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  • Processing fishery products  (14)
  • 550 - Earth sciences
  • Chemistry
  • Iran
  • ddc:330
  • Fisheries Society of Nigeria  (23)
  • 2020-2022  (23)
  • 1
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    Analysis of physicochemical characteristics of some freshwater bodies in Essien Udim Local Government Area of Akwa Ibom State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23044 | 19325 | 2018-03-05 20:45:24 | 23044 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-12
    Beschreibung: The physical and chemical characteristics of freshwater bodies Ikot Ebak and Abeneyentem streams in Essien Udim Local Government Area, Akwa Ibom State, Nigeria were studied from (July December 1996). The mean values obtained in the two water bodies were pH (6.8~c0.12, 6.8~c0.09, respectively). Conductivity (4.9~c2.26, 5.0~c2.09 iScm-1), total dissolved solid (16~c7.58, 37~c26.9 mg/l), TSS (46~c26.0, 53~c53.1)g/l), alkalinity (17.5~c7.27, 10.7~c8S MgCaCo3/1), DO (6.98~C1.46, 8.3~C29.0mg/1), BOD (2.65~c2.44, 3.15~c2.79mg/1), Salinity (0.41~c0.12, 0.31~c0.04%o') total hardness (0.64~c0.21, 0.84~c0.42mg/l, N03-N (0.31~cO.26, 0.35~c0.29mg/l), and PD4-P (0.022~c0.0199 0.023~c.022mg/1), respectively. There were significant difference in the means of the parameters in the two water bodies except TDS, Alkalinity and Hardness. The water bodies were found to be slightly acidic with low conductivity. The properties in the water bodies were in conformity with international standards for both drinking and aquatic life.
    Beschreibung: includes:- 2 tables.;6 refs.
    Schlagwort(e): Chemistry ; Limnology ; Nigeria ; Ikot Ebak ; Nigeria ; Abeneyentem ; freshwater environment ; Physicochemical properties ; Alkalinity ; Salinity ; Dissolved oxygen
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 310 - 312
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    ARTIKEL (OA)
  • 2
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    Effect of cold and hot smoking of Clarias gariepinus on consumer preference (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23062 | 19325 | 2018-03-10 14:32:20 | 23062 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-12
    Beschreibung: The objective of this study was to determine the best smoking method that will enhance consumer preference for Clarias gariepinus without affecting negatively the nutritive value. Two methods of smoking were used: cold and hot smoking. The fish were smoked with improvised drum smoking kiln and oven. Smoked fish samples obtained were subjected to chemical analyses and sensory evaluation. Chemical analyses showed that the smoked fish were still rich in protein (66.0067.52%) and fat (9.83-12.28%); while the moisture content ranged between 7.82-8.24% and ash, 12.86-14.16%. There was no significant difference (P〉0.05) in the protein, ash and moisture contents. Significant differences (P〈0.05) were observed in the Calcium(Ca), Potassium(K), Sodium(Na), Zinc(Zn), Lead(Pb), Iron(Fe) and Phosphorus(P) contents. Only hot smoke-dried (HSD) fish samples showed no presence of lead. The levels of sodium(Na) and potassium(K) in the smoked fish were relatively high, though, the amount of potassium(k) was higher. Sensory evaluation results revealed that there were no significant differences (P〉0.05) in the colour and taste ratings of the smoked fish samples. However, significant differences (P〈0.05) were observed in the odour, texture and overall acceptability. Hot smoke-dried and cold oven-dried Clarias gariepinus had the best overall acceptability in ratings.
    Beschreibung: Includes:- 1 table.;2 figs.;12 refs.
    Schlagwort(e): Fisheries ; Clarias gariepinus ; Nigeria ; freshwater environment ; Fishery products ; Processing fishery products ; Cured products ; Curing ; Mineral composition
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 389 - 393
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  • 3
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    The impact of meteorological parameters on fish weight loss in the Kainji Solar Tent Dryer (2021)
    Fisheries Society of Nigeria | Kaduna (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23285 | 19325 | 2018-03-28 16:10:49 | 23285 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-13
    Beschreibung: Metrological parameters and their impacts on weight loss of fish inside Kainji Solar Tent Dryer were experimentally investigated. Drying experiments were conducted in solar dryer across the five agro ecological zones of Nigeria. During the drying experiments, the parameters such as temperature, relative humidity were lowest. The study showed that meteorological parameters were the primary determinants for fish drying within the Kainji Solar Tent Dryer, since weight loss during the experiment followed the pattern of these parameters
    Beschreibung: Includes:- 2 tables.;2 figs.;5 refs.
    Schlagwort(e): Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Processing fishery products ; Drying ; Solar power
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 22-25
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  • 4
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    Comparative analysis of physicochemical characteristics of ABU and Zaria Dam (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23440 | 19325 | 2018-05-02 08:25:12 | 23440 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: The physical and chemical parameters of ABU Dam and Zaria Dam were carried out between September and October 2009. The results obtained in the two water bodies were temperature 27.7 0C, pH (7.5 and 7.3), dissolved oxygen (5.8 mg/l and 5.0 mg/l), biochemical oxygen demand (1.74 mg/l and 2. 16 mg/l), alkalinity (58 mg CaC03/l and 49 mgCaCO3/l) P04-P (2.47 mg/l and 1.59 mg/l) NO3-N (3.67 mg/l and 3.47 mg/l), conductivity (54.70 ~ks-1 and 42.48 ~ks-1), total hydrocarbon (TH) (47.66 mg/l) and 48.00 mg/l) and total dissolved solids (32.68 mg/l and 25.35 mg/l) respectively. There was no significant difference in the mean values of the parameters (P〉0.05) except conductivity and total dissolved solids. The water bodies were found to be neutral with high conductivity. All the properties in the water bodies were in conformity with international standards both for drinking and aquatic life.
    Beschreibung: Includes:- 2 tables.;7 refs.
    Schlagwort(e): Chemistry ; Limnology ; Pollution ; Nigeria ; Zaria Dam ; Nigeria ; ABU Dam ; freshwater environment ; Physicochemical properties ; Pollution
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 144-146
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  • 5
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    Relationship among Tilapia guineensis fingerlings abundance and water quality variations in a brackish water reservoir in Lagos (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23442 | 19325 | 2018-05-02 08:28:15 | 23442 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: In recent times there has been an upsurge in the culture of Tilapia in Nigeria resulting in increased demand for the fingerlings which is hardly satisfied. This is due to increasing demand for table size tilapia as food fish and under-sized tilapia in the fish meal and fish canning industries in Nigeria. Collection of Tilapia guineensis fingerlings from the wild, to augment hatchery production, has been the practice and this is subject to environmental fluctuations. Multivariate regression and correlation analyses of accumulated data were used to investigate the effects of changes in water quality parameters on abundance of fingerlings of Tilapia guineensis in a brackishwater habitat in Lagos. Dissolved oxygen (DO), salinity and secchi transparency were found to be the most dominant factors affecting the abundance of Tilapia guineensis fingerlings in the Lagos lagoon. Peak period of abundance was closely associated with period of low salinity (0.50%o to 5.60%o), which coincided with the period of low transparency and low DO in the rainy season. The correlation analyses of Tilapia guineensis fingerlings with the water quality parameters yielded the following correlation coefficients (r)- 0.598; (salinity); -0.644 (transparency); -0.710 (DO); -0.566; (temperature) and 0.129 (pH). The abundance of Tilapia guineensis fingerlings in the Lagoon was ultimately defined by a suitable regression equation. This result is expected to optimize the collection of fingerlings of Tilapia guineensis from the wild and boost food fish security in Nigeria and elsewhere.
    Beschreibung: Includes:- 1 table.;1 fig.;( refs.
    Schlagwort(e): Chemistry ; Fisheries ; Tilapia guineensis ; Nigeria ; Port Harcourt ; brackishwater environment ; Water quality ; Fingerlings ; Chemical properties ; Physicochemical properties
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 153-157
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  • 6
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    Spatial and temporal variations of physicochemical variables in a small 'pristine' stream in Niger Delta, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23445 | 19325 | 2018-05-02 08:32:33 | 23445 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: Spatial and temporal variations of physico-chemical variables of Onu-Iyi ?Ukwu stream were studied for 12 months from March 2005 to February 2006. Three sampling stations were established along the main stream channel from source to mouth. Spatial variation in physico-chemical parameters indicated that total alkalinity, total hardness, conductivity, and nitrate-nitrogen (NO3) recorded their highest values at the upper reaches (with values 14.0mg/l, 88.09mg/l, 17.00~kscmiscm, and 0.60mg/l respectively). Dissolved Oxygen (DO) and pH had their maximum values of 8.20mg/l and 6.94 at the middle reaches. Turbidity, biochemical oxygen demand (BOD), temperature and phosphate-phosphorus (PO4) increased steadily from source to mouth. The observed seasonal variation indicated that wet season values were higher for all the parameters except temperature, turbidity, phosphate-phosphorus (PO4) and total alkalinity although the values were not statistically significant at p〉0.05. The correlation coefficient (r) showed no significant relationships p〈0.05 between physico-chemical parameters except DO and BOD with correlation values of (0.75 and -0.54) respectively.
    Beschreibung: includes:- 2 tables.;1 fig.;17 refs.
    Schlagwort(e): Chemistry ; Limnology ; Nigeria ; Onu-Iyi-Uku Stream ; freshwater environment ; Physicochemical properties ; Phosphates ; Phosphorus ; Turbidity
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 174-180
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  • 7
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    Limnological studies of Bosso dam and it's tributaries in Minna, Niger State, Nigeria (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23449 | 19325 | 2018-05-02 08:39:20 | 23449 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: The physico-chemical parameters of Bosso Dam were analyzed weekly for a period of six (6) weeks from 29th October, 2009. In all, six (6) stations were identified within the dam. The physico-chemical parameters assessed were: temperature, dissolved oxygen, pH, alkalinity, hardness, conductivity and transparency. The results obtained from the analysis revealed slight variations in most parameters. There was no significant difference p〉0.05 in pH regardless of stations and weeks. But significant difference p〉0.05 were observed in dissolved oxygen, nitrate, temperature, conductivity, hardness, alkalinity, biological oxygen demand, transparency, in respect regard to stations. These variations could be due to influx of organic waste from surface run offs and inorganic waste deposited by man. The physico-chemical parameters observed, indicated that most of them fall with the recommended range or standard by the Federal Ministry of Environment
    Beschreibung: Includes:- 2 tables.;10 figs.;18 refs.
    Schlagwort(e): Chemistry ; Limnology ; Nigeria ; Bosso dam ; freshwater environment ; Physicochemical properties ; Chemical properties ; Physical properties ; Water properties
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 196-214
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  • 8
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    Effect of smoking duration on the microbiological quality of cold-smoked Atlantic cod, Gadus morhua (Linnaeus, 1758) (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23491 | 19325 | 2018-05-06 13:02:08 | 23491 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: This study evaluated the effect of varying smoking durations of 6, 6.5, 7 and 7.5 hours on the microbiological quality and percentage moisture content of cold-smoked Atlantic Cod, Gadus morhua. The fish sample were cold-smoked using the traditional drum oven. Four batches of the smoked fish were stored in metal baskets at ambient temperatures for a period of 12 days and assessed for Staphylococcus aureus and Escherichia coli loads, Mould count, Total Plate Count and Total Coliform Count. Analyses of the smoked fish samples were carried out at the initial stage (day 0) and subsequently every alternate days (i.e. days 2, 4, 6, 8, 10 and 12). Significant variations (P 〈 0.05) were obtained for all the microbial counts on the four smoked fish samples. The best microbiologically stable cold-smoked samples were that smoked at the longest duration of 7.5 hours. This produced the least mean microbial load range of TPC (1.50 x 103 - 2.00 x 105cfu/g); TCC varied from 0.0MPN/g to 12.0 MPN/g ; Mould count (1.32 x103 - 2.55 x 105 cfu/g) and Staphylococcus aureus (3.0 x103 - 1.35 x 105cfu/g) while percentage moisture content ranged between 25.3% to 15.2%. All the samples tested negative to Escherichia coli.
    Beschreibung: Includes:- 2 tables.;15 refs.
    Schlagwort(e): Fisheries ; Gadus morhua ; Nigeria ; Ogun State ; marine environment ; Microbial contamination ; Curing ; Processing fishery products
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 459-464
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  • 9
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    Gender and fisheries of Lake Kainji, Nigeria: a review (2021)
    Fisheries Society of Nigeria | Lagos (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23515 | 19325 | 2018-05-08 15:42:14 | 23515 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-14
    Beschreibung: The paper examined gender and fisheries of Lake Kainji, Nigeria. The study highlights socio economic characteristics of women involved in Kainji Lake fisheries, important issues about gender and fisheries. It reveals that the categories of women in the Kainji Lake fisheries are in the middle age of 31 to 40 years with very low educational background. It also indicates that fish processing has been the most prominent activity of women in fisheries of Lake Kainji and constitute about 60 percent of the women. The study concludes that women play significant roles in all aspects of fisheries in Lake Kainji. Importantly, women’s roles span reproduction and production.
    Beschreibung: Includes:- 1 table;! fig.;13 refs.
    Schlagwort(e): Fisheries ; Nigeria ; Kainji L. ; freshwater environment ; Women ; Fisheries ; Processing fishery products
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 590-595
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  • 10
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    Assessment of water quality in Kigera Fish Farm, New Bussa (2021)
    Fisheries Society of Nigeria | Lagos
    In:  http://aquaticcommons.org/id/eprint/23017 | 19325 | 2018-03-05 09:26:57 | 23017 | Fisheries Society of Nigeria
    Details
    Publikationsdatum: 2021-07-12
    Beschreibung: The physico-chemical and biological characteristics and nutrient concentration of Kigera Fish Farm ponds were monitored for two months to assess the water quality. The parameters measured were dissolved oxygen, temperature, hydrogen ion concentration, Secchi-disc transparency and zooplankton composition. Some fish species were identified in the course of study. Temperature ranged from 26 -30degreesC; dissolved oxygen ranged from 3mg/l-6.6mg/l, pH ranged 7.0 -7.2; while Secchi-disc transparency ranged from 0.19 - 0.25m. The three ponds were quite similar in these parameters. All the parameters that were investigated in this study are within the tolerable level for warm water fishes. Five different zooplankton species were identified at the Kigera Fish Farm, and were grouped according to their major categories namely: Copepods, Cyclopoids and Copepodite), Cladoceran (〈i〉Moina〈/i〉), and Rotifera (〈i〉Asplanchina〈/i〉). 〈i〉Branchionus〈/i〉 species in the Rotifers group dominated the zooplankton species in all the three ponds.
    Beschreibung: includes:- 5 tables.;7 refs.
    Schlagwort(e): Aquaculture ; Chemistry ; Nigeria ; Kigaria Dam ; freshwater environment ; Water quality ; Physicochemical properties ; Zooplankton
    Repository-Name: AquaDocs
    Materialart: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 199 - 205
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