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The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.
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The pumpkinseed (Lepomis gibbosus), also referred to as sun perch, [4] pond perch, common sunfish, punkie, sunfish, sunny, and kivver, is a small to medium–sized freshwater fish of the genus Lepomis (true sunfishes), from the sunfish family (Centrarchidae) in the order Centrarchiformes. It is endemic to eastern North America.
Latitudinal variability in age, growth rates, and size have been observed among populations of yellow perch, likely resulting from differences in day length and annual water temperatures. In many populations, yellow perch often live 9 to 10 years, with adults generally ranging 4–10 in (10–25 cm) in length.
The maximum load of organisms that can be cultured in a raceway system depends on the species, and particularly on the size of the species. For trout, stocking rates of 30 to 50 kg/m 3 are normal at the end of a rearing cycle, while for marine species, such as sea bass and sea bream, the achievable load is lower, between 15 and 20 kg/m 3 .
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Medieval fish pond still in use today at Long Clawson, Leicestershire. Records of the use of fish ponds can be found from the early Middle Ages. "The idealized eighth-century estate of Charlemagne's capitulary de villis was to have artificial fishponds but two hundred years later, facilities for raising fish remained very rare, even on monastic estates.".
The surveyor is assisted by a chainman. A ranging rod (usually a prominently coloured wooden pole) is placed in the ground at the destination point. Starting at the originating point the chain is laid out towards the ranging rod, and the surveyor then directs the chainman to make the chain perfectly straight and pointing directly at the ranging ...
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23625 US-23, Circleville, OH · Directions · (740) 474-3874