Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Lifou 2000: A Major Scientific Survey

04.02.2002


The coral reefs of New Caledonia, a major focus of marine biodiversity, are exceptional as subjects for investigation by zoologists and ecologists. They harbour an extraordinary profusion of species, representing one of the most complex ecosystems in the world’s oceans. Exploration of a single bay, during the Lifou 2000 research campaign, found a treasure trove of discoveries highly stimulating for scientific imagination and debate.



The scientific survey LIFOU 2000, organized and led jointly by the French National Museum of Natural History (MNHN) and the Instituit de recherche pour le développement (IRD), was conducted at Lifou (Loyalty Islands Province) in October and November 2000. It brought together an international team of 35 scientists, with the logistical means of IRD and the support of the TotalFina Elf Foundation. Unlike the main island, Grande-Terre, surrounded by a lagoon, Lifou is a raised atoll, a large flat island with no rivers. Its reefs plunge straight down to the abyssal depths. The invertebrate fauna had not been studied there since the days of pioneering research by missionaries – over 100 years ago.

An array of collection approaches was used, including diving, drag-netting and harvesting specimens at low tide. This wide-ranging biological survey revealed a magnificent diversity of tropical fauna. It found at Lifou, over an area of barely 5000 ha, nearly 3000 species of mollusc living, which is 1.5 times as many as in the entire Mediterranean (3 million km_) ! Moreover, which is striking, most of the species are rare or even very rare. In fact 28% of them have been seen only once and 22% are represented only by single examples. The samples collected from Lifou 2000, which include several hundred unknown species, signify a world first : the survey is the only study to have available an exhaustive quantified inventory of the species richness of a whole site. An international network of 120 taxonomists is being coordinated by the MNHN to study this wealth of fauna. Many more years of investigation will be needed before these samples can yield all the information they hold.


The results from LIFOU 2000 provide thought for coral reef conservation strategies. The extreme heterogeneity which has been demonstrated suggests that organizing several protected sites into networks could be an alternative to the current system of independent protected areas somewhat isolated from each other.

The Lifou 2000 survey team is now planning a campaign of similar scope in South-East Asia, at the heart of the " Golden Triangle " of reef biodiversity, the " Holy Grail " of all marine zoologists.

Helene Deval | alphagalileo

More articles from Life Sciences:

nachricht Decoding the genome's cryptic language
27.02.2017 | University of California - San Diego

nachricht New risk factors for anxiety disorders
24.02.2017 | Julius-Maximilians-Universität Würzburg

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New pop-up strategy inspired by cuts, not folds

27.02.2017 | Materials Sciences

Sandia uses confined nanoparticles to improve hydrogen storage materials performance

27.02.2017 | Interdisciplinary Research

Decoding the genome's cryptic language

27.02.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>