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Health & Welfare
Sex determination in Tasmanian Atlantic salmon
The maturation of Atlantic salmon prior to harvest is costly, so since male salmon are more likely to mature early, the salmon industry in Tasmania relies on all-female production.
Health & Welfare
The use of larger and deeper tanks can reduce building, labor and other aquaculture production costs. However, the ability to grade and transfer large numbers of fish is more challenging when using large tanks. In a comparison of the effectiveness of a purse seine and a hinged clamshell to crowd fish in large tanks, the latter was easier to control and less stressful to salmonids. With a slotted bar rack in a side panel of the clamshell crowder, fish were simultaneously graded in size.
Health & Welfare
The maturation of Atlantic salmon prior to harvest is costly, so since male salmon are more likely to mature early, the salmon industry in Tasmania relies on all-female production.
Intelligence
Salmon production has long been dominated by Norway, while the United States, Canada and United Kingdom have experienced slow expansion in recent years, and Chile saw a fall and rebound in volume. Norwegian product leads fresh salmon imports in European markets, but increases in price can shift sourcing to Ireland and the U.K.
Health & Welfare
Studies have identified changes in the quality parameters of farmed Atlantic salmon and wild salmon that reflect changes in the animals’ life cycles, diets and environments.
Health & Welfare
The USDA marine aquaculture center is addressing genetic improvement of North American Atlantic salmon to develop improved lines for producers.