(2009)

or habitat sensitivity, as implemented by Hiscock & Tyler-Walters (2006). Finally, if biomass data were replaced with abundance of macrozoobenthos in the provider module, the method could be used, e.g. to assess seabed quality according to the Benthic Quality Index Afatinib concentration introduced by Rosenberg et al. (2004). The authors are grateful to Dr Dan Minchin, Dr Chingiz Nigmatullin and Prof. Sergej Olenin for constructive comments and language corrections. “
“The 6th Study Conference on BALTEX was devoted to changing water, energy and biogeochemical cycles in the Baltic Sea basin. The conference took place at Międzyzdroje, on the island of Wolin, Poland, on 14–18 June 2010. More on the conference, including the programme divided according to the scientific sessions, volume of the presentation abstracts, and list of participants can be found on the BALTEX website (http://www.baltex-research.eu/wolin2010/index.html). It is the privilege of the host country to publish the conference proceedings. Even before the conference, it had been decided that the proceedings would be published as a special volume of Oceanologia, the journal of the Institute of Oceanology, Polish Academy of Sciences,

see more Sopot (http://www.iopan.gda.pl). Altogether, 21 manuscripts were submitted. Following the usual, strict, peer review procedure, 15 were accepted for publication and are included in this volume. The manuscripts cover a broad range of topics, but the relationship to the conference subjects and the BALTEX thematic field – cycles of water and energy in the Baltic Sea catchment area is perfectly clear. With the great variety of topics covered in the accepted papers, it should not be a problem to select a paper that would be specific enough to be placed at the beginning of the volume. On the other hand, nobody really knows where the water cycle begins: is it in a river or the sea, or yet somewhere else? Nevertheless, it seems that most of us appreciate the connection between rain and river, river and sea, and not vice versa. For this reason alone, the volume begins with papers on atmospheric

modelling, which are followed by two papers dealing with precipitation changes over Lithuania and Latvia. Then comes a paper describing the moisture Chlormezanone changes in the easternmost part of the Baltic catchment area. Water level changes in the southern Baltic lagoons are a logical follow-up: these were investigated, and the increasing trend was found to be statistically significant. Other aspects relating to the sea include wave climate and storm surges, topics important from the point of view of marine transport and coastal erosion; both are represented in the volume. Biogeochemistry is represented by the quantitative assessment of phosphorus accumulation, nitrogen deposition to the sea from the atmosphere and nitrogen upwelling.