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Stegastes Fuscus
''Stegastes fuscus'', the dusky damselfish, is a species of bony fish in the Family (biology), family Pomacentridae found near the seabed in shallow waters on the western fringes of the Atlantic Ocean.''Stegastes fuscus'' (Cuvier, 1830) FishBase. Retrieved 2011-12-29. Description The colour of an adult dusky damselfish varies from brownish-olive to dark grey, with fine, darker-coloured, vertical stripes on the body. The fins are large with sometimes a blue rim around the edge of the dorsal and anal fins. The dorsal fin has 12 spines and 15-16 soft rays while the anal fin has two spines and 13-14 soft rays. The dusky damselfish can be distinguished from the very similar longfin damselfish (''Stegastes diencaeus'') by the shorter, less angular dorsal and anal fins. The ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Cuvier
Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French natural history, naturalist and zoology, zoologist, sometimes referred to as the "founding father of paleontology". Cuvier was a major figure in natural sciences research in the early 19th century and was instrumental in establishing the fields of comparative anatomy and paleontology through his work in comparing living animals with fossils. Cuvier's work is considered the foundation of vertebrate paleontology, and he expanded Linnaean taxonomy by grouping classes into phylum, phyla and incorporating both fossils and living species into the classification. Cuvier is also known for establishing extinction as a fact—at the time, extinction was considered by many of Cuvier's contemporaries to be merely controversial speculation. In his ''Essay on the Theory of the Earth'' (1813) Cuvier proposed that now-extinct species had been wiped out by periodic catastrophi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Territory (biology)
In ethology, territory is the sociographical area that an animal consistently defends against conspecific competition (or, occasionally, against animals of other species) using agonistic behaviors or (less commonly) real physical aggression. Animals that actively defend territories in this way are referred to as being territorial or displaying territorialism. Territoriality is only shown by a minority of species. More commonly, an individual or a group of animals occupies an area that it habitually uses but does not necessarily defend; this is called its home range. The home ranges of different groups of animals often overlap, and in these overlap areas the groups tend to avoid each other rather than seeking to confront and expel each other. Within the home range there may be a ''core area'' that no other individual group uses, but, again, this is as a result of avoidance. Function The ultimate function of animals inhabiting and defending a territory is to increase the indiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stegastes
''Stegastes'' is a genus of ray-finned fish in the family Pomacentridae. Members of this genus are marine coastal fishes except for ''S. otophorus'', which also occurs in brackish water. These fish are known by the names of damselfish, gregory and major. They are small tropical fish associated with coral and rocky reefs in the Atlantic, Indian and Pacific Oceans. They are sometimes found in the aquarium trade where they are an easy-to-keep fish, but they do not mix well with other fish of their own or other species because of their territorial habits and aggressiveness. Description The largest species in the genus is ''S. acapulcoensis'', which grows to a maximum length of , while the smallest is ''S. pictus'' at . Members of this genus are deep-bodied and laterally flattened fish with forked tails. The head has a blunt snout, a small, terminal mouth, a nostril on each side of the face, and large eyes. The lateral line does not run the full length of the body and has gaps in it. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predation
Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the host) and parasitoidism (which always does, eventually). It is distinct from scavenging on dead prey, though many predators also scavenge; it overlaps with herbivory, as seed predators and destructive frugivores are predators. Predators may actively search for or pursue prey or wait for it, often concealed. When prey is detected, the predator assesses whether to attack it. This may involve ambush or pursuit predation, sometimes after stalking the prey. If the attack is successful, the predator kills the prey, removes any inedible parts like the shell or spines, and eats it. Predators are adapted and often highly specialized for hunting, with acute senses such as vision, hearing, or smell. Many predatory animals, both vertebrate and inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graysby
The graysby (''Cephalopholis cruentata'') is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is in the family Serranidae which also includes the anthias and sea basses. It is found in the western Atlantic. It is associated with reefs and is a quarry species for commercial and recreational fisheries. Description The graysby has an oblong-shaped, robust body with a long snout and, when the mouth is closed, a slightly protruding upper jaw and a bony protuberance at the maxilla. The dorsal profile of the head is flat or slightly convex between its eyes. The majority of the teeth are movable. The dorsal fin contains 9 spines and 13-15 soft rays while the anal fin has 3 spines and 8 soft rays. The rounded peropercule has fine serrations on its margin but has no spines or notches, the operculum or gill cover has 3 flat spines, the central spine being the largest and upper spine is longer than the lowest. The caudal fin is rounded while the pelvic fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinesomus Triqueter
''Lactophrys triqueter'' also known as the smooth trunkfish, is a species of boxfish found on and near reefs in the Caribbean Sea, Gulf of Mexico and subtropical parts of the western Atlantic Ocean.Matsuura, K. (2014): Taxonomy and systematics of tetraodontiform fishes: a review focusing primarily on progress in the period from 1980 to 2014. ''Ichthyological Research'', 62 (1): 72–113. Taxonomy The names ''Lactophrys triqueter'' and ''Rhinesomus triqueter'' are synonymous. The former is accepted by the Encyclopedia of Life but the World Register of Marine Species and FishBase recognize ''Rhinesomus triqueter'' as the valid name. ''R. triqueter'' is a species of ''Lactophrys''. Description The smooth trunkfish has an angular body sheathed in plate-like scales, growing to a maximum length of , though is a more normal size. The Smooth Trunkfish is the most difficult fish to catch in the Atlantic Ocean. The body is enclosed in a bony carapace and, when viewed from the front, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Surgeonfish
The ocean surgeon or ocean surgeonfish (''Acanthurus bahianus'') is a tropical fish known to live in reefs in the western Atlantic Ocean, especially the Caribbean Sea. It is sometimes marketed fresh as a food item,Baensch, H.A. and H. Debelius (1997). ''Meerwasser atlas''. Mergus Verlag GmbH, Postfach 86, 49302, Melle, Germany. 3rd edition. but the Ocean surgeon is more often used as bait, or in tropical saltwater aquaria. Description Ocean surgeons are known by their oval bodies with uniform color (usually blue-gray to dark brown), the pale to dark marking around the eyes, and the light yellow is now found on their bodies. Most have blue or white markings on the dorsal fin, anal fin, and tail fins and pale bands can sometimes be seen at the base of their tails. They often swim in schools with other species such as the Atlantic blue tang surgeonfish. They have been recorded up to in length. Ocean surgeons have a total of 9 spines on their Dorsal fins and between 23 and 26 so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stegastes Partitus
''Stegastes partitus'' or the bicolor damselfish is a species of bony fish in the family Pomacentridae found near the sea bed on shallow rocky and coral reefs in the Caribbean Sea, the Gulf of Mexico and off the coasts of Florida.''Stegastes partitus'' (Poey, 1868) FishBase. Retrieved 2011-12-31. Description 
The bicolor damselfish can grow to about . The head and the front half of the body are dark grey or black and the rear half is pale, usually with some yellow, with regional variations in the coloring. The large dorsal fin has 12 spines and 14-17 soft rays. The anal fin is also large ...
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Thalassoma Bifasciatum
''Thalassoma bifasciatum'', the bluehead, bluehead wrasse or blue-headed wrasse, is a species of marine ray-finned fish, a wrasse from the family Labridae. It is native to the coral reefs of the tropical waters of the western Atlantic Ocean. Individuals are small (less than 110 mm standard length) and rarely live longer than two years. They form large schools over the reef and are important cleaner fish in the reefs they inhabit. Distribution and habitat ''Thalassoma bifasciatum'' is found in coral reefs of the Atlantic Ocean. Its main range includes the Caribbean Sea and the southeast area of the Gulf of Mexico. Description Young/small females and males have yellow upper bodies and white lower bodies, often with green or black lateral stripes and occasionally dark vertical bars. This coloration is known as the initial phase. They can rapidly alter the presence or intensity of their yellow color, stripes, and bars, and these color changes appear to correspond to beha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parrotfish
Parrotfishes are a group of about 90 fish species regarded as a Family (biology), family (Scaridae), or a subfamily (Scarinae) of the wrasses. With about 95 species, this group's largest species richness is in the Indo-Pacific. They are found in coral reefs, rocky coasts, and seagrass beds, and can play a significant role in bioerosion. Description Parrotfish are named for their dentition, which is distinct from other fish, including other labrids. Their numerous teeth are arranged in a tightly packed mosaic on the external surface of their jaw bones, forming a parrot-like beak with which they rasp algae from coral and other rocky substrates (which contributes to the process of bioerosion). Maximum sizes vary within the family, with the majority of species reaching in length. However, a few species reach lengths in excess of , and the green humphead parrotfish can reach up to . The smallest species is the Cryptotomus roseus, bluelip parrotfish (''Cryptotomus roseus''), which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jania (alga)
''Jania'' is a genus of red seaweeds with hard, calcareous, branching skeletons in the family Corallinaceae. Members of the genus are found in sheltered reef habitats, often in crevices or other shaded areas.Segmented algae (''Jania spp.'') Marine Species Identification Portal. Retrieved 2011-12-31. The genus name of ''Jania'' is derived from the Greek called Ianeira (or ''Janeria''). The genus was circumscribed by |
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] |
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