Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF
Vibrio species have been associated with recurrent mass mortalities of juvenile oysters Crassostrea gigas threatening oyster farming worldwide. However, knowledge of the ecology of pathogens in affected oyster farming areas remains scarce. Specifically, there are no data regarding (i) the environmen...
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ftfrontimediafig:oai:figshare.com:article/7245332 2023-05-15T15:59:05+02:00 Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF Carmen Lopez-Joven Jean-Luc Rolland Philippe Haffner Audrey Caro Cécile Roques Claire Carré Marie-Agnès Travers Eric Abadie Mohamed Laabir Delphine Bonnet Delphine Destoumieux-Garzón 2018-10-24T04:12:34Z https://doi.org/10.3389/fmicb.2018.02530.s001 https://figshare.com/articles/Image_1_Oyster_Farming_Temperature_and_Plankton_Influence_the_Dynamics_of_Pathogenic_Vibrios_in_the_Thau_Lagoon_TIF/7245332 unknown doi:10.3389/fmicb.2018.02530.s001 https://figshare.com/articles/Image_1_Oyster_Farming_Temperature_and_Plankton_Influence_the_Dynamics_of_Pathogenic_Vibrios_in_the_Thau_Lagoon_TIF/7245332 CC BY 4.0 CC-BY Microbiology Microbial Genetics Microbial Ecology Mycology Vibrio shellfish farming bivalve mollusks mortality outbreak phytoplankton zooplankton Image Figure 2018 ftfrontimediafig https://doi.org/10.3389/fmicb.2018.02530.s001 2018-10-24T22:57:16Z Vibrio species have been associated with recurrent mass mortalities of juvenile oysters Crassostrea gigas threatening oyster farming worldwide. However, knowledge of the ecology of pathogens in affected oyster farming areas remains scarce. Specifically, there are no data regarding (i) the environmental reservoirs of Vibrio populations pathogenic to oysters, (ii) the environmental factors favoring their transmission, and (iii) the influence of oyster farming on the persistence of those pathogens. This knowledge gap limits our capacity to predict and mitigate disease occurrence. To address these issues, we monitored Vibrio species potentially pathogenic to C. gigas in 2013 and 2014 in the Thau Lagoon, a major oyster farming region in the coastal French Mediterranean. Sampling stations were chosen inside and outside oyster farms. Abundance and composition of phyto-, microzoo-, and mesozooplankton communities were measured monthly. The spatial and temporal dynamics of plankton and Vibrio species were compared, and positive correlations between plankton species and vibrios were verified by qPCR on isolated specimens of plankton. Vibrio crassostreae was present in the water column over both years, whereas Vibrio tasmaniensis was mostly found in 2013 and Vibrio aestuarianus was never detected. Moreover, V. tasmaniensis and V. crassostreae were found both as free-living or plankton-attached vibrios 1 month after spring mortalities of the oyster juveniles. Overall, V. crassostreae was associated with temperature and plankton composition, whereas V. tasmaniensis correlated with plankton composition only. The abundance of Vibrio species in the water column was similar inside and outside oyster farms, suggesting important spatial dispersion of pathogens in surrounding areas. Remarkably, a major increase in V. tasmaniensis and V. crassostreae was measured in the sediment of oyster farms during cold months. Thus, a winter reservoir of pathogenic vibrios could contribute to their ecology in this Mediterranean shellfish farming ... Still Image Crassostrea gigas Frontiers: Figshare |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Microbiology Microbial Genetics Microbial Ecology Mycology Vibrio shellfish farming bivalve mollusks mortality outbreak phytoplankton zooplankton |
spellingShingle |
Microbiology Microbial Genetics Microbial Ecology Mycology Vibrio shellfish farming bivalve mollusks mortality outbreak phytoplankton zooplankton Carmen Lopez-Joven Jean-Luc Rolland Philippe Haffner Audrey Caro Cécile Roques Claire Carré Marie-Agnès Travers Eric Abadie Mohamed Laabir Delphine Bonnet Delphine Destoumieux-Garzón Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
topic_facet |
Microbiology Microbial Genetics Microbial Ecology Mycology Vibrio shellfish farming bivalve mollusks mortality outbreak phytoplankton zooplankton |
description |
Vibrio species have been associated with recurrent mass mortalities of juvenile oysters Crassostrea gigas threatening oyster farming worldwide. However, knowledge of the ecology of pathogens in affected oyster farming areas remains scarce. Specifically, there are no data regarding (i) the environmental reservoirs of Vibrio populations pathogenic to oysters, (ii) the environmental factors favoring their transmission, and (iii) the influence of oyster farming on the persistence of those pathogens. This knowledge gap limits our capacity to predict and mitigate disease occurrence. To address these issues, we monitored Vibrio species potentially pathogenic to C. gigas in 2013 and 2014 in the Thau Lagoon, a major oyster farming region in the coastal French Mediterranean. Sampling stations were chosen inside and outside oyster farms. Abundance and composition of phyto-, microzoo-, and mesozooplankton communities were measured monthly. The spatial and temporal dynamics of plankton and Vibrio species were compared, and positive correlations between plankton species and vibrios were verified by qPCR on isolated specimens of plankton. Vibrio crassostreae was present in the water column over both years, whereas Vibrio tasmaniensis was mostly found in 2013 and Vibrio aestuarianus was never detected. Moreover, V. tasmaniensis and V. crassostreae were found both as free-living or plankton-attached vibrios 1 month after spring mortalities of the oyster juveniles. Overall, V. crassostreae was associated with temperature and plankton composition, whereas V. tasmaniensis correlated with plankton composition only. The abundance of Vibrio species in the water column was similar inside and outside oyster farms, suggesting important spatial dispersion of pathogens in surrounding areas. Remarkably, a major increase in V. tasmaniensis and V. crassostreae was measured in the sediment of oyster farms during cold months. Thus, a winter reservoir of pathogenic vibrios could contribute to their ecology in this Mediterranean shellfish farming ... |
format |
Still Image |
author |
Carmen Lopez-Joven Jean-Luc Rolland Philippe Haffner Audrey Caro Cécile Roques Claire Carré Marie-Agnès Travers Eric Abadie Mohamed Laabir Delphine Bonnet Delphine Destoumieux-Garzón |
author_facet |
Carmen Lopez-Joven Jean-Luc Rolland Philippe Haffner Audrey Caro Cécile Roques Claire Carré Marie-Agnès Travers Eric Abadie Mohamed Laabir Delphine Bonnet Delphine Destoumieux-Garzón |
author_sort |
Carmen Lopez-Joven |
title |
Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
title_short |
Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
title_full |
Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
title_fullStr |
Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
title_full_unstemmed |
Image_1_Oyster Farming, Temperature, and Plankton Influence the Dynamics of Pathogenic Vibrios in the Thau Lagoon.TIF |
title_sort |
image_1_oyster farming, temperature, and plankton influence the dynamics of pathogenic vibrios in the thau lagoon.tif |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmicb.2018.02530.s001 https://figshare.com/articles/Image_1_Oyster_Farming_Temperature_and_Plankton_Influence_the_Dynamics_of_Pathogenic_Vibrios_in_the_Thau_Lagoon_TIF/7245332 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_relation |
doi:10.3389/fmicb.2018.02530.s001 https://figshare.com/articles/Image_1_Oyster_Farming_Temperature_and_Plankton_Influence_the_Dynamics_of_Pathogenic_Vibrios_in_the_Thau_Lagoon_TIF/7245332 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2018.02530.s001 |
_version_ |
1766394864306487296 |