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Aquatic weed harvester. An aquatic weed harvester, also known as a water mower, [1] [2] mowing boat and weed cutting boat, [3] is an aquatic machine specifically designed for inland watercourse management to cut and harvest underwater weeds, reeds and other aquatic plant life. [4] The action of removing aquatic plant life in such a manner has ...
1938. Type. woodcut. Dimensions. 43.5 cm × 43.9 cm (17.1 in × 17.3 in) Sky and Water I is a woodcut print by the Dutch artist M. C. Escher first printed in June 1938. The basis of this print is a regular division of the plane consisting of birds and fish. Both prints have the horizontal series of these elements —fitting into each other like ...
Gyotaku. Gyotaku (魚拓, from gyo "fish" + taku "stone impression") is the traditional Japanese method of printing fish, a practice which dates back to the mid-1800s. This form of nature printing, where ink is applied to a fish which is then pressed onto paper, was used by fishermen to record their catches, but has also become an art form of ...
Boti. Chulesi, Boti, dao, da, aruvamanai, chulesi, pavshi, vili, morli or pirdai is a cutting instrument, [ 1] most prevalent in Nepal, Maharashtra, South India, Bihar, Pakistan and the Bengal region, [ 2] Bihar, Tripura, the Barak Valley of Assam . It is a long curved blade that cuts on a platform held down by the foot.
Sustainable fish farming practices do not use dangerous chemicals, hormones, or antibiotics on their fish, which benefits the surrounding marine environment, and the human consumers themselves. In addition to this, sustainable fish farming is able to control what their fish eat: farmers will take care to keep the fish's diet healthy and balanced.
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.
Fish preservation is the method of increasing the shelf life of fish and other fish products by applying the principles of different branches of science in order to keep the fish, after it has landed, in a condition wholesome and fit for human consumption. [ 1][ 2] Ancient methods of preserving fish included drying, salting, pickling and smoking.
Eyestalk ablation. The eyestalks of female shrimp are often removed (ablated) to improve reproduction. The red dotted line indicates the location on a shrimp where the eye stalk is cut or cauterised during ablation. Eyestalk ablation is the removal of one (unilateral) or both (bilateral) eyestalks from a crustacean.