Understanding the hydrologic cycle, water’s unique physical properties and their behavior in aquaculture systems – phases, humidity, saturation, stratification, light reflection and refraction – is pertinent to properly manage water quality in production systems, according to world-renowned expert Dr. Claude Boyd.
Reservoirs cover about 3 million hectares of surface area in India, and are a growing resource with enormous potential for increasing their fisheries and extensive aquaculture yield, as well as a source of increased employment.
With entrenched positions on GM foods, it is difficult to change the conversation, but change it we must. A perpetually contentious climate doesn’t serve us well and we must abandon the current paradigm to define a new framework that facilitates more useful discussions.
The 18-month Maribe project has uncovered some promising ideas for promoting growth and jobs within the blue economy. Aquaculture, fingered as one of five key areas for growth, could benefit from collaboration with renewable energies.
Woodchip bioreactors can efficiently remove nitrate, phosphorus and total suspended solids from aquaculture wastewaters. Denitrification treatment of the relatively organic-rich aquaculture wastewater is a new and useful application to protect against water pollution.
Nitrogen and phosphorus are the most important nutrients in fertilization of both freshwater and coastal ponds. Many factors that can affect the response of ponds to fertilizers are location-specific. Aquaculture pond managers will have to figure out the best procedure for a given location or even for an individual pond.
Over the last decade, the experience gained by many tilapia farmers combined with proficient programs implemented by local governments have significantly improved tilapia production in various Latin American countries like Colombia, Mexico, Ecuador and other important tilapia producers in the region.
Chile’s farmed salmon industry has had a rough decade. A lot is riding on its ability to work through the turbulence, including 70,000 jobs and $3.5 billion in annual sales. Is reducing production the answer?
On the third and final day of the Global Aquaculture Alliance’s annual GOAL conference, held in Guangzhou, China, the theme of “healthy planet” permeated every presentation. Innovation, investment, efficiency, transparency and improvement are the clarion calls for aquaculture.
Seafood companies are not only striving to become sustainable and environmentally friendly; they are grappling with social responsibility issues that grab international headlines and rightfully force all links of the supply chain to button up their operations and put human rights above all else.
Total alkalinity is an important variable in water for aquaculture systems, and its concentration frequently fluctuates over time in many culture systems.
The red emperor snapper, known as “pouatte” in New Caledonia, is valuable throughout its broad geographic range and a highly valued food fish locally. Declining wild catches and market demand have provided the incentive to carry out technical feasibility studies to determine its commercial aquaculture potential.
Keep adequate concentrations of dissolved oxygen in the culture water by balancing stocking and feeding rates with the amount of mechanical aeration applied. To prevent anaerobic conditions at the sediment-water interface, aerators should be positioned to promote the flow of oxygenated water across the pond bottom.
In the first part of a series on genetically modified foods, independent advisor Scott Nichols discusses the simplistic decision behind product labels and the more complex question of what could and should be the outcomes of its use.
Global, sustainable mariculture production, developed on a massive, sustainable scale and using just a small fraction of the world’s oceanic areas, could eventually match the output of land-based agriculture production. Scale and international law considerations require the involvement of many stakeholders, including national governments and international organizations.
Food security is a priority in India, and there is huge potential for the expanded culture of non-native fish species. While many farmers have improved their socio-economic conditions through farming non-native fish species, their spread into open water resources presents a threat to biodiversity.