Figure 33. Kofoid plankton sampling bucket devised by Charles A. Kofoid of the University of California at Berkeley in 1905. It was used on board the vessel LOMA out of San Diego. This bottle was used to acquire a volume of water in which the plankton would be counted for quantitative studies of life in the sea. This instrument closely resembled a Pettersson bottle.
Photo Category: Oceanography - Historical instruments