Mediterranean Sea heatwaves jeopardize greater amberjack's (Seriola dumerili) aquaculture productivity through impacts on the fish microbiota.

Climate change is dramatically increasing the frequency and severity of marine heatwaves (MHWs) in the Mediterranean basin, strongly affecting marine food production systems. However, how it will shape the ecology of aquaculture systems, and the cascading effects on productivity, is still a major knowledge gap. The present work aims to increase our understanding of future impacts, caused by raising water temperatures, on the interaction between water and fish microbiotas, and consequential effects upon fish growth. Thus, the bacterial communities present in the water tanks, and mucosal tissues (skin, gills and gut), of greater amberjack farmed in recirculatory aquaculture systems (RAS), at three different temperatures (24, 29 and 33 °C), were characterized in a longitudinal study. The greater amberjack (Seriola dumerili) is a teleost species with high potential for EU aquaculture diversification due to its fast growth, excellent flesh quality and global market. We show that higher water temperatures disrupt the greater amberjack's microbiota. Our results demonstrate the causal mediation exerted by this bacterial community shifts on the reduction of fish growth. The abundance of members of the Pseudoalteromonas is positively correlated with fish performance, whereas members of the Psychrobacter, Chryseomicrobium, Paracoccus and Enterovibrio are suggested as biomarkers for dysbiosis, at higher water temperatures. Hence, opening new evidence-based avenues for the development of targeted microbiota-based biotechnological tools, designed to increase the resilience and adaptation to climate change of the Mediterranean aquaculture industry.

Impact of Implementing a Protocol on the Perioperative Management in Patients Treated with Antithrombotics Admitted for Hip Fracture Surgery: an Observational Study.

This study aimed to describe the impact of implementing a protocol on the perioperative management of patients admitted for hip fracture treated with antithrombotics. A protocol was designed based on the recommendations from the American College of Chest Physicians (ACCP). After its implementation (May 2012), information on antithrombotic management was collected from admission to 3 months after surgery in retrospective (October 2011-March 2012) and prospective (October 2012-March 2013) cohorts. Patients' thromboembolic risk was classified into high, moderate or low according to the ACCP categories. A total of 113 and 101 cases were included in the retrospective and prospective cohorts, respectively. No differences in age, gender, American Society of Anaesthesiology score or thrombotic risk categories were observed between cohorts. Most patients were treated with aspirin or triflusal (55.1% and 48.1% in each cohort, respectively), clopidogrel (24.5% and 26.6%) or acenocoumarol (16.3% and 20.2%). In moderate to high thromboembolic risk patients, a higher rate of bridging therapy with full doses of enoxaparin (18.5% and 50%, p = 0.04 before and 9.1% and 43.7%, p = 0.02 after surgery) and a lower rate of aspirin discontinuation (76% and 55.3%, p = 0.03) were observed in the prospective cohort. Both cohorts had a similar percentage of cases with bleeding (68.1% and 68.3%) and thrombotic events (11.5% and 13%). No differences in the timing between surgery and the discontinuation or resumption of antithrombotics were noted. After the protocol implementation, aspirin was less often stopped and bridging therapy with therapeutic doses of enoxaparin was used more often. However, interruption and resumption times of antithrombotics remained almost unchanged. In order to achieve these goals, more efforts should be made to implement the protocol in clinical practice.

Pectin content and composition from different food waste streams.

In the present paper, 26 food waste streams were selected according to their exploitation potential and investigated in terms of pectin content. The isolated pectin, subdivided into calcium bound and alkaline extractable pectin, was fully characterized in terms of uronic acid and other sugar composition, methylation and acetylation degree. It was shown that many waste streams can be a valuable source of pectin, but also that pectin structures present a huge structural diversity, resulting in a broad range of pectin structures. These can have different physicochemical and biological properties, which are useful in a wide range of applications. Even if the data could not cover all the possible batch by batch and country variabilities, to date this represents the most complete pectin characterization from food waste streams ever reported in the literature with a homogeneous methodology.

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