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The remora (/ ˈ r ɛ m ə r ə /), sometimes called suckerfish or sharksucker, is any of a family (Echeneidae) of ray-finned fish in the order Carangiformes. [4] Depending on species, they grow to 30–110 cm (12–43 in) long.
A planktivore is an aquatic organism that feeds on planktonic food, including zooplankton and phytoplankton. [1] [2] Planktivorous organisms encompass a range of some of the planet's smallest to largest multicellular animals in both the present day and in the past billion years; basking sharks and copepods are just two examples of giant and microscopic organisms that feed upon plankton.
E. naucrates is a medium-sized fish which can grow up to 110 cm (43 in) length. [9] Its body is elongated and streamlined, and its lower jaw is clearly prognathic (it projects forward well beyond the upper jaw). [3] The jaws, vomer and tongue have villiform teeth. [3]
The pilot fish's relationship with sharks is a mutualist one; the pilot fish gains protection from predators, while the shark gains freedom from parasites. [22] It was often said by sailors that sharks and pilot fish share something like a "close companionship"; [ 23 ] there were even tales of this fish following ships which had captured "their ...
They also seem to consume smaller species of sustenance that are in front of them. Barracuda species are often seen competing against mackerel, needle fish and sometimes even dolphins for prey. [3] Barracudas are usually found swimming in saltwater searching for schools of plankton-feeding fish.
Rainbow sharks are tank-bottom and aquarium-surface cleaners. Being bottom- and mid-level dwellers, they consume leftover fish food, but also eat the algae growing off surfaces. They are known to be peaceful with their own kind in the wild but have been known to be aggressive with one another if kept together in a tank.
Spinner sharks feed primarily on small bony fish, ... and 60 cm (24 in) off South Africa. [10] Spinner sharks are relatively fast-growing sharks: 30 cm (12 in) per ...
Guitarfish have a body form intermediate between those of sharks and rays. The tail has a typical shark-like form, but in many species, the head has a triangular, or guitar-like shape, rather than the disc-shape formed by fusion with the pectoral fins found in other rays.