Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.
Herring are forage fish, mostly belonging to the family of Clupeidae.
Pearlfish are marine fish in the ray-finned fish family Carapidae. Pearlfishes inhabit the tropical waters of the Atlantic, Indian, and Pacific Oceans at depths to 2,000 m (6,600 ft), along oceanic shelves and slopes. They are slender, elongated fish with no scales, translucent bodies, and dorsal fin rays which are shorter than their anal fin rays. Adults of most species live symbiotically inside various invertebrate hosts, and some live parasitically inside sea cucumbers. The larvae are free living.
The brasilia lyrefin is a species of fish in the family Aplocheilidae. It is endemic to Brazil.
Cynolebias is a genus of freshwater annual killifish in the family Rivulidae. They are endemic to northeastern Brazil, generally in temporary waters such as ponds in the Caatinga and adjacent regions. By far the highest species richness is in the São Francisco River basin, but there are also species east and north of this system, and west as far as the Tocantins River basin. Many species have rather small distributions and some are highly threatened.
The marbled pearlfish is a species of killifish in the family Rivulidae. This threatened species is found in temporary channels within dense Atlantic rainforest, in the floodplains of rivers draining into the Baía de Guanabara, near the city of Rio de Janeiro in southeastern Brazil. It reaches up to 3 cm (1.2 in) in total length.
Leptolebias opalescens, also known as the opal pearlfish is a species of killifish in the family Aplocheilidae endemic to Brazil. This species was described as Cynolebias opalescens by George S. Myers in 1942 with the type locality given as the base of the Serra do Petrópolis, near Imbarié in the municipality of Duque de Caxias, Rio de Janeiro.
Leptolebias splendens, also known as the Splendid pearlfish is a species of killifish in the family Rivulidae endemic to Brazil, in the vicinity of Rio de Janeiro. This species was described as Cynolebias splendens in 1942 by George S. Myers with the type locality given as water holes or ponds along the foot of the Serra de Petropolis in Rio de Janeiro State. Deforestation and urbanisation led to the species disappearance from the area of its type locality and it was thought to be extinct but it was rediscovered 5 kilometres (3.1 mi) from the type locality some 70 years after the last known previous record.
Fuxian Lake stretches out through Chengjiang, Jiangchuan and Huaning Counties in Yunnan Province, spanning an area of 212 square kilometers. The lake is ranked third-largest in Yunnan, after Dian Lake and Erhai Lake. The deepest lake in Yunnan, it is 155 meters deep at its greatest depth. It is also the third-deepest fresh water lake in China, after Tianchi and Kanas Lake.
The worm pearlfish is an eel-like fish in the family Carapidae.
Austrolebias bellottii, the Argentine pearlfish, is a species of killifish from the family Rivulidae which occurs in the basins of the Paraná River and Uruguay River, in Argentina and Uruguay. This species was described as Cynolebias bellottii by the Austrian ichthyologist Franz Steindachner in 1881 from types collected at La Plata, Argentina. The specific name honours the Italian biologist and paleontologist Cristoforo Bellotti (1823-1919), who supplied Steindachner with specimens from his collection at Museo Civico di Storia Naturale di Milano. It is the type species of the genus Austrolebias.
The star pearlfish, Carapus mourlani, is a species of slender, ray-finned fish in the family Carapidae. It normally lives inside a starfish or a sea cucumber.
Austrolebias adloffi is a species of fish that can be found in the Santa Catarina region in Brazil.
Simpsonichthys is a genus of killifish from the family Rivulidae the species of which are endemic to temporary freshwater habitats like ponds in the upper Paraná, upper Araguaia, upper Jequitinhonha and São Francisco basins on the central Brazilian Plateau. They are small annual killifish that reach up to 5.5 cm (2.2 in) in standard length.
Holothuria leucospilota, commonly known as the black sea cucumber or black tarzan, is a species of marine invertebrate in the family Holothuriidae. It is placed in the subgenus Mertensiothuria making its full scientific name Holothuria (Mertensiothuria) leucospilota. It is the type species of the subgenus and is found on the seabed in shallow water in the Indo-Pacific.
The pinhead pearlfish, Encheliophis boraborensis, is a species of slender, ray-finned fish in the family Carapidae found in the tropical Indo-Pacific Ocean; it normally lives inside the body cavity of a sea cucumber such as the pineapple sea cucumber or the leopard sea cucumber.
The silver pearlfish, Encheliophis homei, is a species of eel-like fish in the family Carapidae. This pearlfish lives inside the coelom of sea cucumbers such as Bohadschia argus, Thelenota ananas , and Stichopus chloronotus. It is native to tropical and subtropical parts of the Indo-Pacific Ocean.
Nematolebias whitei, the Rio pearlfish, is a species of killifish from the family Rivulidae. It is endemic to Brazil where it is found in the Laguna de Araruama basin, Das Ostras River basin and in coastal plains in the vicinity of the mouth of São João River in Rio de Janeiro State. It was introduced to California in the 20th Century but they did not become established there.
Onuxodon fowleri is a species of pearlfish first described by Smith, 1955. Onuxodon fowleri is part of the genus Onuxodon and the subfamily Carapinae. No subspecies are listed in the Catalog of Life.
Echiodon drummondii, sometimes called Drummond's echiodon or Drummond's pearlfish, and in Ireland simply called the pearlfish, is a species of fish in the family Carapidae (pearlfish).
