Dynamics of nutrient cycling of the Valdes Bay-Punta Cero pond system (Peninsula Valdes, Patagonia) Argentine

Valdes Bay constitutes a very interesting land-sea interface (LSI) at Peninsula Valdes. A gravel bank separates the bay from the open sea. The general characteristics (physical, chemical and biological) of this ecosystem and the chemical composition of the seawater coming in and out were analyzed. N...

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Bibliographic Details
Main Authors: Esteves, Jl, Varela, De
Format: Article in Journal/Newspaper
Language:English
Published: Gauthier-Villars 1991
Subjects:
NUTRIENT CYCLE
LAND-SEA INTERFACE
PENINSULA VALDES
PATAGONIAN
SOUTH ATLANTIC OCEAN
Argentine
Bay Punta
Patagonia
South Atlantic Ocean
Online Access:https://archimer.ifremer.fr/doc/00101/21273/18883.pdf
https://archimer.ifremer.fr/doc/00101/21273/
Description
Summary:Valdes Bay constitutes a very interesting land-sea interface (LSI) at Peninsula Valdes. A gravel bank separates the bay from the open sea. The general characteristics (physical, chemical and biological) of this ecosystem and the chemical composition of the seawater coming in and out were analyzed. Nutrient cycling (nitrogen and phosphate) was very intense and involved a high primary productivity. These nutrients were principally produced at the gravel bank, where oxygen was consumed by heterotrophic activity and nitrification processes. The latter process consumed 1 to 7% of the oxygen. Extrapolating to the 35-km bank, a value of 6.8 metric tons of nitrogen would be produced daily.

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