000 02076cam  2200337za 4500
0019.849775
003CaOODSP
00520221107154010
007cr |||||||||||
008180110s1986    onca|||fob   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aEn13-5/86-140E-PDF
1001 |aPainter, Scott.
24510|aLong-term effects of mechanical harvesting on Eurasian watermilfoil |h[electronic resource] / |cby Scott Painter.
260 |aBurlington, Ont. : |bAquatic Ecology Division, National Water Research Institute, Canada Centre for Inland Waters, |c[1986].
300 |a[21] p. : |bill.
4901 |aNWRI ; |v# 86-140
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references: p. 14-17.
5200 |a"Eurasian watermilfoil is a nuisance aquatic invaded plant which has invaded many lakes and rivers in Canada. Mechanical harvesting is generally agreed to be the most ecologically sound control method but is criticized because multiple harvests may be required each growing season and no long-term effect on regrowth may be apparent. Environment Canada’s research has examined the short and long-term effects of mechanical harvesting. A previous NWRI report (#85-36) outlined the observed response of milfoil to 19 different harvesting strategies. The most effective cutting scenario was a June/September double cut. A four year long-term harvesting experiment using the June/September double cut strategy was initiated in 1981"--Management perspective.
546 |aIncludes abstract and management perspective in French.
69207|2gccst|aWater plants
69207|2gccst|aLakes
69207|2gccst|aInvasive species
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada)
830#0|aNWRI contribution ;|vno. 86-140|w(CaOODSP)9.844121
85640|qPDF|s1.43 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En13-5-86-140-eng.pdf