Distribution of Vibrio alginolyticus-like species in Shenzhen coastal waters, China

Abstract

We investigated the distribution of vibrios in Shenzhen coastal waters in order to obtain valuable information for the aquaculture industry and a health warning system. Quantities of vibrios from surface waters ranged from 0 to 4.40×104 CFUs mL-1 in April (spring), while from 0 to 2.57×103 CFUs mL-1 in September (autumn); the abundance of V. alginolyticus-like species from surface water ranged from 0 to 6.72×103 CFUs mL-1 in April (spring) and from 0 to 1.28×103 CFUs mL-1 in September (autumn); higher counts were observed in spring. The V. alginolyticus-like species was dominant in Shenzhen coastal waters, with the highest abundance in the clean region (stations YMK001 and GDN064) in April, suggesting that Vibrio spp. were naturally occurring bacteria in marine environments. The correlation between the abundance of vibrios (including V. alginolyticus-like species) and environmental factors varied in different regions and different seasons. There were no vibrios detected when the salinity was less than 11.15‰ in the Zhujiang River estuary, which indicated that salinity played a key role in the distribution of vibrios and V. alginolyticus-like species.

Advanced diagnosis of vibriosis among some marine fishes in lake Temsah, Egypt

“…Also, it was found that seasonal prevalence of Vibrio alginolyticus in S. auratus and T. zillii high in summer followed by in spring then autumn and at the last the winter. Also, these result in agreement with Lee et al, (2006) and Ming et al, (2011) who all confirmed that the temperature is the main predisposing factor of vibriosis and help in its development.…”

Ecology of Vibrio parahaemolyticus and Vibrio vulnificus in the Coastal and Estuarine Waters of Louisiana, Maryland, Mississippi, and Washington (United States)

“…Regression models incorporating an interaction between temperature and salinity were explored but did not significantly improve overall goodness-of-fit or otherwise provide an interpretation for the unexpected findings. Some studies have identified a significant relationship between vibrios and salinity (6,12,30,31,60,69,79), while others did not (47,60,66,68), so the relationship with salinity may be variable and complex. For example, Griffitt and Grimes (unpublished data) found that large salinity shifts, as seen during the opening of the Louisiana Bonnet Carré Spillway following the Mississippi River floods of 2011, can cause detectable and significant change in the relative numbers of pathogenic vibrios.…”

Influence of Environmental Factors on Vibrio spp. in Coastal Ecosystems

“…Positive correlations have been described for total vibrios in water (58,61,67) and sediment (64) ( Table 6). Negative and positive correlations have been described for a V. alginolyticuslike species (82). Positive relationships between chlorophyll and total Vibrio spp.…”

“…Total bacterial counts of non-Vibrio species have been positively correlated with total Vibrio counts in water (31,46,59,60,62,66,67,73,82,92) and negatively correlated with vibrios counts in water (61) ( Table 6). In addition, total bacterial counts were also positively correlated with total vibrios in mussels (59) and oysters (92).…”