Evaluating hybrid catfish egg quality
A significant correlation was established between ovarian fluid pH of stripped eggs and subsequent hatch of hybrid catfish eggs.
Consumers’ salmon perceptions relate to consumption frequency
Consumer perceptions regarding seafood influence consumers’ willingness to consider and purchase fish as a viable protein choice.
Arapaima a candidate for intensive freshwater culture
Arapaima, also known as pirarucu or paiche, offers appealing flesh color and texture, low fat content and high levels of protein and fatty acids.
Japanese eel aquaculture in Korea
After a decade of research, Korea has produced individual glass eels for Japanese eel aquaculture. Despite dependence upon the wild seed, Japanese eel aquaculture production has been growing significantly and comprises over 27 percent of Korea’s freshwater aquaculture.
Learning from tradition: Integrated aquaculture
Development of integrated aquaculture systems could assist in improving environmental quality and changing public perceptions of aquaculture.
Trial finds biomass harvest of cobia unaffected by stocking density in RAS
The establishment of land-based recirculating systems for cobia could expand production of the species. The authors, who demonstrated cobia are well suited for culture in tanks, conducted a study to compare the performance of cobia reared at different densities.
Shrimp hatchery production: myth vs. reality
The quality of postlarvae supplied by a shrimp hatchery can vary considerably. Common myths, such as acceptance of low survival and insufficient concern for water quality, can contribute to lower animal quality.
Soy products replace fishmeal in offshore cobia feed study
A project of the Soy-in-Aquaculture program evaluated the feasibility of using soy protein concentrate and soybean meal to replace fishmeal in cobia diets.
Tobacco dust: natural molluscicide for aquaculture applications
Research found that tobacco dust applied in culture water killed ramshorn snails within three days and did not compromise channel catfish.
Lobster farming in Indonesia
A multinational project in Lombok, Indonesia, is focused on the identification and monitoring of improved seed collection and grow-out production methods for spiny lobsters.
Practical feeds without fishmeal suitable for gilthead sea bream
In a study, the performance of gilthead sea bream juveniles fed diets with no fishmeal was compared to that of bream fed diets with 30 or 10 percent fishmeal.
Shrimp necrosis has infectious etiology
Researchers studied the nature of muscle necrosis in shrimp by sampling infected shrimp from local ponds and challenging healthy specimen with filtrates from the diseased shrimp.
Toxicity vs. detection
The 2001 detection of chloramphenicol in shrimp imported into the Netherlands heightened awareness of and anxiety over the presence of chemicals in food.
Aquaculture disease diagnosis is detective work
Those charged with determining the underlying cause of a disease outbreak have a wide variety of detective tools at their disposal.
Settling chambers remove suspended solids, but limit biofloc in shrimp system
Shrimp survival, weight, yield and feed conversion were better in farm units that operated with settling chambers for solids removal than in units without.
Recent developments in biofloc technology
Combining biofloc technology with bio-secure modular shrimp culture can make operations more sustainable and economically viable. For optimized biofloc production, lined ponds and reservoirs and high stocking densities are essential. Paddlewheel aerators keep dissolved-oxygen levels high.