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Dunkard Creek Aquatic Life Kills September, 2009

Dunkard Creek Aquatic Life Kills September, 2009. ORSANCO Technical Committee Meeting October 20, 2009. Pennsylvania Fork. Blacksville #2. Mason-Dixon Park. West Virginia Fork. Miracle Run. Range Run. St. Leo. Draft Timeline of Dunkard Creek Fish Kill Investigation. Data Sources.

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Dunkard Creek Aquatic Life Kills September, 2009

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  1. Dunkard Creek Aquatic Life Kills September, 2009 ORSANCO Technical Committee Meeting October 20, 2009

  2. Pennsylvania Fork Blacksville #2 Mason-Dixon Park West Virginia Fork Miracle Run Range Run St. Leo

  3. Draft Timeline of Dunkard Creek Fish Kill Investigation

  4. Data Sources • WVDEP • Division of Mining and Reclamation • Division of Water and Waste Management • Environmental Enforcement • Watershed Assessment • WVDNR • PA Fish and Boat Commission • PADEP • USEPA • Dischargers • NPDES Requirements • Special Studies • WVU, RAIN, USGS, Watershed Associations, Interest Groups, others?

  5. Data • Great Deal Collected • Not all results in/entered/qc’d... • Many, many pollutants analyzed for... • Most Investigators Analyzing pH, Conductivity, Sulfate, Chloride, TDS, nutrients and metals • Organics have also been analyzed • This is a developing topic, cooperators seeing things for the 1st time; much more coordination required

  6. WVDEP Pre-TMDL Development Monitoring – July 2005 thru June 2006 v. Recent Data WV & PA DEP data - DRAFT

  7. Uncorrected data

  8. Uncorrected data

  9. Uncorrected data

  10. Prymnesium parvum is a haptophyte, belonging to Haptophyta (=Prymnesiophyta). The species is of concern because of its ability to produce a toxin. It is a flagellated alga that is normally found suspended in the water column. It was first identified in North America in 1985 and it is not known if it was introduced artificially (e.g., an invasive species or missed in previous surveys). Toxin production mainly kills fish and appears to have little effect on cattle or humans. This distinguishes it from red tide, which are algal bloom whose toxins lead to harmful effects in people. Although no harmful effects are known, it is recommended not to consume dead or dying fish exposed to a P. parvum bloom.

  11. P. parvum grows grows in a salinity range of 0.1%-10% with an optimum at 0.3-6% although strains collected in different places appear to have different salinity tolerances. The alga produces dimethylsulfoniopropionate (DMSP) and other unknown polyols, likely as an adaptation to osmoregulation. The environment must be between 2 and 30° C for P. parvum to live. Growth at a pH as low as of 5.8 has been observed, but cells typically prefer higher pH ranges. .1-10% = 1000 - 100,000 ppm. .3% - 6% = 3000 – 60,000 ppm Ocean water 35,000 ppm = 3.5% salt = 35 PSU practical salinity unit

  12. “You can clearly see the two flagella, haptonema (extra flagella like structure) and refractile bodies (spheres) within cells.  All characteristic of Prymnesium parvum”

  13. Wisconsin Information – Prymnesium parvum

  14. PrymnesiumParvum Cells/mL WANA            345,320                                                                        MDP                242,300                                                                     WTL                304,600                                                                     UMR               102,200                                                           DBP                   94.600                                                           UBD                       460  Oklahoma – kills 50k+

  15. USGS Notes on Fish Histology “A preliminary assessment is there certainly seems to be a toxic response. The livers and the gills appear the most severely affected. Gills have lifting of the epithelium, thickening of the epithelium over on the secondary lamellae, in areas leading to fusion. There is proliferation of the mucous cells and some species have inflammation in the gills as well. “

  16. Golden Algae Photo’s courtesy of WVDEP’s Mike Carico/Brad Swiger

  17. Photo – WVDEP Jeff Bailey DOH Garage 9/18/09

  18. Looking Forward... • Much more information to be gathered • Much more data analysis • Much more coordination • Load reductions • Restoration

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