Research Article

Structural Arrangement and Properties of Spicules in Glass Sponges

Figure 8

Triboluminescence of a corporeal spicule of a glass sponge Asconema setubalense upon thermal destruction (scales in (a, b) are different). (1) A 1 ms time mark; (2) the outcome of the luminescence signal. Deviation of the recording line corresponds to accretion of the optic signal. (3) The acoustic signal. The flash on the recording is the acoustic emission upon the explosive destruction of a spicule. The arrow indicates the anterior front of the luminescence signal.