Search Results

Carbon dioxide is both a nutrient and a waste product in aquaculture. Some pond managers feel that application of organic matter to provide additional carbon dioxide can reduce pH and control blue-green algae. 

Although 16.6 million metric tons of carbon are annually buried in aquaculture ponds, estimated carbon emissions for culture species have approached several metric tons of carbon per metric ton of aquaculture product. 

Macroalgae aquaculture has benefits but improvements are needed in monitoring, reporting, verification standards and carbon uptake assessments. 

A carbon footprint is an estimate of the total carbon emissions resulting from the production, use and disposal of a product or service. Carbon footprints for aquaculture products result mainly from the use of manufactured feed and mechanical aeration. 

Changes in atmospheric carbon dioxide concentration should have little effect on rising alkalinity concentration in aquaculture systems. Climate change is of greater concern in freshwater aquaculture than is an increase in alkalinity. 

Enhanced sulfide burial seen as a scalable, cost-effective pathway to mitigate the carbon footprint of fish farming and a tool for climate solutions. 

Researchers suggest seagrass and mangrove restoration could also remove carbon through a novel pathway while combating ocean acidification. 

To quantify the carbon dioxide and methane fluxes in tropical earthen ponds, the authors used freshwater prawn farming managed according to different strategies as a model. 

Acid rain typically does not heavily affect aquaculture operations, and application of agricultural limestone can buffer water against the impacts of acid rain at facilities that use stream water. 

Study results can enhance the ecological value of the marine aquaculture carbon sink and create a “decarbonization space” for sustainable development. 

Sodium bicarbonate is a useful chemical in recirculating aquaculture systems and fish transport tanks. However, two common uses of the compound in pond culture – to remove carbon dioxide and treat off-flavors – do not work. 

For aquaculture managers, it is important to control carbon type and carbon-nitrogen ratio by feed formulation, solids removal or addition of organic carbon. 

Although carbon dioxide is not highly toxic, high levels in the blood have many negative physiological consequences. As carbon dioxide increases, higher dissolved oxygen tension is necessary to load hemoglobin with oxygen. 

Emphasize effective, implementable actions against ocean acidification, linking seaweed physiological changes with production costs and profits. 

Natural waters uninfluenced by high biological activity seldom have pH above 8.5, but in fish or shrimp culture, pond pH levels can rise to 9 or higher. 

The aquaculture value chain can significantly reduce carbon emissions with innovations in feed, transportation and operations. 

In studies, high dissolved carbon dioxide concentrations in culture tank water induced rainbow trout to swim to an area with lower concentrations. 

One way to jump start biofilter operation is by adding sugar, which can provide sufficient organic carbon to neutralize the ammonia-nitrogen produced.