Bass Tournament Literature Review

1
Bass Tournament Literature Review

• Mortality
• livewell procedures Rachel
• review Holly
• Displacement
• Brian K, Brian E, Renee
• Reproductive Success
• Kirsten, Chris, Aaron

2
Livewell Operating Procedures to Reduce Mortality
of Black Bass during Summer Tournaments

• Eugene R. Gilliland
• 2002
• American Fisheries Society Symposium
• Rachel McNinch

3
Location of Study

• Oklahoma
• Tournaments
• Summer
• Spring

4
Major Questions

• What is the mortality rate of tournament fish vs.
  control fish?
• 1995 Spring and Summer Mortality Study
• What livewell treatment results in the lowest
  mortality?
• 1996 Summer Livewell Treatment Comparisons
• Does adding pure oxygen to livewell water reduce
  mortality?
• 1998 Livewell Oxygenation Trials

5
Major Findings

• 1995 Study
• Total Summer mortality gt Total Spring mortality
• Control fish had high delayed mortality
• 25 boats not using recirculation systems to
  aerate livewells
• DO in livewells with recirculation systems gt
  livewells with out

6
Major Findings

• 1996 Study
• Teams with no fish care instructions
• Worst livewell environments
• 28.8 degrees C, 4.7 DO, 32.3 Total Mort.
• Teams with flow through aeration
• 27.4 degrees C, 6.1 DO, 24.7 Total Mort.
• Teams with ice, salt, and recirculation
• Lowest Total Mortality
• 25.7 degrees C, 5.9 DO, 17.2 Total Mort.

7
Major Findings

• 1998 Study
• Continuous freshwater flow-through and
  recirculation/ aeration
• 32 degrees C, 5.4 DO, 14.9 Total Mort.
• Oxygenation
• 30.3 degrees C, 17.9 DO, 6.7 Total Mort.

8
Recommendations

• Education of anglers
• Fishing publications, news releases, internet
  websites, TV fishing programs
• At minimum run freshwater flow-through aerator
  pumps
• Spring vs. Summer
• Follow WIK program weigh-in procedures