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1948

Meteorology

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Sound As A Tool In Marine Ecology, From Data On Biological Noises And The Deep Scattering Layer, Martin W. Johnson Jan 1948

Sound As A Tool In Marine Ecology, From Data On Biological Noises And The Deep Scattering Layer, Martin W. Johnson

Journal of Marine Research

In studies of specific populations or communities of different animals, the investigator is concerned largely with relative concentrations of individuals and with their feeding and breeding behavior, migratory habits, etc., as individuals or as groups. Information on these aspects is fundamental to an analysis and understanding of the faciors that operate as controls within the population.


Water Tables In Marine Beaches, K. O. Emery, J. F. Foster Jan 1948

Water Tables In Marine Beaches, K. O. Emery, J. F. Foster

Journal of Marine Research

Beach slopes, sand movements, and sand composition have been studied by a number of organizations and individuals, but the interstitial water and the possible interrelations between beach characteristics and changing water levels within the beach seem to have received little attention....