Limnological standard plankton nets for vertical operations
The Plankton Nets acc. to Apstein, used in limnological investigations, are manufactured in various shapes and sizes. The quantitative versions are equipped with plastic cowls, reducing the mouth opening of the net and thus caring for a higher filtering efficiency. The closing versions are additionally equipped with a messenger-triggered closing mechanism, functioning like a butterfly valve. This closing mechanism allows for sampling defined depth layers.
For easy retrieval, the sample is concentrated inside a removable net bucket with a sieve gauze-covered side window. The standard mesh size of the Plankton Nets acc. to Apstein is 55 microns, which is used for the collection of phytoplankton. For acollection of zooplankton, the nets are available with a mesh size of 335 µm. For special requirements select mesh sizes between 55 and 780 µm (Mesh sizes below 55 µm are available at an extra charge).
Length |
50 cm |
Diameter |
8.5 cm (cone with closing mech.) |
Diameter |
3.2 cm (lower) |
Opening area |
0,00567 m² |
Product ID |
438 020 |