Young ISDR

From Diatom-L Doctoral student in Ecology  Linnaeus University Reference number:  2019/55-2.2.1 Deadline  March 8, 2019 Welcome to Linnaeus University! A place for knowledge, ideas and development. For growth potential and a belief in the future. In Småland and in the world. The Department of Biology and Environmental Science is part of the Faculty of Health and Life Sciences. The research activities within this multidisciplinary department include the areas of aquatic ecology, cell and organism biology, evolutionary biology, microbiology, environmental science and environmental engineering as well as disease ecology.  The marine microbiology research group in Kalmar seeks a PhD candidate for studies of the influence of concentrations of silica and phosphate on picocyanobacteria and diatoms to elucidate the effect of varying silica concentrations in the sea in deep time. The PhD study is part of a larger interdisciplinary research project in collab...

From Algae-L: The position is part of a project examining the role of microbial populations in recirculating aquaculture systems (RAS), in anaerobic digesters and in hydroponics (HYP) units with the goal of better understanding conditions that will maximise beneficial transfers of microbes and their products among components of decoupled aquaponics systems. There are many different approaches to examining these aspects of production, from the use of next-generation sequencing to map microbial communities, or biochemical analyses to characterize how microbes improve nutrition for fish and plants.  Hence the specific scientific background of the candidate is less important than their interest in the topics and demonstrated qualifications in their respective field. The candidate will be working in a multidisciplinary team of engineers, pathologists, food scientists, modellers and policy-makers involving several international research groups, thus exemplary teamwor...

From Algae-L The candidate will be responsible for cultivation in bioreactor systems of specific microbial assemblages that contribute to enhanced growth and well-being of live fishfeed (rotifers, brine shrimp) widely used in aquaculture. They will also work on microalgal production for shellfish, and biofloc systems for fish and shrimp.  Objectives for achieving project goals include: i) increased production of energy storage and other growth-enhancing compounds in biofloc  iv) heterotrophic and autotrophic microalgal enhancement of live feeds  ii) characterization of nutrients, including vitamins such as B12, amino acids such taurine, and their bioavailability in algal and biofloc biomass iii) physiological effects of enhanced feeds on gut health. You will find all of the info here: https://www.gu.se/english/about_the_university/job-opportunities/vacancies-details/?id=3613

One of the greatest current challenges in aquaculture is the ability to develop new and novel feed sources that are better able to utilize available nutrient and energy inputs. Aquaculture is growing rapidly, but its key inputs, including fishmeal from wild-caught lower trophic-level fish present a number of challenges for industry sustainability. Phytoplankton, bacteria and cyanobacteria have all been used as probiotic supplements in feed, but only more recently as a substitute for protein in feeds. Yet wild fish thrive while ingesting naturally occurring microbial communities (biofilm/periphyton, biofloc) and the use of microorganisms to boost aquaculture performance is not a new practice given that bacteria and yeasts are frequently used in commercial production as pre- and probiotic supplements and immunostimulants. However, only relatively recently have commercial operations demonstrated the utility of microbes as a direct nutrient source for a variety of farmed or...