The off-bottom growth is significantly faster than those that are grown on-bottom and their shell has a different character. We suggest you call to reserve spat orders no later than the Thursday prior to a Saturday event. Many Oyster Gardeners purchase spat several times a year in order to keep a good rotation of various size oysters on hand for harvesting. These oysters are spread on the tideland on firm substrate, placed in plastic mesh bags supported off the ground by lines, placed in various plastic mesh baskets off-bottom, or placed into trays. An estuary is a partly enclosed body of water where salt and freshwater meet and mix. We will have a regular supply of spat again starting in the Apr/May timeframe depending on water temperatures. The whole machine is made of heavy gauge aluminum so that it is light weight. After the combination of experience and research, we come up with the high efficient and low maintenance machine. Once the single seed has grown to ½” – ¾” size, they are planted out to our tidelands. Oyster sorting tumbler is mainly used to grade and tumbler your oysters. The cultchless seed is fed the same microalgae for 4-8 weeks before moving them to an upwell system in the bay, where they can then feed on natural algae. Some of our cultch seed is strung onto ropes that are supported off-bottom for accelerated growth where the substrate is soft or acidic. The shell with small oyster spat can then be scattered across the tideland for growth to maturity. The cultch seed is fed with tank-grown microalgae for 1-2 weeks before being moved to tidelands for 3-6 months of growth and hardening. Currently, Rock Point uses a remote setting facility to assist acquired oyster larvae in settling onto both shell in plastic mesh bags (cultch seed) and in trays (cultchless single oyster seed). These are now allowed to grow to maturity and sold as single oysters. Polishing off a dozen oysters takes minutes, which is startling considering it takes around three years for one plump Sydney Rock Oyster to fully mature and in that time these delicate morsels fend off multiple threats for survival. In years past, we sold tiny oysters that had naturally set on our gravel tideland as gravel seed. Single oyster seed is periodically available from our nursery. Bags of cultch oyster seed is available from our setting tanks or seasoned from one of our farms. Pacific oysters are set on whole oyster shell in bags or on micro-cultch shell as singles in our remote setting/nursery facility.
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