Grading Process Engineering within Tilapia (Oreochromis niloticus) Fish Ponds

2015 ◽  
pp. 11-22
Author(s):  
S. E. Abdallah ◽  
W. M. Elmessery
Keyword(s):  
Oreochromis Niloticus ◽  
Process Engineering ◽  
Fish Ponds

scholarly journals GRADING PROCESS ENGINEERING WITHIN TILAPIA (Oreochromis niloticus) FISH PONDS

2014 ◽  
Vol 31 (3) ◽  
pp. 959-982
Author(s):  
Said Elshahat Abdallah ◽  
Wael Mohamed Elmessery
Keyword(s):  
Oreochromis Niloticus ◽  
Process Engineering ◽  
Fish Ponds

scholarly journals Trichodina magna Van As and Basson, 1989 (Ciliophora: Peritrichia) from cultured Nile tilapia in the state of Santa Catarina, Brazil

2008 ◽  
Vol 68 (1) ◽  
pp. 169-172 ◽  
Author(s):  
ML. Martins ◽  
L. Ghiraldelli
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Original Description ◽  
The State ◽  
The Body ◽  
Fish Ponds ◽  
Santa Catarina ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Mean Diameter ◽  
The Mean

Specimens of Trichodina magna Van As and Bassson, 1989 (Ciliophora: Peritrichia) from the Nile tilapia Oreochromis niloticus collected from October 2004 to June 2005 in fish ponds situated in three regions of Santa Catarina State, Brazil are described here. Wet smears of skin and gills were prepared in the field, air dried, impregnated with Klein’s dry silver method and Giemsa’s solution. From a total of 146 examined fish, 36 were parasitized on the skin, 14 in the gills and 33 on the skin and gills, simultaneously. The mean diameter of the body of the specimens of T. magna was 84.3 ± 12.6 µm, adhesive disc 60.7 ± 10.0 µm, denticulate ring, 38.3 ± 7.4 µm, consisting of 26 (23 to 29) denticles. The only distinguishable difference from the original description was the fact that the ray of the denticle is anteriorly directed and does not extend over the y + 1 axis.

scholarly journals Eutrophization process in a system used for rearing the nile tilapia (Oreochromis niloticus), São Paulo State, Brazil

2013 ◽  
Vol 24 (4) ◽  
pp. 387-396 ◽  
Author(s):  
Jeniffer Sati Pereira ◽  
Cacilda Thais Janson Mercante ◽  
Julio Vicente Lombardi ◽  
André Martins Vaz-dos-Santos ◽  
Clóvis Ferreira do Carmo ◽  
...  
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Principal Component ◽  
Aquatic System ◽  
Fish Pond ◽  
Fish Ponds ◽  
Negative Effects ◽  
Nitrogen And Phosphorus ◽  
Nile Tilapia Oreochromis Niloticus

Aquaculture is composed of various themes of interest, particularly does eutrophization due to feeding have direct effects on fish ponds and the whole aquatic system. This study focused on the study of the water quality of an aquatic system related to Nile tilapia (Oreochromis niloticus) rearing. Sampling was done at six sites during one rearing cycle (six months), taking water from the source of water supply, the fish pond itself, the effluent of the fish pond and the mixed waters. A principal component analysis revealed that, among all the environmental variables analyzed, chlorophyll-a, total nitrogen and phosphorus and organic matter were responsible for the variations observed during the rearing cycle. Other sources of variability extrinsic to the fish pond make it evident that the assessment must take the entire aquatic system related to the rearing into consideration, minimizing negative effects.

scholarly journals Applications of Aquaponics on Pakcoy (Brassica Rapa L) and Nila Fish (Oreochromis Niloticus) to the Concentration of Ammonia, Nitrite, and Nitrate

2018 ◽  
Vol 34 (5) ◽  
pp. 2447-2455 ◽  
Author(s):  
Deswati Deswati ◽  
Niki Febriani ◽  
Hilfi Pardi ◽  
Yulizar Yusuf ◽  
Hamzar Suyani
Keyword(s):  
Water Sample ◽  
Brassica Rapa ◽  
Oreochromis Niloticus ◽  
Nitrate Concentration ◽  
Fish Farming ◽  
Ammonia Concentration ◽  
Nitrifying Bacteria ◽  
Fish Ponds ◽  
Freshwater Aquaculture ◽  
Standard Quality

To meet the consumption needs of fish and vegetables by utilizing a narrow urban land it can be used an aquaponic system. The aquaponic system is an integration of fish farming with hydroponic cultivation that utilizes the remains of feed and fish waste into nutrients for plants with the help of nitrifying bacteria. In this study used tilapia (Oreochromis niloticus) and Pakcoy (Brassica rapa L). Determination of ammonia, nitrite, and nitrate concentration aims to find the ammonia change to nitrite and nitrate in fish ponds, biofilter, and hydroponic sequences, and their absorption by plants. The ammonia concentration at three sampling points (3.231-8.989) mg/L and has exceeded the threshold of 0.02 mg/L, while for ammonia concentrations in each sample of pakcoy plant (558.563-2,001.659)mg/Kg. The concentration of nitrite (0.008-0.760)mg/L and has exceeded the standard quality threshold of 0.06 mg/L, except in the 0 day water sample sample 0.009 mg/ L and the water sample after the biofilter 0.008 mg/L, the concentration of nitrite pakcoy plant (3.764-12.321)mg/Kg. Nitrate concentration in water sample (1.046-2.275)mg/L, and still below the standard threshold of freshwater aquaculture (20-30)mg/L, nitrate concentration in pakcoy plant (4,890.09-12,864.7)mg/Kg. Ammonia and nitrite concentrations have exceeded the threshold, while nitrate concentrations are still below the threshold.

scholarly journals The Occurrence of Bacteria of the Genus <i>Aeromonas</i> spp. in <i>Oreochromis niloticus</i> (Tilapia) and in the Water of Amateur Sport Fish Ponds and Sensitiveness to Antimicrobials

2019 ◽  
Vol 10 (01) ◽  
pp. 81-97 ◽  
Author(s):  
Adriana Dos Santos Silva ◽  
Ludmilla Santana Soares E. Barros ◽  
Danuza Das Virgens Lima ◽  
Daniela Simões Velame
Keyword(s):  
Oreochromis Niloticus ◽  
Fish Ponds ◽  
Amateur Sport ◽  
Sport Fish
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