These are the preliminary results from an ongoing analysis at Stockholm University (Department of Systems Ecology, Baltic Nest Institute at Stockholm Resilience Centre). The study is highly relevant for the management decision on Baltic cod, which will be taken by the Council of Ministers on October 27th 2008.
According to scientists at the International Council for the Exploration of the Seas (ICES), the eastern Baltic cod stock has increased since 2005 and is now higher than ever during the last decade. Researchers at Stockholm University analyzed whether this increase is a result of management actions reducing the fishing pressure or improved environmental conditions resulting in higher reproduction.
Model simulations show that neither reduced catches alone, nor higher reproduction, could explain the increase. Each factor only explained 25% of the total increase. Synergies between both factors were necessary for the current increase in the Baltic Sea cod stock.
- This analysis clearly illustrates the importance of management actions but it also underlines the non-linear dynamics in nature and the challenges involved in ecosystem management, says Henrik Österblom at Baltic Nest Institute and one of the authors behind the study.Does this mean that the Baltic cod stock is safe now?
Maria Sandqvist | alfa
Dead trees are alive with fungi
10.01.2018 | Helmholtz Centre for Environmental Research (UFZ)
Management of mountain meadows influences resilience to climate extremes
10.01.2018 | Max-Planck-Institut für Biogeochemie
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
16.01.2018 | Materials Sciences
16.01.2018 | Materials Sciences
16.01.2018 | Power and Electrical Engineering