Copepod communities, production and grazing in the Turkish Straits System and the adjacent northern Aegean Sea during spring

Date

2011-06-01

Author

Zervoudaki, S.
Christou, E. D.
Assimakopoulou, G.
Orek, H.
Gücü, Ali Cemal
Giannakourou, A.
Pitta, P.
TERBIYIK KURT, TUBA
Yucel, N.
Moutsopoulos, T.
Pagou, K.
Psarra, S.
Ozsoy, E.
Papathanassiou, E.

Metadata

Show full item record

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

Item Usage Stats

256
views

0
downloads

The Mediterranean and the Black Seas are connected through Bosphorus, Marmara Sea and Dardanelles (Turkish Straits System, TSS). In this study, we examined the spatial distribution of copepods and investigate their production and grazing. The aim was to understand the transfer of phytoplankton/microzooplankton production up the food chain in TSS and Aegean Sea during spring. The phytoplankton and microzooplankton biomass and production showed a clear decreasing trend from Bosphorus to the Aegean Sea, whereas copepod biomass did not reveal any distinct trend and only the number of copepod species increased from Bosphorus to the Aegean Sea. Production of copepods and egg production showed similar trends except for the Bosphorus, where production of copepods was very low due to the low copepod biomass in this area. In all areas, the copepod carbon demand was largely met by phytoplankton and microzooplankton production. However, only a low amount of primary production was consumed by copepods and production appeared to flow mostly through other pathways (microbial loop) and/or sediment on the bottom. The results of this study confirm the hypothesis that there is a substantial differentiation within pelagic food web structure and carbon flow from Bosphorus to the Aegean Sea.

Subject Keywords

Copepod community, Production, Grazing, Carbon budget, Turkish straits, Aegean Sea

URI

https://hdl.handle.net/11511/31141

Journal

JOURNAL OF MARINE SYSTEMS

DOI

https://doi.org/10.1016/j.jmarsys.2011.02.002

Collections

Graduate School of Marine Sciences, Article

Suggestions

OpenMETU
Core

Water Exchange through Canal İstanbul and Bosphorus Strait Sözer, Adil; Ozsoy, E. (National Documentation Centre (EKT), 2017-2-13) The Turkish Straits System (TSS) regulates the transports of water, material and energy between the Black Sea and the Mediterranean Sea. Amidst existing environmental threats to the region surrounding I.stanbul, the environmental footprint of the proposed Canal I.stanbul project needs to be evaluated through methods of natural science. We take the elementary step to answer the particular problem of coupled strait dynamics by adding the Canal to an existing hydrodynamic model and estimate changes in their co...
Mixing in the Bosphorus Strait and the Black Sea continental shelf: observations and a model of the dense water outflow Ozsoy, E; Di Iorio, D; Gregg, MC; Backhaus, JO (2001-11-01) Counterflowing waters of the Black Sea and Mediterranean Sea are mixed by turbulent entrainment processes along their course through the Turkish Straits. In the Bosphorus Strait, the entrainment into the upper layer from below is abruptly increased when the flow is accelerated in the narrower southern reach, where the flow passes through a contraction. In contrast, the lower layer salinity decreases towards the north first by gradual entrainment within the Strait and later at an increased rate in the wide c...
Application of a three-dimensional numerical model to the idealized conditions of the bosphorus strait. Sözer, Adil; Özsoy, Emin; Department of Marine Sciences (2002) The Bosphorus Strait is a narrow and shallow channel between the Sea of Marmara and the Black Sea which plays an important role in the Turkish Straits System connecting the Black Sea and the Mediterranean Sea. The exchange flow through the Bosphorus Strait is principally determined by geometry and stratification, and exhibits a complex nonlinear response to forcing by the net water budget, pressure and wind setup effects in adjacent basins. This study aims for a better understanding of the behaviour of the ...
Dynamics of High Energy Environment: Processes at the Turkish Strait System (DEEP) Sannıno, Gianmaria; Sözer, Adil; Delfantı, Roberta; Tuğrul, Süleyman; Özsoy, Emin(2015) The Turkish Straits System (TSS) controls the exchange between the Black Sea and the Mediterranean Sea. A sound understanding of the circulation and transport mechanisms of this complex system depends on a series of experimental investigations and modelling development that have been carried out. We focus on the characterization of the exchange through the TSS, the influence on the adjacent seas and in particular, the ventilation of the Black Sea by the effluent of Mediterranean water exiting the TSS. Exper...
Ege ve Doğu Akdeniz meselelerinin tarihsel, hukuki ve siyasi veçheleri üzerine tahlil ve düşünceler Apakan, Ertuğrul (Middle East Technical University Faculty of Economics and Administrative Sciences, 2021-12) Ege ihtilafları, Doğu Akdeniz ve Kıbrıs meseleleri farklı mecralarda oluşsa da, ortak bir tarihi ve coğrafi zemine dayanmaktadır. Bu çalışma anılan meselelerin karmaşık siyasi ve hukuki veçhelerini, birbiri ile etkileşimini bir bütünsellik içinde incelemektedir. Bu bağlamda, Türkiye ve Yunanistan arasında Ege sorunları ile ilgili yürütülen müzakerelerin geçirdiği aşamaları, tarafların siyasi ve hukuki tezlerini tahlil etmektedir. Ayrıca, uluslararası hukukun ilgili kurallarını, örnekler ve Uluslararası Adal...

Citation Formats

S. Zervoudaki et al., “Copepod communities, production and grazing in the Turkish Straits System and the adjacent northern Aegean Sea during spring,” JOURNAL OF MARINE SYSTEMS, pp. 45–56, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31141.