Effect of riverine nutrients on coastal water ecosystems: A case study from the northeastern Mediterranean shelf

Date

2004-01-01

Author

Dogan-Saglamtimur, N
Tuğrul, Süleyman

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

134
views

0
downloads

Hydro-chemical data were obtained from a shallow and deep water station in the Turkish shelf zone of the NE Mediterranean with approximately monthly intervals from January to December 2002. The shallow station (0.5 miles off the coast) is influenced directly by the small Lamas River having high nitrate (63-121 muM) and silicate (52-118 muM) values, but very low phosphate concentrations (30-760 nM). Thus, nitrate and silicate concentrations of the shallow station are extremely variable and much higher than those in the upper layer (0-50 m) of the deep station. Similarly, the phosphate concentrations, measured using the high-sensitivity magnesium-induced coprecipitation (MAGIC) method, fluctuate markedly between 20 and 180 nM in the shallow water, but vary little (15-30 nM) in the deep water samples. Particulate organic matter (POM) abundance increases markedly from the shallow to the deep station. However, chemical composition (C/N ratio) of bulk POM in the shelf waters ranges between 7 and 13, displaying small temporal fluctuations at the nutrient-depleted deep station.

Subject Keywords

Nutrients, Particulate organic matter, NE Mediterranean shelf, Riverine input

URI

https://hdl.handle.net/11511/54939

Journal

FRESENIUS ENVIRONMENTAL BULLETIN

Collections

Graduate School of Marine Sciences, Article

Suggestions

OpenMETU
Core

Contributions of natural sources to high PM10 and PM2.5 events in the eastern Mediterranean Koçak, Mustafa; Kubilay, Nilgun (2007-06-01) In total 562 daily PM10 and PM2.5 samples were collected from April 2001 to April 2002 at a rural site (Erdemli) located on the coast of the Eastern Mediterranean. The annual mean PM10 and PM2.5 levels were 36.4 +/- 27.8 and 9.7 +/- 5.9 mu g m(-3), respectively. PM10 and PW2.5 concentrations indicated orders of magnitude change from day to day (PM10 = 2-326 mu g m(-3); PM2.5 = 0.5-28 mu g m(-3)). The highest levels of PM10 were observed during the transition period (March, April and May) due to mineral dust...
Effects of river inputs on particulate organic matter composition and distributions in surface waters and sediments of the Mersin Bay, Northeastern Mediterranean Sea Akçay, İsmail; Tuğrul, Süleyman; Özhan, Koray (2022-05-01) Terrestrial inputs-induced eutrophication in the P-depleted Northeastern (NE) Mediterranean shelf waters has led to changes in particulate organic matter (POM) composition and distributions in the water column and surface sediments. The present study aimed to understand the impacts of terrestrial nutrient and POM inputs on coastal eutrophication, bulk POM composition and concentrations in surface waters and sediments of the Mersin Bay, located at the Cilician Basin of NE Mediterranean Sea. The present resul...
Long range transport of pollutants from Europe to the Eastern Mediterranean Almomani, Idrees; Güllü, Gülen; Eler, Ünal; Erdal, Örtel; Şirin, Gürol; Tuncel, Süleyman Gürdal (2019-01-01) Daily aerosol and wet-only precipitation samples were collected, between January 1992 and January 1991 at a permanent station established on the Mediterranean coast of Turkey. Collected aerosol and rain samples were analyzed for major ions and a host of trace elements. The results have demonstrated that concentrations of parameters studied are higher than corresponding concentrations measured in the Western Mediterranean and western parts of the Black Sea due to longer transport distances to source regions ...
Role of Saharan dust on phytoplankton dynamics in the northeastern Mediterranean Eker-Develi, Elif; Kıdeyş, Ahmet Erkan; TUĞRUL, SÜLEYMAN (2006-01-01) Effects of atmospheric deposition and other environmental factors on phytoplankton dynamics were evaluated from an open (having offshore characteristics) and a coastal station in the northeastern Mediterranean between December 2000 and December 2001. Data on phytoplankton, chlorophyll a, nutrients, temperature and salinity were obtained at bi-weekly or more intense intervals during 1 yr, whilst transport of Saharan dust towards the sampling region was monitored daily by SeaWiFS (sea-viewing wide field-of-vi...
Chemical composition of Eastern Mediterranean aerosol and precipitation: Indications of long-range transport Almomani, Idrees; GÜLLÜ, GÜLEN; Ölmez, İlhan; ELER, ÜNAL; Ortel, E; Şirin, Gürol; Tuncel, Süleyman Gürdal (1997-01-01) Daily aerosol and wet-only precipitation samples were collected, between January 1992 and January 1994 at a permanent station established on the Mediterranean coast of Turkey. Collected aerosol and rain samples were analyzed for major ions and a host of trace elements using a combination of analytical techniques, including ion chromatography, atomic absorbtion spectrometry and instrumental neutron activation analysis. The results have demonstrated;hat concentrations of parameters studied are higher than cor...

Citation Formats

N. Dogan-Saglamtimur and S. Tuğrul, “Effect of riverine nutrients on coastal water ecosystems: A case study from the northeastern Mediterranean shelf,” FRESENIUS ENVIRONMENTAL BULLETIN, pp. 1288–1294, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54939.