However, even a relatively large decrease in any single mortality source without decreases in the others is unlikely to be effective in rebuilding salmon numbers.
(even a relatively large decrease in any single mortality source without decreases in the others; is; unlikely to be effective in rebuilding salmon numbers) (even a relatively large decrease in any single mortality source without decreases in the others; to be; effective in rebuilding salmon numbers)
even a relatively large decrease in any single mortality source without decreases in the others even a relatively large decrease in any single mortality source without decreases in the others
is to be
unlikely to be effective in rebuilding salmon numbers
effective in rebuilding salmon numbers