Flat oyster (Ostrea angasi) growth and survival rates at Georges Bay, Tasmania (Australia)

Oxygen isotope records of the Australian flat oyster (Ostrea angasi) as a potential temperature archive

“…Calculated growth rates for the experiment period average 1.3 mm/month (1σ = 0.1 mm/month) for the shells sampled, 1.1 mm/month (1σ = 0.5 mm/month) for all shells at Little Swanport) and provide no indication as to whether the oysters may have stopped growing or varied their growth rate at certain times during the experiment. Previous studies of O. angasi in Tasmanian waters have found growth rates to be higher during the summer months, with little to no growth during winter (Dix, 1980;Mitchell et al, 2000). The Little Swanport oysters exhibit slower growth rates than those from Pambula Lake.…”

“…A single study reports that growth of O. angasi in Tasmanian waters slowed significantly over the colder austral autumn and winter months (MaySeptember) (Mitchell et al, 2000). The preferred salinity range of O. angasi is 26-36 (Nell & Livanos, unpublished data, in Nell and Gibbs, 1986; reported as 25-35 g l −1 ), though the oyster can tolerate salinities of 21-46 (Nell and Gibbs, 1986; reported as 20-45 g l −1 ).…”

The effects of environmental factors on survival, growth and biochemical composition of transplanted oysters (OstreaedulisLinnaeus, 1758) from Aegean Sea to southern Black Sea

“…Castillo-Dur an, Ch avez-Villalba, Arreola-Liz arraga and Barraza-Guardado (2010) found that cumulative mortality during summer reached 14.00% among juvenile Crassostrea gigas and 5.30% among juvenile Crassostrea corteziensis. Mortality rates of Ostrea angasi were variable between sites and sizes (shell length ranged from 7.00 to 28.00 mm) with percentage mortality ranging from 6.43 to 22.95% in Australia (Mitchell, Crawford & Rushton 2000). Acarlı et al (2011) declared that mortality rates of O. edulis were 40.00% for 15-mm length and 87.20% for 35-mm length in Aegean Sea, Turkey.…”

Unprecedented Restoration of a Native Oyster Metapopulation

“…The largest documented populations o f native oyster species comprise 24 million flat oyster Ostrea anagasi in Tasmania (Mitchell et al 2000) and 100 million European flat oyster Ostrea edulis in the Mediterranean (Airoldi and Beck 2007). For all other native oyster species, there is little data but their populations are much smaller than the Great Wicomico River population (Rothschild et al 1994, Kirby 2004, Ruesink et al 2005, Lotze et al 2006).…”