Anyone a sponge expert?
Lamb & Hanby, p. 73. Face up in strong current, no mucus.
About 2" across, slightly soft to touch, in tidepool with 6" of water at low tide. Very beautiful, looked vaguely like slices of lotus root.
Found in the intertidal zone on coarse sands near the outflow of Scotty Creek.
Found washed up on beach. Appears to be of leuconoid structure.
Yellow encrusting sponge observed via OpenROV. Is this the first iNat bioblitz record made by ROV?
Red sponge found in the channel leading into Lake Merritt, Oakland.
Sponges are animals of the phylum Porifera (/pɒˈrɪfərə/; meaning "pore bearer"). They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and which often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most...