A Survey of the Macrocystis pyrifera (L.) C. Agardh Stocks on the East Coast of Tasmania, 1986.

A survey of the east Tasmanian coastline from Musselroe Bay to South East Cape revealed a total of 10 km2 of Macrocystis pyrifera (Linnaeus) C. Agardh 1820 kelp forest. Average harvestable quantities based on Alginates (Australia) Company records (1965-72) show that cropping can expect to yield 5 ton/acre or 1.23 kg/m2. This realizes a total of 12,300 tonne available on the East Coast of Tasmania in 1986. Review of past records show fluctuations in total amounts harvested, due possibly to factors such as high oceanic water temperatures with subsequent low nutrient concentrations and storm damage.\nThe survey was conducted from a light aeroplane. Areas of Macrocystis pyrifera beds were marked on 1:100,000 topographical land tenure maps using landmarks as references. Digitising of bed outlines on maps was done using Mapinfo.\nWeight of Macrocystis per unit area is also estimated from quadrats harvested at a number of sites along the coast.

对塔斯马尼亚东海岸从墨塞尔罗湾（Musselroe Bay）至东南岬（South East Cape）实施的调查结果显示，该区域共分布有10平方千米的巨藻（Macrocystis pyrifera (Linnaeus) C. Agardh 1820）林。根据澳大利亚藻酸盐公司（Alginates (Australia)）1965至1972年的运营记录，该类巨藻的平均可采收产量可达5吨/英亩，或1.23千克/平方米。据此估算，1986年塔斯马尼亚东海岸的巨藻可采收总规模可达12300吨。对历史采收记录的复盘分析显示，巨藻总采收量存在波动，潜在影响因素包括海洋水温偏高引发的营养盐浓度降低，以及风暴破坏等。
本次调查通过轻型飞机开展。调查人员以实地地标为参照，在1:100000比例尺的土地权属地形图上标记巨藻床的分布区域。随后通过Mapinfo软件完成了地图上巨藻床轮廓的数字化处理工作。
研究人员还通过在沿岸多个站点采集样方（quadrat），估算了单位面积巨藻的生物量。