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.
Sardine and pilchard are common names for various species of small, oily forage fish in the herring family Clupeidae. The term 'sardine' was first used in English during the early 15th century; a somewhat dubious folk etymology says it comes from the Italian island of Sardinia, around which sardines were once supposedly abundant.
Labidochromis caeruleus is a species of cichlid endemic to the central western coastal region of Lake Malawi in East Africa. It is also known as lemon yellow lab, the blue streak hap, the electric yellow or yellow prince, depending on the colour morph. A naturally occurring yellow-coloured variant from Lion's Cove is one of the most popular cichlids amongst aquarium hobbyists.
The azure jay is a passeriform bird of the crow family, Corvidae. It is found in the Atlantic Forest, especially with Araucaria angustifolia, in south-eastern Brazil, far eastern Paraguay and far north-eastern Argentina. It is the state bird of Paraná.
Cubiceps caeruleus, the blue fathead or cubehead, is a species of driftfish native to the Pacific and Atlantic oceans. It is a pelagic fish that can be found at depths of from 20 to 250 metres. It mostly feeds on salps. This species can reach a length of 25.6 centimetres (10.1 in) TL.
Sardinops is a monotypic genus of sardines of the family Clupeidae. The only member of the genus is Sardinops sagax. It is found in the Indo-Pacific and East Pacific oceans. Its length is up to 40 cm (16 in). It has numerous common or vernacular names, some of which more appropriately refer to subspecies, including blue pilchard, Australian pilchard, blue-bait, Californian pilchard, Peruvian Pacific sardine, South American pilchard, Chilean sardine, Japanese pilchard, Pacific sardine, and Southern African pilchard.
Champsochromis is a small genus of cichlid fishes endemic to Lake Malawi in east Africa.
The Japanese snapper is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is native to the Western Pacific Ocean.
Pseudophilautus caeruleus, commonly called blue thigh shrub frog, is a species of frogs in the family Rhacophoridae. It is endemic to Sri Lanka.
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.
Alburnus caeruleus, also known as the black spotted bleak or Tigris bleak is a species of ray-finned fish in the carp family, Cyprinidae. It is found in the Queiq River drainage and the Tigris–Euphrates river system in Iran, Iraq, Syria and Turkey.
Ecsenius caeruliventris, known commonly as the bluebelly blenny in Indonesia, is a species of combtooth blenny in the genus Ecsenius. It is a tropical blenny found in the western Pacific ocean, specifically in Sulawesi, Indonesia. Male Ecsenius caeruliventris can reach a maximum length of 2.4 centimetres, while females can reach a maximum length of 2.37 centimetres; it is one of the smallest blennies in Ecsenius. The species name means "sky-blue belly" from the Latin words caeruleus and ventris, referring to the blue abdomen on the species; the common name is derived from this. The species is most similar to its sister taxon E. shirleyae and E. bandanus.
Frontilabrus caeruleus is a species of wrasse native to the Indian Ocean waters around the Maldives. This species grows to a standard length of 9.4 cm (3.7 in). It has also been displayed in public aquaria. This species is the only known member of its genus.
Gomphosus caeruleus, the green birdmouth wrasse, is a species of wrasse belonging to the family Labridae. It can be found in the aquarium trade.
Centrolabrus melanocercus, the black-tailed wrasse, is a species of marine ray-finned fish from the wrasse family Labridae which is found in the Mediterranean Sea and the Sea of Marmara. This species was formally described in 1810 as Lutjanus melanocercus by Antoine Risso with the type locality given as Saint Hospice near Villefranche-sur-Mer on the Mediterranean coast of France. This species was regarded as a member of the genus Symphodus but meristic and behavioural data placed it closer to the rock cook than the sexually dimorphic paternal nesting fishes in Symphodus. This species prefers areas with rocks or eelgrass at depths from 1 to 25 m. It can reach 14 cm (5.5 in) in total length, though most do not exceed 11 cm (4.3 in).
Symphodus caeruleus is a species of marine ray-finned fish, a wrasse from the family Labridae. It is endemic to the Azores in the eastern Atlantic Ocean.
The emerald wrasse is a species of marine ray-finned fish, a wrasse from the family Labridae. It is endemic to the eastern Atlantic Ocean where it is found in the Macaronesian archipelagoes of the Canary Islands and Madeira, including the Savage Islands. This species was formerly thought to be found in the Azores but the specimens there were found to belong to a separate species Symphodus caeruleus.
