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Turbot is highly prized as a food fish for its delicate flavour, and is also known as brat, breet, britt, or butt. It is a valuable commercial species, acquired through aquaculture and trawling. It is a valuable commercial species, acquired through aquaculture and trawling.
Human uses of birds have, for thousands of years, included both economic uses such as food, and symbolic uses such as art, music, and religion. In terms of economic uses, birds have been hunted for food since Palaeolithic times. They have been captured and bred as poultry to provide meat and eggs since at least the time of ancient Egypt.
Alaska pollock is commonly used in the fast food industry in products such as McDonald's Filet-O-Fish sandwich, [44] [45] Burger King Big Fish Sandwich, Wendy's Crispy Panko Fish Sandwich, [46] Arby's King's Hawaiian Fish Deluxe, [47] Arby's Crispy Fish Sandwich, [48] Arby's Spicy Fish Sandwich, [49] Long John Silver's Baja Fish Taco, [50 ...
Salmon and salmon roe have only recently come into use in making sashimi (raw fish) and sushi, with the introduction of parasite-free Norwegian salmon in the late 1980s. [10] Ordinary types of cooked salmon contain 500–1,500 mg DHA and 300–1,000 mg EPA (two similar species of fatty acids) per 100 grams [11]
It is most prominent in a number of migratory bird species. Hyperphagia occurs when fat deposits need to be built up over the course of a few days or weeks, for example in wintering birds that are preparing to start on their spring migration , or when feeding habitat conditions improve for only a short duration.
Bird migration is controlled primarily by day length, signalled by hormonal changes in the bird's body. [20] On migration, birds navigate using multiple senses. Many birds use a sun compass, requiring them to compensate for the sun's changing position with time of day. [21] Navigation involves the ability to detect magnetic fields. [22]
Studies in bird behaviour include the use of tamed and trained birds in captivity. Studies on bird intelligence and song learning have been largely laboratory-based. Field researchers may make use of a wide range of techniques such as the use of dummy owls to elicit mobbing behaviour, and dummy males or the use of call playback to elicit ...
Animal navigation is the ability of many animals to find their way accurately without maps or instruments. Birds such as the Arctic tern, insects such as the monarch butterfly and fish such as the salmon regularly migrate thousands of miles to and from their breeding grounds, [1] and many other species navigate effectively over shorter distances.