It's really important that you educate yourself on these issues before taking a position. Google is your friend. This is an old study but I see no mention of sealions. And the state of this watershed is anything but natural.
http://www.pugetsoundnearshore.org/supp ... _FINAL.pdf"the most important cause of physical change to the watershed has been
the expansion of urban and suburban development. In particular, this has altered the
hydrology of the watershed; both through changes in land cover and through increased water
withdrawals. Changes in land cover due to urbanization have been extensively shown to
relate to degradations in salmon habitat, mostly due to changes in flows but also because of
degraded riparian areas."