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Kayamkulam Kayal
Kayamkulam Kayal, Kayamkulam Lake or Kayamkulam Estuary is a shallow brackish water lagoon streaching between Panmana and Karthikapally. It has an outlet to the Arabian sea at Kayamkulam barrage. The Kayal used to be connected to the sea most of the time except during dry season when a bar like formation separates it from the sea. Now the bar has been opened up permanently for construction of Kayamkulam Fishing Harbor. Kayamkulam boat race is conducted in Kayamkulam Kayal. History There is a popular belief that Kayamkulam kayal was once lush green fields and Kayamkulam Raja, angry and desolate from being defeated by Travancore King Marthanda Varma, ordered his naval officers, Arattupuzha Arayars, to rupture the barrier separating it from the sea and let salt water in to make the fields un-cultivable. It is believed that when Kayamkulam was annexed the King threw all the valuables in his palace into Kayamkulam lake and fled the Kingdom. In Aithihyamala it is mentioned that Kay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achankovil
Achankovil is a 128 km long west flowing river in Kerala, India, which flows through Kollam, Pathanamthitta, and Alappuzha districts. The river drains vast tract of fertile plains of Upper Kuttanad in the Alappuzha and Pathanamthitta districts. It also sustains numerous urban settlements along its course such as Konni, Pathanamthitta, Pandalam, Mavelikkara etc. Course The river has its origin in the peak '' Devar Mala'' of the Western Ghats situated in the Konni Reserve Forest. Rivers like Rishimala, Pashukidamettu and Ramakkaltheri form the major tributaries of the Achenkovil river. It flows south west from its origin and enters Kollam district near Achencovil village. Then the river switches its course towards north west and flows almost 20 kms through Kollam district before re-entering Pathanamthitta district near Kalleli. Later it flows through the hilly towns of Konni, Kumbazha, Mylapra, Konnithazham, Vettoor, Pathanamthitta, Pramadam, Vallikode and enters into t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillariophyceae
Bacillariophyceae is a group of pennate diatoms with a raphe (raphids). According to Ruggiero et al., 2015, the diatoms are treated as follows. This treatment largely reflects that used by Algaebase as at 2015, and is also reflected in the current (mid 2020) treatment used iDiatomBase the World Register of Marine Species (WoRMS) of which DiatomBase is a part, and the Catalogue of Life. This treatment is identical to that of Round et al., 1990, except that all diatoms are treated as a single class, Round et al.'s classes are reduced to subclasses, and the latter's original subclasses are omitted. It has 3 subclasses, '' Bacillariophycidae'', ''Coscinodiscophycidae'' and '' Fragilariophycidae'' Subclass Bacillariophycidae Contains the following orders; * Achnanthales (2k) * Bacillariales (3k) * Cymbellales (4k) * Dictyoneidales (17) * Eunotiales (2k) * Lyrellales (38) * Mastogloiales (825) * Naviculales (18k) * Rhopalodiales (527) * Surirellales (2k) * Thalassiophysales (1k) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiger Perch
Grunters or tigerperches are ray-finned fishes in the family Terapontidae (also spelled Teraponidae, Theraponidae or Therapontidae). This family is part of the superfamily Percoidea of the order Perciformes. Characteristics The Terapontidae is a large family of small to medium-sized perciform fishes which occur in marine, brackish and fresh waters in the Indo-Pacific region. They are characterised by a single long-based dorsal fin which has a notch marking the boundary between the spiny and soft-rayed portions. They have small to moderate-sized scales, a continuous lateral line reaching the caudal fin, and most species lack teeth on the roof of the mouth. The marine species are found in inshore sea and brackish waters, some species are able to enter extremely saline and fresh waters. In Australia and New Guinea there are a number of species restricted to fresh water. Classification The following genera are classified within the family Terpontidae: * '' Amniataba'' Whitley, 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greasy Grouper
The greasy grouper (''Epinephelus tauvina''), also known as the Arabian grouper or greasy rockcod, is an Indo-Pacific fish species of economic importance belonging to the family Serranidae. Distribution The greasy grouper occurs in the Red Sea and along the East African coast, east to the Pitcairn group, north to Japan, and south to Lord Howe Island. It is not common in Fiji, Tonga, or French Polynesia. Habitat The species inhabits clear-water areas on coral reefs (at depths to 50 m), although juveniles may venture into reef flats, tidepools, and mangrove estuaries. Description ''Epinephelus tauvina'' grows up to in length. These fish have a wide, upward-facing mouth with rather thick lips. Their heads and bodies are pale greenish grey or brown with round spots, varying from orange-red to dark brown. A group of black spots may be visible on the body at the base of the rear of the dorsal fin. Five vertical darker shaded bars may also be present on their bodies. It is similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluespot Mullet
The bluespot mullet (''Crenimugil seheli'') is a member of the ray-finned fish family Mugilidae found worldwide in coastal temperate and tropical waters, and in some species in fresh water. ''Crenimugil seheli'' have served as an important source of food in South East Asia. References Crenimugil, bluespot mullet Fish described in 1775, bluespot mullet Taxa named by Peter Forsskål {{mugiliformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold-spot Mullet
''Chelon parsia'', the goldspot mullet, is a ray-finned fish of the family Mugilidae. It is one of seven species in the genus ''Chelon''. This species is found in the Indian Ocean, specifically in shallow coastal waters of Pakistan, India, Sri Lanka and the Andaman Islands. It is also lives in lagoons, estuaries and even tidal rivers. Description This species reaches a maximum length of 16 cm. It is oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and ... like other members of its genus. References Further reading *Thomson, J.M., 1990. Mugilidae. p. 855-859. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 7399). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Largescale Mullet
The largescale mullet (''Planiliza macrolepis'') is a species of fish in the family Mugilidae The mullets or grey mullets are a family (Mugilidae) of ray-finned fish found worldwide in coastal temperate and tropical waters, and some species in fresh water. Mullets have served as an important source of food in Mediterranean Europe since R .... It is found in the Indo-Pacific. Description The largescale mullet is greenish-grey above and silvery grey beneath. The fins are bluish-grey with darker edges. The top of the back is nearly straight when viewed from the side while the underside is rounded. The first dorsal fin has 4-5 spines with 8 or 9 soft rays and the anal fin has 3 spines with about 9 soft rays. Distribution The largescale mullet is found in shallow coastal areas in the Indo-Pacific region including estuaries and water with low salinity. References External linksFishBase {{Taxonbar, from=Q3642095 Largescale mullet Taxa named by Andrew Smith (zoologist) Fish de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flathead Mullet
The flathead grey mullet (''Mugil cephalus'') is an important food fish species in the mullet family Mugilidae. It is found in coastal tropical and subtropical waters worldwide. Its length is typically . It is known with numerous English names, including the flathead mullet, striped mullet (US, American Fisheries Society name), black mullet, bully mullet, common mullet, grey mullet, sea mullet and mullet, among others. The flathead grey mullet is a mainly diurnal coastal species that often enters estuaries and rivers. It usually schools over sand or mud bottoms, feeding on zooplankton. The adult fish normally feed on algae in fresh water. The species is euryhaline, meaning that the fish can acclimate to different levels of salinity.Minckley, W.L. 1973. Fishes of Arizona. Arizona Game and Fish Department, Phoenix. pp. 257-258. Description The back of the fish is olive-green, sides are silvery and shade to white towards the belly. The fish may have six to seven distinctive latera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prawns
Prawn is a common name for small aquatic crustaceans with an exoskeleton and ten legs (which is a member of the order decapoda), some of which can be eaten. The term "prawn"Mortenson, Philip B (2010''This is not a weasel: a close look at nature's most confusing terms''Pages 106–109, John Wiley & Sons. . is used particularly in the United Kingdom, Ireland, and Commonwealth nations, for large swimming crustaceans or shrimp, especially those with commercial significance in the fishing industry. Shrimp that are present in this category often belong to the suborder Dendrobranchiata. In North America, the term is used less frequently, typically for freshwater shrimp. The terms shrimp and prawn themselves lack scientific standing. Over the years, the way they are used has changed, and in contemporary usage the terms are almost interchangeable. Shrimp'' vs. ''prawn Regional distinctions The terms shrimp and prawn originated in Britain. In the use of common names for species, shrim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mullet (fish)
The mullets or grey mullets are a family (Mugilidae) of ray-finned fish found worldwide in coastal temperate and tropical waters, and some species in fresh water. Mullets have served as an important source of food in Mediterranean Europe since Roman times. The family includes about 78 species in 20 genera. Mullets are distinguished by the presence of two separate dorsal fins, small triangular mouths, and the absence of a lateral line organ. They feed on detritus, and most species have unusually muscular stomachs and a complex pharynx to help in digestion. Classification and naming Taxonomically, the family is currently treated as the sole member of the order Mugiliformes, but as Nelson says, "there has been much disagreement concerning the relationships" of this family. The presence of fin spines clearly indicates membership in the superorder Acanthopterygii, and in the 1960s, they were classed as primitive perciforms, while others have grouped them in Atheriniformes. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foraminiferans
Foraminifera (; Latin for "hole bearers"; informally called "forams") are single-celled organisms, members of a phylum or class of amoeboid protists characterized by streaming granular ectoplasm for catching food and other uses; and commonly an external shell (called a "test") of diverse forms and materials. Tests of chitin (found in some simple genera, and Textularia in particular) are believed to be the most primitive type. Most foraminifera are marine, the majority of which live on or within the seafloor sediment (i.e., are benthic), while a smaller number float in the water column at various depths (i.e., are planktonic), which belong to the suborder Globigerinina. Fewer are known from freshwater or brackish conditions, and some very few (nonaquatic) soil species have been identified through molecular analysis of small subunit ribosomal DNA. Foraminifera typically produce a test, or shell, which can have either one or multiple chambers, some becoming quite elaborate in struc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oscillatoria
''Oscillatoria'' is a genus of filamentous cyanobacterium which is often found in freshwater environments, such as hot springs, and appears blue-green. Its name refers to the oscillating motion of its filaments as they slide against each other to position the colony facing a light source. ''Oscillatoria'' reproduces by fragmentation, facilitated by dead cells which separate a filament into separate sections, or hormogonia, which then grow. ''Oscillatoria'' uses photosynthesis to survive and reproduce. Each filament of oscillatoria consists of trichome which is made up of rows of cells. The tip of the trichome oscillates like a pendulum. In reproduction, it takes place by vegetative means only. Usually the filament breaks into a number of fragments called hormogonia. Each hormogonium consist of one or more cells and grow into a filament by cell division in one direction. ''Oscillatoria'' are the subject of research into the natural production of butylated hydroxytoluene (BHT), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
