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| SOUZA,GEOVANE A. DE; MORESCA,VICTOR O.; TEIXEIRA,GUSTAVO M.; JEREP,FERNANDO C.; AGUIAR,ALINE. |
| ABSTRACT Schyzocotyle acheilognathi is a tapeworm cestode commonly found in native freshwater fishes from Asia. This cestode has low host specificity and for that reason it has been registered parasitizing more than 200 cultured and wild fish species, besides amphibians, reptiles and birds from different regions of the world. With a high pathogenic potential, S. acheilognathi may cause mortalities in highly infected fish. In South America, Schyzocotyle was reported in Cyprinus carpio from a Brazilian fish farm at the municipality of Cornélio Procópio, northern Paraná State and from the natural environment in C. carpio from Neuquen River, Patagonia, Argentina. So far, there has been no report of this parasite in South American native fishes. Herein we... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cestoda; Bothricephalus; Fish farm; Helminthes; Introduced species; Parasite invasion. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602845 |
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| Marinho,R.G.B.; Tavares-Dias,M.; Dias-Grigório,M.K.R.; Neves,L.R.; Yoshioka,E.T.O.; Boijink,C.L.; Takemoto,R.M.. |
| The parasitofauna in the giant Amazon basin, pirarucu (Arapaima gigas Schinz, 1822) cultured in fish farms from the state of Amapá, in eastern Amazonia (Brazil) was investigated. Of the 100 examined fish, 90.0% were parasitized by Ichthyophthirius multifiliis (Ciliophora), Dawestrema cycloancistrium, Dawestrema cycloancistrioides (Monogenoidea) and Polyacanthorhynchus macrorhynchus (Acanthocephala), which had an aggregated distribution pattern. The highest infection rates were caused by I. multifiliis and the lowest by P. macrorhynchus. Infection rates were different for each fish farm, due to different water quality and management characteristics. A negative correlation was found between the intensity of monogenoideans D. cycloancistrium and D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Fish farm; Freshwater fish; Parasites; Sanity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400035 |
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| Merceron, Michel; Bentley, Daniel; Le Grand, Jacqueline; Lamort-datin, Laure; Kempf, Marc. |
| The environmental impact of a brown trout farm located in the Grande Rade de Cherbourg (Normandy) is reported. During observations the fish stock evolved within the range of 140 to 350 metric tons. Farm influence was researched on water column through hydrochemistry, phytoplankton, faecal bacteria and, on bottom, through grain size, organic matter, metals, macrobenthos. This report only deals with water column. Except ammonia, no hydrological parameter seems to be affected, even near to the net pens. Phytoplankton and coliform bacteria were not altered. An extra concentration of ammonia was detected at some tens meters from the raft, with favourable conditions. But generally it was impossible to observe it unless close to the farming structure, downward... |
| Tipo: Text |
Palavras-chave: Channel; Current; Faecal bacteria; Phytoplankton; Hydrology; Impact; Salmonid; Fish farm; Manche; Courant; Bactéries fécales; Phytoplancton; Hydrologie; Impact; Salmonidé; Aquaculture. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/rapport-3342.pdf |
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| Garidou, Cécile. |
| INTRODUCTION: Norway Lobster fisheries in the Celtic Sea are mostly located in the Vllg and Vllh subdivisions. The communal regulation applying to Norway Lobster mesh size has been in effect since 1978. The use of derogative mesh size to catch Norway Lobsters is only allowed if the percentage of species protected by marketable size caught at the same time as Norway Lobsters is inferior to a fixed threshold in relation to the mesh size in effect. This regulation has been applied according to a specific schedule. With a percentage of protected species higher than 60 %, catching is considered as geared towards fish and mesh size is what the global regulation requires, i.e. 80 mm. As a matter of fact, as it has been mentioned many times, under the pressure of... |
| Tipo: Text |
Palavras-chave: Mass balances; Quantification of discards; Dicentrarchus labrax l; Catfish; Fish farm. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/rapport-1752.pdf |
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| Elsersy, N.A.; Abo-Ella, G.M.; El-Shenawy, M.; Abdel-Mawla, E.. |
| El-Max fish farm is one of the most important natural fish farm in Alexandria which is suffering from die-off of large amounts of fish. Facing this problem we must deal with the estimation of the quality of the farm raring unit environment (ponds). Analysis of samples using the Bray - Curtis similarity coefficient test yielded that, the input and El-Khandac were similar at (97%), while the eight ponds were classified at different level of similarity as follows: pond1 (B1) and pond7 (B7) were similar at (86%), B2 and B3 were similar at (90%), B14, B10 and B9 were similar at (93%), where as B11 is singly separated at (83%). Moreover, results indicate that distribution of the different bacterial groups was affected with one or more chemical parameters such as... |
| Tipo: Journal Contribution |
Palavras-chave: Vibriosis; Fish farm; E. coli; Streptococcus faecalis Microbiological analysis Microbiology Fish farms Microbiological analysis Microbiology http://aims.fao.org/aos/agrovoc/c_25302 http://aims.fao.org/aos/agrovoc/c_4800. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1262 |
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| Costa,Jesaias Ismael da; Sabbag,Omar Jorge; Ayroza,Luiz Marques da Silva; Martins,Maria Inez Espagnoli Geraldo. |
| ABSTRACT This study aimed to determine production cycles based on the stocking period and the influence of the cycles on productive performance indices, production costs, and profitability. The present study was carried out on a fish farm located in Palmital - SP, Brazil, which consists of 2706 m3 of net cages with an annual production of 400 tons of tilapia and regular harvests throughout the year. Production data, investment and expenditures were obtained by using a semi-structured questionnaire to calculate the total operational costs and profit indices. All monetary values of invested items have been corrected by the General Price Index (GPI) for December 2014. Three rearing phases were identified and characterized as the nursery, pre-finishing, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish farm; Production costs; Profitability; Temperature. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700553 |
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