Kordia

Abstract

Kor'di.a. N.L. fem. n. Kordia arbitrary name derived from the acronym KORDI , which stands for Korea Ocean Research and Development Institute. Bacteroidetes / Flavobacteriia / Flavobacteriales / Flavobacteriaceae / Kordia Straight rods . Nonmotile and nongliding. Gram‐stain‐negative. Strictly aerobic. Oxidase‐positive, but catalase‐negative. Produce extracellular polysaccharides and carotenoid‐type pigments , but not flexirubin‐type pigments. Several carbohydrates are used as sole carbon sources. Unable to grow in the absence of any of the ions Na + , Ca 2 + , and Mg 2 + . Require 1–5 % ( w / v ) NaCl for growth , with optimal growth in 3% NaCl. Degrade gelatin, skimmed milk, and starch. Major cellular fatty acids are saturated iso‐branched and 3‐hydroxy iso‐branched fatty acids. The respiratory quinone is menaquinone‐6. DNA G + C content ( mol %): 34. Type species : Kordia algicida Sohn, Lee, Yi, Chun, Bae, Ahn and Kim 2004 , 678 VP .

A case study of biofilter activation and microbial nitrification in a marine recirculation aquaculture system for rearing Atlantic salmon (Salmo salarL.)

“…However, the differences in rearing conditions allowed us to compare 'cold start' with high stocking densities and low stocking densities. Bernardet, 2015;Bowman & McMeekin, 2015;Deming & Junge, 2015;Kim, 2015;McIlroy & Nielsen, 2014;Nedashkovskaya & Kim, 2019;Xiao et al, 2019). However, few of the dominating taxa detected at genus level in this study were recognized among dominating taxa described in previous studies from aquaculture systems (Brailo et al, 2019;Rurangwa & Verdegem, 2015;Schreier et al, 2010).…”

“…The analysed biofilms in the two biofilters had many taxa in common at the end of the rearing cycle. The dominating taxa common for both biofilters included Neptuniibacter , Glaciecola , Colwellia , Kordia , Flavobacterium , Algibacter , Planctomycetes (OM190) and members within Saprospiraceae and Alteromonadaceae , which were closely related to cultured organoheterotrophic species isolated from seawater and marine habitats worldwide (Arahal et al., 2007; Bernardet, 2015; Bowman & McMeekin, 2015; Deming & Junge, 2015; Kim, 2015; McIlroy & Nielsen, 2014; Nedashkovskaya & Kim, 2019; Xiao et al., 2019). However, few of the dominating taxa detected at genus level in this study were recognized among dominating taxa described in previous studies from aquaculture systems (Brailo et al., 2019; Rurangwa & Verdegem, 2015; Schreier et al., 2010).…”