Prioritizing contaminants of concern in the Fraser River watershed: a risk-based evaluation for outmigrating juveniles and returning adult salmon

• Main Author: Brown, Dr. Tanya
• Format: Text
• Language: English
• Published: Western CEDAR 2022
• Subjects: Fraser River; Orca; Orcinus orca
• Online Access: https://cedar.wwu.edu/ssec/2022ssec/allsessions/373; https://cedar.wwu.edu/context/ssec/article/3535/viewcontent/SSEC_TBrown_April_2015_202022.pdf

The Fraser River watershed is home to 54 unique spawning populations of salmon, including 19 Chinook (Oncorhynchus tshawytscha) populations. Fraser Chinook provide 80-90% of the food source consumed by Southern Resident killer whales (SRKW, Orcinus orca) in the spring and summer. Over 90% (15/16) Fr...