Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs
Abstract The temporal dynamics of the concentrations of nitrate (N), phosphate (P), and the N:P ratio in the upper water column (200–600 m) of the Mediterranean (MED) Sea were investigated using observational data (~123,100 data points) collected between 1985 and 2014. The studied variables were fou...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-05-01
|
| Series: | Geophysical Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/2016GL068788 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850272537449070592 |
|---|---|
| author | Ji‐Young Moon Kitack Lee Toste Tanhua Nurit Kress Il‐Nam Kim |
| author_facet | Ji‐Young Moon Kitack Lee Toste Tanhua Nurit Kress Il‐Nam Kim |
| author_sort | Ji‐Young Moon |
| collection | DOAJ |
| description | Abstract The temporal dynamics of the concentrations of nitrate (N), phosphate (P), and the N:P ratio in the upper water column (200–600 m) of the Mediterranean (MED) Sea were investigated using observational data (~123,100 data points) collected between 1985 and 2014. The studied variables were found to evolve similarly in the western and eastern MED Sea. In both basins, the N concentration increased during the first part of the observational period (1985–1998), and the temporal trend of N was broadly consistent with the history of riverine and atmospheric nitrogen input from populated areas in Europe, with a lag period of 20 years. In subsequent years, the N concentration was high and relatively constant between 1998 and 2005, after which N decreased gradually, although the decreasing trend was indistinct in the western basin. In particular, the trend of constant then declining N after 1998 is consistent with the history of pollutant nitrogen emissions from the European continent, allowing a 20 year lag following the introduction of regulation of pollutant nitrogen in the 1970s. The three‐phase temporal transition in P in both basins was more consistent with the riverine phosphorus input, with a lag period of 20 years. Our analysis indicates that the recent dynamics of N and P in the upper MED Sea has been sensitive to the dynamics of anthropogenic nitrogen and phosphorus input from atmospheric deposition and rivers. |
| format | Article |
| id | doaj-art-c3916c0a26b145329a329b3bf09efe5e |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2016-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-c3916c0a26b145329a329b3bf09efe5e2025-08-20T01:51:46ZengWileyGeophysical Research Letters0094-82761944-80072016-05-0143105243525110.1002/2016GL068788Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputsJi‐Young Moon0Kitack Lee1Toste Tanhua2Nurit Kress3Il‐Nam Kim4School of Environmental Sciences and Engineering POSTECH Pohang South KoreaSchool of Environmental Sciences and Engineering POSTECH Pohang South KoreaMarine Biogeochemie GEOMAR Helmholtz Centre for Ocean Research Kiel GermanyIsrael Oceanographic and Limnological Research National Institute of Oceanography Haifa IsraelDepartment of Marine Science Incheon National University Incheon South KoreaAbstract The temporal dynamics of the concentrations of nitrate (N), phosphate (P), and the N:P ratio in the upper water column (200–600 m) of the Mediterranean (MED) Sea were investigated using observational data (~123,100 data points) collected between 1985 and 2014. The studied variables were found to evolve similarly in the western and eastern MED Sea. In both basins, the N concentration increased during the first part of the observational period (1985–1998), and the temporal trend of N was broadly consistent with the history of riverine and atmospheric nitrogen input from populated areas in Europe, with a lag period of 20 years. In subsequent years, the N concentration was high and relatively constant between 1998 and 2005, after which N decreased gradually, although the decreasing trend was indistinct in the western basin. In particular, the trend of constant then declining N after 1998 is consistent with the history of pollutant nitrogen emissions from the European continent, allowing a 20 year lag following the introduction of regulation of pollutant nitrogen in the 1970s. The three‐phase temporal transition in P in both basins was more consistent with the riverine phosphorus input, with a lag period of 20 years. Our analysis indicates that the recent dynamics of N and P in the upper MED Sea has been sensitive to the dynamics of anthropogenic nitrogen and phosphorus input from atmospheric deposition and rivers.https://doi.org/10.1002/2016GL068788Mediterranean Seanitratephosphatepollutant nitrogennitrogen fixationdenitrification |
| spellingShingle | Ji‐Young Moon Kitack Lee Toste Tanhua Nurit Kress Il‐Nam Kim Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs Geophysical Research Letters Mediterranean Sea nitrate phosphate pollutant nitrogen nitrogen fixation denitrification |
| title | Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs |
| title_full | Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs |
| title_fullStr | Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs |
| title_full_unstemmed | Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs |
| title_short | Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs |
| title_sort | temporal nutrient dynamics in the mediterranean sea in response to anthropogenic inputs |
| topic | Mediterranean Sea nitrate phosphate pollutant nitrogen nitrogen fixation denitrification |
| url | https://doi.org/10.1002/2016GL068788 |
| work_keys_str_mv | AT jiyoungmoon temporalnutrientdynamicsinthemediterraneanseainresponsetoanthropogenicinputs AT kitacklee temporalnutrientdynamicsinthemediterraneanseainresponsetoanthropogenicinputs AT tostetanhua temporalnutrientdynamicsinthemediterraneanseainresponsetoanthropogenicinputs AT nuritkress temporalnutrientdynamicsinthemediterraneanseainresponsetoanthropogenicinputs AT ilnamkim temporalnutrientdynamicsinthemediterraneanseainresponsetoanthropogenicinputs |