Distribution of Bacteria Load in Fish Tissues, Pond Water and Sediment in Oyo State, Nigeria

2016 ◽  
Vol 51 (1) ◽  
pp. 1
Author(s):  
Ibrahim Adeshina ◽  
Samuel Umma ◽  
O Adesanmi ◽  
YA Adewale
Keyword(s):  
Pond Water ◽  
Fish Tissues ◽  
Water And Sediment

scholarly journals Herbicide Levels in Nursery Containment Pond Water and Sediments

1994 ◽  
Vol 12 (1) ◽  
pp. 8-12 ◽  
Author(s):  
N. D. Camper ◽  
T. Whitwell ◽  
R. J. Keese ◽  
M. B. Riley
Keyword(s):  
Solid Phase ◽  
Pond Water ◽  
Column Method ◽  
Water And Sediment ◽  
Repeated Applications ◽  
Irrigation Levels ◽  
Phase Column

Abstract Herbicide movement from broadcast granular applications via runoff waters into containment ponds was monitored over a two-year period. The nursery site was approximately 20 ha (50 A) and contained all runoff waters and recycled it for irrigation. Levels of pendimethalin, oryzalin and oxyfluorfen applied as either OH-2 or Rout herbicides were determined in containment pond water and sediment. Herbicides were extracted by a solid-phase column method and analyzed by HPLC with confirmation by GC-MS. Generally, low herbicide levels (highest level detected was 0.013 μg/ml in water and 12 μg/g in sediment) were detected compared to quantities applied [12 to 50 kg (26 to 110 lb) ai per year]. Results showed that herbicide levels did not accumulate in containment ponds following repeated applications and there was no correlation of herbicide levels detected with amount or timing of herbicide applications.

Bacteriological study of bottom soil of three extensive fish farm ponds

2021 ◽  
Vol 33 (1) ◽  
pp. 75-80
Author(s):  
AFRIN SULTANA ◽  
MD. NAZRUL ISLAM ◽  
MD. FARHAN TAZIM ◽  
MD BADIUL ALAM SHUFOL ◽  
MD. NAIM UDDIN ◽  
...  
Keyword(s):  
Physicochemical Parameters ◽  
Bacterial Count ◽  
Pond Water ◽  
Viable Count ◽  
Fish Ponds ◽  
Bacteriological Study ◽  
Sediment Samples ◽  
Bottom Soil ◽  
Water And Sediment ◽  
Soil Sediment

The study was conducted for bacteriological assessment of pond bottom soil (sediment) from three selected fish ponds of Bangladesh Agricultural University. Samples were collected both in winter and summer seasons to see the seasonal variations of some bacterial genera. Physicochemical parameters of the pond water and sediment were also estimated monthly. Sediment samples were collected from the shore and middle zone of the ponds. All sediment samples were acidic. The total viable count of bacteria in pond sediment ranged from (8.5×106) to (4.9×109) cfu/g and bacterial count were higher in summer than in winter. A total of 16 bacterial genera were identified from the sediments. The predominant microflora consisted of Aeromonas, Flavobacterium, Cytophaga, Escherichia, Bacillus, Micrococcus, Staphylococcus, Aerococcus, Acinetobacter, Pseudomonas and Moraxella while the first five listed the greatest abundance. Aeromonas was the most dominant organism. Bacterial diversification was found higher in summer than in winter.

scholarly journals Comparative Assessment and Source Identification of Heavy Metals in Selected Fishpond Water, Sediment and Fish Tissues/Organs in Osun State, Nigeria

2014 ◽  
Vol 4 (7) ◽  
pp. 42-53 ◽  
Author(s):  
Omolara T. Aladesanmi ◽  
Isaac F. Adeniyi ◽  
Ibukun M. Adesiyan
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Pond Water ◽  
Fish Muscle ◽  
Atomic Absorption Spectrophotometry ◽  
African Catfish ◽  
Sample Type ◽  
Fish Tissues ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations

Background. The potential toxicity of metals in water may have detrimental effects on the biochemical processes of aquatic organisms, especially fish, which serve as a source of protein in the protein-deficient Nigerian diet. Objective. The present study aimed to determine the concentration of heavy metals in African catfish (C. gariepinus) and investigate the health risk associated with heavy metals in fish. Methods. Heavy metal concentrations in the water samples were determined using atomic absorption spectrophotometry (AAS) and particle induced x-ray emission spectroscopy (PIXE) for sediment and fish tissues/organ samples. Results. Mean nickel (Ni) concentrations differed significantly (p<0.05) by sample type in both the dry and rainy seasons. Similarly, during the rainy season, mean lead (Pb) concentrations in all of the samples from Osogbo differed significantly (p<0.05) by type, with the highest concentration in fish muscle (10.11±1.21 μg/kg) and the lowest Pb concentration in pond water (1.72±0.05 μg/L). Mean chromium (Cr) concentrations of samples from the Ewuru/Rara stream in Yakoyo also differed significantly (p<0.05) by type, with the highest concentration in fish muscle (113.10.±10.07 μg/kg) and the lowest concentration in pond water (3.31±0.22 μg/L). Discussion. Heavy metal concentrations in pond and stream sediment samples revealed transport and deposition processes where trace metals are deposited and incorporated into sediment after entering the aquatic system. Iron (Fe) had the highest concentration levels ranging from (196.21 μg/g – 698.65 μg/g) in the three locations investigated, while Pb levels were the lowest, ranging from (9.05 μg/g – 75.30 μg/g). Conclusions. In general, the concentrations of Cr, copper (Cu) and manganese (Mn) were below standard guidelines, while the concentrations of nickel (Ni) and lead (Pb) were fairly higher than the tolerable limits for water pollution standards.

scholarly journals Distribution of Vibrio parahaemolyticus in Farmed Shrimp Penaeus vannamei, Farm Water and Sediment

2021 ◽  
Vol 15 (3) ◽  
pp. 1608-1616
Author(s):  
Vandita Kohli ◽  
Ramasubramanian Vaidhyanathan ◽  
Amjad K. Balange ◽  
Binaya Bhusan Nayak ◽  
Sanath H. Kumar
Keyword(s):  
Vibrio Parahaemolyticus ◽  
Marine Bacterium ◽  
Marker Gene ◽  
Pond Water ◽  
Molecular Techniques ◽  
Penaeus Vannamei ◽  
Pathogenic Potential ◽  
Specific Pcr ◽  
Conventional Culture ◽  
Water And Sediment

The halophilic marine bacterium Vibrio parahaemolyticus is a zoonotic pathogen associated with wild-caught and farmed shrimp. The bacterium is an important cause of gastroenteritis associated with the consumption of raw or undercooked seafood. In the present study, the prevalence and human pathogenic potential of Vibrio parahaemolyticus in Penaeus vannamei (tissue and hepatopancreas) and the farm environment (water and sediment) was investigated by conventional culture and molecular techniques. The total Vibrio counts of P. vannamei ranged from <1 CFU/mL in hemolymph to 7.61 log CFU/g in the hepatopancreas. The sediment samples consistently showed the counts of 6-7 log CFU/g, while the pond water had Vibrio counts in the range of 2-3 log CFU/ml. Of 120 Vibrio isolates identified, 87 were confirmed as V. parahaemolyticus based on the toxR and tlh gene-specific PCR. The virulence marker gene tdh was not detected in any of the isolates, while the trh gene was detected in 3 (3.6%) isolates. Although the incidence of pathogenic V. parahaemolyticus in farmed P. vannamei is low, the high numbers of total vibrios and V. parahaemolyticus demand constant monitoring of animals and the farm environment for human pathogenic strains of V. parahaemolyticus.

PROGRESS TOWARD IDENTIFYING CAUSES OF MALDEVELOPMENT INDUCED IN XENOPUS BY POND WATER AND SEDIMENT EXTRACTS FROM MINNESOTA, USA

1999 ◽  
Vol 18 (10) ◽  
pp. 2316 ◽  
Author(s):  
Douglas J. Fort ◽  
Robert L. Rogers ◽  
Holly F. Copley ◽  
Lizabeth A. Bruning ◽  
Enos L. Stover ◽  
...  
Keyword(s):  
Pond Water ◽  
Water And Sediment
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