa regime constructed the 37 meter Hakkō Ichiu pillar upon the legendary site of Emperor Jimmu's palace. Located near Miyazaki, it was originally intended to symbolize the divine right of the Empire of Japan to "unify the eight corners of the world". The tower survived the war and is now the center piece of the Heiwadai-koen peace park. On January 1, 2006, the towns of Sadowara and Tano (both from Miyazaki District), and the town o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shikoku
is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), ''Iyo-shima'' (), and ''Futana-shima'' (), and its current name refers to the four former provinces that made up the island: Awa, Tosa, Sanuki, and Iyo. Geography Shikoku Island, comprising Shikoku and its surrounding islets, covers about and consists of four prefectures: Ehime, Kagawa, Kōchi, and Tokushima. Across the Seto Inland Sea lie Wakayama, Osaka, Hyōgo, Okayama, Hiroshima, and Yamaguchi Prefectures on Honshu. To the west lie Ōita and Miyazaki Prefectures on Kyushu. Shikoku is ranked as the 50th largest island by area in the world. Additionally, it is ranked as the 23rd most populated island in the world, with a population density of 193 inhabitants per square kilometre (500/sq mi). Mountains running east and west d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
