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Galeus Mincaronei
The southern sawtail catshark (''Galeus mincaronei'') is a species of catshark, part of the family Scyliorhinidae, endemic to southern Brazil. It inhabits deepwater reefs on the upper continental slope at a depth of . Reaching at least in length, this slim-bodied species closely resembles the Antilles catshark (''G. antillensis''). It has a prominent crest of enlarged dermal denticles along the dorsal edge of the caudal fin, as well as a distinctive color pattern of dark oval blotches, outlined in white, along its back. The southern sawtail catshark is oviparous, with females producing reddish egg capsules. The International Union for Conservation of Nature (IUCN) has assessed it as Vulnerable; it is often taken as bycatch and may be threatened by intensifying squid fishing. Taxonomy The first known specimens of the southern sawtail catshark were caught in a series of experimental fish traps set off Rio Grande do Sul, Brazil, in 1988. Initially identified as '' Galeu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Marcelo Rosa Soto
Jules is the French form of the Latin "Julius" (e.g. Jules César, the French name for Julius Caesar). It is the given name of: People with the name *Jules Aarons (1921–2008), American space physicist and photographer *Jules Abadie (1876–1953), French politician and surgeon *Jules Accorsi (born 1937), French football player and manager *Jules Adenis (1823–1900), French playwright and opera librettist *Jules Adler 1865–1952), French painter *Jules Asner (born 1968), American television personality *Jules Aimé Battandier (1848–1922), French botanist *Jules Bernard (born 2000), American basketball player *Jules Bianchi (1989–2015), French Formula One driver *Jules Breton (1827–1906), French Realist painter *Jules-André Brillant (1888–1973), Canadian entrepreneur *Jules Brunet (1838–1911), French Army general *Jules Charles-Roux (1841–1918), French businessman and politician *Jules Dewaquez (1899–1971), French footballer *Jules Marie Alphonse Jacques de Dixmu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Trap
A fish trap is a trap used for fishing. Fish traps include fishing weirs, lobster traps, and some fishing nets such as fyke nets. Traps are culturally almost universal and seem to have been independently invented many times. There are two main types of trap, a permanent or semi-permanent structure placed in a river or tidal area and bottle or pot trap that are usually, but not always baited to attract prey, and are periodically lifted out of the water. A typical contemporary trap consists of a frame of thick steel wire in the shape of a heart, with chicken wire stretched around it. The mesh wraps around the frame and then tapers into the inside of the trap. Fishes that swim inside through this opening cannot get out, as the chicken wire opening bends back into its original narrowness. In earlier times, traps were constructed of wood and fibre. Fish traps contribute to the problems of marine debris and bycatch. __TOC__ History Traps are culturally almost universal and see ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Catarina (state)
Santa Catarina (, ) is a States of Brazil, state in the South Region, Brazil, South Region of Brazil. It is the List of Brazilian states by area, 7th smallest state in total area and the List of Brazilian states by population, 11th most populous. Additionally, it is the 9th largest settlement, with List of municipalities in Santa Catarina, 295 municipalities. The state, with 3.4% of the Brazilian population, generates 3.8% of the national GDP. Santa Catarina is bordered by Paraná (state), Paraná to the north, Rio Grande do Sul to the south, the Atlantic Ocean to the east, and the Provinces of Argentina, Argentine province of Misiones Province, Misiones to the west. The coastline is over 450 km, i.e., about half of Portugal's mainland coast. The seat of the state executive, Legislature, legislative and judiciary powers is the capital Florianópolis. Joinville, however, is the most populous city in the state. Besides Espírito Santo, Santa Catarina is the only state whose ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
States Of Brazil
The federative units of Brazil ( pt, unidades federativas do Brasil) are subnational entities with a certain degree of autonomy (self-government, self-regulation and self-collection) and endowed with their own government and constitution, which together form the Federative Republic of Brazil. There are 26 states (') and one federal district ('). The states are generally based on historical, conventional borders which have developed over time. The states are divided into municipalities A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ..., while the Federal District (Brazil), Federal District assumes the competences of both a state and a municipality. Government The government of each state of Brazil is divided into executive branch, executive, legislative branch, legislative and jud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the Atlanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphometric
Morphometrics (from Greek μορϕή ''morphe'', "shape, form", and -μετρία ''metria'', "measurement") or morphometry refers to the quantitative analysis of ''form'', a concept that encompasses size and shape. Morphometric analyses are commonly performed on organisms, and are useful in analyzing their fossil record, the impact of mutations on shape, developmental changes in form, covariances between ecological factors and shape, as well for estimating quantitative-genetic parameters of shape. Morphometrics can be used to quantify a trait of evolutionary significance, and by detecting changes in the shape, deduce something of their ontogeny, function or evolutionary relationships. A major objective of morphometrics is to statistically test hypotheses about the factors that affect shape. "Morphometrics", in the broader sense, is also used to precisely locate certain areas of organs such as the brain, and in describing the shapes of other things. Forms Three general appro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeus Springeri
Springer's sawtail catshark (''Galeus springeri'') is a species of catshark, belonging to the family Scyliorhinidae, found in waters deep off the islands of the Antilles, from Cuba to the Leewards. A small, slim-bodied species reaching a length of , the Springer's sawtail catshark can be identified by its color pattern of horizontal dark stripes in front of the first dorsal fin, and dark dorsal saddles behind. It is additionally characterized by the presence of saw-toothed crests, made of enlarged dermal denticles along both the dorsal and the ventral edges of the caudal fin. The Springer's sawtail catshark is oviparous. Taxonomy The Springer's sawtail catshark was originally regarded as the striped color morph of the Antilles catshark (''G. antillensis'', formerly ''G. arae antillensis''). The first known specimen had resided in the National Museum of Natural History for over 20 years, until an artifact of preservation revealed the distinctive ventral dermal denticle cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeus Cadenati
The longfin sawtail catshark (''Galeus cadenati'') is a rare, little-known species of catshark, part of the family Scyliorhinidae. Once thought to be a subspecies of the roughtail catshark (''G. arae'') along with the Antilles catshark (''G. antillensis''), it inhabits deep water off the Caribbean coasts of Panama and Colombia. This slim-bodied species has a marbled dorsal color pattern and a prominent crest of enlarged dermal denticles along the dorsal edge of its caudal fin. It can be distinguished from similar species by its relatively longer anal fin and small adult length of under . The longfin sawtail catshark is oviparous. Taxonomy Renowned shark expert Stewart Springer described the longfin sawtail catshark in a 1966 issue of the ''United States Fish and Wildlife Service Fishery Bulletin'', based on a long female collected off Panama on May 30, 1962. He named the species after French zoologist Jean Cadenat, who described the similar African sawtail catshark (''G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeus Arae
The roughtail catshark or marbled catshark (''Galeus arae'') is a common species of catshark, part of the family Scyliorhinidae. It is found at a depth of in the northwestern Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea, from North Carolina to Costa Rica. Individuals of different sexes and ages are segregated to some degree. A small species not exceeding in length, the roughtail catshark has a slender body with a marbled color pattern of dark saddles and spots, and a prominent crest of enlarged dermal denticles along the dorsal edge of its caudal fin. This species feeds mainly on shrimp and is oviparous. It is caught incidentally in shrimp trawls, though trawl fisheries within its range mostly do not operate at the depths it inhabits. As a result, the International Union for Conservation of Nature has listed it under Least Concern. Taxonomy John T. Nichols of the American Museum of Natural History originally described the roughtail catshark as ''Pristiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Specimen
In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set (mathematics), set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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