Sure it’s big enough, but look at the location! Using odors to guide sea lamprey towards a barrier-integrated trap

John B. HumeTrevor D. MeckleyNicholas S. JohnsonThomas M. LuhringMichael J. Siefkes& Michael Wagner

Michigan State UniversityU.S. Environmental Protection AgencyGreat Lakes Fishery CommissionU.S. Fish & Wildlife ServiceFisheries and Oceans CanadaU.S. Geological Survey

29 barrier-integratedtraps

1000barriers in the Great Lakes basin

54%average trap efficacyrange 12 - 85%

Source: GLFC, 2015

reproductive pheromones

environmental cuesalarm substances

food odors

olfactory bulb

prey capture

river entry

mate availability

risk avoidance

behavior

prey capture

river entry

mate availability

risk avoidance

behavior

Trevor Meckley et al.Before the River: Revealing How Lamprey Migrate in Open Waterand Coastal Environments

Tomorrow, 08:40

Greg Byford & Michael WagnerDoes the Apparent Risk of Predation Alter theResponse to a Habitat Selection Pheromone inMigrating Sea Lamprey?

Tomorrow, 08:20

Michael Wagner et al.Risks & Rewards: Experimental Studies ofOdor-Mediated Movement and Habitat SelectionIn Migrating and Spawning Sea Lamprey

Today, 08:40

mate availability

risk avoidance

behavior

prey capture

river entry

3kPZS

“alarm cue”vs

1Redistribute migratory lamprey?

2 Increase trap efficacy?

3Reduce search time?

Michigan

10 m

A1

A2A3

A4

50 m

350

m

Lake Michigan

release point

Carp Lake River

Left pump positionRight pump position

50 m

11 m

Lake Michigan

1Redistribute migratory animals?

80%of sea lamprey avoided the alarm cue odor

Percent detected within plumealarm cue - 20.42 ± 3.5 S.E., P = 0.027alarm cue + 3kPZS - 19.91 ± 1.9 S.E., P = 0.026control - 37.08 ± 6.1 S.E.

2 Increase trap efficacy?

91.4%

96.6%

92.9%

control

alarm cue + 3kPZS

alarm cue

recapture rate

recapture rate

recapture rate

20.1, 13-23 encounter

19.7, 16-22 encounter

20.9, 18-23 encounter

3Reduce search time?

27.1 minutes to locate trap entrance

CONTROLON

NIGHTS

14.7

14.5

54%faster

alarm cuewhen

was applied

range 2 - 153

range 1 - 86

range 1 - 122

push-pull application

redistributes

Get’s them there faster

catches more?

Michael WagnerTrevor Meckley

Tom LuhringNick JohnsonMike Siefkes

Hammond BayBiological Station

Luke BakerCarrie Kozel

Amanda PomrankeGreg Byford

Steven Ripley

Now read the scientific version!

DOI: 10.1139/cjfas-2014-0535