. Bulletin. Science. SPRING TIDE CONDITIONS FLOOD:EBB RATIO OF BACTERIAL DENSITY F<E /. w^m â â , NEAP SPRING TIDAL RANGE ⺠Fig. 7. Hypothesized bank-washing model (see text for explanation). Photographs are from Station 1 where the bank is covered with water during spring high tides. sink for FIB, and that Ballona Creek may be a significant source for these bacteria, these premises were based on only 16 days of sampling at five stations over a one year period. Future studies need to focus on establishing overall hydrody- namics and tidal flushing of the wetlands, and determining mass bala

. Bulletin. Science. SPRING TIDE CONDITIONS FLOOD:EBB RATIO OF BACTERIAL DENSITY F<E /. w^m â â , NEAP SPRING TIDAL RANGE ⺠Fig. 7. Hypothesized bank-washing model (see text for explanation). Photographs are from Station 1 where the bank is covered with water during spring high tides. sink for FIB, and that Ballona Creek may be a significant source for these bacteria, these premises were based on only 16 days of sampling at five stations over a one year period. Future studies need to focus on establishing overall hydrody- namics and tidal flushing of the wetlands, and determining mass bala Stock Photo
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. Bulletin. Science. SPRING TIDE CONDITIONS FLOOD:EBB RATIO OF BACTERIAL DENSITY F<E /. w^m â â , NEAP SPRING TIDAL RANGE ⺠Fig. 7. Hypothesized bank-washing model (see text for explanation). Photographs are from Station 1 where the bank is covered with water during spring high tides. sink for FIB, and that Ballona Creek may be a significant source for these bacteria, these premises were based on only 16 days of sampling at five stations over a one year period. Future studies need to focus on establishing overall hydrody- namics and tidal flushing of the wetlands, and determining mass balance of FIB entering and leaving this system during varying tidal cycles. Twenty-four hour studies employing frequent sampling will better determine the flux of FIB, es- pecially during daylight hours when UV light can presumably reduce densities. More research is needed to determine the fate and transport of FIB within this system, retention and regrowth in wetland sediments, and purifying process within the tidal channels and on tidally submerged vegetation. As restoration actions are implemented, changes may occur in the dynamics of the wetland habitat and ecosystem conducive to water purification and FIB removal. At the same time, populations of vertebrates, especially birds, may significantly increase, thus in- creasing FIB densities. Therefore, we need to track these changing conditions and populations to better understand the consequences of restoration actions as this wetland returns to a more natural condition. Acknowledgements Kili Sueda (Loyola Marymount University), Sachiko Chyan (Marlborough High School) and Swati Yanadamala (Chadwick High School) played key roles in this study by helping with field and lab work. It was rewarding to work with. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. S