Influence de la température et du développement planctonique sur le mécanisme d'accumulation de la matière organique

✍ Scribed by R. A. Daumas

• Publisher: Springer-Verlag
• Year: 1974
• Tongue: English
• Weight: 493 KB
• Volume: 26
• Category: Article
• ISSN: 0025-3162
• DOI: 10.1007/bf00388880

✦ Synopsis

Influence of Temperature and Planktonic Development on the Mechanism of Accumulation of Organic Matter in the Surface of the Sea

The surface "skin" of the ocean is exposed to very particular conditions (ultra-violet irradiation, oxygenation, bubbling), which produce an accumulation of planktonic constituents. Many important parameters were studied in surface and subsurface waters of an inshore area of the North Mediterranean Sea over a period of I year. Differences in temperature and salinity between surface and subsurface layers were observed in the sunnier. Nitrates and phosphates are more abundant in the surface layer before the plankton bloom. Particulate and dissolved organic matter is 2 to 5 times more abundant in the surface than in the subsurface layer. The plankton bloom, very significant in the surface layer, is succeeded by an accumulation of carbohydrates. The surface microlayer of the sea may be considered a valuable indicator of planktonic development in the euphotic layer.