Harvesting
It is currently estimated that it will take six years to grow a geoduck to market size (i.e. at least 1 kilogram live weight). Because mature geoduck can live almost a metre below the substrate, harvesting presents a small challenge. Currently, both inter-tidally and sub-tidally, geoduck are harvested simply and economically by use of a wand which expels high pressure water. The injected water liquifies the sand substrate around the geoduck. It can then be gently removed by grasping the siphon. In this way no damage is done to the animal by the harvesting process.
国内的海鲜市场很多以假乱真,起码三文鱼是根本不能吃的.
(来源:
http://bcsga.ca/about/industry-encyclopedia/geoduck/)