A percentage of fish later die after being released by anglers. The figures below are examples of the
most severe data gathered in this comprehensive scientific review of literature.
|Species||Percentage dead after|
|Atlantic salmon (lake)||74%||24 hours|
|Atlantic salmon (stream)||100%||24 hours|
|Brown trout||71%||24 hours|
|Brook trout||66%||24 hours|
|Stripped bass||79%||71 hours|
"Hooking mortality" in fish is defined as the proportion of fish dying after being caught by angling and then released.
WITHIN 24 HOURS
"Catch-and-release mortalities were reported to be highest soon after hooking in Atlantic salmon. Mortalities occurring within 24 h were 74% for a landlocked population (Warner, 1979a), 100% in a stream (Warner and Johnson, 1978), and 22.5% in hatchery raceways (Warner, 1976)."
"In brown trout, mortality within 24 h was 71% (Hulbert and Engstrom-Heg, 1980). Nuhfer and Alexander (1992) reported that 66.6% of brook trout mortality occurred within 24 h."
WITHIN 72 HOURS
"Harrell (1988) found that most mortality (79.4%) in striped bass occurred within 72 h of hooking."