Successful cryopreservation of Pacific oyster (Crassostrea gigas) oocytes

Survival Rates with Time Course of Frozen-thawed Pacific Oyster Larvae in Indoor Rearing System

“…Toledo et al (1989) reported the cryopreserving possibility on 2-to 8-cell stages and trochophore of development in blue mussel. Gwo (1995) (Usuki et al, 2002;Tervit et al, 2005). Since the seed production had been successfully researched, there was no report on cryopreservation during last 15 years.…”

Bell frog populations in New Zealand - good news or bad news?

“…To successfully develop these techniques harvesting of eggs and other tissues from many individuals would be necessary and this would be untenable in a declining population of endangered frogs. In New Zealand, cryopreservation of female gametes has only recently been successful and is largely limited to commercial aquaculture such as oysters (Tervit et al 2005). However, samples of bell frog tissues could be easily harvested in New Zealand and transported to Australia for the development of species-specific techniques for bioresource banking.…”

Advantages and Applications of Cryopreservation in Fisheries Science

“…Cryopreservation of aquatic sperm is relatively common in the breeding and management of fish species, including salmonid, cyprinids, silurids, and Acipenseridae (família) is well documented (Magyary et al 1996;Tsvetkova et al 1996). However, cryopreservation of embryos and oocytes of aquatic species have not been successful, except for eastern oyster eggs (Crassostrea virginica) (Tervit et al 2005), larvae of eastern oyster (Paniagua-Chavez and Tiersch 2001) and larvae of the sea urchin (Adams et al 2006). Cryopreservation technology applied to the preservation of fish gametes in aquaculture plays an important role in seed production, genetic management of broodstock and conservation of aquatic resources.…”