Salmloop: Verskil tussen weergawes

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Lyn 55:
Vislere is spesiaal ontwerp om salm en ander vis behulpsaam te wees om damme en ander mensgemaakte versperrings te omseil, en voortgaan om hul broeiplekke verder stroomop te bereik.
 
Geskoolde roofdiere, soos [[Beer|bere]], seearende en vissermanne, sal tydens die loop die salm inwag. Die normaalweg alleenlopende [[Grysbeer|grysbere]] kom by strome en riviere saam waar die salm kuit. Predasie deur seeleeus en otters kan selfs in rivierekosisteme 'n beduidende bedreiging inhou.<ref>{{Citation|url=http://www.nwr.noaa.gov/marine-mammals/seals-and-sea-lions/upload/cr-pinniped-fs.pdf|date=March 2008|title=Seal & Sea Lion Facts of the Columbia River & Adjacent Nearshore Marine Areas|publisher=[[NOAA]]|access-date=2012-04-16|archivedate=2012-07-23|archiveurl=https://web.archive.org/web/20120723020046/http://www.nwr.noaa.gov/Marine-Mammals/Seals-and-Sea-Lions/upload/CR-Pinniped-FS.pdf}}</ref><ref>{{Citation|url=https://www.npr.org/templates/story/story.php?storyId=90213669|title=Endangered Seals Eating Endangered Salmon|publisher=[[NPR]]|date=6 Mei 2008}}</ref>
 
== Die kuitskiet ==