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The Invasion of the Asian Carp: Silver and Bigheaded Carp in our Waters

The Invasion of the Asian Carp: Silver and Bigheaded Carp in our Waters. Jesse Zastrow, Jerome Barner, Zach Fournier, Eamon Harrity April 14, 2010 ENSC 202 Professor: Stephanie Hurley. Hype. U.S. Supreme Court may rule on Asian carp case

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The Invasion of the Asian Carp: Silver and Bigheaded Carp in our Waters

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  1. The Invasion of the Asian Carp: Silver and Bigheaded Carp in our Waters Jesse Zastrow, Jerome Barner, Zach Fournier, Eamon Harrity April 14, 2010 ENSC 202 Professor: Stephanie Hurley

  2. Hype • U.S. Supreme Court may rule on Asian carp case • Environmental groups say plan to fight Asian carp not enough • Granholm calls Obama carp plan weak • Feds unveil $78.5M effort to blunt Lakes migration of carp • From The Detroit News: http://www.detnews.com/article/20091204/METRO/912040386#ixzz0kTtbznvx

  3. What is the real deal? “Asian carp are like cancer cells," said Cameron Davis, senior adviser with the U.S. Environmental Protection Agency. "They can grow and spread very, very quickly and overtake other healthy living organisms." -Belkin, D Wall Street Journal Nov. 20 2009 http://visibleearth.nasa.gov/view_rec.php?id=5856

  4. Problem Statement The Silver and Bigheaded carp are invasive planktivorous fish that could have serious social, economic and ecological impacts on the Great Lakes and Lake Champlain. http://minnesotaindependent.com/wp-content/uploads/2010/02/Asian-Carp.jpg

  5. Basic Outline • Introduction • Goals and Objectives • Findings • The Carp • The Great lake and Lake Champlain • Vectors of introduction • Preventative Measures • Conclusions and Recommendations

  6. Goals • Assess the risk posed by Asian carp to Great Lakes • How likely is it that they will make it to and survive in the Great Lakes? • Will they be able to migrate within the lakes? • What kind of impacts could they have on the lake system? • Ultimately, what is the likelihood that the carp will make it to Lake Champlain and what impacts could they have here.

  7. Objectives • Investigate the current status of the carp • Distribution, impacts on inhabited areas • Describe the life history of the carp • Familiarize ourselves with the characteristics of the lakes • Assess possible vectors and pathways into and between the lakes • Explore existing and potential prevention practices • Investigate potential economic, social and ecological impacts of these fish (conclusions)

  8. Findings http://asiancarp.net/dasblog/content/binary/Asian%20Carp.jpg

  9. Asian Carp Figure 1: Bighead Carp (Hypophthalmichthys nobilis) Figure 2: Silver Carp (Hypophthalmichthys molitrix) Images from Kolar, 2005.

  10. Asian Carp • Brought in to improve water quality and promote production in aquaculture ponds, reservoirs, and improve conditions in sewage pools primarily in Arkansas. • First introduced to US from private fish farmers in Arkansas (1972 – bighead, 1973 – Silver) for aquaculture pond clean up, later used in federal, state, and private facilities then municipal water management ponds. • Silver Carp have been recorded in 12 states, and Bighead at least 18 states. • Introduced to waters from dumping of bait fish, flooding of stocked ponds, illegal stocking of reservoirs & lakes etc.

  11. Asian Carp Introduction cont’d Figure 4: Range of Bighead Carp in the US, as of August, 2009 (1Fuller, 2009). Figure 3: Range of Silver Carp in the US, as of August, 2009 (2Fuller, 2009).

  12. Asian Carp Native Distribution Figure 5: Native range of Bighead Carp, mainly large rivers and lakes of southeastern Asia; eastern China, eastern Siberia, and the extreme northern range of North Korea (Kolar et al., 2005) Figure 6: Native range of Silver Carp, mainly large rivers and lakes of eastern China and eastern Russia that run into the Pacific Ocean (Kolar et al., 2005) • Occur in freshwaters including rivers and lakes in their native China. • Needs fast-moving water (rivers) for spawning, otherwise prefers slow-moving waters such as lakes, ponds, and flooded backwaters

  13. Asian Carp Habitat Table 1: Data collected in the US in 2004, depicting rivers and habitats of juvenille Bighead and Silver Carp. Table from (Kolar et al., 2005), author cited contacts as the field biologists who provided the data. Has been introduced to reservoirs, canals, man-made ponds and lakes, etc. where they do well. Spawn in spring, tributary use highest in winter according to a study by DCC on the Missouri River.

  14. Asian Carp Temperature Reproductive Biology • Fecundity increases with body size and weight. • Many ranges of Asian Carp reproduction success, from 280,000 to 1,860,800 per Bighead female and 145,000 to 5,000,000 per Silver female, varying from location and study. • Fecundity of Bighead Carp from the lower Missouri River collected in 1998-1999 ranged from 11,588 to 769,964, with an average of 226,213 eggs (Schrank and Guy 2002). • A study of 6 Silver Carp in the Mississippi River in 2003 showed a range of total fecundity as 57,283 to 328,538 eggs. Very temperature tolerant; Adult Asian Carp have been shown to survive in temperatures ranging 2°C to 40°C. A variety of sources document varying optimal temperature ranges, most fall between 20 and 30°C. Temperature fluctuations not necessary for reproduction although it is characteristic of their native range.

  15. Asian Carp Feeding Habits Table 2: Comparison of feeding habits between Bighead carp and Silver carp (Kolar et al., 2005).

  16. Asian Carp Feeding • They consume 7-14% of their body weight in food. • Bighead carp has been shown to prefer Daphnia (Cooke et al., 2009). • Asian carp have been shown to consume different ratios of zooplankton and phytoplankton based on life stage and abundance of plankton. • Bighead carp revert to phytoplankton when zooplankton levels are low, mainly blue-green algae, diatoms, and green algae. • Extremely adaptive feeding habits, change natural zooplankton and phytoplankton composition and feed on detritus if necessary. • Bighead carp primarily zooplanktivores, less specialized than Silver. • Adult Silver carp primarily feed on phytoplankton, larvae on zooplankton. Gill rakers capable of straining phytoplankton down to 4 um in diameter (Chen et al., 2007).

  17. Asian Carp Potential Impact on Recreation/Fishing Industry • Outcompeting native fish for food • Concern for native filter feeding fish like Paddlefish, Bigmouth Buffalo, and Gizzard Shad, as well as many other fish with overlapping food requirements. • Fishermen overwhelmed with amount of carp, cannot catch anything else. • Carp jumping, hitting fishermen, boaters, tubers, etc. DANGEROUS! • The Great Lakes contribute $7 billion to the economy through commercial and sport • fishing, and an additional $8 to $10 billion through recreational boating (FWS 2009). • Jumping Carp

  18. Physical Characteristics of each Lake of Concern

  19. Ecological Status of the Great Lakes Region • The Great Lakes ecosystem is the largest freshwater ecosystem in the world. • The Great Lakes ecosystem is an extensive watershed (288,000 square miles) with 5,000 tributaries and 9,000 miles of shoreline. • Important sport fish in the ecosystem include: Lake trout, Brook trout, Lake sturgeon, Yellow perch, Lake whitefish, Muskellunge, Walleye , Chinook salmon, and Coho salmon US FWS 2010. Midwest Region Hot topic: Asian Carp

  20. Ecological Status of the Great Lakes Region • Significantly degraded over the past few decades due to human use and influx of invasive species • Invasive plants, fish, invertebrates, and macrophytes have devastated native population • 180+ Invasive species currently inhabiting the Lakes (Modley, 2010) • Asian Carp- another potential stressor to the aquatic ecosystem • In the Mississippi River System they outcompete the native fish such as bigmouth buffalo, gizzard shad, and paddlefish for the phytoplankton and zooplankton biomass

  21. General aquatic food web may be used to predict the potential impacts of the Asian carp on the ecological system of the lakes. http://www.nww.usace.army.mil/lsr/final_fseis/study_kit/appendix_c/images/fig4-21.jpg http://techalive.mtu.edu/meec/module08/images/GreatLakesEcology.jpg

  22. Eutrophic Conditions of Lake Michigan and Lake Erie www.epa.gov/solec/sogl2009/0104benthicdiversity.pdf Values ranging from 0-0.6 indicate oligotrophic conditions; values from 0.6-1.0 indicate mesotrophic conditions (shaded area); values above 1.0 indicate eutrophic conditions. Data points represent average of triplicate samples taken at each sampling site. (U.S. Environmental Protection Agency, 2006)

  23. Zooplankton Densities in Lake Champlain Missisquoi Bay St. Albans Bay Cumberland Bay The net zooplankton density of the thousands of organisms per square meter in Lake Champlain sampled throughout the 15 stations. www.anr.state.vt.us/dec//waterq/lakes/docs/.../lp_lc-netzoopdensity.pdf

  24. Potential Pathways • Chicago Shipping and Sanitary Canal • Des Plaines River • Overland flooding • Other canals • Human facilitated introduction (Modley, Personal communication 2010; Daniels, R 2000; Hill, W 2008; FWS 2010; Cooke et al. 2009)

  25. Chicago Shipping and Sanitary Canal http://www.detnews.com/article/20091204/METRO/912040386 http://www.mnn.com/sites/default/files/main_carp.jpg

  26. CSSC • A man-made canal, constructed in the early 1900s as a sewage drain • It is the only shipping link between Lake Michigan and the Mississippi River System • Currently it is 28 miles long 202 ft wide and 22 ft deep. http://www.buffalonews.com/260/story/880112.html www.lib.niu.edu

  27. Des Plaines River • Flooding greatly increases this fish’s mobility and may pose as a serious complication to any prevention measure • Modley 2010, FWS 2010 http://fwcb.cfans.umn.edu/sorensen/research/CarpSpawn.jpg http://dnr.wi.gov/invasives/fact/asian_carp.htm

  28. OOPS!Accidental Introduction The Great Lakes have around 184 known invasive species and quite a few have been traced back to the ballast waters of cargo ships. Rainbow Smelt, Fishhook water Flea, Fourspine Stickleback Grass carp still shipped around the country for plankton control in aquaculture ponds For all your carp stocking needs! http://www1.agric.gov.ab.ca/$Department/deptdocs.nsf/all/agdex346 Looking at the literature, it seems the poly-carp stocking practice has declined significantly since the early 2000’s Ricciardi, 2006; http://www.wvu.e u/~agexten/aquaculture/Pondweed.pdf

  29. Human Facilitated Introduction Bait Fish Awaiting response from local baitfish shops Alewife believed to have been introduced as a bait fish on accident Culinary market They are a staple food in their native range and are slowly gaining popularity here Bigheaded carp is shipped live as a specialty food item As small markets develop so does the movement of this carp “We shouldn't be trying to eradicate it; it's too late for that. We should be eating it.” Steve Mcnitt- Schafer Fisheries in Thomson, Ill (Los Angeles Times, Jan. 16 2010)

  30. New York State Canal System http://www.shipsblog.com/navigating/maps/NYS_Canal_overview.gif http://www.nyscanals.gov/maps/map7.html

  31. NYSCS • 524 miles of canals connecting Lake Erie to the finger lakes, Hudson River and Lake Champlain • 12 ft deep in most places • Warm, nutrient rich waters that support thriving sport fish populations • Small and Large mouth bass, walleye, panfish northern pike, blueback herring and coho salmon www.nycanal.com

  32. Champlain Canal • 60 miles of shallow nutrient rich water • As many as 12 invasive species including zebra mussels and white perch thought to have arrived through this canal • Shipping traffic much lower than in the past, mostly for recreational use now • Modley (2010) believes that the carp would be more than capable of migrating up this canal into Lake Champlain

  33. Asian Carp Preventative Measures Overview • Current Preventative Measures • CSSC Underwater Electric Barrier • eDNA Sampling • Rapid Response Plan • Electrofishing/Netting/Targeted Removal • Alternative Preventative Measures • Physical Controls • Biological/Chemical Controls • Social Controls

  34. Current Preventative Measures http://asiancarp.org/Images/water%20was%20up%20to%20here%20coming%20in%20to%20bank.JPG

  35. CSSC Underwater Electric Barrier • Only dispersal barrier between Lake Michigan and the Mississippi River basin • Structure: - steel cables with electrodes on either end • non-lethal, gradual electric field created underwater • uncomfortable for fish to pass (USACE 2007) http://www.lrc.usace.army.mil/projects/fish_barrier/file/DB1.jpg

  36. CSSC Underwater Electric Barrier Cont’d http://www.lrc.usace.army.mil/projects/fish_barrier/ Two barrier system • Barrier I (demonstration) • 1 Volts/Inch, pulsing 5Hz every 4ms • NANPCA, completed April 2002, • temporary • Stretches 54 feet of canal (USACE 2009) • Barrier II • Barrier II-A • 2 Volts/Inch, pulsing 15 Hz • every 6.5 ms • 1300ft downstream Barrier I • Completed April 2008, • permanent (Asian Carp Working Group 2010) • Barrier II-B • Same operating capacity as II-A • 800 ft downstream Barrier I • Slated for completion October 2010 (Asian Carp Working Group 2010)

  37. CSSC Underwater Electric Barrier Cont’d EffectivenessCostTime-Scale • Dependant upon: Barrier I : $4 million (2007) completed April 2002 • Current velocity Barrier II : project ceiling II A: completed 04/2008 • Water Temperature $16 million (2007) IIB: slated completion • Conductivity (USACE 2009) 08/2010 (Dettmers et al. 2009) • Carp life stage (juvenile?) (Brammeier et al 2008) • Electric Barrier shown to be ~ 90-99% effective ( Brammeir et al. 2008) - MDNR study in 2004 found electric barrier + acoustic bubbler to be ~ 83 % effective • HIGH UNCERTAINTY

  38. eDNA Sampling Figure: Two sites depicting positive detections, Site A is the Brandon Road pool, Site B is near power plant in Dresden Island pool http://www.lrc.usace.army.mil/pao/eDNA_FactSheet_20090918.pdf • Developed at U. of Notre Dame, current method of Carp detection (USACE 2009) • Examines local water samples for traces of carp DNA • Mucoidal secretions • Feces / urine • Tissue • Presence/Non-presence determined by identified genetic marker (Lodge 2010) • Effectiveness: • Greater ease of detection • Does not account for specimen life history traits, quantity present, or exact location (Lodge 2010) • Cost: • Current total: $2,600,000 • Future Estimates: $940,000 (Asian Carp Working Group 2010)

  39. Rapid Response Program http://www.chicagonow.com/blogs/dennis-byrne-barbershop/assets_c/2009/12/fish-thumb-600x405-43833.jpg “We believe it is still critical to support and defend the electric barrier while it is down for maintenance,” said IDNR Assistant Director John Rogner. “The barrier remains our most effective weapon against this very aggressive invasive species” (IDNR 2009).

  40. Rapid Response Program cont’d http://www.alanwood.net/pesticides/structures/rotenone.gif • Maintenance on barriers required every 4-6 months, barriers are turned off (USFWS 2010) • Rapid Response Program implemented during these maintenance periods • Program consists of dumping piscicide into CSSC to eliminate all biota (Asian Carp Working Group 2010) • Rotenone chosen by EPA as most effective means to eliminate Asian carp • Derived from roots of tropical/sub tropical plants • Inhibits biochemical processes at cellular level • No fish is immune => death (US EPA 2007) http://www.asiancarp.org/rapidresponse/images/DSC07419.jpg

  41. Rapid Response Program cont’d • Effectiveness: • Studies show 65-95% effective in killing target species (Brammeier et al. 2008) • Rapid Response implemented in December 2009 in CSSC yielded over 90 tons of dead fish, including one Asian carp (Hood 2009) • Cost • Cost of Rotenone very high, $1 / acre foot • December 2009 application: 2,200 gallons dumped into CSSC over three day = $3 million (Hood 2009) • Timescale • Rotenone degrades rapidly , ceasing to affect fish after a few hours, becomes non-toxic after 4-6 weeks (US EPA 2008) • Application of Rotenone in accordance with routine maintenance schedules http://www.asiancarp.org/rapidresponse/media.htm

  42. Electro-fishing/ Netting/ Targeted Removal • In accordance with Asian Carp Working Group Control Strategy Framework (Feb. 2010) • Utilizes current eDNA sampling methods • Data reveals carp hotspotsabove barrier system where carp have been positively identified • Warm water discharges • Wastewater treatment plant outfalls • Tail waters of locks and dams • Marina basins • Barge Slips • Other slack water areas • Within target areas, fish are concentrated to a confined area (electro-fishing, acoustics, nets) • Removed via application of Rotenone (Asian Carp Working Group 2010)

  43. Electro-fishing/ Netting/ Targeted Removal • Effectiveness: • Proven to be effective method to eradicate fish in given area • Control study by IDNR downstream of barrier system yielded 30-40 Asian carp in eDNA identified area (MDNR et al. 2010) • Likelihood of success directly linked to expedience of eDNA sample analyzation, fish are mobile • Speeding up eDNA methods critical to effectvie removal! • Cost • Estimated cost for implementation of this program (~April 2010) : $2 million (Asian Carp Working Group 2010) http://www.tnfish.org/ElectrofishingShockingSurveys_TWRA/TWRA_ElectrofishingNegus.jpg

  44. Alternative Preventative Measures http://www.chicagonow.com/blogs/dennis-byrne-barbershop/assets_c/2010/01/carp-thumb-560x338-56351.jpg

  45. Physical Methods • Physical Barriers • Vertical Drop Barrier • Hydraulic drop greater than carp leaping ability (~10 ft) • Dams, feasible in small tributaries => 95-100 % effective (Brammeier et al. 2007) • Rotating Drum Screens • Drums set in-stream on a cable • Continually turn, allow passage of fine debris but not carp ( MDNR et al. 2004) • Small scale, 95-100 % effective • Floating Curtains • Floating curtain attached to pilings across water body • Allows fine debris to pass; small scale => 95-100% effective (MDNR et al. 2004) • High Velocity Structures • Concentrated areas of high velocity • Flat aprons in dam spillways, velocity faster than carp swimming speed • Highly effective, small scale (MDNR et al. 2004)

  46. Physical Methods cont’d http://www.forces.gc.ca/site/commun/ml-fe/images/articles/fullSize/09-13-11a.jpg • Bubble Curtains • Perforated tube laid across bottom of channel, compressed air pumped through creating wall of bubbles • 50-95% effective • Construction and operating costs: $0.5-1 million • Strobe Lights • Most effective when utilized in concert with other deterrents (bubble curtains, acoustic deflections) • 60-95% effective in eel study (MDNR et al. 2004) • Cost: $0.5-1 million, but only to be used at channel entrances (Brammeier et al. 2007) (MDNR et al. 2004)

  47. Physical Methods cont’d • Acoustic Deterrents • Sound Projector Array • Electronic signal generator, several powerful amplifiers, under water array of sound projectors (MDNR et al. 2004) • 80% effective, estimated cost $1 million (Brammeier et al. 2007) • Acoustic field not highly concentrated, effective for blocking river intakes • Uncertainty in optimal operating range to maximize effectiveness (life stage) (MDNR et al. 2004) • Bio-acoustic Fish Fence • Combined concentrated acoustic field and bubble curtain • Electromagnetic/pneumonic sound transducer coupled to bubble sheet generator • Multi-faceted carp barrier • 90% effective; cost: $1.2 million (MDNR et al. 2004) • Hybrid Systems • System incorporating SPA with bubble curtain being developed • Allow direct modification of signal to target Asian carp (MDNR et al. 2004)

  48. Figure: SPA system (MDNR et al. 2004)

  49. Figure: Bio-acoustic Fish Fence System (MDNR et al. 2004)

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