The Plunger Sampling Pipettes acc. to Hensen are simple but precise tools to retrieve small plankton sub-samples. The volume of the sub-samples is defined by the accurately machined geometry of the piston, avoiding any volume errors. Each pipette is delivered completely with dilution bottle and stopper.

As discribed in UNESCO’s Phytoplankton Manual (published 1978) the Combined Plate Chamber allows you to look at sedimented plankton samples from a very short distance. How? Put the sample into a cylinder on top of the rectangular plexiglass plate with a thin base plate, let the fixed plankton concentrate and after sedimentation simply push the cylinder with excess liquid aside. The handling support underneath the plate will collect the extra water from the cylinder. You can now take the plate and examine the sample under an inverted microscope. Three calibrated cylinder sizes are provided with each set allowing to analyse different sample volumes.

Based on the Bogorov design the Counting Chambers for Zooplankton have been designed for easy enumeration of large amounts of zooplankton. A plexiglass block with precisely machined grooves and a polished bottom provides best possible transparency. Due to the small dimensions all chambers can be used with stereo microscopes. The standard models are manufactured with grooves in meander profile. The Ballast Water models, modified by Gollasch, are manufactured with grooves in line pattern, bisect line pattern and grid pattern. This very much alleviates the use of the chambers on moving vessels even under choppy sea conditions.

The Plankton Chamber acc. to Kolkwitz has been designed for easy enumeration of small amounts of phytoplankton. Due to the small dimensions the chambers can be used with standard microscopes, inverted microscopes and stereo microscopes. Made from glass the chambers are precisely adjusted to their nominal volume. The cover plates are marked with an orthogonal counting grid for an easy zoning of the sample.

Tubular Plankton Chambers are used for microscopic analysis of plankton samples. The sedimentation process is carried out inside the original inspection cylinder to avoid any falsification of the samples during handling. The chamber consists of a plexiglass tube with an unscrewable metal base ring holding a thin base plate of just 0.2 mm. Analysis of the sample is made on inverted microscopes. Our scope of delivery includes one chamber, one glass cover plate and a set of 50 glass base plates.

Folsom's Plankton Sample Divider provides a fast and easy method to divide large plankton samples into an amount suitable for examination. This instrument divides samples in halves. Simply repeat the operation until the desired amount is left. The transparent plastic drum of the divider is suitable for samples up to 100 ml. The base is provided with a water level and two levelling screws for easy horizontal alignment.

The Surber Sampler has been designed to gather samples of insects, larvae and other forms of aquatic life found in shallow flowing waters. In contrast to the AQEM sampler, this kick net is equipped with a down-foldable frame which defines an exact area on the ground which is to be disturbed. Ideal for water depth of 30 to 45 cm.

The IKMT Isaacs-Kidd Midwater Trawl Net (also known as HPN Hamburg Plankton Net) is the standard net for collection of larger quantities of macrozoplankton and micronekton. A wide U-shaped diving vane (depressor) keeps the mouth of the net open and exerts a depressing force, keeping the trawl net in any desired depth for extended periods at towing speeds from 0.5 to 4 knots.