Ecosystem and primary production interactions in three contrasting sites in thenorthern levantine basın

Yılmaz, Elif
Salihoğlu, Barış
Uysal, Zahit
Yumruktepe, Veli
Tezcan, Devrim
Örek, Hasan
Tuğrul, Süleyman
To determine the effects of different nutrient dynamics in the Levatine Basin a 1-D multi component lower trophic ecosystem model is used and the carrying capacity and regulatory mechanisms of the nutrients on upper trophic levels at three contrasting marine sites in the Northeastern Mediterranean is assessed. Offshore waters of Mersin Bay, coastal sites of Erdemli and Rhodes Gyre is chosen as they represent distinctive characteristics in terms of nutrients dynamics. Model results suggest distinct mechanisms that drives the phytoplankton blooms in each region, for example in Rhodes Gyre highest productivity observed during late February, whereas the strongest bloom was during spring at Erdemli coasts. Offshore waters of Mersin Bay has the lowest productivity throughout the year with minor changes during winter and spring seasons.
CEISM Congress, (12 - 16 Eylül 2016)


Yilmaz, Elif; Salihoğlu, Barış; Department of Oceanography (2016-10-12)
Three areas of different ecosystem characteristics in the Northern Levantine Basin is compared using a 1-D multicomponent lower trophic level ecosystem model developed by SALIHOĞLU, B. et al. (2009) (NAGEM). Main focus was to analyze and compare the carrying capacity (PP) and regulatory mechanisms of the nutrients on lower trophic levels. 26 years’ of historical data obtained from METU-IMS data inventory and CORIOLIS was used to form a climatology, to introduce boundary conditions to the model as well as to...
Biomass changes and trophic amplification of plankton in a warmer ocean
Chust, Guillem; et. al. (2014-07-01)
Ocean warming can modify the ecophysiology and distribution of marine organisms, and relationships between species, with nonlinear interactions between ecosystem components potentially resulting in trophic amplification. Trophic amplification (or attenuation) describe the propagation of a hydroclimatic signal up the food web, causing magnification (or depression) of biomass values along one or more trophic pathways. We have employed 3-D coupled physical-biogeochemical models to explore ecosystem responses t...
Ecosystem indicators-accounting for variability in species' trophic levels
Reed, Jodie; Shannon, Lynne; VELEZ, Laure; Akoğlu, Ekin; BUNDY, Alida; Coll, Marta; FU, Caihong; FULTON, Elizabeth A.; Gruss, Arnaud; HALOUANI, Ghassen; HEYMANS, Johanna J.; HOULE, Jennifer E.; John, Emma; LE LOC'H, Francois; Salihoğlu, Barış; VERLEY, Philippe; Shin, Yunne-Jai (2017-01-01)
Trophic level (TL)-based indicators are commonly used to track the ecosystem effects of fishing as the selective removal of organisms from the food web may result in changes to the trophic structure of marine ecosystems. The use of a fixed TL per species in the calculation of TL-based indicators has been questioned, given that species' TLs vary with ontogeny, as well as over time and space. We conducted a model-based assessment of the performance of fixed TL-based indicators vs. variable TL-based indicators...
Changes of Eutrofication Indicator Parameters (TP, DIN, Chl-a and TRIX) in the Cilician Basin (Northeast Mediterranean)
TUĞRUL, SÜLEYMAN; Uysal, Zahit; Erdogan, Emine; Yucel, Nebil (2011-01-01)
Eutrophication processes and changes in coastal ecosystem are determined by the coastal/open sea interactions and rates of nutrient pollution. The Cilician Basin shelf waters are affected not only by intense industrial activities and increased population, but also by complex atmosphere-sea-land interactions. There is a recognizable difference between water qualities of Mersin bay coastal and the Cilician open waters depleted in nutrients. Eutrophic conditions have developed in the eastern bay shallow waters...
Formation of Zn- and Fe-sulfides near hydrothermal vents at the Eastern Lau Spreading Center: implications for sulfide bioavailability to chemoautotrophs
Hsu-Kim, Heileen; Mullaugh, Katherine M.; Tsang, Jeffrey J.; Yücel, Mustafa; Luther, George W. (2008-05-19)
Background: The speciation of dissolved sulfide in the water immediately surrounding deep-ocean hydrothermal vents is critical to chemoautotrophic organisms that are the primary producers of these ecosystems. The objective of this research was to identify the role of Zn and Fe for controlling the speciation of sulfide in the hydrothermal vent fields at the Eastern Lau Spreading Center (ELSC) in the southern Pacific Ocean. Compared to other well-studied hydrothermal systems in the Pacific, the ELSC is notabl...
Citation Formats
E. Yılmaz et al., “Ecosystem and primary production interactions in three contrasting sites in thenorthern levantine basın,” 2016, vol. 41, p. 409, Accessed: 00, 2021. [Online]. Available: