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Carijoa Riisei
''Carijoa riisei'', the snowflake coral or branched pipe coral, is a species of soft coral in the family Clavulariidae. It was originally thought to have been native to the tropical western Atlantic Ocean and subsequently spread to other areas of the world such as Hawaii and the greater tropical Pacific, where it is regarded as an invasive species. The notion that it is native to the tropical western Atlantic was perpetuated from the fact that the type specimen, described by Duchassaing & Michelotti in 1860, was collected from the US Virgin Islands. It has subsequently been shown through molecular evidence that it is more likely that the species is in fact native to the Indo-Pacific and subsequently spread to the western tropical Atlantic most likely as a hull fouling species prior to its original description. Description ''Carijoa riisei'' is a colonial soft coral with a tangled, bushy growth form. It has hollow branches that may be long, growing from a creeping stolon. The bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bearded Fireworm
''Hermodice carunculata'', the bearded fireworm, is a type of marine bristleworm belonging to the Amphinomidae family, native to the tropical Atlantic Ocean and the Mediterranean Sea. Description Bearded fireworms are usually 15 centimetres in average length, but can reach up to 30 centimetres.de Kluijver, M.J.; Ingalsuo, S.S.; de Bruyne, R.H. (2000) Macrobenthos of the North Sea D-ROM 1. Keys to Mollusca and Brachiopoda. World Biodiversity Database CD-ROM Series. Expert Center for Taxonomic Identification (ETI): Amsterdam, The Netherlands. . 1 cd-rom pp.,M. De Kluijver, G. Gijswijt, R. de Leon & I. da Cunda, "Interactive Guide to Caribbean Diving.",CD-ROM, Expertise-Centrum voor Taxonomische Identifikatie, 2003, At first glance, this fire worm looks like a centipede with its elongated and flattened appearance, multiple segments, white silks, and parapodia and gills located on the side of its body. Its colors are varied and range from greenish, to yellowish, to reddish, gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tritoniopsis Elegans
''Tritoniopsis elegans'' is a species of dendronotid nudibranch. It is a marine gastropod mollusc in the family Tritoniidae and is found in the western Indo-Pacific. It was first described by the French naturalist Jean Victoire Audouin in 1826, the type specimen being found in the Red Sea. Description ''Tritoniopsis elegans'' is a slender nudibranch growing to about , with several pairs of dendritic (branching) cerata and rhinophores tipped with short tentacles. It varies in colour from translucent clear to translucent orange or orange-red and has a pattern of white opaque markings. The different colour forms do not seem to be a result of the animals' diet because the two forms sometimes occur alongside each other when the animals are feeding on the same colonial soft coral. The white form used to be known as ''Tritoniopsilla alba'' but this is now considered to be a synonym for ''T. elegans''. Distribution and habitat ''Tritoniopsis elegans'' was described from the Red Sea. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Pest Control
Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role. It can be an important component of integrated pest management (IPM) programs. There are three basic strategies for biological pest control: classical (importation), where a natural enemy of a pest is introduced in the hope of achieving control; inductive (augmentation), in which a large population of natural enemies are administered for quick pest control; and inoculative (conservation), in which measures are taken to maintain natural enemies through regular reestablishment. Natural enemies of insect pests, also known as biological control agents, include predators, parasitoids, pathogens, and competitors. Biological control agents of plant diseases are most often referred to as antagonists. Biologic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllodesmium Poindimiei
''Phyllodesmium poindimiei'' (AKA: Spun Of Light) is an Alcyonacea feeding, aeolid nudibranch Gastropod belonging to the family Facelinidae. Cerata are important in this clade in terms of their physical defense and efficient metabolic processes. This species is spread sporadically along tropical coastal regions such as Australia, Hawaii, and the Indo-Pacific living in diverse marine habitats such as coral reefs. Unlike other species in the ''Opisthobranch'' Mollusca clade, ''P. poindimiei''’s lush pink cerata are used for defensive purposes other than Nematocyst (dinoflagellate) capture and toxin release. Organismal ties within these thriving, tropical ecosystems can be determinants of environment change, which affects massive coral ecosystems. Continuously changing marine ecosystems, such as coral reefs, are directly linked to the evolution of organisms that live and thrive in the tropics such as the soft nudibrach ''P. poindimiei''. Evolution and description This monophyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antipathes Grandis
''Antipathes'' is a genus of coral in the order Antipatharia, composed of black coral (so named for its black skeleton). Distinct features vary greatly within this genus: it contains symmetrically aligned as well as irregularly shaped corals, a range of different colors, and colonies that can be either sparsely branched or closely packed. polyps for these corals have six tentacles that are each lined with stinging cells. Unlike their reef-building cousins, these coral lack photosynthesizing algae and are not restricted to the lighter surface regions. They prefer to live in deeper waters near currents so they can catch and eat passing zooplankton. Species Species included in this genus are: * '' Antipathes aculeata'' (Brook, 1889) * '' Antipathes arborea'' Dana, 1846 * '' Antipathes assimilis'' (Brook, 1889) * '' Antipathes atlantica'' Gray, 1857 * '' Antipathes brooki'' (Whitelegge & Hill, 1899) * ''Antipathes caribbeana ''Antipathes'' is a genus of coral in the order Antipat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antipathes Dichotoma
''Antipathes dichotoma'' is a species of colonial coral in the order Antipatharia, the black corals, so named because their calcareous skeletons are black. It was first described by the German zoologist and botanist Peter Simon Pallas in 1766, from a single specimen he received from near Marseilles in the Mediterranean Sea. Description A colony of ''Antipathes dichotoma'' can grow to a height of or more. It forms a sparsely branching structure with slender, flexible branches arranged irregularly around the trunk. The angle at which the branches project is variable but is often nearly 90°. The smaller branches bear four to six rows of short, smooth conical spines. The polyps are in diameter with three or four polyps per centimetre. They are arranged in a single series on the smallest branches and in multiple series on the largest ones. There is considerable variation in appearance of neighbouring colonies and in different parts of the same colony. Distribution ''Antipathes dic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antipathes
''Antipathes'' is a genus of coral in the order Antipatharia, composed of black coral (so named for its black skeleton). Distinct features vary greatly within this genus: it contains symmetrically aligned as well as irregularly shaped corals, a range of different colors, and colonies that can be either sparsely branched or closely packed. polyps for these corals have six tentacles that are each lined with stinging cells. Unlike their reef-building cousins, these coral lack photosynthesizing algae and are not restricted to the lighter surface regions. They prefer to live in deeper waters near currents so they can catch and eat passing zooplankton. Species Species included in this genus are: * '' Antipathes aculeata'' (Brook, 1889) * '' Antipathes arborea'' Dana, 1846 * '' Antipathes assimilis'' (Brook, 1889) * '' Antipathes atlantica'' Gray, 1857 * '' Antipathes brooki'' (Whitelegge & Hill, 1899) * ''Antipathes caribbeana ''Antipathes'' is a genus of coral in the order Antipat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plankton
Plankton are the diverse collection of organisms found in Hydrosphere, water (or atmosphere, air) that are unable to propel themselves against a Ocean current, current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales. Marine plankton include bacteria, archaea, algae, protozoa and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries. Freshwater plankton are similar to marine plankton, but are found in the freshwaters of lakes and rivers. Plankton are usually thought of as inhabiting water, but there are also airborne versions, the aeroplankton, that live part of their lives drifting in the atmosphere. These include plant spores, pollen and wind-scattered seeds, as well as microorganisms swept into the air from terrestrial dust storms and oceanic plankton swept into the air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthos
Benthos (), also known as benthon, is the community of organisms that live on, in, or near the bottom of a sea, river, lake, or stream, also known as the benthic zone.Benthos from the Census of Antarctic Marine Life website This community lives in or near marine or freshwater sedimentary environments, from s along the , out to the , and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamete
A gamete (; , ultimately ) is a haploid cell that fuses with another haploid cell during fertilization in organisms that reproduce sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. In species that produce two morphologically distinct types of gametes, and in which each individual produces only one type, a female is any individual that produces the larger type of gamete—called an ovum— and a male produces the smaller type—called a sperm. Sperm cells or spermatozoa are small and motile due to the flagellum, a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell or ovum is relatively large and non-motile. In short a gamete is an egg cell (female gamete) or a sperm (male gamete). In animals, ova mature in the ovaries of females and sperm develop in the testes of males. During fertilization, a spermatozoon and ovum unite to form a new diploid organism. Gametes carry half the genetic information of an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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