Activity: Talks and presentations › Conference presentations
early life stages of marine fish are vulnerable to infections in intensified aquaculture (Vadstein et al., 2018) due to their yet undeveloped immune system and high stocking densities. This is in particular relevant for early life stages of the European eel Anguilla anguilla, where bactericidal treatments may prove useful short term (Sørensen et al., 2014), while in the long run destroying beneficial bacteria and hence potentially decreasing stability of the microbial community (Vadstein et al., 2018). Studies optimizing conditions supporting favorable microbial community such as substratum, nutrition, filtering, and water retention time may improve stability and rearing success in recirculating aquaculture systems (RAS). This study examines vital processes around eel embryos during egg incubation and subsequent hatch and survival of larvae coupled with novel insight into fluorescent organic matter, egg associated bacterial colonization in different sea water environments, and pelagic bacteria levels.