Sexual encounters and luminous
signals in the deep sea

Peter Herring, Ph.D.
Southampton Oceanography Centre

Wednesday, August 30, 2000
3:00 p.m.—Pacific Forum

Pachystomias microdon

Deep-sea animals are not very abundant, yet they must encounter one another for sexual reproduction to maintain the populations. Many species have sexually dimorphic light organs and it is assumed that these facilitate sexual encounters.

I give some examples of the known numbers of some fish and crustaceans and discuss whether luminous signals can provide the primary sensory channel for species recognition.

Next: Development of microbiochemical systems and their application to in situ genetic analysis systems for deep-sea microorganisms