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Copyright Thibault Powolny

Based at the Centre d’Etudes Biologiques de Chizé,  in the Deux-Sèvres region of eastern France, the real field of investigation of these biologists is thousands of kilometers away from mainland France. In the French Southern and Antarctic territories, made up of the Crozet and Kerguelen islands and Adélie Land, these far-fl ung researchers are studying unique regional biodiversity. But Christophe Guinet, the elephant seal expert and Charles-André BOST, alias Charly, the king penguin man will both be in Toulouse on October 6th for the Argos seminar. Between the two of them, they track almost 300 animals via the ARGOS system. Together, they’ve discovered the ‘positive’ or negative effects of global warming on the three populations endemic to these southern territories.

Christophe Guinet has discovered that global warming shifts the elephant seal’s feeding zones to deeper waters. These mammals therefore spend more time and energy in diving for food. Consequently, the females build up less reserve, and give birth to offspring that are less equipped to face life’s challenges. They also wean them in worse conditions. As a result, mortality rates could reach 70 to 90 % in unfavourable oceanic and climatic conditions.

Charles-André Bost has placed nearly 200 Argos transmitters on king penguins, and his conclusion is clear. Using data collected from the Argos satellites, scientists have established predictive models which show that if man continues using fossil fuels as he does today, king penguins will have disappeared from the north of their distribution area (Crozet and Marion islands) by 2100. This disappearance would be a dramatic loss for the biodiversity of these regions. It would also entail the loss of a link in the food chain, with a still unknown impact on the Southern Ocean.

To learn more:

27.09.2018 EUCAW Speakers Using Argos for turtle dove management

Hervé Lormée, of the French Office National de la Chasse et de la Faune Sauvage, will present his work Argos at the European User Conference on Argos Wildlife (EUCAW). The European Turtle Dove Streptopelia turtur shows one of the most dramatic population decline among all farmland…
Sunfish tagged with an X-Tag at Eastern Taiwan. Credits Tuna and Billfish Tagging Project in Taiwan

25.09.2018 Goniometer Finding sunfish’s pop-up Argos tag with Goniometer

The Tuna and Billfish Tagging Project in Taiwan uses Argos satellite telemetry pop-up tags to track pelagic species. A total of five tags were recently retrieved using Argos Goniometer, including three tags on amberjacks, one on a big-eye tuna and one on a sunfish. Two of them were found…
thresher shark

24.09.2018 EUCAW Speakers COLSHARK program: first satellite tagging of thresher shark (Alopias pelagicus) in Eastern Tropical Pacific Ocean

Armelle Jung’s presentation at the European User Conference on Argos Wildlife (EUCAW) will focus on the pelagic thresher shark (Alopias pelagicus). It is one of the largest and most abundant open ocean predators in the Eastern Tropical Pacific (ETP), and one of the most exploited shark in the sub-region. A.
Requin-taupe

24.09.2018 EUCAW Speakers New insights on porbeagle stock structure in the North East Atlantic from PSAT deployments

At the European User Conference on Argos Wildlife (EUCAW), Gérard Biais, Ifremer, reports on the porbeagle shark (Lamna nasus), a large pelagic shark found throughout the North Atlantic. The state of the stock remains unknown in the North East Atlantic. However, presuming that this stock might be at risk,…

24.09.2018 EUCAW Speakers Silver Eel migration behaviour in the Mediterranean Sea

Although Mediterranean ecosystems such as coastal lagoons are known to be productive habitats providing numerous silver eels in short generation time, migration routes used by silver eels in the Mediterranean Sea have been poorly studied. Using pop-up satellite during escapement from coastal waters, Elsa Amilhat, of the Université de Perpignan,…
White-tailed sea Eagle in flight with a fish in the claws

24.09.2018 EUCAW Speakers The utility of Argos satellite tagging in monitoring a long-lived raptor: White-tailed Sea Eagle reintroduction to Ireland

Allan Mee, of the Golden Eagle Trust, Norwegian Institute for Nature Research, presents his work reintroducing white-tailed sea eagles, at the European User Conference for Argos Wildlife (EUCAW). As he explains, white-tailed Sea Eagle (WTSE) Haliaeetus albicilla became extinct in Ireland in…
Tropical tuna tagging Uruguay-P.Miller-2017

24.09.2018 EUCAW Speakers The experiences of the Atlantic Ocean Tropical Tuna Tagging Programme

The Atlantic Ocean Tropical Tuna Tagging Programme is a five year duration project funded by the EU (DG-DEVCO) and ICCAT signatory countries (CPCs). Its aim is to improve the management of the three main tropical tuna stocks (bigeye, skipjack and yellowfin) in the Atlantic using up-to-date population parameters, such as…
Arctic marine mammal

24.09.2018 EUCAW Speakers Unveiling the life of Arctic marine mammals through the use of satellite telemetry

Some of the most intriguing questions about migrations and natural behavior of marine mammals are focused around Arctic seals and whales. Animals that are widely dispersed in inaccessible areas and that only in brief seasons can be observed in their natural surroundings. Naturally these species have also been targeted by…

24.09.2018 EUCAW Speakers The RSPB and Argos – an overview of using satellite telemetry in scientific research

At the European User Conference on Argos Wildlife (EUCAW), Nigel Butcher will discuss how the Royal Society for the Protection of Birds (RSPB) has benefitted from the Argos tracking system. His work, although primarily focussed on species in the UK and UK Overseas Territory (UKOT’s), does…

24.09.2018 EUCAW Speakers Reporting on the work of Russian scientists in the Arctic using specialized Argos tags

Alexandre Salman, of ES-PAS, reports on the work of Russian scientists at the European User Conference on Argos Wildlife (EUCAW). As he explains, since Argos instruments fly onboard polar-orbiting satellites, therefore, in Arctic zones, satellite passes are more frequent and scientists are able to transmit a higher…