searun
Well-Known Member
FisheryEffectsSRKW_FINAL_Jan28_2019[2].pdf
WA State released a new study outlining caloric requirements to support SRKW, against available Chinook prey already in the Puget Sound. Researchers determined some rather interesting findings:
Estimating available prey for SRKWs In analyzing the daily dietary needs of SRKWs relative to prey abundance, NMFS (2018) indicated that there are significantly more Chinook available in Puget Sound than what is needed to sustain the SRKW population now.
The estimated ratios of Chinook abundance relative to SRKW prey needs indicates that there were 11-22 times the amount of Chinook food energy available in Puget Sound in 2014 (Table 15, NMFS 2018).
In some years (e.g., 2012) the range drops as low as about nine times the amount needed during the July-September timeframe, but has also been as high as 16 times the amount needed in other years (e.g., 2010) for the same period.
WA State released a new study outlining caloric requirements to support SRKW, against available Chinook prey already in the Puget Sound. Researchers determined some rather interesting findings:
Estimating available prey for SRKWs In analyzing the daily dietary needs of SRKWs relative to prey abundance, NMFS (2018) indicated that there are significantly more Chinook available in Puget Sound than what is needed to sustain the SRKW population now.
The estimated ratios of Chinook abundance relative to SRKW prey needs indicates that there were 11-22 times the amount of Chinook food energy available in Puget Sound in 2014 (Table 15, NMFS 2018).
In some years (e.g., 2012) the range drops as low as about nine times the amount needed during the July-September timeframe, but has also been as high as 16 times the amount needed in other years (e.g., 2010) for the same period.