BioChem: Planktonic Foraminifera collected in the Equatorial and North Pacific, 1970

Twenty-nine plankton tows were collected at different water depths in the equatorial and northern Pacific Ocean during the Hudson 70 cruise. Thirty planktonic foraminiferal species, belonging to eleven genera and three families, have been identified. Absolute and relative abundance of individual species, their size, structural modifications, and coiling directions of the tests are compared with the physical and chemical parameters of the Pacific Water masses.