000 02148cam  2200397zi 4500
0019.873441
003CaOODSP
00520221107163920
006m     o  d f      
007cr bn|||||||||
008190523s1989    oncd    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
043 |an-cn---
0861 |aEn13-5/89-41E-PDF
1001 |aMazumder, Asit, |d1954- |eauthor.
24512|aA comparison of lakes and lake enclosures with contrasting abundances of planktivorous fish / |cA. Mazumder [and four others].
264 1|aBurlington, Ontario : |bLakes Research Branch, National Water Research Institute, Canada Centre for Inland Waters, |c[1989].
300 |a1 online resource (29, [4] pages) : |bcharts.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aNWRI contribution ; |vno. 89-41
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (pages 18-22).
520 |a"Traditionally, it was thought that nutrients, particularly phosphorus, was solely responsible for the quantity and quality of the phytoplankton species composition in lakes. In the present investigation, nutrients (nitrogen and phosphorus) and planktivorous fish just over 1 year old were added to enclosures in a 2x2 factorial design. In this way, nutrienteffects could be distinguished from “top down" effects of the fish. Results were compared to other lakes with known levels of planktivorous fish"--Executive summary.
546 |aIncludes summary in French.
69207|2gccst|aLakes
69207|2gccst|aWater management
69207|2gccst|aAquatic ecosystems
7101 |aCanada. |bEnvironment Canada.
7102 |aNational Water Research Institute (Canada). |bLakes Research Branch.
7102 |aCanada Centre for Inland Waters.
830#0|aNWRI contribution ;|vno. 89-41.|w(CaOODSP)9.844121
85640|qPDF|s3.44 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-89-41-eng.pdf