Responsibility
The promise of In-Pond Raceway Systems, part 2
In-Pond Raceway System technology, developed at Auburn University, continues to evolve with improvements in design, construction and more efficient operation.
Health & Welfare
Comparing biofloc, clear-water and hybrid RAS systems as tilapia nurseries
This study examined differences in fish performance and water quality dynamics between biofloc, clear water and hybrid systems as nurseries for tilapia.
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 the carbon dioxide accumulation and stabilized pH, but shifted the total ammonia nitrogen equilibrium in favor of un-ionized ammonia nitrogen.Ultimately, the agitators did not substantially attenuate the stress responses observed in the fish.
Health & Welfare
Selective breeding advances hybrid abalone
Collaborative work at Great Southern Waters has established a closed, genetically diverse breeding population of hybrid abalone. The breeding strategy is to produce and improve commercial stocks with the required hybrid traits by understanding the inheritance of those traits in the pure species and the hybrids.
Health & Welfare
Shrimp hybrids outperform parents in Brazil studies
In Brazil, shrimp hybrids – crosses of imported specific pathogen-free lines and a genetically improved and locally adapted line – outperform their parents.