Cod is the common name for the demersal fish genus Gadus, belonging to the family Gadidae. Cod is also used as part of the common name for a number of other fish species, and one species that belongs to genus Gadus is commonly not called cod.
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 Clupeidae.
"Sardine" and "pilchard" are common names that refer to various small, oily forage fish in the herring family Clupeidae. The term "sardine" was first used in English during the early 15th century and may come from the Mediterranean island of Sardinia, around which sardines were once abundant.
The gwyniad is a freshwater whitefish native to Bala Lake in northern Wales.
Arctic cisco is an anadromous species of freshwater whitefish that inhabits the Arctic parts of Siberia, Alaska and Canada. It has a close freshwater relative in several lakes of Ireland, known as the pollan, alternatively regarded as conspecific with it, or as a distinct species.
The blue lyretail, also known as steel-blue aphyosemion and Gardner's killi. It is a species of killifish from Nigeria and Cameroon.
Doryrhamphus janssi, commonly known as the Janss' pipefish , is a species of pipefish belonging to the family Syngnathidae.
An anchovy is a small, common forage fish of the family Engraulidae. Most species are found in marine waters, but several will enter brackish water, and some in South America are restricted to fresh water.
Fish are very diverse animals and can be categorised in many ways. This article is an overview of some of ways in which fish are categorised. Although most fish species have probably been discovered and described, about 250 new ones are still discovered every year. According to FishBase, 34,300 species of fish had been described as of September 2020. That is more than the combined total of all other vertebrate species: mammals, amphibians, reptiles and birds.
Hypleurochilus geminatus, the crested blenny, is a species of combtooth blenny found in the western Atlantic ocean. This species grows to a length of 10 centimetres (3.9 in) TL.
Clupea is genus of planktivorous bony fish belonging to the family Clupeidae, commonly known as herrings. They are found in the shallow, temperate waters of the North Pacific and the North Atlantic oceans, including the Baltic Sea. Three species of Clupea are recognized. The main taxa, the Atlantic herring and the Pacific herring may each be divided into subspecies. Herrings are forage fish moving in vast schools, coming in spring to the shores of Europe and America, where they form important commercial fisheries.
Atherinopsis californiensis, the jack silverside or jacksmelt, is a species of neotropical silverside native to the Pacific coast of North America from Oregon, United States to southern Baja California, Mexico. This species grows to 45 cm (18 in) in total length and is important commercially as a source of human food. It is the only known member of its genus. The adults occur in inshore areas, such as bays. They form schools. This species is a demersal spawners in inshore habitats, it is oviparous and the larvae are planktonic, living at the very surface of the water and feeding on phytoplankton. The eggs are attached to one another and to the substrate by adhesive filaments in the chorion.
Fundulopanchax is a genus of killifish living in near-coastal fresh water streams and lakes in Western Africa. All species were previously biologically classified as members of the genus Aphyosemion, with the exception of Fundulopanchax avichang, F. gresensi and F. kamdemi, which were all scientifically described after the major revision of the Aphyosemion complex.
The emerald aphyosemion is a species of killifish, endemic to the lower Cross River basin in Nigeria. It is a coastal rainforest fish which lives in small streams and ponds. It prefers a temperature of around 75 °F (24 °C), and a slightly acidic pH around 6–7. The specific name honours the Danish count, army colonel, explorer and ichthyologist Jørgen J. Scheel (1916–1989).
Kribi killi is a species of African killifish that mainly inhabits swamps and turbid parts of brooks in the coastal rainforest. The species is endemic to Cameroon. Adult fish reach a maximum length of approximately 9 centimetres. Breeding pairs of the species most often lay their eggs over the bottom, but occasionally also among the roots of free-floating aquatic plants. Pairs stay close for some time, with just a few eggs being produced each day. It is sometimes kept in captivity but difficult to maintain and breed in an aquarium.
Andamia expansa is a species of combtooth blenny which is known from a few specimens from the eastern Indian Ocean, with the type being collected in the Andaman Islands. The IUCN rate it as Data Deficient because its taxonomy is unclear. It forms pairs and lays adhesive eggs on the substrates.
Andamia pacifica is a species of combtooth blenny which is found in the Kerama Islands near Okinawa, Japan and is probably distributed along the Ryukyu Island chain. It is oviparous, laying adhesive eggs on the substrate, forming distinct pairs.
