Calculations of abundance of midwater fishes in the families Myctophidae, Gonostomatidae, Photichthyidae, and Stemoptychidae for the 1000 m water column were made in cold-core rings and in the nearby Sargasso Sea and Slope Water….
Backus, Richard H., and James E. Craddock. 1982. "Mesopelagic fishes in Gulf Stream cold-core rings." Journal of Marine Research 40, (S). https://elischolar.library.yale.edu/journal_of_marine_research/1629