Boring but not Bored

Yellow boring sponge, probably Cliona celata, with algae show there is a rock here hidden in otherwise flat sandy/muddy bottom of Mahurangi Harbour.

Keywords: sponge yellow boring “boring sponge” “yellow sponge” “yellow boring sponge” Cliona celata “Cliona celata” Clionaidae underwater undersea Pacific ocean temperate Mahurangi harbour bottom sandy sand algae vegetation weed weeds sea