![Page 1: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/1.jpg)
Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP)Neil J. Elms – 4/13/11 BIO 108R - Dr. Skinner
![Page 2: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/2.jpg)
TaxonomyKingdom – AnimalPhylum – ArthropodaSubphylum – CrustaceaClass – BranchiopodaSubclass – PhyllopodaOrder – DiplostracaInfraorder – OnychopodaFamily - Cerpagididae
• 1 – 5 cm long• Eye Spot• Egg Pouch• Tail = 70% of Total Length• 1- 4 Tail Barbs• Mandibles• Mistaken for Daphnia
![Page 3: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/3.jpg)
• Eurasia – Black, Caspian, Aral, Azov, & Baltic Seas• Great Lakes 1980’s - 90’s; Finger Lakes 2000• Ballast Tank Stowaways
• United States• Commercial and Sport Fishing Gear• Nets, Downriggers, Live Wells
![Page 4: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/4.jpg)
• Spiny
• Fishhook
![Page 5: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/5.jpg)
• Days to a Week Long Life Span• Both, Sexually and Asexually• Up to 13 Clones Every 10 Days (May thru September)• Brood Pouch
• Developing Embryos• Female Clones (May thru August)
• Dies After Cloning• Resting / Dormant Eggs
• Male and/or Female (1-2 Eggs)
![Page 6: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/6.jpg)
• Eat and Compete with Native Zooplankton (Daphnia)• Rapid Reproduction / Cloning Leads to Eutrophication• Comfortable in Clear and Brackish / Fresh and Salt• Success at Various Water Columns• Adaptive
• No Tail Molts to Ensure Continuous Protection• Temperature Regulates Population• Dormant Eggs Carried Thru Poor Conditions• Size
• Avoided by Fry• Choke and Suffocate Fry with Tail Barbs
• Depletes Food Resources for Larger Fish, Birds and Humans
• No Known Method of Control or EradicationPractice “Good Fishing Hygiene”
![Page 7: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/7.jpg)
www.caspianenvironment.org/biodb/eng/zooplankton/Cercopagis%20pengoi/main.htm
www.westsidenews.net/OldSite/westside/news/2001/0122/features/lakestudy.html
www.great-lakes.net/envt/flora-fauna/invasive/spinyflea.html
www.dnr.wi.gov/org/caer/ce/eek/critter/insect/waterflea.htm
www.glerl.noaa.gov/seagrant/cercopagis/cercopagisID.htm
www.epa.gov/grtlakes/monitoring/exotics/cercopagis.html
www.gfawesome.org/mad_science/activities.html
www.seagrant.umn.edu/education/index.html
www.epa.gov/region5/enved/resources.html
www.seagrant.umn.edu/exotics/spiny.html
www.dnr.wi.gov/invasives/fact/spiny.htm
www.iiseagrant.org/EXOTICSP/
![Page 8: Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP) Neil J. Elms – 4/13/11](https://reader036.vdocument.in/reader036/viewer/2022070406/5681416d550346895dad52de/html5/thumbnails/8.jpg)
Bythotrephes cederstroemi (BC) & Cercopagis pengoi (CP)Neil J. Elms – 4/13/11 BIO 108R - Dr. Skinner