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  • 1
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24208 | 19325 | 2018-05-19 06:39:34 | 24208 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: The microbial load of four different fish species from five different market locations in Ibadan metropolis were determined using standard microbiological procedures. The bacteria count of fish sampled from Ojo market was the highest while the bacteria count of the fish sample from Bodija market was the lowest. There was no significant difference (p〈0.05) in the microbial load of the fish sampled from various market locations in Ibadan metropolis. Similarly, there was no significant difference (p〉0.05) in the microbial load on various fish species sold in Ibadan metropolis. The isolated bacteria from the study were: E. coli, Salmonella spp, Klebsiella spp, Staphylococcus aureus, Aerosomonas spp, Pseudomonas spp, Vibrio spp, Serratia spp, Chromobacterium spp, Enterobacteria spp and Shigella spp. The fungi count of fish sampled from Omi markets was the highest while the fungi count of the fish sampled from Ojo market was the lowest. The following fungi were however isolated from the study: Aspergillus flavus, Penicillium spp, Fusarium oxysporum, Trrichoderma spp and Ceotrichium albidium. The study shows that reheating may be necessary to destroy or inactivate micro-organisms in smoked fish before consumption.
    Beschreibung: Includes: 2 tables and 2 figures.;Also includes: 17 refernces.
    Schlagwort(e): Fisheries ; Nigeria ; Ibadan ; Bacteria ; Fungi ; Market ; Fish species ; freshwater environment ; Microbial contamination ; Microorganisms ; Bacteria ; Freshwater fish ; Cured products ; Sample contamination ; Fungi ; Public health ; Quality assurance ; Disinfection
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 223-227
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  • 2
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    FISON | Minna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24094 | 19325 | 2018-05-16 13:01:01 | 24094 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: This study reports the microbial flora of differently processed tilapia fish obtained from Olomoore market, Abeokuta, Nigeria. Samples were purchased, differently processed (using smoking, salting, freezing) and analyzed for the presence of bacteria. Microbial loads and characterisation were examined on the gills and the skin using standard microbiological procedures. The progression of growth was also monitored within I0-day storage period for the differently processed fish. 〈i〉Proteus vulgaris, Leuconostoc meseritiroides, Klebsiella planticola〈/i〉, Pseudomonas spp, 〈i〉Staphylococcus aureus, Bacillus subtitles〈/i〉, Enterobacter spp, 〈i〉Proteus vulgaris〈/i〉, Lactobacillus spp. were the bacteria isolated from the differently processed fish. There was no significant difference (P~B 0. 05) in the bacteria load of the gill during the first day of processing. However, significant variation (P~B 0. 05) existed in the bacteria load of the skin of the fish during the first day of processing. Although no significant difference (P~B 0. 05) was recorded in the bacteria load of the gill and the skin of the fish during the first day of processing in nutrient agar medium. In the tenth day frozen fish gill had the highest bacteria load while smoked fish gill had the lowest bacteria load there was significant difference (P~B 0. 05) in the bacteria load on the gill of differently processed fish gill. Similarly, there was significant variation (P~0.05) in the bacteria load of the skin of the fish during the tenth day processing.
    Beschreibung: Includes: 3 tables;Also includes: 29 refs.
    Schlagwort(e): Fisheries ; Proteus vulgaris ; Leuconostoc meseritiroides ; Klebsiella planticola ; Staphylocoooccus aureus ; Bacillus subtilis ; Nigeria ; Bacteria ; Microbial ; Occurrence ; Tilapia ; Smoking ; Salting ; Boiling ; freshwater environment ; Microorganisms ; Fishery products ; Processing fishery products ; Fish ; Gills ; Fish diseases ; Skin ; Bacterial diseases ; Pathogens
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 179-185
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  • 3
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24166 | 19325 | 2018-05-13 18:40:22 | 24166 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: Probiotics are a promising feed additive to stimulate animal growth and secure a low disease response in aquaculture industry where there are high stocking densities in shrimp and fish production. Fermented locust beans (Parkia biglobosa) are known to be rich in protein and used as food condiment. Probiotic bacteria were isolated from this locally available food material. Culture and characterizations of isolates were carried out. Sugar fermentation patterns were determined by using an API 50 CHL system and incubation were performed anaerobically at 37~'C. MRS broth culture grown at 37~'C overnight was added to 9ml of MRS Agar and the bacteria were incubated at 37~'C for 24 and 48 hrs. Discrete and single colony of lactobacillus was isolated using colony morphology and biochemical tests. The most significant viable taxa isolated was Lactobacillus fermentum at a pH range of (3.0-8.0), while the least viable taxa isolated was Leuconostoc mesenteroides ssp. Microscopically they were Grampositive, rod shaped, non- motile, catalase negative and absence of Endospore.
    Beschreibung: Includes: 2 tables and 2 plates.;Also includes: 15 references.
    Schlagwort(e): Aquaculture ; Nigeria ; Lagos ; Locust bean ; Probiotics ; Lactobacillus ; Probiotics ; freshwater environment ; Feed ; Additives ; Aquaculture ; Microorganisms ; Bacteria ; Disease resistance ; Fermented products ; Fish culture ; Shrimp culture
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 60-63
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  • 4
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23395 | 19325 | 2018-04-12 07:17:16 | 23395 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-14
    Beschreibung: Fifty samples of smoked fish were obtained from some markets in Lagos and these were analyzed for the presence of Staphylococcus aureus, Vibrio sp. and Listeria monocytogenes. All the samples tested positive for Staphylococcus aureus, 27 samples for Vibrio sp. and none for Listeria monocytogenes. This study reveals that the smoked fish sold in Lagos, could be a potential source of food borne bacterial pathogens and thus the need for improvement in processing and handling are required.
    Beschreibung: Includes:- 1 table.;17 refs.
    Schlagwort(e): Fisheries ; Health ; Nigeria ; Lagos ; freshwater environment ; Bacteria ; Pathogenic bacteria ; Cured products ; Processing fishery products
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 105-109
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  • 5
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    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23402 | 19325 | 2018-04-12 08:52:38 | 23402 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-14
    Beschreibung: The investigation of bacteria in grow-out catfish was carried out from February to June, 2008. 100 dead Clarias gariepinus were collected from ten ponds (A-J) distributed in Jos and its environs. Results from the various ponds showed that Escherichia coli were present in all the location found, while 87.0% of the total samples obtained were positive with bacteria isolates. The isolates were shown to include Aeromonas species (11.5%), Escherichia coli (35.6%), Pseudomonas aeruginosa (15.0%), Streptococcus faecalis (13.8%) and Klebsiella aerogenes (18.4%) of which pond F had 16.1 % of bacteria organisms while ponds B, G and H were both 9.2%, respectively.
    Beschreibung: Includes:- 4 tables.;9 refs.
    Schlagwort(e): Aquaculture ; Clarias gariepinus ; Nigeria ; Jos ; freshwater environment ; Bacteria ; Pathogenic bacteria ; Mortality
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 143-145
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  • 6
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    FISON | Badagry, Lagos, Nigeria
    In:  http://aquaticcommons.org/id/eprint/23413 | 19325 | 2018-04-09 17:32:43 | 23413 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-14
    Beschreibung: Pathogens in aquatic environment constitute health hazards to the aquatic lives (e.g. fish) and by extension man that drinks the water and also eat fish that is caught from such polluted aquatic environment. In this study, pelagic and benthic compartments of Kainji Lake were classified using types and loads of bacterial flora. Quantitative analysis of total heterotrophic count (THC) in pelagic samples showed that THC ranges from 2.0 x 101CFU/ml at Mataki to 3.6 x 106 CFU/ml at Musawa. Pelagic sample from Yauri market showed high bacterial count (3.5 x 106 CFU/ml). Total coliform count (TCC) at Yauri market and Musawa were also very high (3.0 x 104 CFU/ml and 2.1 x 105 CFU/ml respectively. Total heterotrophic count from benthic samples ranges from 4.2 x 102 CFU/g at Kasabo to 3.3 x 107 CFU/g at Yauri market and total coliform count ranges from 1.2 x 101 CFU/g at Garafini island to 3.3 x 103 CFU/g at Yauri market. Total coliform count from the benthic sample was generally lower than that from pelagic samples. Qualitative analysis revealed the presence of Salmonella typhi, Escherichia coli, Aeromonas hydrophila, Vibrio cholera from pelagic samples.
    Beschreibung: Includes:- 2 tables.;9 refs.
    Schlagwort(e): Biology ; Ecology ; Nigeria ; Kainji L. ; freshwater environment ; Benthos ; Pelagic fisheries ; Bacteria ; Microbiology
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-5
    Format: 701
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  • 7
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24224 | 19325 | 2018-05-19 07:11:26 | 24224 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: Jabi Lake is a natural water body in Abuja Federal Capital Territory (FCT). It was expanded for commercial fishing following relocation of Nigeria's headquarters to Abuja in 1993. Quantitative analysis of microbiological status of water and fish from the Lake was carried out. Samples were collected from the dam site, open water, middle lake and inlet. Result reveal that total coliform count which are indicators of pollution are high (2.0 x 103 cfu/ml, 1.1 x 103 cfu/ml, 1.0 x 103 cfu/ml and 1.1 x 103 cfu/ml for dam site, open water, middle lake, and inlet respectively). Total viable count too is high (9.2 x 103 cfu/ml, 4.9 x 103 cfu/ml, 4.6 x 103 cfu/ml and 4.9 x 103 cfu/ml for dam site, open water, middle lake and inlet respectively). There are no coliform bacteria in the muscle of the fish. High bacterial load is an indication of biological pollution and these calls for restraint on the side of those who are using the lake as site for refuse dump.
    Beschreibung: Includes: 10 references.
    Schlagwort(e): Fisheries ; Pollution ; Nigeria ; Jabi Lake ; Jabi lake ; Water ; Fish ; Bacteria ; freshwater environment ; Microbiology ; Fish ; Pollution ; Water pollution ; Lake fisheries ; Fishery surveys ; Bacteria ; Baseline studies ; Water sampling ; Microbial contamination ; Muscles ; Freshwater fish ; Pollution surveys ; Water analysis ; Freshwater pollution
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 284-286
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  • 8
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24185 | 19325 | 2018-05-16 14:41:02 | 24185 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: Bacteria has been implicated in food poisoning, and smoked fish is not an exception.Generally, fish is highly susceptible to spoilage; therefore this study evaluated the bacteria load in smoked fish from three major locations in Shiroro area of Niger State namely; Gwada, Kuta and Zumba.The smoked fish samples collected from these locations were smeared at both the gills and head regions of the fishes. The bacteria samples identified were Escherichia coli, Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermis, Pseudomonas aeruginosa, and Samonella typhi, which were common to all the three locations sampled, while only Streptococcus feacaliswas only was found to be present in both Kuta and Zumba location.The frequency of occurrence of these 68 bacteria samples isolated ranges from 8 - 20%, with Bacillius subtilis having the highest occurrence and Pseudomonas aeruginosa have the least occurrence. Out of the total 68 samples, 14 skin samples (20.6%) and 5 gills samples (7.4%) exceeded the acceptable limits of total mesophilic aerobic counts which were 10〈sup〉6〈/sup〉 - 10〈sup〉7〈/sup〉 cfu/g. In the case of total coliform counts, 12 skin samples (17.6%) and 7 gills samples (10.3%) exceeded the acceptable limit which is 4.0 x 102, while in the case of Staphylococcus aureus, 4 skin samples (5.9%) and 2 gills samples (2.9%) exceeded the acceptable limit which is 103 cfu/g. Similarly 3 skin samples (4.4%) and 1 gill sample (1.5%) exceeded the acceptable limit of Salmonella typhi which is 104 cfu/g.
    Beschreibung: Includes: 4 tables.;Also includes: 21 references.
    Schlagwort(e): Fisheries ; Health ; Escherichia coli ; Bacillus subtilis ; Staphylococcus aureus ; Staphylococcus epidermis ; Pseeudomonas aeruginosa ; Nigeria ; Shiroro L. ; Bacteria ; Smoked (Clarias spp) fish ; Location and recommended values ; brackishwater environment ; freshwater environment ; marine environment ; Bacteria ; Food poisoning ; Cured products ; Fish ; Fish spoilage ; Acceptability ; Lake fisheries ; Gills ; Brain ; Evaluation
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 140-144
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  • 9
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24222 | 19325 | 2018-05-19 07:06:04 | 24222 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: A total of 2,800 tilapia (Oreochromis niloticus) were stocked in seven duplicates 5 by 4 m2 earthen ponds in NIFFR Integrated Farm, New-Bussa, Niger-State. Raw and sterilized poultry manure of 0.13 to 0.52 kg/m3 concentrations were used to fertilize the ponds with the unfertilized ponds serving as control. The following bacteria were isolated from the cow dung manure; Escherichia coli, E. co1iOl57:H7, Aeromonas hydrophila,Salmonella typhi, Shigella dysenteriae and Staphylococcus aureus. The fish samples from the 0.13 and 0.26 kg/m3 sterilized manure fertilized ponds had zero count in the muscles while samples from other ponds had pathogens in their fish muscles. The study revealed that fish samples from sterilized manures were better in terms of microbial safety for fish productions hence sterilized manure are recommended for use in fish production to ensure the microbial safety of the fish, handlers and that of the consumers.
    Beschreibung: includes: 13 references.
    Schlagwort(e): Aquaculture ; Oreochromis niloticus ; Escherichia coli ; Aeromonas hydrophila ; Samonela typhi ; Shigella dysenteriae ; Staphylococcus aureus ; Nigeria ; Niger State ; Catfish ; Pathogens ; Microbial quality ; Raw and sterilized manue ; freshwater environment ; Bacteria ; Freshwater fish ; Fish culture ; Fish ponds ; Manure ; Microorganisms ; Freshwater aquaculture ; Aquaculture products ; Food fish ; Quality assurance ; Muscles ; Microbial contamination
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 278-280
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  • 10
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24229 | 19325 | 2018-05-19 07:20:47 | 24229 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: The objective of this study was to detect Listeria monocytogenes in frozen fish in Lagos, Nigeria. A total of 55 frozen fish from two markets (Iyana-Ipaja and Mushin) were analyzed for the presence of L. monocytogenes using Oxoid Listeria Precis method. Out of the 55 samples analyzed, only 15 were positive for L. monocytogenes. The study showed that L. monocytogenes is a contaminant of frozen fish and may pose serious health implications on consumption of the contaminated fish.
    Beschreibung: Includes: 20 references.
    Schlagwort(e): Fisheries ; Health ; Listeria monocytogenes ; Nigeria ; Lagos ; Listeria monocytogenes ; Frozen fish ; Oxoid Listeria Precis ; freshwater environment ; Frozen products ; Fish ; Public health ; Bacteria ; Samples ; Fishery products ; Microbial contamination ; Quality assurance
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 307-310
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  • 11
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    FISON | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/24596 | 19325 | 2018-05-20 16:13:09 | 24596 | Fisheries Society of Nigeria
    Publikationsdatum: 2021-07-15
    Beschreibung: Sixty apparently healthy Heterobranchus bidorsalis and Clarias anguillaris from NIFFR were cultured and 30 each from Monai and wara villages as wild environments were obtained for the studies. The total bacterial load varied from 2.2 x l05 to 1.08 x l08 and 2.27 x 105 to 6.3 x l08 CFU/g of the skin of C. anguillaris and H.bidorsalis in the culture respectively, while the load varied from 1.77 x 105 to 1.17 x l08 and 2.27 x 105 to 9.0 x l07 CFU/g in the wild respectively. Eleven bacterial general species were identified which include: Bacillus species B.firmus, Pseudomonas species, P. aeruginosa, Escherichia coli, Klebsiella aerogenes, K. ozaenae, Staphylococcus aureus, Streptococcus species, S.faecalis, and Aeromonas species. The aims of this investigation is to compare the type and the load of bacteria isolates on the skin of catfish in both culture and wild environment.
    Beschreibung: Includes: 7 references.
    Schlagwort(e): Aquaculture ; Fisheries ; Clarias anguillaris ; Heterobranchus bidorsalis ; Nigeria ; Kainji L. ; Comparative study ; Bacteria ; Skin ; Clarias ; Heterobranchus ; Kainji Lake ; freshwater environment ; automation
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 119-122
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  • 12
    Publikationsdatum: 2022-05-27
    Beschreibung: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gosselin, K. M., Nelson, R. K., Spivak, A. C., Sylva, S. P., Van Mooy, B. A. S., Aeppli, C., Sharpless, C. M., O’Neil, G. W., Arrington, E. C., Reddy, C. M., & Valentine, D. L. Production of two highly abundant 2-methyl-branched fatty acids by blooms of the globally significant marine cyanobacteria Trichodesmium erythraeum. ACS Omega, 6(35), (2021): 22803–22810, https://doi.org/10.1021/acsomega.1c03196.
    Beschreibung: The bloom-forming cyanobacteria Trichodesmium contribute up to 30% to the total fixed nitrogen in the global oceans and thereby drive substantial productivity. On an expedition in the Gulf of Mexico, we observed and sampled surface slicks, some of which included dense blooms of Trichodesmium erythraeum. These bloom samples contained abundant and atypical free fatty acids, identified here as 2-methyldecanoic acid and 2-methyldodecanoic acid. The high abundance and unusual branching pattern of these compounds suggest that they may play a specific role in this globally important organism.
    Beschreibung: This work was funded with grants from the National Science Foundation grants OCE-1333148, OCE-1333162, and OCE-1756254 and the Woods Hole Oceanographic Institution (IR&D). GCxGC analysis made possible by WHOI’s Investment in Science Fund.
    Schlagwort(e): Lipids ; Alkyls ; Bacteria ; Genetics ; Chromatography
    Repository-Name: Woods Hole Open Access Server
    Materialart: Article
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