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Along-Estuary Spatial Variability and Driving Forces

Along-Estuary Spatial Variability and Driving Forces. Group 3 - Question A (Christine Cass, Alejandra Sanchez, Marianne Corriveau, Hiromu Ishiyama, Genki Terauchi, Dubrava Krievskaya, Anna Malek, Sung Yong Kim). Study Site - Yaquina Bay. Cruise 2 - Aug 20, 2013 (Ebb Tide).

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Along-Estuary Spatial Variability and Driving Forces

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  1. Along-Estuary Spatial Variability and Driving Forces Group 3 - Question A (Christine Cass, Alejandra Sanchez, Marianne Corriveau, Hiromu Ishiyama, Genki Terauchi, Dubrava Krievskaya, Anna Malek, Sung Yong Kim)

  2. Study Site - Yaquina Bay Cruise 2 - Aug 20, 2013 (Ebb Tide) Cruise 3 - Aug 21, 2013 (Flood Tide)

  3. Methods Equipment: underway flow-through CTD ADCP

  4. Temperature (ºC) Temperature (ºC) Ebb Flood

  5. Salinity (PSU) Ebb Flood

  6. Dissolved Oxygen (ml/l) Ebb Flood

  7. Chlorophyll (mg/m3) Ebb Flood

  8. Upper Bay Trawl Station: Estuarine Species: - English Sole - Ling cod - Pacific staghorn sculpin - Buffalo sculpin - Penpoint gunnel Oceanic Species: - NONE! Outer Bay Trawl Station: Estuarine Species: - English Sole - Ling cod - Pacific staghorn sculpin - Buffalo sculpin - Penpoint gunnel Oceanic Species: - Sand Dab, - Sand Lance Upper Trophic Level Trends

  9. Tides & Currents

  10. Freshwater Influence

  11. What’s Happening Offshore: Sea Surface Currents NANOOS, High Frequency Radar http://nvs.nanoos.org/HFRadar

  12. What’s Happening Offshore? Upwelling signature • High chl • Low temp • High salinity • Low DO (According to Jane)

  13. What’s Happening Offshore? 47.5 N ug/L Satellite derived Chl-a 4 days composites Aug 19-22 41 N 127 W 123 W

  14. Back to the Question: What is the along-estuary spatial variability in physical, biological and chemical properties and what are the driving forces that create these variations? • Mouth of Bay: • Higher S, Chl • Lower T, DO • Major forces? • Tidal • Offshore processes (wind-driven upwelling)

  15. Do you have any questions? Thank you!!!

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