The purpose of this publication is to perform a system analysis of new cultivation technology for exposed bivalve farming. The technical feasibility of the new construction, called Shellfish Tower, was assessed. The device has gone through several very different phases of development on its way to the deployment of the prototype. These included multiple iterations during the designing stage, wave tank testing, fabrication, loading and unloading on trucks and vessels, deployment at sea, installation and assembly on the single mooring line, and bring it to its final position in a submerged mode 5m-10 m below the water surface. The final structure has a hexagonal body, with a centrally orientated variable buoyancy unit with culture sub-units on each of the six corners. These sub-units can be used for the culture of oysters (Magallana gigas – formally Crassostrea gigas) as well as for the collection of mussel spat (Perna canaliculus). Other possible candidates could be seaweed, lobsters, sponges or tunicates. The operational depth of the whole system can be at any depth but was tested at between 5 and 10 m below the water surface positioned on the mooring line between the screw anchor and surface floats for the prototype tests. The system was deployed in March 2019 six nautical miles off the Bay of Plenty, North Island (New Zealand), in exposed waters near a commercial mussel farm and has been in test mode since then. The modelled structure indicates a design tolerance of significant wave height of over 7 m and currents of over 0.8 m/s. Initial results show that the new design has survived waves at 4.6 m significant height and current velocities of up to 0.7 m•s^-1, while showing best growth conditions of the cultured oysters as well as for the spat settlement of juvenile greenshell™ mussels.

该出版物的目的是对裸露的双壳类养殖的新栽培技术进行系统分析。名为贝类塔的新建筑的技术可行性，进行了评估。该设备在部署原型的过程中经历了几个非常不同的开发阶段。其中包括设计阶段的多次迭代，波箱测试，制造，在卡车和轮船上的装卸，海上部署，在单个系泊绳上的安装和组装，以及将其置于水下5m-10的最终位置在水面以下。最终结构为六边形主体，在六个角的每个角上都带有一个中心定向的可变浮力单元和培养亚单元。这些亚单位可用于牡蛎养殖（Magallana gigas –正式为Crassostrea gigas）以及贻贝的收集（Perna canaliculus））。其他可能的候选人可能是海藻，龙虾，海绵或外衣。整个系统的操作深度可以在任何深度，但是在原型试验中，在位于锚固件和浮标之间的系泊线上的水面以下5至10 m之间进行了测试。该系统于2019年3月部署在距新西兰北岛普伦蒂湾6海里处的商业贻贝养殖场附近的裸露水域中，此后一直处于测试模式。建模的结构表明显着的波高超过7 m和电流超过0.8 m / s的设计公差。初步结果表明，新设计可以承受4.6 m的显着高度的波浪，并且流速高达0.7 m•s ^-1，同时显示出养殖牡蛎的最佳生长条件以及少年绿壳贻贝的卵沉降。