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Garra Cambodgiensis
The Cambodian logsucker (''Garra cambodgiensis''), also known as stonelapping minnow or false Siamese algae eater, is a species of ray-finned fish in the genus ''Garra''. It lives in Southeast Asia. Description The Cambodian logsucker has a broad midlateral stripe which has a width roughly equal to two scale rows, it has two black bands on the dorsal fin while the caudal fin may be plain or have dark margins. They are sexually dimorphic with the females having fuller, rounder bellies than the males, the males develop a red inside of the mouth during the spawning season and both sexes develop tubercules on the head and snout when breeding, although these are more obvious in the males. They grow to standard length. Distribution The Cambodian logsucker lives in the Mekong of Laos, Cambodia and Thailand, as well as in the Mae Klong, Chao Phraya and the river systems of south eastern Thailand in Phrae, Phitsanulok, Ubon Ratchathani, Trang, Chanthaburi, Chiang Mai, Nakhon Si Thamm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert Tirant
Gilbert Tirant (12 June 1848, Lyon – 2 October 1899, Lyon) was a French government official and naturalist. He studied medicine at Lyon, and following graduation in 1873 he traveled to Tunisia, publishing "''Voyage dans la régence de Tunis''" (1874; co-author Fleury Rebatel) as a result. Afterwards he was stationed in French Indochina, where he spent many years as an administrator in Cochinchina, Annam and Tonkin. In 1894 he was appointed director of political affairs and protectorates in the ''Gouvernement général de l’Indochine''. In 1898 he returned to France, where he died the following year of malaria.Tirant, Gilbert Sociétés savantes de France He supplied the museum in Lyon with a rich collection of birds, fish and other animals from Cochinchina. He also described several new species of fish whose types are kept in the museum. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of Thailand
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. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phytoplankton
Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from the Greek words (), meaning 'plant', and (), meaning 'wanderer' or 'drifter'. Phytoplankton obtain their energy through photosynthesis, as do trees and other plants on land. This means phytoplankton must have light from the sun, so they live in the well-lit surface layers ( euphotic zone) of oceans and lakes. In comparison with terrestrial plants, phytoplankton are distributed over a larger surface area, are exposed to less seasonal variation and have markedly faster turnover rates than trees (days versus decades). As a result, phytoplankton respond rapidly on a global scale to climate variations. Phytoplankton form the base of marine and freshwater food webs and are key players in the global carbon cycle. They account for about half of global photosynthetic activity and at least half of the oxygen production, desp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periphyton
Periphyton is a complex mixture of algae, cyanobacteria, heterotrophic microbes, and detritus that is attached to submerged surfaces in most aquatic ecosystems. The related term Aufwuchs (German "surface growth" or "overgrowth") refers to the collection of small animals and plants that adhere to open surfaces in aquatic environments, such as parts of rooted plants. Periphyton serves as an important food source for invertebrates, tadpoles, and some fish. It can also absorb contaminants, removing them from the water column and limiting their movement through the environment. The periphyton is also an important indicator of water quality; responses of this community to pollutants can be measured at a variety of scales representing physiological to community-level changes. Periphyton has often been used as an experimental system in, e.g., pollution-induced community tolerance studies. Composition In both marine and freshwater environments, algae – particularly green algae and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monsoon
A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal oscillation of the Intertropical Convergence Zone (ITCZ) between its limits to the north and south of the equator. Usually, the term monsoon is used to refer to the rainy phase of a seasonally changing pattern, although technically there is also a dry phase. The term is also sometimes used to describe locally heavy but short-term rains. The major monsoon systems of the world consist of the West African, Asia–Australian, the North American, and South American monsoons. The term was first used in English in British India and neighboring countries to refer to the big seasonal winds blowing from the Bay of Bengal and Arabian Sea in the southwest bringing heavy rainfall to the area. Etymology The etymology of the word monsoon is not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
