Increasing the dietary n-6/n-3 ratio alters the hepatic eicosanoid production after acute stress in Atlantic salmon (Salmo salar)

Earlier studies have indicated that a high inclusion of n-6 fatty acids (FA) in feeds for Atlantic salmon can affect the stress response. To test this hypothesis, Atlantic salmon (Salmo salar) were fed diets containing varying dietary n-6/n-3 FA ratios and different absolute levels of n-6 and n-3 FAs. The fish were divided into two different stress challenge groups, where one group was exposed to three weekly hypoxia challenges for 4 weeks (repeated stress), while one group was left undisturbed. At the end of the experiment, both groups were exposed to an acute stressor (lowering of water level). Thus, effects of the diets on acute stress, repeated stress and the combined effect of these could be investigated. In general, there were few effects of the repeated stress, while fish in all diet groups responded strongly to the acute stress based on several stress markers. Dietary n-6/n-3 ratio did not affect growth, all fish appeared phenotypically healthy, and all groups were able to mount an acute stress response. However, there was an interaction between diet and repeated stress on cortisol response after acute stress, possibly indicating altered hypothalamic-pituitary adrenal axis reactivity in fish fed high n-6/n-3 FA ratio. Hepatic levels of prostaglandin D2 (PGD2) and leukotriene B4 responded differently to acute stress depending on the dietary n-6/n3 FA ratio, indicating an altered acute stress response. Additionally, increasing the dietary n-6/n-3 FA content led to higher levels of PGD2 and PGE2 as well as higher liver triacylglycerol. In summary, the results suggest that increasing the dietary n-6/n-3 FA ratio in salmon feeds can affect the way they respond to stressors in an aquaculture setting, possibly affecting the fish robustness.publishedVersio

Winning wars, building (illiberal) peace? The rise (and possible fall) of a victor’s peace in Rwanda and Sri Lanka

This is an Accepted Manuscript of an article published by Taylor & Francis in Third World Quarterly on 25th September 2015, available online: http://www.tandfonline.com/10.1080/01436597.2015.1058150.© 2015 Southseries Inc., www.thirdworldquarterly.com.The literature on peacebuilding dedicates very little space, empirically and theoretically, to countries that are emerging from a war waged to a decisive outcome. This review essay looks at Sri Lanka and Rwanda, two countries where a victorious leadership has led the process of post-conflict reconstruction, largely by employing illiberal means. It looks at the effect of decisive war on statebuilding and at the role of local agency and illiberal practices in a post-victory context. It concludes by assessing the global significance and long-term sustainability of post-victory illiberal statebuilding

Testimony Under Threat : Women’s Voices and the Pursuit of Justice in Post-War Sri Lanka

This paper foregrounds how women’s public testimony as part of a formal transitional justice initiative is shaped by the particular context in which a commission operate, including the political and security environment. While the literature has engaged with the gendered predicaments of truth commissions after peace agreements and during transitions away from non-democratic rule, the function of such initiatives in more authoritarian and in immediate post-war contexts is generally overlooked. I examine women’s testimonies from Sri Lanka’s Lessons Learned and Reconciliation Commission (LLRC), and contend that pervasive militarization and insecurity, and the conduct of the Commission, influenced the stories that came forth. Women’s testimonies in the war-torn areas primarily represent pleas for information about missing family members and reflect important silences about the women’s own experiences of abuse, including ongoing post-war insecurities. The analysis raises questions about what may be expected from transitional justice efforts in difficult post-war contexts