Highlights

Vacancy deadline for BONUS EEIG Project Officer extended, apply now

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BONUS-HELCOM Research and Innovation for Sustainability Stakeholder Conference, 6 November 2018, Copenhagen

In association with OSPAR, ICES and JPI Oceans

NEW programme updates! Register soon as places are limited!


News from projects

21.09.2018 New article produced by BONUS GOHERR discusses ways to increase the contribution of Baltic herring to food security

How to increase the use of forage fish, such as Baltic herring, for human consumption - within the limits of sustainability? A new publication suggests a paradigm shift in fisheries governance - to address catch use.

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Project blogs

12.09.2018 12:19New COCOA publication! (Sources & Sinks: A Tale of Coastal Biogeochemistry - BONUS COCOA)

A new study from the BONUS COCOA project has recently been published:


Irma Vybernaite-Lubiene (Marine Research Institute, Klaipeda University, Lithuania) and co-workers intensively sampled the Nemunas River just before the Curonian Lagoon, in order to calculate monthly loads of nutrients generated by one of the main point pollution sources of the Baltic Sea. During 2012–2016, they patiently created an extensive data set, including all forms of nitrogen (N), silicate (Si) and phosphorous (P), to investigate seasonal and annual nutrient variations with respect to discharge, climatic features, and historical trends.
Irma_COCOA

Results show that nutrient loads varied yearly by up to 50% and their concentrations underwent strong seasonality, with N and Si limitation during summer. Changes in agricultural practices resulted in similar N export from the river watershed compared to historical data (1986–2002), while improvements in sewage treatment led to a ~60% decrease of P loads.
Irma concludes that further P reductions are needed to avoid unbalanced dissolved inorganic nitrogen and phosphorus (DIN:DIP~10) ecological stoichiometry in summer, which may stimulate undesired cyanobacterial blooms.


These data are an important contribution to the scattered available information on the largest nutrient source to the Curonian Lagoon and add another piece to the puzzle explaining the links among watersheds and downstream transitional aquatic ecosystems suffering non-linear responses and frequent collapse events (…and furthermore, they allow Irma to dance her PhD in a couple of months, well done and fingers crossed!).



You can read the full story here:

Vybernaite-Lubiene I, Zilius M, Saltyte-Vaisiauske L, Bartoli M (2018) Recent Trends (2012–2016) of N, Si, and P Export from the Nemunas River Watershed: Loads, Unbalanced Stoichiometry, and Threats for Downstream Aquatic Ecosystems. Water10(9),1178. www.mdpi.com/2073-4441/10/9/1178

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Events

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In horizon: The third BONUS symposium on sustainable ecosystem governance in March 2018 etc...

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Young scientists

Hugh Kearns at YSC2017
The sixth BONUS Young Scientist Club convened on 12 June 2017 at the 11th Baltic Sea Science Congress in Rostock, Germany. 

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