In situ effective clearance rate measurement of mangrove oysters (Crassostrea rhizophorae) in a tropical estuary in Brazil

Sroczyńska, Katarzyna; Barroso, Gilberto Fonseca; Chı́charo, Luis

doi:10.2478/v10104-012-0024-0

Cited by 9 publications

(3 citation statements)

References 24 publications

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“…Amadi et al 13 However, the number of bacteria in organisms cannot be greater than in water. This result disagreed with the report by Sroczynska et al 14 , who recorded a higher bacterial load in oyster Crassostrea thizophorae tissues than in water. This result was in line with the assertation by Jahan et al 8 15 , which reported that excessive human activities might lead to an increase in organic matter, resulting in a high microbial load in the water.…”

Section: Resultscontrasting

confidence: 99%

Determination of Microbiological Load in Periwinkle (Tympanotonos fuscatus), Water and Sediment of Azubie/Woji Creek, Port Harcourt, Nigeria

Kpikpi

2023

Singapore J. Sci. Res

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Background and Objective: Microbiological loads are influenced by a variety of natural and anthropogenic factors in an environment. These characteristics have a bearing on the ecosystem's distribution, production and microbial community, as well as its overall integrity. This study was carried out to determine the microbiological load in Periwinkle (T. fuscatus), water and sediment of Azubie/Woji Creek, Port Harcourt, Rivers State, Nigeria. Materials and Methods: Periwinkle, sediment and water samples were collected from three locations for six months from January to June, 2021, along Azubie/Woji Creek Port Harcourt, Rivers State, Nigeria. Samples were analyzed for microbiological analysis following standard methods. Results: Microbiological load mean values range between total fungal count (TFC) 0.64×10 5 CFU gG 1 (periwinkle) and mean values hydrocarbon utilizing bacteria count (HUBC) 78.42×10 5 CFU gG 1 (sediment) while hydrocarbon utilizing fungal counts (HUFC) range between (1.32×10 5 CFU gG 1 ) periwinkle and (90.92 01×10 5 CFU gG 1 ) in water, fecal coliform count (FCC) range from (0.90×10 5 CFU gG 1 ) periwinkle to (109×10 5 CFU gG 1 ) in water and total Vibrio count (VC) range from (0.94×10 5 CFU gG 1 ) periwinkle to (9.03×10 5 CFU gG 1 ) water. In the study, twelve genera of bacteria and four genera of fungi were identified. The species were Escherichia coli, Bacillus sp., Proteus sp., Streptococcus sp., Staphylococcus aureus, Enterobacter aeroens, Pseudomonas sp., Klebsiella sp., Serrata sp., Shigella sp., Salmonella sp. and Vibrio (bacteria) while Aspergillus sp., Penicillium, Rhizopus and Fusarium sp. (fungi). Conclusion:The high feasible bacteria count indicated that the river was contaminated. To lessen the risky consequences on the locals who depend on the biota for survival, there is a desire for sensitization and even monitoring of the Azubie/Woji Creek.

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Section: Resultscontrasting

confidence: 99%

Determination of Microbiological Load in Periwinkle (Tympanotonos fuscatus), Water and Sediment of Azubie/Woji Creek, Port Harcourt, Nigeria

Kpikpi

2023

Singapore J. Sci. Res

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“…For a specific oyster species, f can be expressed explicitly as it is a function of several environmental factors such as temperature, salinity, the dry weight of the oyster, and total suspended solids (TSS) if observational data are available. The function can vary among oyster species ( 23 , 24 , 33 ). For example, Crassostrea virginica reaches its highest filtration rate at around 27°C ( 24 ), while Crassostrea gigas reaches its highest rate at a lower temperature of around 19°C ( 34 ).…”

Section: Resultsmentioning

confidence: 99%

A Deterministic Model for Understanding Nonlinear Viral Dynamics in Oysters

Qin¹,

Shen²,

Reece³

2022

Appl Environ Microbiol

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“…Together with mangroves root system, bivalve's mollusks of genus Crassostrea rhizophorae, generally known as mangrove oyster, build great communities both in the estuary edges and stuck to the substrate in the inner mangrove forest (Sroczyńska et al, 2012). Some of those mollusks are able to filter roughly 100 L of water per day (Suplicy, 2000); because they absorb toxins, pollutants and microorganisms (Corporeau et al, 2012), the concentration of biotic and abiotic elements in their tissues is a reliable indicator of environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Microbiological monitoring of water and Crassostrea rhizophorae in a mangrove ecosystem in Brazil

Cabral¹,

Barbirato²,

Arpini³

et al. 2017

Afr. J. Microbiol. Res.

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Mangroves are considered as natural nurseries and classified as permanent protected areas. The study area is the municipal ecological site of Ilha do Lameirão, covering 891.83 ha of mangrove forest. This area persistently suffers from anthropic pressure. For this reason, there is the need to study and monitor the microbiological characteristics and recognition of the main factors involved in the degradation of mangroves process. This study was done in the year 2014. Samples were taken every month during dry and rainy seasons. Two areas (Maria Ortiz and Canal dos Escravos) were chosen based on the degree of their vulnerability to anthropic pressure. The results show there is a microbiological contamination both in water and Crassostrea rhizophorae tissues, mainly in samples taken from Maria Ortiz. According to the results, the Canal dos Escravos estuary, known as Class 1 is an environment that is able to maintain aquatic communities and fishing activities. In oyster tissues, microorganism strains that indicate the pathogens which cause diseases in humans were identified.

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In situ effective clearance rate measurement of mangrove oysters (Crassostrea rhizophorae) in a tropical estuary in Brazil

Cited by 9 publications

References 24 publications

Determination of Microbiological Load in Periwinkle (Tympanotonos fuscatus), Water and Sediment of Azubie/Woji Creek, Port Harcourt, Nigeria

Determination of Microbiological Load in Periwinkle (Tympanotonos fuscatus), Water and Sediment of Azubie/Woji Creek, Port Harcourt, Nigeria

A Deterministic Model for Understanding Nonlinear Viral Dynamics in Oysters

Microbiological monitoring of water and Crassostrea rhizophorae in a mangrove ecosystem in Brazil

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