Many Planktonic organisms are well adapted to evade such a method. The boat-pushed nets we ordinarily use have proven unsatisfactory for collecting a quantifiable sample. Unfortunately, my ordinary business is conducted with ichthyonekton, not ichthyoplankton. Thus, I am seeking precedents for the collection of fish larvae via a stationarily deployed, passive gear that samples a relatively large volume of water, perhaps with a pump. Any advice appreciated.
Many Planktonic organisms are well adapted to evade such a method.