Tag microalgae

Alabama-based startup is developing a conveyor belt system to culture microalgae in less space than raceways and with a more efficient collection system. 

Hatch Blue’s fourth cohort performed their pitches online for the first time, showcasing a spectrum of aquaculture product and service businesses. 

Study shows that microalgae assists the stability of small-scale RAS, and that microalgae can be used to manipulate the bacterial community. 

Microalgae – an important live feed in shrimp and fish hatcheries – can be produced in both open and closed systems, with the latter having some advantages. 

Results of this study demonstrated that a commercial, granular, SCP-based algaecide corresponding to 2.5 mg/L H2O2 can be recommended as an eco-friendly strategy to effectively remove populations of the cyanobacterium Planktothrix sp. without compromising water quality or other plankton communities.  

A greenhouse in Belgium believes its innovative shrimp feed product, made from freeze-dried microalgae, packs the necessary nutrients for the crustacean’s most vulnerable life stage: the first three days of its life. 

Green water, which describes the typical water color in tropical aquaculture facilities, consists mainly of various phytoplankton species along with bacteria, protozoa and zooplankton. It is relatively easy to produce without any supplemented nutrients. 

Like so many innovative solutions achieved in digital technology, a potential fix to aquaculture’s existential issue – the sustainability of feeds – was born in Silicon Valley. In a garage, no less. 

The diatom Thalassiosira weissflogii is important in the aquaculture industry to feed shrimp and shellfish larval stages in hatcheries. This study examined culture conditions for this diatom and determined that it can be successfully cultured semi-continuously and without population crashes. 

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. 

Innovation is leading to new ingredient options for renewable sources of omega-3 fatty acids. But Replicating long chain fatty acids is a tall order, Advocate contributor Lisa Duchene discovered. 

Muchos estanques acuícolas requieren aireación mecánica tanto para aumentar los niveles de oxígeno disuelto como para favorecer la mezcla de las aguas ricas y pobres en oxígeno, que también ayuda a prevenir el volteo. 

The control of temperature and light intensity in microalgae culture in outdoor tanks is difficult. Progress in algal biotechnology and the use of photo-bioreactors, metabolic engineering and other advances supported development of a novel underwater light bank reactor that allows for more effective light utilization by cultured microalgae. 

Promoting water circulation during the day time is an effective strategy to enrich pond water with oxygen produced by photosynthesis, and can significantly reduce the costs of night time supplemental aeration. 

A growth trial in Canada evaluated the use of algae biomass to increase the concentration of long-chain polyunsaturated fatty acids in the tissues of rainbow trout.