| Algae, macroalgal, and kelp, such as oarweed and laminaria hyperboria, and species of maerl are found as well. |
| When presented with five macroalgal species concurrently, H. sanguineus preferred green algae to red and brown algae. |
| Surveys at Discovery Bay showed that Diadema reappeared on the shallow fore reef after 1996, accompanied by drastically reduced macroalgal cover. |
| There are no published reports to our knowledge, however, examining various preservation techniques for macroalgal food sources of echinoids. |
| Moreover, in the absence of invertebrate prey, introduced decapods may also feed on some macroalgal species and thereby cause shifts in the macroalgal community structure. |
