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6 elements for all keywords with the selection : Biodiversité marine et halieutique, 2007

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Present-day species of piranhas result from a marine incursion into the Amazon Basin

Scientific newssheets

Marine and halieutic biodiversity - Venezuela, Brazil, Bolivia, Peru, Argentina

November 2007

The factors that lead to the appearance of new species are still insufficiently understood for a great many animals. However, it is easier to trace back the evolutionary history of those whose biogeographical distribution is well known. This is the case for piranhas for which the whole range of ...

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Coral reef fish harbour an unexpectedly high biodiversity of parasites

Scientific newssheets

Marine and halieutic biodiversity - New Caledonia

July 2007

Coral reefs are known for their exceptional biodiversity. Over 10 000 different species of birds, corals and molluscs have already been described by taxonomists within these aquatic ecosystems. They are fragile, complex and particularly exposed to the effects of global warming.

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The ocean surface, a whole world in motion

Scientific newssheets

Observation and modeling tools, Marine and halieutic biodiversity, Ocean, climate, impacts

May 2007

The quest for understanding the greenhouse effect is rallying the scientific community around the study of the ocean’s upper sunlit layer (30 to 120 metres). This layer plays a role in the absorption of atmospheric carbon dioxide by incorporating it in the form of organic matter, which is then ...

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Perspectives for sustainable management of giant clam fishing

Scientific newssheets

Marine and halieutic biodiversity -

April 2007

Giant clams of the species Tridacna maxima are classified as threatened for many areas of the Pacific. Large, even enormous aggregations of these molluscs are still observed in some remote islands and atolls of French Polynesia. Nevertheless, the combined effects of increasing catch sizes ...

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In Cirata (Indonesia), aquaculture is a victim of its own success

Videos online Channel IRD

Human and social sciences, Marine and halieutic biodiversity - Indonesia

March 2007

In West Java, Indonesia, the water filling of the Cirata dam in 1987 causes the eviction of thousands of small farmers. As a compensation, the Indonesian government, with the support of the World Bank, develops an aquaculture project which consists of floating cages on the lake. ..

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