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These elongated, predatory fish are distinguished by their long dorsal fins, large mouths, and shiny teeth. They breathe air with gills, which allows them to migrate short distances over land. They have suprabranchial organs, which are primitive forms of labyrinth organs, that develop when they grow older. [1]
The southern bluefin tuna is a predatory organism with a high metabolic need. These are pelagic animals, but migrate vertically through the water column, up to 2,500 m (8,200 ft) in depth. They also migrate between tropical and cool temperate waters in the search for food. [ 4 ]
While surveying the cave, researchers said they found 11 fish with transparent fins living inside. The fish turned out to be a new species: Balitora anlongensis, or the Anlong stone loach.
Lancetfish possess a long and very high dorsal fin, soft-rayed from end to end, with an adipose fin behind it. The dorsal fin has 41 to 44 rays and occupies the greater length of the back. This fin is rounded in outline, about twice as high as the fish is deep, and can be depressed into a groove along the back.
He faces 12 criminal charges, including official misconduct and public indecency.
The new species doesn’t have lateral lacrimal or second preopercular spines, meaning a spine on the head and the front of the gills. The fish also has much longer lower pectoral-fin rays, the ...
The shape, size, position and colour of the dorsal fin varies with the type of billfish, and can be a simple way to identify a billfish species. For example, the white marlin has a dorsal fin with a curved front edge and is covered with black spots. The huge dorsal fin, or sail of the sailfish is kept retracted most of the time.
Neopterygii (from Greek νέος neos 'new' and πτέρυξ pteryx 'fin') is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant fishes, and over half of all living vertebrate species. [2]