Responsibility
Juvenile blue crabs prefered floats containing three-dimensional structure provided by oysters and shells, which helped provide refuge from predators.
Health & Welfare
A whole genome sequence allows the identification of candidate genes responsible for production and performance traits for a given species. Ongoing genome projects include programs for Atlantic salmon, Atlantic cod, Pacific oysters, tilapia, catfish and shrimp.
Health & Welfare
The levels of harmful Vibrio bacteria – a pathogen that multiplies at higher temperatures – in raw oysters depend largely on post-harvest handling.
Health & Welfare
Various techniques have been proposed to reduce Vibrio bacteria in live and processed oysters. In studies, X-ray treatments successfully reduced Vibrio populations.
Health & Welfare
In recent decades, mass summer mortality in oyster aquaculture has become widespread, with 50 percent of crops lost in a given year. Losses are often associated with spawning, which is normally seasonal but highly temperature-dependent.
Intelligence
Most of the shellfish industry in Portugal is located on the country’s southern coast, where the production is dominated by the grooved carpet shell clam, followed by Japanese and Portuguese cupped oysters, and mussels.
Intelligence
A project between an oyster hatchery and a university is working on a selective-breeding program for silver- or gold-lip pearl oysters in Indonesia.
Health & Welfare
The growing Pacific oyster culture industry in Australia is supported by cooperative research on genetic improvement and broodstock distribution.
Intelligence
A U.S. study found that high-pressure processing reduced Vibrio vulnificus levels in oysters and can help extend their shelf life.
Health & Welfare
The health of two key oyster species – the American and Pacific – is constantly under threat of parasitic infections leading to diseases MSX and dermo.