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External anatomy of a bony fish (Hector's lanternfish): 1. operculum (gill cover), 2. lateral line, 3. dorsal fin, 4. adipose fin, 5. caudal peduncle, 6. caudal fin, 7. anal fin, 8. photophores, 9. pelvic fins (paired), 10. pectoral fins (paired) Internal anatomy of a bony fish. Fish anatomy is the study of the form or morphology of fish. It ...
The Tale of the Fisherman and the Fish. The fairy tale commemorated on a Soviet Union stamp. The Tale of the Fisherman and the Fish (Russian: «Сказка о рыбаке и рыбке», romanized: Skazka o rybake i rybke) is a fairy tale in verse by Alexander Pushkin, published 1835. The tale is about a fisherman who manages to catch a ...
Reece-Fish. The Reece-Fish is a variable choke, [citation needed] side- or downdraft design, with few moving parts to wear or adjust. To change from side-draft to downdraft, the installer simply rotates the float chamber to suit the carburetor orientation. The engine tuner David Vizard rated this carburetor highly in his book Tuning the A ...
The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]
Gills allow fish to breathe underwater. The fish draws oxygen-rich water in through the mouth (left). It then pumps it over gills so oxygen enters the bloodstream, and allows oxygen-depleted water to exit through the gill slits (right) Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon ...
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.
Fishing weir. A fishing weir, fish weir, fishgarth[1] or kiddle[2] is an obstruction placed in tidal waters, or wholly or partially across a river, to direct the passage of, or trap fish. A weir may be used to trap marine fish in the intertidal zone as the tide recedes, fish such as salmon as they attempt to swim upstream to breed in a river ...
[citation needed] There is a wine cup, dating from c. 500 BC, that shows a boy crouched on a rock with a fishing-rod in his right hand and a basket in his left. In the water below there is a rounded object of the same material with an opening on the top. This has been identified as a fish-cage used for keeping live fish, or as a fish-trap.