| Titre : | AMBIO 36(2-3) - APR 2007 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Jens Perus, Auteur ;
Erik Bonsdorff, Auteur ;
Saara Back, Auteur ;
Hans-Goran Lax, Auteur ;
Anna Villnas, Auteur ;
Vincent Westberg, Auteur
A new method for classifying soft-bottom zoobenthic assemblages along the Finnish coasts (northern Baltic Sea) is presented and tested against traditional physicochemical monitoring data in the complex Archipelago Sea. Although multivariate meth[...]
Article
Sif Johansson, Auteur ;
Fredrik Wulff, Auteur ;
Erik Bonsdorff, Auteur
Article
Marko Joas, Auteur ;
Kristine Kern, Auteur ;
Siv Sandberg, Auteur
Policymaking within and among states is under pressure for change. One feature of this change is empirically observed as an activation of different network structures in the Baltic Sea Region, especially since the collapse of the Iron Curtain, t[...]
Article
Tuomas Rasanen, Auteur ;
Simo Laakkonen, Auteur
The Convention on the Protection of the Marine Environment of the Baltic Sea Area signed in 1974 in Helsinki is probably the most important environmental agreement consummated in the Baltic Sea region. This article is the first study that explor[...]
Article
Tuula Aarnio, Auteur ;
Veijo Jormalainen, Auteur ;
Jorma Kuparinen, Auteur ;
Fred Wulff, Auteur ;
Sif Johansson, Auteur ;
Simo Laakkonen, Auteur ;
Elisabeth Kessler, Auteur
Article
Piotr Kowalik, Auteur ;
Simo Laakkonen, Auteur
The postwar development of water protection legislation and wastewater discharges is poorly known for the Baltic Sea region as a whole. This article presents national efforts to govern wastewater discharges in Poland using legal tools over the t[...]
Article
Kaarina Sivonen, Auteur ;
Katrianna Halinen, Auteur ;
Leila M. Sihvonen, Auteur ;
Kerttu Koskenniemi, Auteur ;
Hanna Sinkko, Auteur ;
Kaisa Rantasarkka, Auteur ;
Pia H. Moisander, Auteur ;
Christina Lyra, Auteur
In this article we summarize the current knowledge of Baltic Sea cyanobacteria, focusing on diversity, toxicity, and nitrogen fixation in the filamentous heterocystous taxa. We also review the recent. results of our microbial diversity studies i[...]
Article
Sonja Suni, Auteur ;
Kaisa Koskinen, Auteur ;
Sari Kauppi, Auteur ;
Emilia Hannula, Auteur ;
Tuukka Ryynanen, Auteur ;
Annika Aalto, Auteur ;
Jenni Jaanheimo, Auteur ;
Johanna Ikavalko, Auteur ;
Martin Romantschuk, Auteur
This study examined the efficiency of cotton grass fibers in removing diesel oil from the surface of water in conditions prevailing in the Baltic Sea. The effect of low temperature, salinity, and bacterial amendments were tested in laboratory-sc[...]
Article
Heikki Pitkanen, Auteur ;
Mikko Kiirikki, Auteur ;
Oleg P. Savchuk, Auteur ;
Antti Raike, Auteur ;
Paivi Korpinen, Auteur ;
Fredrik Wulff, Auteur
An experiment combining the use of two ecosystem models was conducted to search for effective protection strategies for the Gulf of Finland (Baltic Sea). Reference and scenario simulations were first run with a one-dimensional (1D) model for sev[...]
Article
Kristiina A. M. Vuori, Auteur ;
Mikko Nikinmaa, Auteur
Baltic salmon suffer from maternally transmitted yolk-sac fry mortality syndrome-M74. The incidence of M74 varies considerably on a year to year basis. In the 1990s the mortalities were 50--80% but in 2003-2005, below 10%. Before death, M74-affe[...]
Article
Sture Hansson, Auteur ;
Olle Hjerne, Auteur ;
Chris Harvey, Auteur ;
James F. Kitchell, Auteur ;
Sean P. Cox, Auteur ;
Timothy E. Essington, Auteur
Based on an earlier published ecosystem model, we have explored possible effects of different management scenarios for the Baltic Sea. The scenarios include an oligotrophication of the system, a drastic increase in the number of seals, and chang[...]
Article
Karin Karlson, Auteur ;
Erik Bonsdorff, Auteur ;
Rutger Rosenberg, Auteur
This article focuses on the ecological role of benthic macrofauna on nutrient dynamics and benthic-pelagic coupling in the Baltic Sea with relation to eutrophication. Generally, benthic macrofaunal activities have large effects on sediment bioge[...]
Article
Mikko Kiljunen, Auteur ;
Mari Vanhatalo, Auteur ;
Samu Mantyniemi, Auteur ;
Heikki Peltonen, Auteur ;
Sakari Kuikka, Auteur ;
Hannu Kiviranta, Auteur ;
Rairno Parmanne, Auteur ;
Jouni T. Tuomisto, Auteur ;
Pekka J. Vuorinen, Auteur ;
Anja Hallikainen, Auteur ;
Matti Verta, Auteur ;
Jukka Ponni, Auteur ;
Roger I. Jones, Auteur ;
Juha Karjalainen, Auteur
This study examines the extent to which Finnish human dietary intake of organochlorines (PCDD/Fs and PCBs) originating from Northern Baltic herring can be influenced by fisheries management. This was investigated by estimation of human intake us[...]
Article
Kaarina Weckstrom, Auteur ;
Atte Korhola, Auteur ;
Jan Weckstrom, Auteur
Increased nutrient and sediment loading can affect the functioning and biodiversity of coastal ecosystems. Lacking long-term monitoring data, paleolimnological techniques enable the estimation of habitat and diversity change through time. Using [...]
Article
Fredrik Wulff, Auteur ;
Oleg P. Savchuk, Auteur ;
Alexander Sokolov, Auteur ;
Christoph Humborg, Auteur ;
Carl-Magnus Morth, Auteur
We are using the coupled models in a decision support system, Nest, to evaluate the response of the marine ecosystem to changes in external loads through various management options. The models address all the seven major marine basins and the en[...]
Article
Jorma Kuparinen, Auteur ;
Harri Kuosa, Auteur ;
Agneta Andersson, Auteur ;
Riitta Autio, Auteur ;
Mats A. Granskog, Auteur ;
Johanna Ikavalko, Auteur ;
Hermanni Kaartokallio, Auteur ;
Kirnmo Karell, Auteur ;
Elina Leskinen, Auteur ;
Jonna Piiparinen, Auteur ;
Janne-Markus Rintala, Auteur ;
Jaana Tuomainen, Auteur
This paper compiles biological and chemical sea-ice data from three areas of the Baltic Sea: the Bothnian Bay (Hailuoto, Finland), the Bothnian Sea (Norrby, Sweden), and the Gulf of Finland (Tvarminne, Finland). The data consist mainly of field [...]
Article
Simo Laakkonen, Auteur ;
Sari Laurila, Auteur
The study examines the history of strategic decision-making concerning water protection in Helsinki, 1850-2000. We identified five major strategic decisions that occurred during the study period. The results indicate that strategic decision-maki[...]
Article
Oleg P. Savchuk, Auteur ;
Fredrik Wulff, Auteur
SANBALTS (Simple As Necessary Baltic Long-Term Large-Scale) is a model of the coupled nitrogen and phosphorus cycles. This model has been developed as an integral part of the decision support system Marine Research on Eutrophication's Nest with [...]
Article
Samuli Korpinen, Auteur ;
Tuija Honkanen, Auteur ;
Outi Vesakoski, Auteur ;
Anne Hemmi, Auteur ;
Riitta Koivikko, Auteur ;
Jyrki Loponen, Auteur ;
Veijo Jormalainen, Auteur
In diverse littoral communities, biotic interactions play an important role in community regulation. This article reviews how eutrophication modifies biotic interactions in littoral macroalgal communities. Eutrophication causes blooms of opportu[...]
Article
Hanna Silvennoinen, Auteur ;
Susanna Hietanen, Auteur ;
Anu Lilkanen, Auteur ;
C. Florian Stange, Auteur ;
Rolf Russow, Auteur ;
Jorma Kuparinen, Auteur ;
Pertti J. Martikainen, Auteur
Estuaries have been suggested to have an important role in reducing the nitrogen load transported to the sea. We measured denitrification rates in six estuaries of the northern Baltic Sea. Four of them were river mouths in the Bothnian Bay (nort[...]
Article
Anders Stigebrandt, Auteur ;
Bo G. Gustafsson, Auteur
Eutrophication of the Baltic proper has led to impaired water quality, demonstrated by, e.g., extensive blooming of cyanobacteria during the premium summer holiday season and severe oxygen deficit in the deepwater. Sustainable improvements in wa[...]
Article
Miina Karjalainen, Auteur ;
Jonna Engstrom-Ost, Auteur ;
Samuli Korpinen, Auteur ;
Heikki Peltonen, Auteur ;
Jari-Pekka Paakkonen, Auteur ;
Sanna Ronkkonen, Auteur ;
Sanna Suikkanen, Auteur ;
Markku Viitasalo, Auteur
Cyanobacteria of the Baltic Sea have multiple effects on organisms that influence the food chain dynamics on several trophic levels. Cyanobacteria contain several bioactive compounds, such as alkaloids, peptides, and lipopolysaccharides. A group[...]
Article
Carl-Magnus Morth, Auteur ;
Christoph Humborg, Auteur ;
Hanna Eriksson, Auteur ;
Asa Danielsson, Auteur ;
Miguel Rodriguez Medina, Auteur ;
Stefan Lofgren, Auteur ;
Dennis P. Swaney, Auteur ;
Lars Rahm, Auteur
We developed for the first time a catchment model simulating simultaneously the nutrient land-sea fluxes from all 105 major watersheds within the Baltic Sea drainage area. A consistent modeling approach to all these major watersheds, i.e., a con[...]
Article
Emil Vahtera, Auteur ;
Daniel J. Conley, Auteur ;
Bo G. Gustafsson, Auteur ;
Harri Kuosa, Auteur ;
Heikki Pitkanen, Auteur ;
Oleg P. Savchuk, Auteur ;
Timo Tamminen, Auteur ;
Markku Viitasalo, Auteur ;
Maren Voss, Auteur ;
Norbert Wasmund, Auteur ;
Fredrik Wulff, Auteur
Eutrophication of the Baltic Sea has potentially increased the frequency and magnitude of cyanobacteria blooms. Eutrophication leads to increased sedimentation of organic material, increasing the Extent of anoxic bottoms and subsequently increas[...]
Article
Taula Aarnio, Auteur
Article
Sif Johansson, Auteur ;
Fredrik Wulff, Auteur ;
Erik Bonsdorff, Auteur
Article
Jens Perus, Auteur ;
Erik Bonsdorff, Auteur ;
Saara Back, Auteur ;
Hans-Goran Lax, Auteur ;
Anna Villnas, Auteur ;
Vincent Westberg, Auteur
A new method for classifying soft-bottom zoobenthic assemblages along the Finnish coasts (northern Baltic Sea) is presented and tested against traditional physicochemical monitoring data in the complex Archipelago Sea. Although multivariate meth[...]
