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Topic: Perch (volume)

	Perch - Search Results - MSN Encarta
		Perch, any of approximately 150 species of bony fishes characterized by two dorsal fins that are separate or narrowly joined.
		Ocean Perch, common name for several closely related live-bearing fishes belonging to the scorpionfish family.
		Pirate Perch, small fish similar in appearance to the perch but of a different family.
	ca.encarta.msn.com /Perch.html (180 words)

	EJPAU 1998. KORZELECKA A., BONISŁAWSKA M., WINNICKI A. STRUCTURE, SIZE AND SPATIAL DISTRIBUTION OF PERCH (PERCA ...
		Sexual maturity is attained by perch males at the age of 2-3 years, and by females - at the age of 3-4 years [32], and according to Baruš and Oliva [3] males mature at the age of 1-3 years, and females at 2-4.
		Perch spawning grounds are water areas having the bottom overgrown with a variety of sub-merged plants, and with patches of emergent vegetation.
		Diameter of perch eggs cited in the introduction is probably given for the egg with its mem-brane and the jelly envelope (Table 1).
	www.ejpau.media.pl /series/volume1/fisheries/art-05.html (3104 words)

	Rod (unit) - Wikipedia, the free encyclopedia
		The length is equal to the standardized length of the ox-goad used by medieval English ploughmen; fields were measured in acres which were one chain (four rods) by one furlong (in England, ten chains).
		Note 1: A perch is also a unit of area of land = 1 square rod, and a unit of cubic measure of stonework, usually = 16.5 feet by 1 foot by 1.5 feet = 24.75 cubic feet.
		perch (volume) for a related unit of volume with the same name.
	en.wikipedia.org /wiki/Pole_(length) (303 words)

	Perch - Search Results - MSN Encarta (Site not responding. Last check: 2007-10-17)
		Ocean Perch, common name for several closely related live-bearing fishes belonging to the scorpion-fish family (Rockfish).
		Nile Perch, large, predatory freshwater fish indigenous to major river systems of north Africa.
		Nile perch are silver in appearance, with a...
	uk.encarta.msn.com /Perch.html (168 words)

	perch (1) definition - Dictionary - MSN Encarta
		She perched on the edge of the desk.
		The child was perched on a high stool.
		A pair of doves perched on the apple tree.
	encarta.msn.com /encnet/features/dictionary/DictionaryResults.aspx?refid=1861724924 (336 words)

	CBFS related publications - 1942 - 1996 (Site not responding. Last check: 2007-10-17)
		Hofmann, P. Consumption of young yellow perch (Perca flavescens) by a walleye (Stizostedion vitreum) population in Oneida Lake.
		Clady, M. Crustacean zooplankton populations and concurrent survival of larval yellow perch in Oneida Lake.
		Forney, J. Reconstruction of yellow perch (Perca flavescens) cohorts from examination of walleye (Stizostedion vitreum vitreum) stomachs.
	www.dnr.cornell.edu /fieldst/42_96pubs.htm (3748 words)

	HBW. Family Pages: Family Texts (Sample Text) (Site not responding. Last check: 2007-10-17)
		Their actions when perched consist either of rapid "about-faces", so sudden that the foot movements are hard to see, or apparent "slides" along the perch, either sideways or backwards, by means of very fast, short steps, again too rapid to be followed by the unaided eye.
		The perches may be as little as 2-3 m apart and in the same tree, or 10 m or more apart and in adjacent trees.
		The dominant male, perched at some height near his mating perch, calls at regular intervals until he is joined by one of his subordinates.
	www.hbw.com /hbw/volume9/family9.html (13049 words)

	AnZF 33(3–4), 1996
		The size of the mature perch females were estimated from the width of the egg strands that were laid on their spawning grounds.
		Size distributions of cohorts of pikeperch and perch originating from three lakes in the Netherlands were compared to test the hypothesis that skewness or bimodality within cohorts of pikeperch and perch develops especially in environments with a discontinuous size distribution of their potential food items.
		Perch did not gain an energetic advantage by migrating in a homothermal water column, but they may have gained access to copepods in addition to their main diet of benthic invertebrates.
	www.sekj.org /anz/anz3334.htm (9039 words)

	Bay Weekly: Chesapeake Outdoors/Earth Journal
		White perch are semi-anadromous spawners, meaning they live here year-round (unlike most adult rockfish, a cousin), then move into low-salinity to freshwater of large rivers in April through June to spawn.
		This is an important biological factor considering white perch are among the most pursued recreational and commercial fishes in Chesapeake waters.
		The recreational fishery for white perch is significant, especially in Maryland.
	www.bayweekly.com /year03/issuexi36/chesoutxi36.html (610 words)

	Robert Rosand - Acorn Ornaments
		With the perch held in the chuck, use a small round skew to "peel" down to about a 1/16" diameter (Photos K and L).
		The holes for the birdhouse entry and the perch should be appropriate to the size of the finished piece.
		It's very easy to turn a perch that's simply too large for the finished piece or to drill an entry hole that is either too large or too small or to make a cap that just doesn't look like it belongs.
	www.rrosand.com /articles/18-3.html (1657 words)

	DNR Withdraws Yellow Perch Fisheries Regulations
		The yellow perch plan was adopted in 2002 with input from a diverse group of stakeholders representing recreational and commercial yellow perch fishermen.
		Slot limits for the statewide yellow perch commercial fishery and a 9-inch limit for the recreational fishery were implemented in 2000.
		The success of the healthy yellow perch fishery in the Upper Chesapeake Bay had also provided a great deal of information on potentials for growth and reproduction and the effects of a well regulated fishery.
	www.dnr.state.md.us /dnrnews/pressrelease2006/022406.html (630 words)

	Primate Perch Installation (Site not responding. Last check: 2007-10-17)
		Installing a perch is a bigger problem with squeeze-back than with standard cages, because the perch can interfere with the restraint mechanism.
		With both the door and the front of the cage open, we inserted the perch in the sleeve; then we closed the front of the cage and fit the proximate end of the perch into the socket.
		Two natural parameters - not the bar-spacing of the squeeze-back - determine the diameter of the perch: the animal's weight (the perch should not bend under the animal's weight) and the diameter for a comfortable sit (the animal should be able to balance on the perch without having to hold the cage ceiling or walls).
	www.awionline.org /lab_animals/biblio/la-an.htm (510 words)

	Spawning the Pirate Perch, One More Time, by Ray Katula
		Cave fishes of the family Amblyopsidae retain their eggs within their gills, and, as with pirate perch, their anus is located in the throat near the gills.
		The pirate perch were fed a large variety of items, but primarily earthworms, whiteworms, and live adult brine shrimp.
		In the future, for others who may attempt spawning the pirate perch, it would be a good idea to leave the eggs with the spawning female to see if she provides eggs and young with any protection.
	www.nanfa.org /articles/acpirateperch.shtml (1042 words)

	DazeCars, Roller Spring Perches
		One might argue that a coil spring provides all the pressure needed to turn the perch and that a smooth turning radius is not necessary, but the problem is that the force applied, from suspension travel, to move the perch prior to the rubber bushing flexing is absorbed by flexing of the spring and shock.
		If the perch being modified is an original, then the shaft should be relatively easy to remove from the center assembly once the case has been split.
		This is accomplished by placing two pry bars or punches in the shock mounting holes of the perch and then use a bench vice to squeeze the two shafts together and, thus, bend the journal.
	home.bresnan.net /~dazed/opentracker (3970 words)

	Laboratory Primate Newsletter, Volume 32, Number 4
		Perch Phase : On day 1, a PVC perch (four 2.6 x 36 cm tubes connected in parallel) was attached with snap hooks to the back of the cage 27 cm from the floor, after routine cage washing.
		Perch use by cage level and day since introduction: Monkeys in lower cages tended to sit on the perch more than those in upper cages (lower mean = 15.6 +/- 3.5 SE sec/min, upper mean = 8.5 +/- 3.3 SE sec/min), but overall the cage level factor was not statistically significant (P = 0.16, ANOVA).
		Perch use increased significantly over the first 3 days, but 6 monkeys did not sit on the perch until the study was over.
	www.brown.edu /Research/Primate/lpn32-4.html (17569 words)

	Ontario Fishing Network Newsletter - Ice Fishing for Perch
		Perch through the ice is one of life's great pleasures.
		Perch gang up in big schools during the winter, and will spend the days cruising in search of food.
		Perch will often be found throughout the entire water column, so it is often a good idea to experiment with depths.
	www.ontariofishing.net /news/newsfeb2001-1.html (540 words)

	Bay Weekly: The Sporting Life
		Perch under nine inches aren’t really worth keeping, but this time of year you shouldn’t have any problems easily besting this size.
		I have eaten perch stored both ways that were over nine months old; they retained excellent flavor.
		Perch are jumbos one day only to be replaced by their junior cousins the next.
	www.bayweekly.com /year06/issuexiv48/cheslife48.html (818 words)

	Photoexcitation of a Volume Plasmon in Buckyballs
		Combining their experimental observations and theoretical calculations, the collaborators interpreted the second resonance, occurring at a photon energy of 38 eV, as a volume plasmon, corresponding to a radial compression of the electron density, as opposed to the back-and-forth motion of a surface plasmon.
		The excitation of a volume plasmon in a solid conducting sphere is dipole forbidden, leading to its suppression in photoabsorption by metal clusters.
		However, a volume plasmon is possible in C-60 because of its shell geometry.
	www-als.lbl.gov /als/science/sci_archive/103plasmon.html (943 words)

	Terra: Tutte le informazioni su Terra su Encyclopedia.it
		Nonostante la temperatura del nucleo interno sia maggiore di quello esterno, esso è solido perché la pressione è ancora maggiore e fa alzare il punto di liquefazione del ferro notevolmente.
		Si riteneva che la Terra fosse piatta perché non si conosceva la natura centrale della forza di gravità che permette di avere il cielo sempre come alto e il centro della Terra come basso e quindi superare l'apparente paradosso che si dovesse camminare con la testa rivolta verso il "basso" dall'altra parte della Terra.
		Si ritenne molto più a lungo che la Terra fosse al centro dell'universo perché si ha l'impressione che siano tutti gli altri corpi celesti a girare intorno ad essa; inoltre osservando il cielo di notte si ha l'impressione che sia una volta incurvata sulla Terra, illusione dovuta all'immensità dello spazio.
	www.encyclopedia.it /t/te/terra.html (2650 words)

	Proceedings of the symposium on post-harvest fish technology / Compte rendu du Colloque sur la technologie du poisson ...
		Research on the utilization of Nile perch now indicates that it is time to stop regarding this fish as a pest but rather as one offering great nutritive and financial possibilities.
		Although Nile perch today represents over half of the total catch volume in the country, the present situation is unlikely to continue in the long term since the predator-prey equilibrium could gradually stabilize with an attendant reduction in the Nile perch biomass.
		Currently, Nile perch oil is made by frying visceral fat obtained manually from the belly cavity, and is used as cooking oil in traditional frying.
	www.fao.org /docrep/005/T0606B/T0606B06.htm (4639 words)

	measurement
		perches in a rood and 160 perches in an acre.
		A perch of masonry is the volume of a stone wall one perch (16.5 feet) long, 18 inches high,
		Although rods and perches of other lengths were used locally in Britain, the king's perch eventually prevailed.
	www.geog.umn.edu /faculty/squires/research/RealProp/survey/measurement.html (3497 words)

	Pearl Perch, Glaucosoma scapulare
		The Pearl Perch can be recognised by its supracleithrum, the bone that projects as a blue-fl to grey bony shield from under the upper operculum.
		The Pearl Perch has a robust body, a large mouth and a second dorsal fin which is higher than the first.
		The Pearl Perch is a commercial species, which is mostly caught on lines.
	www.amonline.net.au /fishes/fishfacts/fish/gscapul.htm (261 words)

	Dynamics and Species Interactions in the Commercial Fishery of the Red Lakes, Minnesota -- from Mathematica Information ...
		We subjected commercial catch-per-unit-effort (CPUE) records of walleye, yellow perch, and animal feed (composed primarily of drum) to spectral analysis.
		Walleye and yellow perch CPUE time series were significantly coherent at periods ranging from 5 to 10 yr, confirming the predator-prey relationship and common recruitment patterns of these two species.
		While drum recruitment and growth are consistent with the periodicity in the autospectrum, we find little evidence from coherencies that drum recruitment is related to the dynamics of walleye or perch populations.
	library.wolfram.com /infocenter/Articles/1446 (197 words)

	TABS Species Account TN00302
		Perch 139mm TL had a diet of mostly fish 5863.
		Also in Michigan, fish were eaten only by perch 200-349mm long, and of those taken over a rocky bottom, crayfish made up 2/3 of the food volume in size 200-349mm perch from July-September 6334.
		Characteristic changes in perch diets progresses from zooplankton to insect larvae to fish, and the major changes seem to appear around 40-60mm and 140-160mm lengths 5283,5059.
	fwie.fw.vt.edu /tn/TN00302f.htm (396 words)

	RIRDC: The New Rural Industries - A Hanbook for Farmers and Investors - abalone
		The great potential for development of the silver perch industry is in replacing some of the fish sold through retail outlets, supermarkets, clubs, hotels, plus that provided in institutions such as hospitals, nursing homes, military bases and so on, with farmed silver perch.
		Although silver perch are now displayed live in many Asian restaurants, they can be killed humanely and rapidly by placing them in an ice slurry or by Ike Jime, in which case they are then packed on ice in polystyrene boxes, labelled and transported to market.
		He developed techniques for the artificial breeding of Murray cod, golden perch, silver perch and the endangered eastern freshwater cod, and for the husbandry and intensive pond culture of silver perch.
	www.rirdc.gov.au /pub/handbook/silverperch.html (2098 words)

	Reproductive Biology and Early Life History of Fishes in the Ohio River Drainage: Percidae - Perch, Pikeperch, and ...
		This is volume 4 and covers the percidae family.
		This includes fish such as the perch, pikeperch and darters that are found not only in the Ohio but throughout much of the rest of the United States.
		Volume 4 addresses the developmental and morphological issues of Perch, Pikeperch, and Darters.
	www.floridakeysdiving.net /stuff-084931920X.html (374 words)

	Yellow Perch Fry Production and Feed Training Trial
		Commercial culture of yellow perch (Perca flavescens) is dependent on the ability to economically produce or purchase fingerlings (1 to 3 in) that have been trained to accept an artificial diet.
		Approximately 50 lb of horse manure was placed into the dry bottom of each pond to stimulate zooplankton (microscopic animals) growth, as a food source for the yellow perch fry.
		Pond water volumes were calculated before each fertilizer application, due to the continuous addition of well water.
	southcenters.osu.edu /aqua/fact/perch1.htm (1369 words)

	Endocrine Disruption and Altered Gonadal Development in White Perch (Morone americana) from the Lower Great Lakes Region (Site not responding. Last check: 2007-10-17)
		Gonadal intersex was observed in male white perch collected from the Bay of Quinte (22-44%) and Lake St. Clair (45%), although the prevalence and the extent of the intersex condition were lower relative to the 83% prevalence in white perch collected in Cootes Paradise.
		To confirm that white perch are being exposed to estrogenic substances, plasma was collected from adult white perch from Cootes Paradise and analyzed for the presence of the egg yolk protein VTG.
		In the survey of white perch from Cootes Paradise conducted in 2000, the prevalence of gonadal intersex in male fish was 83% (Table 2).
	www.ehponline.org /members/2004/6514/6514.html (5005 words)

	Units: P
		A peck is 2 gallons, 8 quarts, or 1/4 bushel.
		A perch of masonry is the volume of a stone wall one perch (16.5 feet) long, 18 inches high, and 12 inches thick.
		A perche of area is therefore equal to 0.01 arpent, about 368.007 square feet (40.8896 square yards) or 34.189 square meters.
	www.unc.edu /~rowlett/units/dictP.html (9631 words)

	Nile perch - marketing success or ecological disaster? (Site not responding. Last check: 2007-10-17)
		The Nile perch Lates niloticus is a large freshwater fish found extensively in the rivers and lakes of Africa.
		There is also some artisanal processing of Nile perch employing smoke-drying over wood fires to confer a degree of preservation for distribution to interior markets.
		As a result, in March 1997, the European Commission announced that all Nile perch imports from the region must be subject to a bacteriological examination for Salmonella and other pathogens on entry to the EU.
	www.megapesca.com /nileperch.html (2387 words)

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