News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.
Innovation & Investment

Estimating biofilter size for RAS systems

Controlling total ammonia-nitrogen (TAN) concentrations is the primary concern when sizing a biofilter for use in a recirculating aquaculture system. Sizing decisions are best based on previous experience with a given biofilter media in a specific biofilter configuration.

Innovation & Investment

Shrimp farming in China: Lessons from its developmental history

Fenneropenaeus chinensis was the most important farmed shrimp species in China until 1995. Lessons learned from its development made China a pioneer, especially in shrimp larval production. Shrimp farmers must enhance their understanding of the interactions of farming activities with 

Health & Welfare

Vibrio control in shrimp farming: Part 2

Strategies to control Vibrio bacteria at aquaculture farms must revolve around limiting inputs, including those from postlarvae suppliers, those that come in with the water, those that remain in the soil between crops and those in the feed and accumulated 

Health & Welfare

Vibrio control in shrimp farming: Part 1

Control of Vibrio bacteria should focus on minimizing overall bacterial loads and the potential for horizontal transmission. The challenge for hatchery managers is identifying gaps in biosecurity and plugging them without creating niches for other potential pathogens. 

Responsibility

Aquaponic system produces red drum, saltwater vegetable species

A project in Florida is studying the feasibility of a marine aquaponic system containing red drum and two native saltwater species. Water that exits the plant raceways is filtered and recirculated to the fish tanks. In tests, sea purslane grew 

Health & Welfare

LED lighting technology provides unique benefits for aquaculture

Environmental lighting, which synchronizes all stages of aquatic life, is an important consideration as more aquatic animals are produced indoors in highly controlled environments. Artificial lighting should deliver uniform light across the water’s surface in rearing tanks and mimic not 

Health & Welfare

Stalked barnacles hold aquaculture potential, but face bottlenecks

Interest in the aquaculture of stalked barnacles has risen in recent years as a response to increasing market demand and concern over the conservation of natural stocks. Is there enough knowledge, however, to establish the culture of stalked barnacles? 

Health & Welfare

Improving transportation of live hybrid striped bass

Anecdotal information has suggested that pond-reared hybrid striped bass are more vulnerable to transportation-related stressors than cage-reared fish. Study results suggested that accumulation of carbon dioxide and decreasing pH levels may contribute to this phenomenon. Agitation during simulated transport mitigated