Chemical properties and fluorescence of DOM in relation to biodegradation in the interconnected Marmara–North Aegean Seas during August 2008

Zeri, Christina; Beşiktepe, Şükrü; Giannakourou, Antonia; Κρασακοπούλου, Ε.; Tzortziou, Maria; Tsoliakos, D.; Pavlidou, Alexandra; Mousdis, George A.; Pitta, Elli; Scoullos, Michael; Papathanassiou, E.

doi:10.1016/j.jmarsys.2013.11.019

Cited by 34 publications

(29 citation statements)

References 70 publications

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“…The model simulated DOC (Fig. 5) is in good agreement with measurements by Zeri et al (2014) that show a similar gradient from 65 mmol m -3 in the open sea (~25.2E, 39.3N) to 107 mmol m -3 near the Dardanelles strait. Vertically, the model DOC (not shown) also follows a similar pattern with the data, extending as deep as 100m, where it reduces to its background value.…”

Section: Resultssupporting

confidence: 82%

“…As mentioned above, the BSW is mostly enriched in terms of dissolved organics, particularly DOC and DON (Polat & Tugrul, 1996;Sempéré et al, 2002;Zeri et al, 2014). BSW contributes significantly more DOC, compared to the main rivers (Fig.…”

Section: Resultsmentioning

confidence: 89%

“…The concentration of dissolved inorganic nutrients in the BSW reaching the Dardanelles strait, is found similar to that in the surface waters of the N. Aegean due to their consumption in the Marmara Sea (Polat & Tugrul, 1996;Lagaria et al, 2013;Zeri et al, 2014). Therefore, BSW inputs of dissolved inorganic nutrients seem to be less important compared to riverine inputs, while DOM could be a significant driver for the system.…”

Section: Introductionmentioning

confidence: 70%

“…1). BSW have low-salinity and are rich in particulate and dissolved organic matter (POM, DOM) (Polat & Tugrul, 1996;Sempéré et al, 2002;Zeri et al, 2014), triggering increased primary and secondary production especially in spring as shown in Siokou-Frangou et al (2002) (Primary Production 2339±905, Bacterial Production 110±77, Copepod Production 41±31 mgC m -2 day -1…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the effect of DOM cycling on primary production is expected to change both in time and space, depending on the availability of organic and inorganic nutrient pools. Although it has been pointed out by several studies (Polat & Tugrul, 1996;Sempéré et al, 2002;Zeri et al, 2014) that the increased organic matter BSW input is an important driver, which may be associated with the increased primary and secondary production in the area, its effect on productivity and food web dynamics has not been yet fully investigated. Tsiaras et al (2014) implemented a compre-hensive coupled hydrodynamic/ biogeochemical model to investigate the impact of river nutrient load variability on N. Aegean ecosystem functioning over the last decades.…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity of the N. AEGEAN SEA ecosystem to Black Sea Water inputs

et al. 2014

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The effect of Black Sea Water (BSW) inputs on the productivity and food web dynamics of the N. Aegean Sea was investigated, by means of sensitivity simulations, investigating the effect of the inflowing BSW, in terms of inorganic nutrients and dissolved organic matter. Considering the importance of the microbial loop in ecosystem functioning and the role of dissolved organics, the bacteria sub-model was appropriately revised, towards a more realistic representation of the Dissolved Organic Matter (DOM) pool. The importance of the microbial loop is highlighted by the simulated carbon fluxes, where almost 50% of carbon is channelled within it. The impact of DOM (in the inflowing to the Aegean Sea BSW) appears to be stronger than the impact of dissolved inorganic nutrients, showing a more extended effect over the N. Aegean. Bacterial production and biomass is more strongly affected in the simulations by modified DOM, while phytoplankton biomass and production are more dependent on inflowing nutrients and particularly phosphorus (inorganic and dissolved organic). As regards phytoplankton composition, the dinoflagellates appear to be affected most, being favoured by higher nutrient availability at the expense of all other groups, particularly picoplankton, indicating a shift to a more classical food chain.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 70%