Figure 2
From: Synergistic negative effects of thermal stress and altered food resources on echinoid larvae

Photomicrographs of larval Strongylocentrotus droebachiensis at age 22 d in treatments consisting of combinations of 3 factors: food type (2 levels: kelp detritus, and phytoplankton), food ration (2 levels: high, and low), and temperature (2 levels: 9 °C, and 17 °C). In panel A: RD = echinus rudiment diameter. Rudiments (R) also are indicated in panels B and E–H. Scale bars are 200 µm.