The filtratiion rate of Bivalves
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The filtratiion rate of Bivalves

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a n experiment to see what bivalves filter water and clean water the fastest and the clean the water the best

a n experiment to see what bivalves filter water and clean water the fastest and the clean the water the best

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  • Matthew Im David in Maine,i was wondering if you use to have a cottage in Ocean Park when you were a kig in Maine.If so i knew your father Matt,I was hoping to connect,but i guess i wont find him in this life.lol.Been looking.My email is spic472000@yahoo.com Ty
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The filtratiion rate of Bivalves The filtratiion rate of Bivalves Presentation Transcript

  • Shellfish Filtration Rates• I wanted to find out 2 things about local shellfish 1. Which shellfish filters and cleans water the fastest 2. Which shellfish cleans and filters water the best• The shellfish I chose to compare were: • Mussels • Oysters • Hard Shell Clam • Soft Shell Clam
  • Getting Started Location: Mt Sinai Harbor (Low tide) Field work: Collect shellfish and algae rich seawater (algae is the primary food for filter feeding shellfish) Collection Methods: •Digging for clams and collecting Oysters and mussels •Used an absorbent rag to wipe down and collect algae from tidal flats then rung out into bucket
  • Setting Up The Experiment1. Chose location with good natural light for comparing water clarity (white background)2. Mixed algae rich seawater for consistency3. Placed 6 cups of seawater/Algae mixture into each tank 4. Placed shellfish of equal mass into each tank 5. Left one tank empty as control for comparison 6. Compare the clarity of water in each tank to the control tank at regular intervals to Judge filtration rate and effectiveness
  • 20 Minutes•Mussels are already feeding and the water in the Mussel tank is twiceas clear as the others•The other shellfish are not open and not feeding
  • 60 Minutes•Water in the Mussel tank looks completely clear•Oysters are open but water in their tank does not look clear
  • 2 Hours 30 Minutes•Soft Shell Clam tank is getting more clear but not as good as themussels•Oysters and Hard Clam are open and feeding
  • 5 Hours- End Experiment•Mussels and Soft Shell Clam tanks are completely clean of algae•Hard shell Clam water has improved a lot but there is still algae• Oysters water is a little mire clear than the control tank
  • Speed and Quality of Filtration120%100% Mussel80% Oysters60% Hard shell Clam Soft Shell Clam40% Control20% 0% 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Minutes
  • Conclusion• Mussels clean water the fastest.• Mussels and Soft Shell Clams clean water the best