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Fisheries Behavioral Ecology
Research Topic 4: Fishing Gear

RACE Home
Fisheries Behavioral
Ecology Program (FBE)
Staff and Students
Research Topics
Fish and Environment
Fish Habitat
Bycatch Mortality
Fishing Gear
Program Facilities
Focal Species
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Long-line gear with a hooked Sablefish on seafloor.The Fisheries Behavioral Ecology Program conducts experimental research related to the processes that influence capture of fishes with trawls, traps, and long-line gear. These processes include fish vision, olfaction, orientation, locomotory abilities, activity patterns and feeding motivation, as well as the environmental parameters that mediate those elements of behavior. Specialized apparatus have been designed to examine fish passage through net mesh and bycatch reduction devices. Infrared laboratory facilities allow video observation of fishes in low light.

Recent experiments include:

  • Variation in olfactory thresholds.
  • Effects of light level and hunger on bait attack.
  • Effects of temperature and feeding history on bait detection and attack.
  • Effects of light level on orientation and passage of walleye pollock through trawl mesh.
  • Response of flatfishes to trawl foot-rope configuration.

See this link for discussion of a new research theme related to underwater surveys.

 

Research Topic 1: Fish and Environment

Research Topic 2: Fish Habitat

Research Topic 3: Bycatch Mortality

Research Topic 4: Fishing Gear

 

Last updated 27 March, 2009


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