World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Consequences of Artificial Deepwater Ventilation in the Bornholm Basin for Oxygen Conditions, Cod Reproduction and Benthic Biomass – a Model Study : Volume 11, Issue 1 (21/01/2015)

By Stigebrandt, A.

Click here to view

Book Id: WPLBN0004020283
Format Type: PDF Article :
File Size: Pages 18
Reproduction Date: 2015

Title: Consequences of Artificial Deepwater Ventilation in the Bornholm Basin for Oxygen Conditions, Cod Reproduction and Benthic Biomass – a Model Study : Volume 11, Issue 1 (21/01/2015)  
Author: Stigebrandt, A.
Volume: Vol. 11, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Rosenberg, R., Vinnå, L. R., Ödalen, M., & Stigebrandt, A. (2015). Consequences of Artificial Deepwater Ventilation in the Bornholm Basin for Oxygen Conditions, Cod Reproduction and Benthic Biomass – a Model Study : Volume 11, Issue 1 (21/01/2015). Retrieved from http://worldlibrary.net/


Description
Description: Dept. of Earth Sciences, University of Gothenburg, Gothenburg, Sweden. We develop and use a circulation model to estimate hydrographical and ecological changes in the isolated basin water of the Bornholm Basin. By pumping well-oxygenated so-called winter water to the greatest depth, where it is forced to mix with the resident water, the rate of deepwater density reduction increases as well as the frequency of intrusions of new oxygen-rich deepwater. We show that pumping 1000 m3 s−1 should increase the rates of water exchange and oxygen supply by 2.5 and 3 times, respectively. The CRV (cod reproduction volume), the volume of water in the isolated basin meeting the requirements for successful cod reproduction (S > 11, O2 > 2 mL L−1), should every year be greater than 54 km3, which is an immense improvement, since it has been much less in certain years. Anoxic bottoms should no longer occur in the basin, and hypoxic events will become rare. This should permit extensive colonization of fauna on the earlier periodically anoxic bottoms. Increased biomass of benthic fauna should also mean increased food supply to economically valuable demersal fish like cod and flatfish. In addition, re-oxygenation of the sediments should lead to increased phosphorus retention by the sediments.

Summary
Consequences of artificial deepwater ventilation in the Bornholm Basin for oxygen conditions, cod reproduction and benthic biomass – a model study

Excerpt
Arneborg, L., Fiekas, V., Umlauf, L., and Burchard, H.: Gravity current dynamics and entrainment – a process study based on observations in the Arkona Basin, J. Phys. Oceanogr., 37, 2094–2113, 2007.; Bonsdorff, E. and Pearson, Y. H.: Variation in the sublittoral macrozoobenthos of the Baltic Sea along environmental gradients: A functional-group approach, Aust. J. Ecol., 24, 312–326, 1999.; Bonsdorff, E., Blomqvist, E. M., Mattila, J., and Norkko, A.: Coastal eutrophication: causes, consequences and perspectives in the archipelago area of the northern Baltic Sea, Estuar. Coast. Shelf Sci., 44, 63–72, 1997.; Breitburg, D. L.: Effects of hypoxia, and the balance between hypoxia and enrichment, on coastal fishes and fisheries, Estuaries, 25, 767–781, 2002.; Cederwall, H., Jermakovs, V., and Lagzdins, G.: Long-term changes in the soft-bottom macrofauna of the Gulf of Riga, ICES J. Mar. Sci., 56, 41–48, 1999.; Conley, D. J., Björck, S., Bonsdorff, E., Carstensen, J., Destouni, G., Gustafsson, B. G., Hietanen, S., Kortekaas, M., Kuosa, H., Meier, H. E. M., Müller-Karulis, B., Nordberg, K., Norkko, A., Nürnberg, G., Pitkänen, H., Rabalais, N. N., Rosenberg, R., Savchuk, O. P., Slomp, C. P., Voss, M., Wulff, F., and Zillén, L.: Hypoxia-related processes in the Baltic Sea, Environ. Sci. Technol., 43, 3412–3420, doi:10.1021/es802762a, 2009a.; Conley, D. J., Bonsdorff, E., Carstensen, J., Destouni, G., Gustafsson, B. G., Hansson, L.-A., Rabalais, N. N., Voss, M., and Zillén, L.: Tackling hypoxia in the Baltic Sea: Is engineering a solution?, Environ. Sci. Technol., 43, 3407–3411, doi:10.1021/es8027633, 2009b.; Demel, K. and Mulicki, Z.: Quantitative investigations on the biological bottom productivity of the South Baltic (in Polish with English summary), Prace Morskiego Instytutu Rybackiego w Gdyni, 7, 75–126, 1954.; Diaz, R. J. and Rosenberg, R.: Marine benthic hypoxia: a review of its ecological effects and behavioural responses of marine macrofauna, Oceanogr. Mar. Biol., 33, 245–303, 1995.; Diaz, R. J. and Rosenberg, R.: Spreading dead zones and consequences for marine ecosystems, Science, 321, 926–929, 2008.; Elmgren, R.: The eutrophication status of the Baltic Sea: Input of nitrogen and phosphorus, their availability for plant production, and some management implications, Baltic Sea Environ. Proc. Helsinki, 30, 12–31, 1989.; Elmgren, R.: Understanding human impact on the Baltic ecosystem: changing views in recent decades, AMBIO, 30, 222–231, 2001.; Granberg, M., Gunnarsson, J., Hedman, J., Rosenberg, R., and Jonsson, P.: Bioturbation-driven release of sediment-associated contaminants from Baltic Sea sediments mediated by the invading polychaete Marenzelleria neglecta, Environ. Sci. Technol., 42, 1058–1065, 2008.; Gustafsson, B. G., Meier, H. E. M., Savchuk, O. P., Eilola, K., Axell, L., and Almroth, E.: Simulation of some engineering measures aiming at reducing effects from eutrophication of the Baltic Sea, Earth Sciences Centre, University of Gothenburg, Earth Sciences Report Series, C82, ISSN 1400-383X, 59 pp., 2008.; Hedman, J. E., Bradshaw, C., Thorsson, M. H., Gilek, M., and Gunnarsson, J. S.: Fate of contaminants in Baltic Sea sediments: role of bioturbation and settling organic matter, Mar. Ecol. Prog. Ser., 356, 25–38, 2008.; Hinrichsen, H.-H., Voss, R., Wieland, K., Köster, F., Andersen, K. H., and Margonski, P.: Spatial and temporal heterogeneity of cod spawning environment in the Bornholm Basin, Baltic Sea, Mar. Ecol. Prog. Ser., 345, 245–254, doi:10.3354/meps06989, 2007.; Jonsson, P., Carman, R., and Wulff, F.: Laminated sediments in the Baltic – a tool for evaluating nutrient mass balances, AMBIO, 19, 152–158, 1990.; Karlson, K., Rosenberg, R., and Bonsdorff, E.: Temporal and spatial large-scale effects of eutrophication and

 

Click To View

Additional Books


  • Subsurface Primary Production in the Wes... (by )
  • The Impacts of Physical Processes on Oxy... (by )
  • Malvinas-slope Water Intrusions on the N... (by )
  • Decadal Variability of Heat Content in t... (by )
  • A Practical Scheme to Introduce Explicit... (by )
  • Extreme Winter 2012 in the Adriatic: an ... (by )
  • Absolute Salinity, Density Salinity and ... (by )
  • Distributions of Mixed Layer Properties ... (by )
  • Inferring the Zonal Distribution of Meas... (by )
  • Assessment of the Ecco2 Reanalysis on th... (by )
  • Spatial Scales of Temperature and Salini... (by )
  • Coastal Upwelling Along the Southwest Co... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.