000 02848cam  2200385za 4500
0019.858801
003CaOODSP
00520221107160106
007cr |||||||||||
008180710s2007    quc    |ot   f|0| 0 eng d
020 |z0-662-44739-9
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-qu
0861 |aCW69-5/472E-PDF
1001 |aRodrigue, Jean,|d1961-
24510|aHarlequin duck harvest and contamination in Québec |h[electronic resource] / |cJean Rodrigue.
260 |aSainte-Foy, Québec : |bCanadian Wildlife Service, Québec region, |c2007.
300 |avi, 21 p. : |bfigures.
4901 |aTechnical report series ; |vno. 472
500 |aIssued also in French under title: Récolte et contamination d’Arlequins plongeurs au Québec.
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographic references.
520 |a"Since 1990, the ban on Harlequin Duck (Histrionicus histrionicus) hunting has reduced the number of bird wings provided by hunters during the Species Composition Survey (SCS) conducted in eastern Canada by 78%. Nevertheless this reduction is not distributed equally between provinces. In Québec, information gathered on Harlequin Duck hunting and accidental killing between 1970 and 2004 showed that the latter is the primary cause of mortality for harlequins, followed by sport and subsistence hunting. Over 50% of birds killed originated from the North Shore of the St. Lawrence River. In order to better protect this species, communication strategies in isolated regions should be implemented. Concentrations of most organochlorine contaminants and of mercury, cadmium, arsenic, and selenium in Harlequin Ducks are lower than those known to cause health problems in birds. However, the only adult female captured in spring had a higher liver selenium concentration than the threshold value (3 μg/g; wet weight) beyond which reproductive problems are known to occur in birds under experimental conditions. "--Abstract, p. iii.
530 |aIssued also in print format.
546 |aIncludes abstract in French.
69207|2gccst|aAquatic birds
69207|2gccst|aNature conservation
7101 |aCanada. |bEnvironment Canada.
7102 |aCanadian Wildlife Service. |bQuebec Region.
77508|tRécolte et contamination d’Arlequins plongeurs au Québec |w(CaOODSP)9.858806
7760#|tHarlequin Duck harvest and contamination in Québec / |w(CaOODSP)9.618115
830#0|aTechnical report series (Canadian Wildlife Service)|vno. 472.|w(CaOODSP)9.504438
85640|qPDF|s307 KB|uhttps://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-472-eng.pdf