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Deep-sea Anglerfish
Ceratioidei, the deep-sea anglerfishes or pelagic anglerfishes, is a suborder of marine Actinopterygii, ray-finned fishes, one of five suborders in the Order (biology), order Lophiiformes, the anglerfishes. These fishes are found in tropical and temperate seas throughout the world, living above the Pelagic sediment, bottom of the Deep-sea fish, deep sea, in the pelagic zone. The deep-sea anglerfishes exhibit extreme sexual dimorphism; the males are many times smaller than the females. To reproduce, a male seeks out a female, using his sharp teeth-like denticles to clamp onto the female. The details of this sexual parasitism varies between the species; in a number of species the male permanently becomes part of the female, their Tissue (biology), tissues fusing with each other. This is the only known natural example of a process called parabiosis. The Esca (fish anatomy), esca, the defining feature of all anglerfish groups, are bioluminescent in the deep-sea anglerfishes, attracting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratias Uranoscopus
''Ceratias uranoscopus'', the stargazing seadevil, is a species of Marine life, marine Actinopterygii, ray-finned fish belonging to the Family (biology), family Ceratiidae, the warty sea devils. The fish is both bathypelagic and mesopelagic and can typically be found at depths ranging from . It is endemic to tropical waters and can be found in the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific, and Indian Ocean, Indian Oceans. Taxonomy ''Ceratias uranoscopus'' was first formally Species description, described in 1877 by the Scottish Canadians, Scottish-Canadian oceanographer John Murray (oceanographer), Sir John Murray with its Type locality (biology), type locality given as the Northeastern Atlantic Ocean, between Canary Islands, Canary and Cape Verde islands at 22°18'N, 22°02'W from a depth between . The genus ''Ceratias'' is classified by the 5th edition of Fishes of the World as belonging to the family Ceratiidae in the suborder Ceratioidei of the anglerfish Order (biology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagic Zone
The pelagic zone consists of the water column of the open ocean and can be further divided into regions by depth. The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or water column between the surface of the sea and the bottom. Conditions in the water column change with depth: pressure increases; temperature and light decrease; salinity, oxygen, micronutrients (such as iron, magnesium and calcium) all change. In a manner analogous to stratification in the Earth's atmosphere, the water column can be divided vertically into up to five different layers (illustrated in the diagram), with the number of layers depending on the depth of the water. Marine life is affected by bathymetry (underwater topography) such as the seafloor, shoreline, or a submarine seamount, as well as by proximity to the boundary between the ocean and the atmosphere at the ocean surface, which brings light for photosynthesis, predation from above, and wind sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batrachoididae
Batrachoididae is the only family in the ray-finned fish order Batrachoidiformes . Members of this family are usually called toadfish or frogfish: both the English common name and scientific name refer to their toad-like appearance (''batrakhos'' is Greek for frog). Toadfish are benthic ambush predators that favor sandy or muddy substrates where their cryptic coloration helps them avoid detection by their prey. Toadfish are well known for their ability to "sing", males in particular using the swim bladder as a sound-production device used to attract mates. Evolution Toadfish are among the most basal percomorph orders, and are thought to have diverged from their closest relatives in the Late Cretaceous. The earliest known toadfish is likely '' Bacchiaichthys'' from the Late Cretaceous (Maastrichtian) of Italy, which very closely resembles modern toadfish and is one of the earliest known percomorphs. Its status as a toadfish has been disputed, as it is noted to have some tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyologist
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2025, with approximately 250 new species described each year. Etymology The word is derived from the Ancient Greek words wikt:ἰχθύς, ἰχθύς, ''ikhthus'', meaning "fish"; and wikt:-λόγος, λόγος, ''logos'', meaning "study". History The study of fish dates from the Upper Paleolithic, Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements. The study of fish receives its origins from humans' desire to feed, clothe, and equip themselves with useful implements. According to Michael Barton (professor), Michael Barton, a prominent ichthyologist and professor at Centre College, "the earliest ichthy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratiidae
Ceratiidae, the warty seadevils or caruncled seadevils, are a family of marine ray-finned fishes belonging to the suborder Ceratioidei, the deep-sea anglerfishes, in the anglerfish order Lophiiformes. The warty sea devils are sexually dimorphic with the small males being obligate sexual parasites of the much larger females. The fishes in this family are widely distributed from polar to tropical seas around the world. Etymology Ceratiidae takes its name from the genus ''Ceratias'', its type genus, meaning "horn bearer", an allusion to the esca sticking up from the snout. Taxonomy Ceratiidae was first proposed as a subfamily of Lophiidae in 1861 by the American biologist Theodore Gill, with ''Ceratias'' as its only genus. ''Ceratias'' had been proposed as a monospecific genus in 1845 by the Danish zoologist Henrik Nikolai Krøyer when he described ''Ceratias holboelli'' from the waters off Greenland. The 5th edition of Fishes of the World classifies this family in the subor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Genus
In biological taxonomy, the type genus (''genus typica'') is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal family-group taxon is a nominal genus called the 'type genus'; the family-group name is based upon that of the type genus." Any family-group name must have a type genus (and any genus-group name must have a type species, but any species-group name may, but need not, have one or more type specimens). The type genus for a family-group name is also the genus that provided the stem to which was added the ending -idae (for families). :Example: The family name Formicidae has as its type genus the genus ''Formica'' Linnaeus, 1758. Botanical nomenclature In botanical nomenclature, the phrase "type genus" is used, unofficially, as a term of convenience. In the '' ICN'' this phrase has no status. The code uses type specimens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratias
''Ceratias'' is a genus of marine ray-finned fish sometimes referred to as the doublewart- or giant seadevils, belonging to the family Ceratiidae, the warty sea devils. The fishes in this genus are found throughout the world's oceans. Taxonomy ''Ceratias'' was first proposed as a monospecific genus in 1845 by the Danish zoologist Henrik Nikolai Krøyer when he described ''Ceratias holboelli''. The type locality of ''C. holboelli'' was given as Southern Greenland. The 5th edition of Fishes of the World classifies this genus in the family Ceratiidae within the suborder Ceratioidei of the anglerfish order Lophiiformes. Within the Ceratioidei this family is a sister taxon to the Centrophrynidae. Etymology ''Ceratias'' means "horn bearer", an allusion to the esca sticking up from the snout. Species There are currently three recognized species in this genus: * ''Ceratias holboelli'' Krøyer, 1845 (Krøyer's deep sea angler fish) * '' Ceratias tentaculatus'' Norman, 1930 (souther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypelagic Zone
The bathypelagic zone or bathyal zone (from Greek βαθύς (bathýs), deep) is the part of the open ocean that extends from a depth of below the ocean surface. It lies between the mesopelagic above and the abyssopelagic below. The bathypelagic is also known as the midnight zone because of the lack of sunlight; this feature does not allow for photosynthesis-driven primary production, preventing growth of phytoplankton or aquatic plants. Although larger by volume than the photic zone, human knowledge of the bathypelagic zone remains limited by ability to explore the deep ocean. Physical characteristics The bathypelagic zone is characterized by a nearly constant temperature of approximately and a salinity range of 33-35 g/kg. This region has little to no light because sunlight does not reach this deep in the ocean and bioluminescence is limited. The hydrostatic pressure in this zone ranges from 100-400 atmospheres (atm) due to the increase of 1 atm for every 10 m depth. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescent
Bioluminescence is the emission of light during a chemiluminescence reaction by living organisms. Bioluminescence occurs in multifarious organisms ranging from marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, dinoflagellates and terrestrial arthropods such as fireflies. In some animals, the light is bacteriogenic, produced by symbiotic bacteria such as those from the genus '' Vibrio''; in others, it is autogenic, produced by the animals themselves. In most cases, the principal chemical reaction in bioluminescence involves the reaction of a substrate called luciferin and an enzyme, called luciferase. Because these are generic names, luciferins and luciferases are often distinguished by the species or group, e.g. firefly luciferin or cypridina luciferin. In all characterized cases, the enzyme catalyzes the oxidation of the luciferin resulting in excited state oxyluciferin, which is the light emitter of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esca (fish Anatomy)
The anglerfish are ray-finned fish in the order Lophiiformes (). Both the order's common and scientific name comes from the characteristic mode of predation, in which a modified dorsal fin ray acts as a lure for prey (akin to a human angler, and likened to a crest or "'' lophos''"). The modified fin ray, with the very tip being the esca and the length of the structure the illicium, is adapted to attract specific prey items across the families of anglerfish by using different luring methods. Anglerfish occur worldwide. The majority are bottom-dwellers, being demersal fish, while the aberrant deep-sea anglerfish are pelagic, (mostly) living high in the water column. Some live in the deep sea (such as the deep-sea anglerfish and sea toads), while others live in shallower waters, such as the frogfishes and some batfishes. Anglerfish are notable for their sexual dimorphism, which is sometimes extremely pronounced; the males may be several orders of magnitude smaller in mas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabiosis
Parabiosis is a laboratory technique used in physiological research, derived from the Greek word meaning "living beside." The technique involves the surgical joining of two living organisms in such a way that they develop a single, shared physiological system. Through this approach, researchers can study the exchange of blood, hormones, and other substances between the two organisms, allowing for the examination of a wide range of physiological phenomena and interactions. Parabiosis has been employed in various fields of study, including stem cell research, endocrinology, aging research, and immunology. Heterochronic parabiosis involves parabiosis of animals of different ages; this allows researchers to study how circulating blood-borne factors influence aging and tissue regeneration. The method has led to insights into stem cell function, neurogenesis, regeneration (biology), and aging. In contrast, isochronic parabiosis joins two animals of the same age. Parabiotic experim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tissue (biology)
In biology, tissue is an assembly of similar cells and their extracellular matrix from the same embryonic origin that together carry out a specific function. Tissues occupy a Biological organisation#Levels, biological organizational level between cell (biology), cells and a complete organ (biology), organ. Accordingly, organs are formed by the functional grouping together of multiple tissues. The English word "tissue" Morphological derivation, derives from the French word "", the past participle of the verb tisser, "to weave". The study of tissues is known as histology or, in connection with disease, as histopathology. Xavier Bichat is considered as the "Father of Histology". Plant histology is Studied Space Shuttle designs, studied in both plant anatomy and Plant physiology, physiology. The classical tools for studying tissues are the Microtome#Applications, paraffin block in which tissue is embedded and then sectioned, the staining, histological stain, and the Microscope, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
