Percent cover of Peyssonnelid Algal Crusts at two sites and depths in Great Lameshur Bay, St. John, USVI from July and August 2019

Percent cover of Peyssonnelid Algal Crusts was measured at two sites and depths in Great Lameshur Bay, St. John, USVI in July and August 2019. These sites (Cabritte Horn and Tektite) were selected because the abundance of PAC has been measured in these locations since 2015. Peyssonnelid Algal Crust was surveyed in quadrats placed at random positions along transects positioned haphazardly along the 3 meter and 9 meter isobaths.

2019年7月至8月，研究团队于美属维尔京群岛圣约翰岛大拉姆斯赫尔湾的两个站点及3米、9米两个深度梯度处，开展了皮丝藻结壳（Peyssonnelid Algal Crusts）盖度的测定工作。本次选取的站点为卡布里特角（Cabritte Horn）与特基特（Tektite），因自2015年起便已在此区域开展皮丝藻结壳（PAC）的丰度监测。调查过程中，沿3米与9米等深线随机布设样线，在每条样线上随机放置样方，对皮丝藻结壳盖度进行统计。