The primary productivity of flocculent marine snow (fragile and amorphous macroscopic particulates) was measured for the first time using samples collected quantitatively in surface waters of the Southern California Bight….
Alldredge, Alice L., and James L. Cox. 1982. "Primary productivity and chemical composition of marine snow in surface waters of the Southern California Bight." Journal of Marine Research 40, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1595