scholarly journals Monitoring SARS-CoV-2 as a Microbiological Risk in Shellfish Aquaculture

2021 ◽  
Vol 8 ◽  
Author(s):  
Marcos Mateus ◽  
Miguel Remondes ◽  
Lígia Pinto ◽  
Alexandra Silva
2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Lies Indah Sutiknowati

The objective of this research was to evaluate waters quality in Pari island waters for aquaculture purpose based on bacteriological information conducted in Mei and September 2011. Microbiological parameters analyzed were total density of bacteria for coliforms, E.coli, pathogenic, heterotrophic, halotoleran, phosphate-nitrate-ammonia breaker, and total cells. Method to analyze coliform bacteria was filtration, identification of pathogenic bacteria using biochemical test, density analises for heterotrophic bacteria, analises for phosphate-nitrate-ammonia breaker bacteria using pour plate, and total cell using Acridine Orange Epifluorescence Microscopy. Results showed that the abundance of total coliform cell was about 1000-7000 colony forming unit (cfu)/100 ml. The abundance of heterotrophic, halotolerant, phosphate-nitrate-ammonia bacteria in seawater was (3.6-4.3)x105 cfu/ml, (1.1-1.3)x105 cfu/ml, (0.5-3.44)x103cfu/ml; and (3.6-6.7)x105 cfu/ml, (1.6-2.7)x105 cfu/ml, (0.6-5.22)x103 cfu/ml in sediment, respectively. The total cell of bacteria was (0.05-2.1)x107cells/ml. The dog-conch (Strombus turturella) and blood-clamps (Anadara granosa) can survive in Pari Island and there was a significant increase in sea grass litter with growth average of 0.67 mm/day and 0.90 mm/day. During snails and clamps growth, there were found several genus of pathogenic bacteria such as Salmonella, Vibrio, Aeromonas, Pseudomonas, Citrobacter, Proteus, Shigella, Hafnia, and Yersinia. The results showed that Pari island waters was suitable for developing shellfish aquaculture dog conch and blood clamps. Keywords: bacteria, parameter, shellfish, aquaculture.


2017 ◽  
Vol 21 (5) ◽  
pp. 402-425 ◽  
Author(s):  
Tania Gomes ◽  
Ambrogina Albergamo ◽  
Rosaria Costa ◽  
Luigi Mondello ◽  
Giacomo Dugo

2011 ◽  
Vol 42 (2) ◽  
pp. 242-252 ◽  
Author(s):  
Charles M. Adams ◽  
Sandra E. Shumway ◽  
Robert B. Whitlatch ◽  
Tessa Getchis

2013 ◽  
pp. 1436-1458
Author(s):  
Francis X. O’Beirn ◽  
Christopher W. McKindsey ◽  
Thomas Landry ◽  
Barry A. Costa-Pierce

2020 ◽  
Vol 42 (2) ◽  
pp. 151-166
Author(s):  
A Santa Marta ◽  
JG Ferreira ◽  
GC Pitcher ◽  
J Lencart e Silva

2012 ◽  
Vol 616-618 ◽  
pp. 1647-1653 ◽  
Author(s):  
Ning Yu ◽  
Mao Jian Wang ◽  
Zhen Bo Lu ◽  
Fan Li ◽  
Ming Liang Zhang

In order to better manage shellfish aquaculture, a fifty-year variability in shellfish production in Jiaozhou Bay was quantitatively simulated with the Modeling Approach to Resource economics decision-maKing in EcoaquaculTure (MARKET) which is a scenario-testing tool linking economic and ecological analyses. Four scenarios were defined to assess the model sensitivity to per capita income growth rate, price growth rate and maximum cultivation area. Results indicate that the MARKET model follows the expected trends regarding the economic theory. And the shellfish supply is limited by the maximum cultivation area in the long run. However, a lower demand does not imply a corresponding decrease in net profit. Although price growth can make up for a partial loss caused by the reduction of available cultivation area, the compensatory measure cannot guarantee the increasing net profits of farmers in the long term. The information provides important implications for aquaculture management in the context of resource decline.


2017 ◽  
Vol 60 (5) ◽  
pp. 1721-1728 ◽  
Author(s):  
Zhiying Han ◽  
Changwei Li ◽  
Rong Fan ◽  
Xiaochang Lin ◽  
Dezhao Liu ◽  
...  

Abstract. The booming shellfish aquaculture industry in China generates a large amount of oyster shell (OS) as a byproduct, which poses an urgent threat to the sensitive ecosystem. In this study, the feasibility of enhanced NH4+-N removal from wastewater using OS as an alkalinity provider was explored using a set of shaken flasks continuously operated in batch mode. The results indicated that NH4+-N removal was enhanced due to the presence of OS, considering the variations in NH4+-N concentration and NH4+-N removal efficiency. Furthermore, the nitrification rate, calculated as NH4+-N removed per hour, was higher with greater OS addition. The most important result is an equation for estimating OS addition, based on alkalinity analysis, that provides a reference for the design of nitrifying biofilters with OS as media. Additionally, the alkalinity released from OS due to biological nitrification was confirmed using x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Keywords: Alkalinity, Ammonia nitrogen, Nitrification, Oyster shell (OS), pH, Wastewater.


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