First report of lesions resembling red mark syndrome observed in wild‐caught common dab (<i>Limanda limanda</i>)

Vercauteren, Maaike; Decostere, Annemie; Chiers, Koen

doi:10.1111/jfd.13104

Cited by 1 publication

(1 citation statement)

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“…Similar lesions, but lacking in-depth histological and pathological investigations, have been sporadically observed in other freshwater species such as brown trout (Salmo trutta), cutthroat trout (Oncorhynchus clarkii), as well as wild-caught rainbow trout (Metselaar et al, 2022). Similar cases have also been reported in saltwater species, as sea bream and wild-caught common dab (Limanda limanda; Bruno et al, 2007;Vercauteren et al, 2020).…”

Section: Introductionsupporting

confidence: 57%

Red mark syndrome: Is the aquaculture water microbiome a keystone for understanding the disease aetiology?

Bruno

Cafiso²,

Sandionigi³

et al. 2023

Front. Microbiol.

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Aquaculture significantly contributes to the growing demand for food worldwide. However, diseases associated with intensive aquaculture conditions, especially the skin related syndromes, may have significant implications on fish health and industry. In farmed rainbow trout, red mark syndrome (RMS), which consists of multiple skin lesions, currently lacks recognized aetiological agents, and increased efforts are needed to elucidate the onset of these conditions. Most of the past studies were focused on analyzing skin lesions, but no study focused on water, a medium constantly interacting with fish. Indeed, water tanks are environmental niches colonized by microbial communities, which may be implicated in the onset of the disease. Here, we present the results of water and sediment microbiome analyses performed in an RMS-affected aquaculture facility, bringing new knowledge about the environmental microbiomes harbored under these conditions. On the whole, no significant differences in the bacterial community structure were reported in RMS-affected tanks compared to the RMS-free ones. However, we highlighted significant differences in microbiome composition when analyzing different samples source (i.e., water and sediments). Looking at the finer scale, we measured significant changes in the relative abundances of specific taxa in RMS-affected tanks, especially when analyzing water samples. Our results provide worthwhile insight into a mostly uncharacterized ecological scenario, aiding future studies on the aquaculture built environment for disease prevention and monitoring.

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Section: Introductionsupporting

confidence: 57%