Using the research submersible ALVIN, we have observed and collected marine• snow (fragile macroscopic aggregates), in two basins off Southern California. Marine snow was present throughout the water column, with several layers of higher concentrations in the mesopelagic and bathypelagic zones. We collected the first intact specimens from the deep sea at 1000 and 1650 m depths and examined these by light and electron microscopy....
Silver, Mary W., and Alice L. Alldredge. 1981. "Bathypelagic marine snow: Deep-sea algal and detrital community." Journal of Marine Research 39, (3). https://elischolar.library.yale.edu/journal_of_marine_research/1556