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The Impact of Costal Acidification to the Aquaculture Industry
The aquaculture industry is undergoing a significant change, and one that presents a tough challenge to overcome. In Canada, fisheries along the west coast have been losing millions of pounds worth of stock and revenue due to the rising acidity of the...
Effect of Florfenicol on White Shrimp
Florfenicol (FLR) is a commonly used antibiotic for the treatment of bacterial diseases in white shrimp Litopenaeus vannamei. In this study, Xianyun Ren, Luqing Pan and Lin Wang, Ocean University of China, evaluated the tissue distribution and elimination,...
Manipulation of Farmed Atlantic Salmon Swimming Behaviour to Reduce Sea Lice
This paper describes a study in which environmental manipulation of salmon swimming depth was tested in an attempt to reduce farm infection of Atlantic salmon, Salmo salar by the salmon louse, Lepeophtheirus salmonis, write B. Frenzl et al, University...
Are Chemicals used to Maintain Mussel Farm Wood Rafts Potentially Toxic to Mussels?
At the Galician coast, mussels are cultured on vertical ropes attached to floating rafts, which are cleaned in situ with tars or waterproof paints. The present study, by F. San Juan et al, University of Vigo, Spain, analyses the composition and the toxic...
Thermal Stunning Approach Works Best With Tilapia
In a study by Rachel Cristina Prehl Alves et al, Universidade de São Paulo, the authors evaluated the stunning effectiveness of thermonarcosis, carbon dioxide narcosis and electronarcosis by assessing the electrical brain activity of tilapia. Although...
Helping Salmon Cope with Stress of Transfer to Sea
Scientists are keen to sort farmed salmon and provide them with exercise right from the early stages of their growth, in order to equip them to deal with the stress of transfer to the sea....
High Survival Rate for Post-Smolt in Closed Facilties
Problems with lice and losses can be heavily reduced by placing farmed fish in closed systems until the fish reach a weight of one kilo. This has been shown by research conducted by scientists at Uni Research in Bergen, Norway....
Effects of Bamboo Charcoal Added Feed on Reduction of Ammonia and Growth of Pangasius
A 50-day feeding trial was conducted to determine the effects of dietary bamboo charcoal (BC) on ammonia (NH3-N) excretion and growth performances of Pangasius hypophthalmus, write M Sadiqul Islam et al, Bangladesh Agricultural University. ...
A Touch of Clay Helps Prevent Deadly Fish Disease
A type of clay used in cosmetics, medicine, and papermaking may be just what aquaculture farmers need to fight columnaris—a costly and deadly bacterial disease that affects freshwater finfish worldwide, writes Sandra Avant, USDA, ARS....
Economic Costs of Protistan and Metazoan Parasites to Global Mariculture
In this study, Andy Shinn et al, Fish Vet Group, Thailand, examine the world’s major marine and brackish water aquaculture production industries and provide estimates of the potential economic costs attributable to a range of key parasite pathogens...
Bath Vaccination of Rainbow Trout Against Flavobacterium Psychrophilum
Effective bath immunization systems may be very helpful to the salmon industry, particularly during the freshwater growth stages in which vaccination through injection is not possible, write Dr Juan Battaglia Aljaro, Velásquez S. and Ilardi P., Veterquímica...
Effects of Nitrite Exposure on Rabbitfish
Nitrite is toxic to fishes and is often encountered in recirculation aquaculture systems. Accordingly, the nitrite tolerance of potential aquaculture candidates needs to be assessed before the fish can be farmed in land-based recirculation systems. In...
Biosecurity in Aquaculture Part 2: National Considerations
This is the second of a series of three articles that focuses on biosecurity in aquaculture. The aim is to provide baseline information for the aquaculture community. In the first article, we focused on biosecurity at the international level. In this...
Effects of Feeding Fish Dried-Treated Sewage Sludge Part 1: Growth Performance, Feed Utilisation and Chemical Composition
A.M. Abdelhamid et al, Egypt, look at the possible effects of feeding Nile tilapia, silver carp, common carp and African catfish with dried treated sewage. Part one focuses on growth performance, feed utilisation and chemical composition....
New Aspect in Cartilage Growth “The Invasive Interstitial Type”
Growth of hyaline cartilage is achieved either by chondrocyte division “interstitial type of growth” or by perichondrial cell differentiation of mesenchymal cells to differentiated chondrocytes which deposit successive circumferential layers of cartilage...
 
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