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A fish wheel, also known as a salmon wheel, [1] is a device situated in rivers to catch fish which looks and operates like a watermill. However, in addition to paddles, a fish wheel is outfitted with wire baskets designed to catch and carry fish from the water and into a nearby holding tank. The current of the river presses against the ...
A fish trap is a trap used for catching fish and other aquatic animals of value. Fish traps include fishing weirs, cage traps, fish wheels and some fishing net rigs such as fyke nets. [1] The use of traps are culturally almost universal around the world and seem to have been independently invented many times.
Ichthys was adopted as a Christian symbol.. The ichthys or ichthus (/ ˈ ɪ k θ ə s /), from the Greek ikhthū́s (ἰχθύς, 1st cent.AD Koine Greek pronunciation: [ikʰˈtʰys], "fish") is (in its modern rendition) a symbol consisting of two intersecting arcs, the ends of the right side extending beyond the meeting point so as to resemble the profile of a fish.
Water wheel. A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets arranged on the outside rim forming the driving car.
Ashtamangala: first row (left to right): parasol, pair of golden fish, conch; second row: treasure vase, lotus; Last row: infinite knot, victory banner and wheel. The Ashtamangala ( Sanskrit: अष्टमङ्गल, romanized : Aṣṭamaṅgala) is a sacred suite of Eight Auspicious Signs featured in a number of Indian religions such as ...
Cuttlefish eat small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish. Their predators include dolphins, larger fish (including sharks), seals, seabirds, and other cuttlefish. The typical life expectancy of a cuttlefish is about 1–2 years. Studies are said to indicate cuttlefish to be among the most intelligent invertebrates.
Helicoprion is an extinct genus of shark -like [1] eugeneodont fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls", which in life were embedded in the lower jaw. As with most extinct cartilaginous fish, the skeleton is mostly unknown. Fossils of Helicoprion are known from a 20 ...
The rotifers ( / ˈroʊtɪfərz /, from the Latin rota, "wheel", and -fer, "bearing"), commonly called wheel animals or wheel animalcules, [1] make up a phylum ( Rotifera / roʊˈtɪfərə /) of microscopic and near-microscopic pseudocoelomate animals . They were first described by Rev. John Harris in 1696, and other forms were described by ...