Flavobacterium columnare in common carp (Cyprinus carpio) and rainbow trout (Oncorhynchus mykiss): antimicrobial susceptibility and interplay with its host


StressChron Framework:

Project code043
Research areaUnravelling the impact of chronic stress across vertebrates
Research topicMicrobial endocrinology, interaction between bacteria, glucocorticoids and
the stress level in fish
SpeciesBacteria Flavobacterium columnare



The research goal is to use scale cortisol as a reflection of the fish’s exposure to chronic stress using a bacterial infection with the fish pathogen Flavobacterium columnare eliciting skin and gill disease as a stressor as well as contribute to the elucidation of the enigma of the interplay between bacterial pathogens, glucocorticoids and the hypothalamic-pituitary-interrenal (HPI) axis. The engendered data will provide fundamental research insights into the bacterial pathogen acting as a stressor and will facilitate the nowadays imperative sustainable development of aquaculture.



Keywords: aquaculture, fish, stress, glucocorticoids, bacteria, pathogen

Funding: Ghent University (BOF.PDO.2015.0020.01)

Status: on-going


Ghent University, Belgium (Aerts J, Declercq A, Decostere A)

Flanders Research Institute for Agriculture, Fisheries and Food, Belgium (Aerts J, Ampe B)



Declercq A M*, Aerts J*, Ampe B, Haesebrouck F, De Saeger S, Decostere A (2016) Cortisol directly impacts Flavobacterium columnare in vitro growth characteristics. Vet Res, 47:84 (Q1 - IF=2.815) (* co-first author)

Declercq A, Cai Naranjo E, Thongda W, Arias C, De La Fuente L, Beck B, Lange M, Peatman E, Aerts J, Decostere A (2017) The stress hormone cortisol: a (co-)regulator of biofilm formation in Flavobacterium columnare. European Association of Fish Pathologists, Belfast, Northern Ireland, September 6th 2017, abstract.