They’re ‘everywhere’: The pervasiveness of microplastics
How has the plastic in aquaculture operations contributed to microplastic pollution? And is plastic pollution contaminating aquaculture products? The Advocate takes a closer look.
Effects of mechanical aeration on evaporation rate, water temperature
This study compared water temperature and water loss by evaporation in control ponds and in ponds aerated with surface aerators at four different aeration rates. Increased aeration rate increases the evaporation rate, which in turn lowers water temperature.
Climate change impacts unite U.S. shellfish farmers
The Shellfish Growers Climate Coalition, an initiative of seven founding U.S. aquaculture farmers, last week launched a partnership with The Nature Conservancy (TNC) to spread public awareness about climate change and its impact on their businesses.
Estimating global shrimp pond area
This article by Dr. Claude Boyd reports on global estimates for shrimp pond area in several countries. Because land use is an important indicator of the environment impact of an activity, better data on the shrimp pond area and the areas devoted to other types of aquaculture are needed.
At World Ocean Summit, Mexico asks: What do we want our oceans to be?
While talk of preservation and conservation dominated the annual event, a blunt query reminded all that the oceans need protection and sustainable development.
Revisiting ionic imbalance in low-salinity shrimp aquaculture
Ionic imbalance in low-salinity culture water may negatively influence shrimp survival and growth, and it is common to apply various mineral salts to low-salinity shrimp ponds.
Can ranching ‘zombie urchins’ boost uni, save kelp forests?
With Norwegian knowledge and a partnership with Mitsubishi, Urchinomics aims to turn worthless empty urchins into valuable seafood while restoring kelp forests and creating jobs.
Why water mixing and movement is key in aquaculture systems
Water mixing and movement distributes dissolved oxygen, fertilizers, liming and other products, as well as destratifies the water column in aquaculture systems.
What is biodiversity and its relevance to aquaculture certification?
Aquaculture certification programs reduce the environmental impacts of aquaculture and avoid negative impacts on biodiversity, but no single indicator of biodiversity can be used as a standard in aquaculture certification.
Stocking rate effects on growing juvenile sunshine bass
A dose-response study was conducted in an outdoor biofloc system to begin quantifying the stocking rate production function for sunshine bass advanced fingerlings.
Maine oyster farmer stares down climate change, learns to adapt
Bill Mook’s oyster farm is adapting to more frequent and intense rains, more acidic and warming seawater and other challenges that climate change brings.
Factors affecting efficiency of commercial fertilizers in aquaculture
Intensification of pond aquaculture involves the use of commercial fertilizers such as urea and triple superphosphate to stimulate phytoplankton blooms. There is no objective way of determining the ideal fertilization rate for an individual pond.
Properties of common commercial fertilizers in aquaculture
Commercial nitrogen and phosphorus fertilizers are widely used in aquaculture production systems to stimulate phytoplankton growth and the food web that provides natural food organisms beneficial to stocked fish fry and shrimp postlarvae.
Retrofitting shrimp farms to recirculating systems
Several large shrimp farms in Latin America, originally built to operate using significant, flow-through water exchange with the surrounding environment, have been retrofitted to a recirculating operation mode. This modification provides numerous benefits, including improved biosecurity.
Understanding water quality variables for aquaculture
Confusion can result because of differences in units (dimensions) used to report water quality variables, which can lead to faulty assessments. Professor Claude Boyd discusses issues related to units of measure for some common water quality values in aquaculture.
Reutilizando Maine: Instalaciones pesqueras envejeciendo encuentran nueva vida con la acuacultura
Algunos pescadores de langosta de Maine están recurriendo a la acuicultura en un intento por diversificar y dar a las libras de langosta una segunda oportunidad de producir mariscos locales.