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040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
043 |an-cn---
0861 |aEn13-5/90-95E-PDF
1001 |aSallenave, Rossana Mary,‏‎ |d1961-‏ |eauthor.
24510|aSecondary production of benthic stream invertebrates in agricultural watersheds with different land management practices / |cby R.M. Sallenave and K.E. Day.
264 1|aBurlington, Ontario : |bCanada Centre for Inland Waters, National Water Research Institute, Rivers Research Branch ; |aGuelph, Ontario : |bUniversity of Guelph, Department of Environmental Biology, |cNovember 1990.
300 |a1 online resource (21 pages, 12 unnumbered pages) : |bmaps, graphs.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |v90-95
500 |a"RRB 90-61."
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (pages 16-20).
5203 |a"Annual secondary production of four coexisting caddisfly species (Trichoptera; Hydropsychidae: Hydropsyche spp.) was estimated in two adjacent branches of Kintore Creek, Ontario, Canada. The west branch was located in a demonstration watershed where conservation tillage was practiced i.e., mulch-finishing of row crops, planting of forage and cover crops, some no-till practices, etc. Conventional agricultural land management occurred in the watershed which drained into the east branch i.e., corn-wheat-alfalfa rotation with fall moldboard ploughing. Production estimates and densities of caddisflies were consistently higher in the watershed where conservation tillage was practiced"--Abstract.
546 |aIncludes abstract and executive summary in English and French.
69207|2gccst|aWatersheds
69207|2gccst|aLand management
69207|2gccst|aConservation
7001 |aDay, Kristin E. |q(Kristin Elizabeth)|eauthor.
7101 |aCanada. |bEnvironment Canada.
7102 |aCanada Centre for Inland Waters.
7102 |aNational Water Research Institute (Canada). |bRivers Research Branch.
7102 |aUniversity of Guelph.‏‎ |bDept. of Environmental Biology‏.
830#0|aNWRI contribution ;|v90-95.|w(CaOODSP)9.844121
85640|qPDF|s2.81 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-95-eng.pdf