Aquaculture in Open Systems

Lawson, Thomas B.

doi:10.1007/978-1-4615-7047-9_5

Cited by 11 publications

(20 citation statements)

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“…Also, four species of surface macrophyte were identified as water flora providing hiding spots for the prawns around the study location. Boyd, 1990Lawson, 1995Marioghae, 1987Boyd, 1990Marioghae, 1987Boyd, 1990Boyd, 1990 Turker and Robinson, 1990 Boyd, 1990Piper et.al., 1982Swan, 1993 F.E.P.A., 1991…”

Section: Resultsmentioning

confidence: 99%

Aspects of Habitat Ecology of Macrobrachium vollenhovenii (Herklots, 1857) on the Lower Volta River, Ghana

Eniade,

Odedeyi,

Bello-Olusoji

et al. 2018

JBS

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Water quality parameters, river sediment texture, percentage abundance of species, fish and plants associated with the habitat of African giant prawn, M. vollenhovenii (Herklots, 1857) were studied at the Eastern Region of Ghana on Lower Volta River Basin Channel between June- 2015 and May- 2017. Analysis of the physico-chemical properties revealed a low level of seasonal fluctuations as obtained values for pH, salinity, temperature, ammonia and phosphates were not significantly different (p>0.05) based on seasonality. Results of this study revealed that most water quality parameters including heavy metals ions were within the thresholds recommended for surface water and fresh-water fish aquaculture except for K+, Ca2+, Cu2+, Zn2+ and Pb2+ ions. The river sediments’ texture was sandy loam with low organic matter percentage compositions and an average pH value range (4.96±1.33-5.33±0.95) which is weakly acidic. The water depths across the sampling locations ranged between 5.13±2.6fts and 15.80±4.92 fts and showed that the prawn is a sub-lithoral animal. Catch statistics revealed higher percentages of males at both seasons. Oreochromis niloticus, Parachana obscura and Atya gaboniensis were found foraging with M. vollenhovenii; while Eichhornia crassipes, Ipomoea aquatica, Diplazium sammatii and Leptochloa caerulescens were flora species providing hiding spots for M. vollenhovenii in this habitat. Conclusively, M. vollenhovenii population around this study location inhabits an exclusively fresh-water ecosystem which can be simulated for captive culture of this prawn. Aquaculture of this prawn is therefore recommended.

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Section: Resultsmentioning

confidence: 99%

Aspects of Habitat Ecology of Macrobrachium vollenhovenii (Herklots, 1857) on the Lower Volta River, Ghana

Eniade,

Odedeyi,

Bello-Olusoji

et al. 2018

JBS

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“…De plus, ces espèces peuvent survivre dans des eaux présentant des valeurs de pH allant de 5 à 11 (Billard et Marcel, 1980). Par ailleurs, les valeurs de pH comprises entre 6,5 et 9 sont conseillées pour l'élevage des poissons (Lawson, 1995 ;Tarazona et Munoz, 1995, Konan et al, 2017. Dans cette étude, les valeurs de l'oxygène dissous enregistrées dans les bacs pour la phase larvaire et celles des étangs pour les phases de prégrossissement et de grossissement, n'ont pas subi d'influence liée aux différents régimes alimentaires utilisés.…”

Section: Discussionunclassified

Influence de la substitution totale de la farine de poisson par celles de spiruline, d’asticot et de ver de terre dans l’alimentation du tilapia Oreochromis niloticus sur la qualité de l’eau d’élevage

Gbai,

Ouattara,

Ouattara

et al. 2024

Int. J. Bio. Chem. Sci

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Cette étude a été conduite en vue d’évaluer l’influence de la substitution totale de la farine de poisson par celles de Spiruline, d’asticot et de ver de terre sur la qualité du milieu d’élevage du tilapia Oreochromis niloticus en phases larvaire, prégrossissement et grossissement. Les paramètres physico-chimiques de l’eau des bacs en béton et des étangs ont été déterminés durant les trois phases d’élevage des poissons. Les températures de l’eau enregistrées variaient de 27,30 ± 0,80 à 29,40 ± 0,80°C. Quant aux pH relevés, les valeurs moyennes obtenues oscillaient entre 6,40 ± 0,08 et 7,20 ± 0, 02. Les concentrations en oxygène dissous se situaient entre 7,14 ± 0,32 et 9,43 ± 0,38 mg.L-1 . Les analyses statistiques de ces différentes valeurs ne montraient aucune différence significative (p > 0,05) au niveau de la température, du pH et de l’oxygène dissous. Durant les trois phases d’élevage, les teneurs en nitrites (NO2), en nitrates (NO3), en ammonium (NH4 + ), en phosphores (PO3-4) et la conductivité de l’eau d’élevage ont été déterminées. Il en ressort que, les paramètres physico-chimiques du milieu d’élevage n’ont pas été influencés par les types d’aliments utilisés. Les valeurs enregistrées dans cette étude pour ces paramètres étaient dans les limites recommandées pour l’élevage de cette espèce et permettent de dire que les eaux des bacs et des étangs expérimentaux étaient de bonne qualité pour la croissance et la survie des poissons English title: Influence of the total substitution of fish meal by that of spirulina, maggot and earthworm in feeding tilapia Oreochromis niloticus on the quality of rearing water This study was carried out in order to evaluate the influence of the total substitution of fish meal by that of Spirulina, maggot and earthworm on the quality of the water for breeding tilapia Oreochromis niloticus in larval, juvenile and adult phases. The physicochemical parameters of the water in the concrete tanks and ponds were determined during the three phases of fish rearing. The recorded water temperatures ranged from 27.30 ± 0.80 to 29.40 ± 0.80°C. As for the pH recorded, the average values obtained oscillated between 6.40 ± 0.08 and 7.20 ± 0.02. The dissolved oxygen concentrations were between 7.14 ± 0.32 and 9.43 ± 0.38 mg.L-1. Statistical analyzes of these different values showed no significant difference (p > 0.05) in temperature, pH and dissolved oxygen. During the three breeding phases, the contents of nitrites (NO2), nitrates (NO3), ammonium (NH4+), phosphorus (PO3-4) and the conductivity of the breeding water were determined. It appears that the physicochemical parameters of the rearing water were not influenced by the types of feed used. The values recorded in this study for these parameters were within the recommended limits for the breeding of this species and allowed us to say that the waters of the tanks and experimental ponds were of good quality for the growth and survival of the fish.

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“…The oxygen transfer coefficient is computed using the above graph at points representing 10% and 70% oxygen saturation (Lawson, T. B. 1995) [18] as follows ~ 320 ~…”

Section: Wooden Flat Surface Aerator Modelmentioning

confidence: 99%

Comparative study of fabricated conventional aerator models for enhancing oxygenation efficiency in Aquafarm

Mohan,

Badami

et al. 2024

Int. J. Res. Agron.

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Aquaculture in Open Systems

Cited by 11 publications

References 0 publications

Aspects of Habitat Ecology of Macrobrachium vollenhovenii (Herklots, 1857) on the Lower Volta River, Ghana

Aspects of Habitat Ecology of Macrobrachium vollenhovenii (Herklots, 1857) on the Lower Volta River, Ghana

Influence de la substitution totale de la farine de poisson par celles de spiruline, d’asticot et de ver de terre dans l’alimentation du tilapia Oreochromis niloticus sur la qualité de l’eau d’élevage

Comparative study of fabricated conventional aerator models for enhancing oxygenation efficiency in Aquafarm

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