For instance, in 2018, they visited a location that had been devoid of urchins the year before and discovered a kelp forest. The sea urchins had migrated into shallower water where red foliose algae were abundant, away from the reef that they had stripped of kelp. “They prefer kelp, but...
Purple sea urchins (Strongylocentrotus purpuratus) are a native species that plays an important role in a healthy kelp forest ecosystem. In a typical healthy kelp forest, urchins feed primarily off drift kelp, or the kelp that has fallen off. Urchins typically stay in the cracks and crevices ...
Imaging revealed dramatically lower densities of microbial cells on Squaxin Island kelp (Fig.8) compared to the tip of Tatoosh Island kelp blades. The absolute abundance of bacterial cells was two orders of magnitude higher in samples collected from the persistent kelp forest located on the outer ...
R0+WVand R0+MSREshowed the same general patterns as the hyperspectral data (Figure 5a–d). However, some spectral information was lost with the reduction of spectral resolution, such as the location and magnitude of different peaks. Overall, the differences in width and placement of bands result...