1/17/2023 0 Comments Oyster spat collection![]() ![]() ![]() For Pinctada Margaritifera oysters in French Polynesia this time period usually ranges between 12 and 24 months. Pearl farmers must wait and care for oysters until they reach a grafting size. This ensures that the wild oyster stocks are not depleted and gives farmers access to strong adult oysters that can be used for cultured pearl production.Īn oyster must reach a certain size before it can be operated in order to induce the birth of a cultured pearl. A number of studies have reported on pearl oyster spat collection in western Pacific countries including the Solomon Islands (Friedman et al., 1998 Friedman and Bell, 1999 Friedman and Bell, 2000) and Australia (Beer and Southgate, 2000), but information on pearl oyster spat collection in Fiji has not previously been reported. In areas of Australia, adult wild oysters (of specific sizes) are collected under a strict quota system regulated by government. Whilst in French Polynesia nature permits Pinctada Margaritifera oysters to be collected at a juvenile stage ('spat') in the wild, in other areas where oyster reproduction is insufficient or qualities are not high enough oyster hatchery programmes are used. The condition varies in different countries. LRNows Spat Catcher Program relies on community volunteers who have tidal waterfront access to help guide our oyster restoration efforts. One is to collect them in the wild, the other is through oyster breeding programmes in hatcheries. The Zapco spat trap comes with 25 one meter spat catcher slats made from a special formulated calcium filled flexible plastic resin. In Atlantic Canada, Eastern oyster growers rely almost entirely on wild spat collection. ![]() Juvenile pearl oysters can be obtained in two ways. Economic assessment of community-based pearl oyster spat collection and mabé pearl production in the western Pacific Author: Johnston, Bill, Kishore, Pranesh, Vuibeqa, Gary Bingnald, Hine, Damian, Southgate, Paul C. produced in aquaculture, the spat collection method differ. ![]()
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