Electric Fish Handling Gloves: New technology for immobilizing & handling fish
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1 Electric Fish Handling Gloves: New technology for immobilizing & handling fish Elizabeth Cipriani PNNL Bob Mueller PNNL Alison Colotelo PNNL Ralph Lampman Yakama Nation Patrick Cooney Smith-Root Director of Electrofishing Science
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6 Fish Handling Tag Move Sort Spawn Euthanize Inspect Weigh Measure Grade Transport Vaccinate Implant and more
7 Fish Handling Non-immobilized (Mobilized) -Optimal for: o Short handling duration o Quick assessments -Benefits include: o Immediate recovery of fish o No permits needed o No withdrawal times o Minimal cost o No chemical disposal issues -Drawbacks include: o Potential injury risk for handler and fish o Long duration handling is not optimal
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18 Fish Handling We all know the feeling.
19 Immobilization Typical Methods: o Carbon Dioxide o Tricaine methane-sulfonate (MS-222) o Benzocaine o Clove Oil (Aqui-S) o Electricity
20 Fish Handling Immobilized -Optimal for: o Extended handling duration o Spawning o Invasive procedures -Benefits include: o Stops fish from moving o Ease of handling o Minimizes injury to handler and fish -Drawbacks include: o Potential permitting restrictions o Long induction and recovery times o Immediate release restrictions o Chemical disposal
21 Tricaine methane-sulfonate (MS-222) For fish: o Not to be used within 21 days of harvesting fish for food o Restricted to Ictaluridae, Salmonidae, Esocidae, and Percidae o For water temps exceeding 10 degrees C (50 degrees F)
22 Comparison of Methods Benzocaine 2012 MS-222 Electrosedation Eugenol CO2
23 Comparison of Methods 2014
24 Calls and Requests We want to handle and immobilize fish using electricity to perform these tasks. Can Smith-Root develop a product to do this? Tag Move Sort Spawn Euthanize Inspect Weigh Measure Grade Transport Vaccinate Implant and more
25 Challenge -Develop a tool that is optimal for: o Multitude of tasks o Wide range of handling times o Fish out of water or partially submerged -Key factors: o Portable o Stop fish from moving o Minimize health risk o No chemicals o Short induction and recovery times o No permits o No disposal issues o Simple to use o Waterproof Tag Move Sort Spawn Euthanize Inspect Weigh Measure Grade Transport Vaccinate Implant and more
26 Electric Fish Handling Gloves
27 Electric Fish Handling Gloves Direct Current Waterproof Housing Switch Harness -Low power and current o 0.004, , 0.01, 0.016, and Amps Wiring Harness 2 Pairs of Gloves
28 Electric Fish Handling Gloves -Portable o Rechargeable Lithium batteries -Safety o Rubber gloves insulate user o Both hands must touch object o Other folks can go glove free when touching immobilized fish because fish offers path of least resistance Waterproof Housing Switch Harness Wiring Harness 2 Pairs of Gloves
29 Field Testing
30 Outside Testing
31 Outside Testing
32 Outside Testing
33 Outside Testing
34 Outside Testing
35 Outside Testing Electric Fish Handling Gloves: Evaluation on three freshwater species Elizabeth Cipriani Science Undergraduate Laboratory Internship
36 Study -Three species o White sturgeon (n=60) o Rainbow trout (n=30) o Pacific lamprey (n=83) -Design o PIT tag all fish o Handled for 2, 4, or 6 minutes o Compare to control, MS-222, and Aqui-S (clove oil) -Variables o Induction and recovery times o Survival o Injury o Gear limitations
37 Results Induction Recovery 2 min 4 min 6 min MS-222 Aqui-S 2 min 4 min 6 min MS-222 Aqui-S
38 Results Held for 2, 4, or 6 minutes, then monitored for 21 days. Survival Injury o Rainbow trout*: 100% 0% o White sturgeon: 100% 0% o Pacific lamprey: 97.6% 24% *1 rainbow trout from control group died
39 Cast of Characters Salmon -Atlantic, Chinook, Coho, Chum, Sockeye Trout -Steelhead, Rainbow, Brown, Brook, Lake Lamprey -Brook, Pacific, River Bass -Smallmouth, Largemouth Catfish -Flathead, Channel White sturgeon Common carp Crappie -Black, White American eel Black sea bass Lingcod Albacore Tuna Blue shark Muskellunge Walleye Yellow perch Bluegill Pongee
40 Additional Tool in the Box
41 Electric Fish Handling Gloves
42 Final Thought
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