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Freshwater Sardine
''Sardinella tawilis'' (the freshwater sardinella, freshwater herring, bombon sardine or freshwater sardine) is a freshwater sardine found exclusively in the Philippines. It is the only member of the genus ''Sardinella'' known to exist entirely in fresh water. Locally, they are known in Filipino as ''tawilis''. ''S. tawilis'' is listed in the Ark of Taste international catalogue of endangered heritage foods of Philippine cuisine by the Slow Food movement. In January 2019, the International Union for Conservation of Nature declared ''S. tawilis'' an endangered species. Etymology and taxonomic history ''Sardinella'' is the diminutive of the Greek ''sarda'', meaning literally "little sardine". The species was originally identified and named in 1927 as ''Harengula tawilis'' by Albert William Herre, the Chief of the Fisheries Division of the Bureau of Science in Manila. The species was later moved to the more appropriate and taxonomically accurate genus, ''Sardinella''. Descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert William Herre
Albert William Christian Theodore Herre (September 16, 1868 – January 16, 1962) was an American ichthyologist and lichenologist. Herre was born in 1868 in Toledo, Ohio. He was an alumnus of Stanford University, where he received a Bachelor of Science degree in botany in 1903. Herre also received a master's degree and a Ph.D. from Stanford, both in ichthyology. He died in Santa Cruz, California in 1962. Work in the Philippines Albert W. Herre was perhaps best known for his Taxonomy (biology), taxonomic work in the Philippines, where he was the Chief of Fisheries of the Bureau of Fisheries and Aquatic Resources, Bureau of Science in Manila from 1919 to 1928. While in the Bureau of Science of the Insular Government of the Philippine Islands (which were administered by the United States at the time), Herre was responsible for discovering and describing many new species of fish. Legacy Herre is commemorated in the scientific name of a species of gecko, ''Lepidodactylus herrei'', wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batangas
Batangas, officially the Province of Batangas ( tl, Lalawigan ng Batangas ), is a province in the Philippines located in the Calabarzon region on Luzon. Its capital is the city of Batangas, and is bordered by the provinces of Cavite and Laguna to the north, and Quezon to the east. Across the Verde Island Passages to the south is the island of Mindoro and to the west lies the South China Sea. Poetically, Batangas is often referred to by its ancient name Kumintáng. Batangas is one of the most popular tourist destinations near Metro Manila. It is home to the well-known Taal Volcano, one of the Decade Volcanoes, and Taal Heritage town, a small town that has ancestral houses and structures dating back to the 19th century. The province also has numerous beaches and diving spots including Anilao in Mabini, Sombrero Island in Tingloy, Ligpo Island and Sampaguita Beach in Bauan, Matabungkay in Lian, Punta Fuego in Nasugbu, Calatagan and Laiya in San Juan. All of the mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eruption Of Taal Volcano In 2020
Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions: * Magmatic eruptions are the most well-observed type of eruption. They involve the decompression of gas within magma that propels it forward. * Phreatic eruptions are driven by the superheating of steam due to the close proximity of magma. This type exhibits no magmatic release, instead causing the granulation of existing rock. * Phreatomagmatic eruptions are driven by the direct interaction of magma and water, as opposed to phreatic eru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calanoid
Calanoida is an order of copepods, a group of arthropods commonly found as zooplankton. The order includes around 46 families with about 1800 species of both marine and freshwater copepods between them. Description Calanoids can be distinguished from other planktonic copepods by having first antennae at least half the length of the body and biramous second antennae. However, their most distinctive anatomical trait is the presence of a joint between the fifth and sixth body segments. The largest specimens reach long, but most do not exceed long. Classification Calanoida contains the following families, as well as the genus '' Microdisseta'' (which is currently ''incertae sedis''); * Acartiidae * Aetideidae * Arctokonstantinidae * Arietellidae * Augaptilidae * Bathypontiidae * Calanidae * Calocalanidae * Candaciidae * Centropagidae * Clausocalanidae * Diaixidae * Diaptomidae * Discoidae * Epacteriscidae * Eucalanidae * Euchaetidae * Fosshageniidae * Heterorhabdidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Flea
The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more undescribed. The oldest fossils of diplostracans date to the Jurassic, though their modern morphology suggests that they originated substantially earlier, during the Paleozoic. Some have also adapted to a life in the ocean, the only members of Branchiopoda to do so, even if several anostracans live in hypersaline lakes. Most are long, with a down-turned head with a single median compound eye, and a carapace covering the apparently unsegmented thorax and abdomen. Most species show cyclical parthenogenesis, where asexual reproduction is occasionally supplemented by sexual reproduction, which produces resting eggs that allow the species to survive harsh conditions and disperse to distant habitats. Description They are mostly long, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotifer
The rotifers (, from the Latin , "wheel", and , "bearing"), commonly called wheel animals or wheel animalcules, make up a phylum (Rotifera ) of microscopic and near-microscopic pseudocoelomate animals. They were first described by Rev. John Harris in 1696, and other forms were described by Antonie van Leeuwenhoek in 1703. Most rotifers are around long (although their size can range from to over ), and are common in freshwater environments throughout the world with a few saltwater species. Some rotifers are free swimming and truly planktonic, others move by inchworming along a substrate, and some are sessile, living inside tubes or gelatinous holdfasts that are attached to a substrate. About 25 species are colonial (e.g., '' Sinantherina semibullata''), either sessile or planktonic. Rotifers are an important part of the freshwater zooplankton, being a major foodsource and with many species also contributing to the decomposition of soil organic matter. Most species of the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copepod
Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat (ecology), habitat. Some species are planktonic (inhabiting sea waters), some are benthos, benthic (living on the ocean floor), a number of species have parasitic phases, and some continental species may live in limnoterrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests, bogs, springs, ephemeral ponds, and puddles, damp moss, or water-filled recesses (phytotelmata) of plants such as bromeliads and pitcher plants. Many live underground in marine and freshwater caves, sinkholes, or stream beds. Copepods are sometimes used as Ecological indicator, biodiversity indicators. As with other crustaceans, copepods have a larval form. For copepods, the egg hatches into a Crustacean larvae#Nauplius, nauplius form, with a head and a tail but no true thorax or abdomen. The larva molts several times until it resembles the adult an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter Feeder
Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feeding are clams, krill, sponges, baleen whales, and many fish (including some sharks). Some birds, such as flamingos and certain species of duck, are also filter feeders. Filter feeders can play an important role in clarifying water, and are therefore considered ecosystem engineers. They are also important in bioaccumulation and, as a result, as indicator organisms. Fish Most forage fish are filter feeders. For example, the Atlantic menhaden, a type of herring, lives on plankton caught in midwater. Adult menhaden can filter up to four gallons of water a minute and play an important role in clarifying ocean water. They are also a natural check to the deadly red tide. Extensive article on the role of menhaden in the ecosystem and possible resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epipelagic
The photic zone, euphotic zone, epipelagic zone, or sunlight zone is the uppermost layer of a body of water that receives sunlight, allowing phytoplankton to perform photosynthesis. It undergoes a series of physical, chemical, and biological processes that supply nutrients into the upper water column. The photic zone is home to the majority of aquatic life due to the activity (primary production) of the phytoplankton. Photosynthesis in photic zone In the photic zone, the photosynthesis rate exceeds the respiration rate. This is due to the abundant solar energy which is used as an energy source for photosynthesis by primary producers such as phytoplankton. These phytoplankton grow extremely quickly because of sunlight's heavy influence, enabling it to be produced at a fast rate. In fact, ninety five percent of photosynthesis in the ocean occurs in the photic zone. Therefore, if we go deeper, beyond the photic zone, such as into the compensation point, there is little to no phyto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pansipit River
The Pansipit River is a short river located in the Batangas province of the Philippines. The river is the sole drainage outlet of Taal Lake, which empties to Balayan Bay. The river stretches some passing along the municipalities of Agoncillo, Lemery, San Nicolas, and Taal, serving as a boundary between the communities. It has a very narrow entrance from Taal Lake. Etymology The Pansipit River was known as the Taa-lan River. The municipality of Taal and the Taa-lan River were named after the Taa-lan tree, which grows along the river. The tree also grew along the shore of Bombon Lake (now known as Taal Lake). History Before the eruptions of Taal Volcano in the 18th century, Pansipit was a navigable channel connecting Taal Lake to Balayan Bay. Sailing ships and Chinese junks freely entered Taal Lake to visit the town of Taal and other population centers along its shores.Herre, Albert (1927)"The Fisheries of Taal Lake and Lake Naujan" pp. 288-289. Philippine Journal of S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balayan Bay
Balayan Bay is a large bay of Luzon Island in the Philippines. It is part of the Verde Island Passage and its entire shore is in the province of Batangas. The bay is between wide. It is separated from the South China Sea to the west by the Calatagan Peninsula, which has Cape Santiago as its southern point. The Calumpan Peninsula forms the bay's eastern side, that separates it from Batangas Bay. The following municipalities line the bay from west to east: Calatagan, Balayan, Calaca, Lemery, Taal, San Luis, Bauan Bauan, officially the Municipality of Bauan ( tgl, Bayan ng Bauan), is a 1st class municipality in the province of Batangas, Philippines. According to the 2020 census, it has a population of 90,819 people. History Religious attribution and mi ..., and Mabini. References External links * Bays of the Philippines Landforms of Batangas {{Calabarzon-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
