The correct spelling of the species of fish commonly referred to as the "lookdown fish" is "lookdown". The word is pronounced /ˈlukdaʊn/ (LOOK-down) in IPA phonetic transcription. The term "lookdown" likely originated from the fish's behavior of looking down at its prey while swimming. These fish are known for their flat, silver bodies and ability to change color to blend in with their surroundings. They inhabit shallow coastal waters and are a popular catch among recreational anglers.
The term "lookdown fish" refers to a species of fish scientifically known as Selene vomer, belonging to the family Carangidae. This marine fish is predominantly found in the warm coastal waters of the western Atlantic Ocean, ranging from the Gulf of Maine down to South America. Its distinctive features include a laterally compressed body with a highly reflective silver coloration, which aids in camouflage and protection against predators.
The lookdown fish is characterized by a deeply forked tail, a small mouth, and a slightly arched long dorsal fin. It typically grows to an average length of 10-20 inches, although individuals of exceptional sizes may exceed 2 feet. As indicated by its name, the lookdown fish possesses notably large eyes that are positioned high on its head. This adaptation enables it to keep a constant watch for potential threats from above.
Living in coastal waters, lookdown fish are known to form large schools composed of individuals of similar size. They are primarily scavengers, feeding on a range of small invertebrates, crustaceans, and plankton. In terms of behavior, these fish are known to be rather shy and prefer to remain close to the water's surface or in shallow depths.
Due to their striking appearance, lookdown fish are often sought after by recreational fishermen and are regarded as prized catches. They are also popular inhabitants of public aquariums, showcasing their unique reflective silver scales and captivating overall appearance.
The word lookdown fish is derived from the combination of two elements: look and down which are descriptive of the fish's behavior and appearance.
Look refers to the action of observing or viewing something visually, while down indicates a lower position or direction. The fish gets its name because it often appears to be looking downward due to the position of its eyes, which are situated high on its head. This downward gaze gives the fish a distinct appearance and behavior, hence the name lookdown fish.