Pingguo He

Behavior of marine fishes: capture processes and conservation challenges.

Behavior of Marine Fishes: Capture Processes and ConservationChallenges (Editor: Pingguo He) Preface (Clement S. Wardle). Introduction (Pingguo He). Part One: Locomotion and sensory capabilities in marinefishes. Chapter 1: Swimming in marine fishes (John J. Videler andPingguo He). Chapter 2: Fish vision and its role in fish capture (TakafumiArimoto, Christopher W. Glass and Xiumei Zhang). Chapter 3: Hearing in marine fishes and its application infisheries (Hong Young Yan, Kazuhiko Anraku and Ricardo P.Babaran). Part Two: Fish behavior near fishing gears during captureprocesses. Chapter 4: Fish behavior near bottom trawls (Paul D. Winger,Steve Eayrs and Christopher W. Glass). Chapter 5: Fish behavior in relation to longlines (SveinLokkeborg, Anders Ferno and Odd-BorreHumborstad). Chapter 6: Fish pots: fish behavior, capture processes andconservation issues (Bjarti Thomson, Odd-Borre Humborstadand Dag M. Furevik). Chapter 7: Large-scale fish traps: gear design, fish behaviorand conservation challenges (Pingguo He and YoshihiroInoue). Chapter 8: Fish behavior near gillnets: capture processes andinfluencing factors (Pingguo He and Michael Pol). Chapter 9: Electric senses of fish and its application in marinefisheries (Hans Polet). Part Three: Contemporary issues in capture and conservationin marine fisheries. Chapter 10: Technical measures to reduce bycatch and discards intrawl fisheries (Norman Graham). Chapter 11: Mortality of animals that escape fishing gears orare discarded after capture: Approaches to minimize mortality(Petri Suuronen and Daniel L. Erickson). Chapter 12: Effect of trawling on the seabed and mitigationmeasures to reduce impact (Pingguo He and Paul D.Winger). Chapter 13: Measures to reduce interactions of marine magafaunawith fishing operations (Dominic Rihan).

Simulation of the virtual mackerel behavior to the trawl gear

This paper focuses on the mackerels visual ability and swimming capability, and aims to describe thebehavior in capture and escape process by trawl. The visual sensory systems and reaction behavior basedlocomotory capability were analyzed and simulated. The ability of fish to see an object depends on the lightintensity and the contrast and size of the object. Swimming endurance of the fish is dependent on theswimming speed and the size of the fish. Swimming speeds of the fish are simulated 3 types of the burstspeed, the prolonged speed and the sustained speed according to the time they can maintain to swim. Theherding and avoiding is typical reaction of the fish to the stimuli of trawl gear in the capture process. Thesebasic behavior patterns of the virtual mackerel to the gear are simulated. This simulation will be helpful tounderstand the fishing processes and make high selectivity of fishing.Key words : Fish behavior, Fishing simulator, Visual ability, Swimming, Trawl gear