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Introduction

CALLINECTES SAPIDUS AND UCA SPP. MEGALOPAE INCREASE DUE TO WIND EVENTS ALONG EACH SIDE OF DELAWARE BAY By Patrick Reynolds Marine Academy of Science and Technology. Introduction. Background. Final stage 1 mm width 21-49 days. Types of Megalopae Studied. Callinectes sapidus. Uca spp.

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Introduction

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  1. CALLINECTES SAPIDUS AND UCA SPP. MEGALOPAE INCREASE DUE TO WIND EVENTS ALONG EACH SIDE OF DELAWARE BAYBy Patrick ReynoldsMarine Academy of Science and Technology

  2. Introduction

  3. Background • Final stage • 1 mm width • 21-49 days

  4. Types of Megalopae Studied Callinectes sapidus Uca spp.

  5. Original Locations Moby’s Dock at Atlantic Highlands, NJ Navesink River Rd., Monmouth Beach, NJ

  6. New Location • Delaware Bay

  7. New Locations Continued… New Jersey Side: Cape May, NJ Coast Guard Base Delaware Side: Lewes, DE Broadkill River

  8. Effects of Wind • DE Buoy 44009

  9. Hypothesis H-Wind events will result in significant increases in the Callinectes sapidus and Uca spp. megalopae population caught along the New Jersey and Delaware coasts of the Delaware Bay.

  10. Null and Alternate H0-Wind events will have no effect on the Callinectes sapidus and Uca spp. megalopae population caught along the New Jersey and Delaware coasts of the Delaware Bay. HA-Wind events will result in significant decreases in the Callinectes sapidus and Uca spp. megalopae population caught along the New Jersey and Delaware coasts of the Delaware Bay.

  11. Method

  12. Equipment • Life Jackets • Megalopae Catching Device(MCD) • Filter • Container • Squirt Bottle • Sieve • Buckets

  13. MCDs FILTER PVC PIPE

  14. Deployment

  15. Retrieval

  16. Soak Filters

  17. Pour through Sieve

  18. Fill Up Squirt Bottle and Container

  19. Remove Megalopae from Sieve

  20. Results • UCA spp. caught more frequently • Maximum megalopae caught • Delaware side • Uca spp. • 102.25

  21. GRAPH 1 CALLINECTES SAPIDUS MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1996 GRAPH 2 UCA spp. MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1996

  22. GRAPH 3 CALLINECTES SAPIDUS MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1997 GRAPH 4 UCA spp. MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1997

  23. GRAPH 5 CALLINECTES SAPIDUS MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1998 GRAPH 6 UCA spp. MEGALOPAE PERCENT OF MAXIMUM CATCH FOR DE AND NJ IN 1998

  24. TABLE 1 CATCH DATA FOR UCA SPP. MEGALOPAE FROM 1996-1998 OF DELAWARE AND NEW JERSEY TABLE 2 CATCH DATA FOR CALLINECTES SAPIDUS MEGALOPAE FROM 1996-1998 OF DELAWARE AND NEW JERSEY

  25. G-Test • Statistical Analysis • P-value 0.05 • Degree of freedom = 3 • Greater than 7.815 would prove difference

  26. G-Test Continued…

  27. Conclusion

  28. Errors • Method • Location • Human Error

  29. Acknowledgements • Dr. Peter M. Rowe (Mentor) • Dr. Cecilia Natunewicz (Delaware Bay Data) • Mrs. Barbara Boyd (Instructor) • Ms. Liza Baskin (Instructor)

  30. Bibliography • Epifanio, C.E. (n.a.) Dispersal and Recruitment of Blue Crab Larvae in Delaware Bay. SciVerse. Retrieved May 6, 2011, from http://www.sciencedirect.com/science/article/pii/0272771484900027 • Epifanio, CE., Garvine, RW. (2001) Larval transport on the Atlantic continental shelf of North America: a review.Estuar Coast Shelf Scie, Vol 52:51-77 • Epifanio, C.E. (1995). Transport of Blue Crab Larvae in the Waters Off Mid-Atlantic States. Ingentaconnect. Retrieved May 6,2011, from http://www.ingentaconnect.com/content/umrsmas/bullmar/1995/00000057/00000003/art00015. • Garvine, R. (2002). Transport and Recruitment of Blue Crab Larvae: a model with Advection and Mortality.ScienceDirect. Retrieved May 2, 2011, from http://www.sciencedirect.com/science/article/pii/S0272771496901614 • Goodrich, David.(n.d.). Blue Crab Megalopal Influx to Chesapeake Bay. Elsevier. Retrieved May 15, 2011, from http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WDV-4DV0M3D-GX&_user=10&_coverDate=09%2F30%2F1989&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1752858179&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2f0ee400ac35f46508b3975c7ff6e1c1&searchtype=a • Jones, M.B., Epifanio, C.E. (2005) Patches of Crab Megalopae in the mouth of Delaware Bay- An analysis of spatial scales. Journal of Shellfish Research, Vol. 24: 261-267.

  31. Bibliography Continued… • Jones, M. (1995) Settlement of Brachyuran Megalopae in Delaware Bay: an analysis of time series data. Marine Ecology Progress Series. Vol 125, 67-76. • Little, K.T., Rowe, P.M. (1988) Dispersal and recruitment of fiddler crab larvae in the Delaware River estuary. Marine Ecology Progress Series, Vol 43, 181-188. • Natunewicz, CC. (2000) Patchiness of crab larvae in coastal waters: a multi-scale analysis. PhD dissertation, University of Delaware, Newark, DE. • Natunewicz, CC, Epifanio, CE. (2001) Spatial and temporal scales of zoeal patches in coastal waters.Marine Ecology Progress Series, Vol 212:217-222. • Perry, H., Eleuterius, C., Trigg, C., and Warren, J. (1995) Settlement Patterns of Callinectes Sapidus Megalopae in Mississippi Sound: 1991, 1992. 57(3), 821-833. • Petrone, C., Jones, M.B., Natunewicz, C., Epifanio, C.E. (2005) Dynamics of larval patches: spatial distribution of fiddler crab larvae in Delaware Bay and adjacent waters.Marine Ecology Progress Series, Vol 293: 177-190. • Rowe, P.M., Epifanio, C.E. (1994) Tidal stream transport of weakfish larvae in Delaware Bay, USA.Marine Ecology Progress Series, Vol. 110: 105-114. • Van Montfrans, J., Epifanio, C., Knott, D., Lipcius, R., Mense, D., and West, T. (1995) Settlement of Blue Crab Post larvae on Western North Atlantic Estuaries. 57(3), 834-854.

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