http://www.bbc.co.uk/news/science-environment-32346223
1.waders= high waterproof boots or pants worn for walking or standing in deep water especially while fishing
2.angler = a person who catches fish for pleasure : FISHERMAN
3.hyporheic = The hyporheic zone is a region beneath and alongside a stream bed, where there is mixing of shallow groundwater and surface water
4. Upwelling = is a process in which deep, cold water rises toward the surface. This graphic shows how displaced surface waters are replaced by cold, nutrient-rich water that “wells up” from below. Winds blowing across the ocean surface push water away
http://en.wikipedia.org/wiki/Hyporheic_zone
http://www.waterencyclopedia.com/St-Ts/Stream-Hyporheic-Zone-of-a.html
Christine Salientes: https://www.google.com.ph/search?q=upwelling&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=EDA0VafHEKPTmAWvvYHACg&ved=0CFIQsAQ