Possible interactions between plankton and semidiurnal internal tides. II. Deep thermoclines and trophic effects

Previous results of a computer model suggested a number of possible interactions between semidiurnal internal tides and phytoplankton. One extension considers a phytoplankton grid (swimming speed 1-2 m h-1) that is initially distributed at sunset in the upper layer of a water column characterized by a relatively deep mean thermocline depth (25 m) . The organisms undergo a diurnal vertical migration while the water column is simultaneously disturbed by successive semidiurnal internal tides...

Possible interactions between phytoplankton and semidiurnal internal tides

Computer programs are used to analyze some possible interactions between phytoplankton and semidiurnal internal tides. The internal tides are modeled in a two-layer ocean using small amplitude wave theory . Wave characteristics representative of southern California coastal waters are used as input for the equations...

Latitudinal relationships among temperature and selected plant nutrients along the west coast of North and South America

The relationships among temperature and selected plant nutrients (nitrate, phosphate and silicate) were determined in marine waters for 10° latitudinal (longitudinal) bands along the west coast of North and South America. Data within each 10° band were obtained from the U.S. National Oceanographic Data Center, the Canadian Oceanographic Data Center or major oceanographic institutions...

Christus in quo omnia constant. Koncepcja Chrystusa Uniwersalnego u P. Teilharda de Chardin

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