Methods were developed for determining rates of denitrification in coastal marine sediments by me... more Methods were developed for determining rates of denitrification in coastal marine sediments by measuring the production of N 2 from undisturbed cores incubated in gas-tight chambers. Denitrification rates at summer temperatures (23°C) in sediment cores from Narragansett ...
Coastal areas receive significant amounts of nutrients (nitrogen, phosphorus, silicon) mostly fro... more Coastal areas receive significant amounts of nutrients (nitrogen, phosphorus, silicon) mostly from land-based sources, which contribute to increased biological productivity often exceeding that naturally found in coastal and marine environments. Most coastal zones of southern Europe are naturally oligotrophic with relatively small freshwater discharges. Studies of circulation and mixing processes over the continental shelf off the Ebro River delta are motivated by the need to understand transport pathways of natural and anthropogenic discharges affecting the adjacent marine environment. This paper investigates the characteristics of the last 45 km of the Ebro River in NE Spain, in terms of physiographic conditions, river discharges and hydrochemical and biological environment at three different periods in the annual cycle.
Methods were developed for determining rates of denitrification in coastal marine sediments by me... more Methods were developed for determining rates of denitrification in coastal marine sediments by measuring the production of N 2 from undisturbed cores incubated in gas-tight chambers. Denitrification rates at summer temperatures (23°C) in sediment cores from Narragansett ...
Coastal areas receive significant amounts of nutrients (nitrogen, phosphorus, silicon) mostly fro... more Coastal areas receive significant amounts of nutrients (nitrogen, phosphorus, silicon) mostly from land-based sources, which contribute to increased biological productivity often exceeding that naturally found in coastal and marine environments. Most coastal zones of southern Europe are naturally oligotrophic with relatively small freshwater discharges. Studies of circulation and mixing processes over the continental shelf off the Ebro River delta are motivated by the need to understand transport pathways of natural and anthropogenic discharges affecting the adjacent marine environment. This paper investigates the characteristics of the last 45 km of the Ebro River in NE Spain, in terms of physiographic conditions, river discharges and hydrochemical and biological environment at three different periods in the annual cycle.
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Papers by Nixon Summer