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WARD’S Dissolved Oxygen & Aquatic Primary Productivity Lab Activity

Safe and Compact Titration Assemblies Provided

  • Includes extensive background information
  • Illustrations of aquatic organisms
Using the Winkler method with the materials included in this lab activity, students measure and analyze dissolved oxygen concentration in samples to determine biological oxygen demand and calculate primary productivity as a function of light intensity. Includes instructions on water sampling, an illustrated section to help identify aquatic organisms, and extensive background information on topics such as oxygen and water, primary productivity, oxygen cycle, photosynthesis, the carbon cycle, and more. To collect your own water sample, you will need a water sampler, available separately. If a collected water sample is not available, an algae culture is included.

Accessories information: Refill kits contain only consumable component items and do not contain additional copy masters.

Ordering information: Coupon is included for redemption of perishable materials. Redeem by mail, phone, fax, or email.

Delivery information: Due to the nature of this item, it cannot be shipped by air under any circumstances. Please select ground shipping at time of checkout.



Item # Description No. of Lab Groups Unit Availability Price Quantity
470009-224 Kit, Ward's Dissolved Oxygen & Aquatic Primary Production Lab, 32 Students in 8 Lab Groups
Hazardous Product
8 Kit of 1 Retrieving Restricted
470009-228 Dissolved Oxygen & Aquatic Primary Production Refill
8 Kit of 1 Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email


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