Quantifying susceptibility of marine invertebrate biocomposites to dissolution in reduced pH

first_imgOcean acidification threatens many ecologically and economically important marine calcifiers. The increase in shell dissolution under the resulting reduced pH is an important and increasingly recognized threat. The biocomposites that make up calcified hardparts have a range of taxon-specific compositions and microstructures, and it is evident that these may influence susceptibilities to dissolution. Here, we show how dissolution (thickness loss), under both ambient and predicted end-century pH (approx. 7.6), varies between seven different bivalve molluscs and one crustacean biocomposite and investigate how this relates to details of their microstructure and composition. Over 100 days, the dissolution of all microstructures was greater under the lower pH in the end-century conditions. Dissolution of lobster cuticle was greater than that of any bivalve microstructure, despite its calcite mineralogy, showing the importance of other microstructural characteristics besides carbonate polymorph. Organic content had the strongest positive correlation with dissolution when all microstructures were considered, and together with Mg/Ca ratio, explained 80–90% of the variance in dissolution. Organic content, Mg/Ca ratio, crystal density and mineralogy were all required to explain the maximum variance in dissolution within only bivalve microstructures, but still only explained 50–60% of the variation in dissolution.last_img read more

Read More

News story: Winfrith land transfer secures £1.7 million savings

first_img As part of its decommissioning mission, the NDA is committed to disposing of its assets and freeing up its land for alternative uses, wherever appropriate. I am delighted that we have signed this agreement with Tradebe Inutec, which reduces our liabilities while supporting the supply chain and the local economy. Tradebe Inutec, an existing tenant, has operated a facility at the Dorset site for more than 30 years and now has greater flexibility to expand or diversify its operations on land adjacent to the former civil nuclear research site – which is now being decommissioned by Magnox Ltd. The agreement will safeguard up to 70 skilled jobs.Before the sale can be finalised, the controls covering the nuclear facility need to be lifted through approval by the Government’s Department for Business, Energy and Industrial Strategy. The deal is expected to conclude next year and will mean that the NDA’s mission will be completed for this part of the site. Work under way at the facilityThe Tradebe Inutec site occupies almost 3 hectares, around the same size as 4 football pitches.The transfer aligns to the NDA’s strategy for surplus assets. To date this has raised more than £500 million for the UK taxpayer, including the sale of non-operational land at Wylfa, Oldbury, Hinkley and Bradwell.NDA Chief Financial Officer David Batters said:center_img Tradebe Inutec provides a wide range of radioactive waste management services to UK and overseas markets, including recycling and thermal treatment. Its Winfrith site processes low-level wastes (LLW) and borderline Intermediate Level Waste (ILW).last_img read more

Read More

ESL flying high as it reveals Emirates Airline partnership

first_imgESL has today announced an intriguing partnership with Emirates Airline that will see on-demand esports content available at passengers fingertips.Credit: ESLThere’s no shortage of people who love and work in esports and take long-haul flights. Now you can swap the arduous task of watching eight seasons of Big Bang Theory for reliving some of the finest esports action in recent years. Whether it’s Astralis lifting their first IEM title, Na’Vi storming through ESL One New York or perhaps SCII, Dota 2 or League of Legends are more to your liking – you can relive the best ESL action on an Emirates flight. The partnership initially runs until June 2018, with every Emirates flight in their network of 150 destinations being kitted out with on-demand esports content on the inflight entertainment systems. Torsten Haux, VP of Global Media Rights at ESL, commented in the initial article: “At ESL, we are always looking to increase the visibility of esports and are happy to work with Emirates, the world’s largest international airline, on our first inflight entertainment deal. As a truly global company with events all around the world, I’m sure that players and fans will enjoy ESL’s esports highlights as they travel on Emirates airline.”For players utilising Emirates, they’ll have a chance to go back and watch tournaments that they’ve competed in – effectively reliving their finest (or worst) moments from a spectator perspective. It has also been revealed that the deal encompasses future stadium events such as ESL One Cologne. That means you won’t be stuck on a flight next year and still having to watch 2016 content. The content will be fresh and fans, players and talent alike will all have a plethora of esports content at their fingertips going forward. Esports Insider says: Great news. No more tedious TV series, we can now finally watch esports on flights. Now watch as you get stuck in the middle seat, stick on Fnatic versus Team Secret from ESL One Frankfurt – and get some pretty odd looks from the people either side of you. The dream. Congratulations to ESL, this is a great idea and surely a fantastic partnership in the making.last_img read more

Read More