|Dr Bertrand (in hat) with Prof Peter Ng and key expedition leaders|
working out dredging locations for the expedition.
|Dr Bertrand at the sorting station with volunteers.|
The Wallace Lectures - "Marine Biodiversity: Known and Unknown"
By Dr. Bertrand Richer de Forges
About the talk
The deep-sea is one of the largest yet most poorly known ecosystems on Earth. The major part of the abyssal plains (2500-6000m) is covered by fine mud. The habitat conditions here are extreme: no light, high pressures, cold temperatures and with only a small quantity of food. While the overall biomass is small, surprisingly, the species-richness is high. Some parts of the ocean tend to concentrate life: margins of continents and slopes of the islands, seamounts, thermal vents and cold seeps, as well as numerous ecosystems based on organic substrates like skeletons or sunken wood. Most of these are situated in bathyal depths (200-2500m). In the context of these insights; a panorama of discoveries is presented. It represents an enlightened vision of life in the deep; that it is in fact, everywhere, light is not essential and chemosynthetic systems that start new food webs are widespread, and species diversity is very high in the bathyal zone. The era for deep sea exploration is far from over — there remains much to do.
About the speaker
Wallace Lecture Series
The Wallace Lecture Series was a series of important lectures delivered in the 1960s by well-known biologists in the then University of Malaya. These lectures stimulated discussion and encouraged the exploration of new ideas in systematics, ecology and natural heritage. It seemed especially appropriate and timely that this lecture series, named after one of the two discoverers of the modern theory of evolution, should be “resurrected” to further research interest and activity in Singapore’s rich biodiversity. This is the second of the Wallace Lecture Series, delivered by an invited Research Scientist brought in by the Raffles Museum of Biodiversity Research of the National University of Singapore, in conjunction with the National Biodiversity Centre (National Parks Board); and supported by Shell Singapore.
Date: 21 Sep (Fri)
Time: 7-9 pm. Light refreshments will be served before the talk at 6.30 pm
Venue: Level 1, Function Hall, Botany Centre, Singapore Botanic Gardens map on the SBG website
The talk is free but pre-registration is required. Please register at bit.ly/Pa5RN0 by 19 Sep (Wed)
For more information, please contact Koh Kwan Siong at KOH_Kwan_Siong@nparks.gov.sg
Organised by National Biodiversity Centre, National Parks Board and Raffles Museum of Biodiversity Research, National University of Singapore Supported by Shell Singapore