For the week of 16 July 2018
Greetings OpenChannels Community Members,
Marine Pollution Bulletin has published, Do microplastics affect marine ecosystem productivity? "Marine and coastal ecosystems are among the largest contributors to the Earth's productivity. Experimental studies have shown negative impacts of microplastics on individual algae or zooplankton organisms. Consequently, primary and secondary productivity may be negatively affected as well. In this study we attempted to estimate the impacts on productivity at ecosystem level based on reported laboratory findings with a modelling approach, using our biogeochemical model for the North Sea (Delft3D-GEM). Although the model predicted that microplastics do not affect the total primary or secondary production of the North Sea as a whole, the spatial patterns of secondary production were altered, showing local changes of ±10%. However, relevant field data on microplastics are scarce, and strong assumptions were required to include the plastic concentrations and their impacts under field conditions into the model. These assumptions reveal the main knowledge gaps that have to be resolved to improve the first estimate above."
As always, if we've missed anything, please feel free to let us know. You may simply reply to this message, or you may email Allie directly at abrown [at] openchannels.org.
You can read everything (not just the free stuff) we have found this week at https://www.openchannels.org/literature-update/2018-07-18. Additionally, you can browse literature by the week we've added it at https://www.openchannels.org/literature-by-week.
Thank you for being part of the OpenChannels Community,
– Allie Brown, Raye Evrard, and the rest of the OpenChannels Team