One is to collect them in the wild, the other is through oyster breeding programmes in hatcheries. Each cross-piece is at an angle of approximately 30 degrees from vertical, is 5.5cm, (2) high, and has numerous ridges to help spat collection. Seapa currently provides a 1mm spat sock to hold 2mm oyster spat and plans to offer a 1.6mm version in the near future, which will be suitable for 3 – 4mm spat.įor peace of mind, Seapa also recommends using the Stormbreaker clip system, which provides maximum security in even the roughest conditions. Spat collection in the wild using artificial collectors Juvenile pearl oysters can be obtained in two ways.
#Oyster spat collection zip#
The sock’s design maintains the existing oval basket design that is vital to producing a superior oyster shape and minimising the chance of oysters growing into corners.Ī new blank streamline cap provides security via the ability to add a zip tie to effectively lock the lid, while still enabling quick and easy access to the oyster spat at any time. The sock fits the entire Seapa 15L basket range, although we recommend use in the 20mm mesh size to maximise water flow.
#Oyster spat collection pdf#
Seapa ‘ Oyster Spat Socks’ are made from high-quality polyester materials, with reinforced seams to ensure your stock is safe and secure. Request PDF Spat collection of the pearl oyster (Pinctada margaritifera cumingii) in French Polynesia: An evaluation of the potential impact on genetic variability of wild and farmed populations. In response to the recent shift towards farmers having to handle smaller spat sizes, Seapa has taken a further step by incorporating a mesh insert that will hold oyster spat as small as 2mm in size. Large-scale Floating Upweller System (FLUPSY) Small-scale Floating Upweller System (FLUPSY) (raft version) Yield Efficiency. This basket holds oyster spat down to 6mm and has been adopted worldwide as a viable and effective method for handling oysters through the early stages of growout. Seapa has been bridging this gap through the use of the 3mm 15L oyster basket for years with great success. It can also be difficult to access stock for regular grading and often these do not compliment the rest of the farming system used for oyster growout. Bulky trays can be cumbersome and sometimes require 2 people to manage. Handling oyster spat has always been one of the trickier parts of oyster farming.
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