United States Department of the Interior, Oscar L, Chapman, Secretary 

 Fish and Wildlife Se^^rice, Albert M» Day, Director 



HIGH SPEED PLANKTON SAMPLERS 



1» A High Speed Plankton Sampler (Model Gulf I-A) 

 by Edgar Lo Arnold, Jr, 



Fishery Research Biologist 

 Gulf Fishery Investigations 



2# An All-metal Plankton Sampler (Model Gulf III) 

 by Jack Wo Gehringer 



Fishery Research Biologist 

 Gulf Fishery Investigations 



Special Scientific Report; Fisheries No» 88 



