1 / 19

Statistical Study of Host Fish for the Round Pigtoe Mussel ( Plueurobema coccineum )

Statistical Study of Host Fish for the Round Pigtoe Mussel ( Plueurobema coccineum ). By Meggie Marzec. www.darbycreeks.org/Round%20pigtoe%20Big%20Darby%208-2-03%20005.jpg. Introduction. Mussels clean rivers and streams Indicate health of river system

Gabriel
Download Presentation

Statistical Study of Host Fish for the Round Pigtoe Mussel ( Plueurobema coccineum )

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Statistical Study of Host Fish for the Round Pigtoe Mussel (Plueurobema coccineum) By Meggie Marzec www.darbycreeks.org/Round%20pigtoe%20Big%20Darby%208-2-03%20005.jpg

  2. Introduction • Mussels clean rivers and streams • Indicate health of river system • Round Pigtoe threatened in MN, native to St. Croix www.winona.edu/geology/MRW/mrwimages/DallesStCroix.jpg

  3. Introduction www.tpwd.state.tx.us/nature/education/tracker/mussels/images/reproduction.gif

  4. Introduction Glochidia with and without tissue Previous studies show there may be a difference Photo taken by Dr. Miller

  5. Previous Studies • Spotfin shiner, common shiner and hornyhead chub are host fish • Golden shiner and creek chub are marginal host fish • From 2003 Host Fish Suitability Trial

  6. Previous Studies • 2003 Study, glochidia without and with tissue as life cycle stages

  7. Goals • Find which host fish is statistically stronger: hornyhead chub or common shiner • Find new host fish • Study glochidia without tissue and with tissue as life cycle stages

  8. Procedure • Collect host fish and mussels from St. Croix River • Infest fish with glochidia and check siphonate every three days • Fish in statistical study kept in individual aquaria

  9. Results Table 1: Percent Transformation for hornyhead chub and spotfin shiner

  10. Results

  11. Results

  12. Results

  13. Results

  14. Conclusions • Common shiner, mimic shiner, blackchin shiner and longnose dace are host fish • Not able to determine difference between glochidia without tissue and with tissue • It appears that related fish host the same mussel

  15. Practical Applications • Results of the statistically stronger host fish could be used to reintroduce the Round Pigtoe mussel by making raising mussels in a laboratory setting more efficient • By finding that related fish host the same mussel, host suitability trials can be simplified

  16. Future Studies • Repeat the study with many species of fish from the same family • Conduct a Histological study with pictures of mussels at different life cycle stages to deterimine if glochidia without and with tissue are separate life cyce stages

  17. Acknowledgements • Mark Hove • Kari, Vik and Kaia • Ms. Fruen • Dr. Miller

  18. Acknowledgements

  19. Statistical Study of Host Fish for the Round Pigtoe Mussel (Plueurobema coccineum) By Meggie Marzec www.darbycreeks.org/Round%20pigtoe%20Big%20Darby%208-2-03%20005.jpg

More Related