We compared species
on the reef sponges and skeleton with those on/in mud within and
adjacent to the reefs at a conference of spongologists (Austin
et al. 2002 unpub.)
This table is based
on analyses of videos and direct observations during the 14 sub
dives, as well as, sorting and identification of material from 7
With the exception
of fishes, no species occurred on both sponges and on mud. The
fish included a greenling, 7 species of rock fish, and a
sculpin. Eight of these fish spend much of their time swimming
above the bottom and so may not be expected to be associated
with a particular bottom type.
36 species were
identified on/in soft substrate while 87 were identified on
presence of the sponge reefs has a major impact on the types and
numbers of species.
The great majority
of species on sponges (about 90%) occur only on dead skeletons.