Scientist community and testimonies

Argos is worldwide and we aim to enhance an online community to connect with people and information that interest you no matter where you are on the planet. Take the opportunity to share with us your experiences, pictures and ideas.

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sea turtle equipped with a localisation device

10.07.2020 Animal tracking applications Sea turtle ecology: a novel solution to increase knowledge using Argos

An essential part of animal conservation is knowing and understanding their behavior. More than 500 turtles are tracked every month with Argos so that scientists can identify feeding and nesting areas as well as understand their migratory patterns.   We know where sea turtles go…
Loggerhead turtle equipped with a satellite tag. Source: Miquel Gomila/SOCIB

06.07.2020 Animal tracking applications Data collected from animals can help ocean observing systems

Data collected on animals by Argos satellite telemetry can be provided to physical oceanography, to fill in a number of gaps in the ocean observing systems. A study details how animal-born instrumentation can complement the Argo automated profiling float array. Photo: Loggerhead turtle equipped with a satellite tag. Source: Miquel…
Wandering albatross chick shortly before fledging at Bird Island (South Georgia), fitted with an Argos PTT (Credit BAS)

22.06.2020 Animal tracking applications Argos helps in assessing fisheries bycatch risks to seabirds

After more than thirty years of Argos satellite telemetry, the extensive datasets that have accumulated can be used in diverse, large-scale studies. Incidental mortality (bycatch) in fisheries threatens Southern Ocean seabirds such as albatrosses and petrels. Data from the Argos system can be combined with other tracking data for comprehensive…
Marie B basking shark with a tag in trail (© Y. Massey-APECS)

08.06.2020 Animal tracking applications Basking sharks’ long journeys between Brittany and Cape Verde

Basking sharks can travel several thousand kilometers in a few months, as was discovered by monitoring their movements with Argos satellite tracking tags. Two basking sharks, in particular, nicknamed Anna and Marie B made impressively long journeys between Brittany and Cape Verde. Photo: Marie B with a tag (© Y.
seal with an Argos beacon

04.06.2020 Animal tracking applications Seals tracked by Argos prove great migrators

Did you know that seals are able to learn the melody of the Star Wars theme? Or that scientific studies based on Argos tracking data have confirmed they are great migrators? The grey seal, long hunted for its fur, still holds lots of surprises. We met Cécile Vincent,…
ocean

29.05.2020 Flash news How does EUMETSAT measure ocean temperature?

The ocean is the world’s first heat concentrator. Measuring the temperature of our oceans is one of the key indicators of global warming. EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites), the European Space Weather Agency, renews its confidence in CLS by extending…
An Andean condor with an Argos GPS PTT (credit Gonzalo O. Ignazi)

25.05.2020 Animal tracking applications Conservation priority areas for the Andean condor

Satellite telemetry enables to identify preferred habitats of the Andean condor, depending on their functions. Conservation priority areas for this scavenger bird can thus be better determined. Photo: An Andean condor with an Argos GPS PTT (credit Gonzalo O. Ignazi) The Andean condor (Vultur gryphus) is emblematic of the region…

11.05.2020 Animal tracking applications Distribution of baleen whales in the mid-North Atlantic Ocean

Baleen whales are highly migratory, going from low latitude in Winter to high-latitude waters in Summer. Satellite telemetry such as Argos has improved the knowledge of their distribution and movements. Using SEAPODYM ecosystem model enables to complement the telemetry and determine the effect of environmental conditions…
A wookcock captured for marking (credit EWMRC)

27.04.2020 Animal tracking applications American woodcock are tracked using Argos satellite telemetry

American woodcock are tracked using Argos satellite telemetry by the Eastern Woodcock Migration Research Cooperative. Those migratory birds, travel nocturnally along the Eastern and central part of North America. Their secretive behavior makes their migratory behavior largely undescribed. Thanks to satellite telemetry, their migration is now tracked continuously by the…
penguins group

22.04.2020 Animal tracking applications 5 key figures for World Penguins’ Day

On April 25th, 2020, we celebrate World Penguin Day. There are 18 species of penguins worldwide, living almost exclusively in the Southern Hemisphere. From the noble Emperor penguin to the smaller, Little penguins, these aquatic birds are extremely endearing and inspiring creatures. Argos satellite tracking has made…
An eel in the sea with a pop-up tag

21.04.2020 Animal tracking applications Eels’ travel in the Atlantic tracked by Argos satellite telemetry

Eels, threatened by pollution, virus and parasites, overfishing, habitat loss and climate change have seen their population drop in the past decades. Their life and behaviour are studied to better understand the causes of this decrease. Their migration – when adults cross the Atlantic to the Sargasso Sea…
Jupiter on its way to the ocean (Photo Aquarium La Rochelle SAS)

15.04.2020 Animal tracking applications Two very different destinations for two adventurous turtles

CESTM coordinates the French Eastern Atlantic Marine Turtle Network and welcomes all marine turtles found stranded or in distress drifting or as accidental by-catch along the Channel & Atlantic coasts of France (from the Spanish border to the Belgian border). 220 of the turtles thus cared for have been released…
Forest elephant after attachment of PTT (Credits North Carolina Zoo)

09.04.2020 Animal tracking applications Argos helps to define a protected area for elephants in Cameroon

African elephants are under assault due primarily to the illicit ivory trade and, to a lesser extent, to habitat destruction and human incursions. Numbers are plummeting throughout most range states. Understanding elephant movement patterns, home ranges, land use patterns and corridor use are essential in developing conservation strategies.
A grey-headed albatross chick with an attached PTT (the aerial can be seen coming from the back of the bird). (credit Derren Fox)

30.03.2020 Animal tracking applications Tracking of juvenile grey-headed albatrosses

Albatrosses are iconic seabirds of the Southern Ocean. Argos satellite telemetry has greatly increased knowledge of the at-sea distribution and behaviour of adults, and contributed to initiatives aimed at reducing their bycatch in fisheries. However, much less is known about movements of juveniles and immatures, which are potentially at higher…
Earth view from space

16.03.2020 Flash news CLS Response to COVID-19

In this unprecedented situation, many countries have taken decisions to protect their citizens. CLS is bringing its full support to help fight the spread of the virus. We are following the recommendations of the WHO and the French government, while continuing to meet our customers’ needs.
A chinstrap penguin

16.03.2020 Animal tracking applications Chinstrap penguins are spreading a long way around Antarctica

Chinstrap penguins live around Antarctica. To understand better the precise reasons why their population is slowly declining, researchers from the Antarctic Ecosystem Research Division of NOAA fitted some of them from three different breeding grounds with Argos PTT, to track them during the Austral Winter, comparing the tracks with environmental…
One of the tracked birds, named EH, at Pak Thale, Thailand, 14 November 2019 (Credit Ayuwat (Ton) Jearwattanakanok)

02.03.2020 Animal tracking applications Spoon-billed sandpipers, long-range travellers

Spoon-billed sandpiper are small shorebirds migrating long distances from Russia to the south of China, mostly along the coasts. Argos telemetry is helping to answer questions about those migrations as part of an international effort to save the species. Photo: one of the tracked bird, named EH, at Pak Thale,…
A bowhead whale (cropped from Kit Kovacs/Norwegian Polar Institute)

17.02.2020 Animal tracking applications Bowhead whales, auxiliary oceanographers

Bowhead whales are crossing iced regions in spring. They dive along their path and the environmental parameters are recorded and transmitted if they are equipped with Argos satellite telemetry tags. Two different tags have been tested and their records analyzed for both oceanographic and ecological studies. Photo: A bowhead…
Two dorcas gazelles (credit C Enseñat)

04.02.2020 Animal tracking applications Dorcas gazelles’ seasonal patterns of activity recorded by Argos

Dorcas gazelles live North of Sahel, in Africa. In some countries they are vulnerable and reintroducing them requires assessing their ability of adaptation to a new environment. Argos transmitted activity data recorded by collars enable to better understand their modes of activities depending on the seasons. Photo Two dorcas gazelles…
An Olive Ridley turtle with an Argos PTT glued on its back. The glue is made so as to fall off within one year (credit Katsufumi Sato, University of Tokyo)

22.01.2020 Animal tracking applications Olive Ridley turtles help in ocean climate forecasting

Olive Ridley sea turtles live in the tropical oceans. They dive to feed, and, as all species of sea turtles, they are threatened these days. To help in understanding and protecting them, some are tracked using Argos satellite telemetry. However, the environmental data thus collected can help other fields of…
first message from Argos beacon

16.01.2020 Flash news ANGELS, the First French Industrial Nanosatellite, Works!

The first ARGOS satellite dedicated to environmental monitoring was launched in 1978 by NASA. Since then, this system has been at the service of the international scientific community and has enabled a better understanding of our Earth, its fauna, climate, meteorology, etc. Some scientists even say…
A silky shark with a pop-up tag (Credit NOAA Fisheries)

06.01.2020 marine animals Understanding silky shark movement patterns to avoid interactions with fisheries

Silky sharks occupy the same habitat as some marketable tuna species, thus leading to high risks of bycatch by fisheries. A NOAA study using a combination of telemetry technologies, including Argos satellite telemetry, aims to identify potential patterns in silky shark behavior in order to devise effective bycatch mitigation strategies.
ANGELS, Copyright David Ducros

18.12.2019 Flash news Angel, successful launch – The Argos metamorphosis is on its way

On December 18, 2019, the French Space Agency, CNES, has launched the first Argos nanosatellite, marking the beginning of a revolution in the Argos system as we know it. This nanosat is the prototype mission for Kinéis, a constellation of 25 nanosatellites with Argos instruments onboard…
Photo: A lesser kestrel with an Argos PTT (Green Balkans)

17.12.2019 Animal tracking applications Where do European Lesser Kestrels go?

The lesser kestrel is a small falcon migrating from Europe to Africa. A study using a large dataset of tracked birds made it possible assess the differences of migration paths and African arrival points depending on their breeding regions in Europe. This can used in devising effective conservation strategies throughout…
National Geographic “Sea to Source Expedition.” Photo copyright Alasdair Davies

13.12.2019 Flash news New, open-source access to the Argos system

Have you ever wanted to design your own Argos satellite transmitter? Now it’s possible!  CLS and the Arribada Initiative are pleased to announce a new open-source reference design by Icoteq, Ltd. Used with the ARTIC R2 chipset, a low power Argos 2/3/4 single chip radio, designed during an…
Weddell seal

06.12.2019 Animal tracking applications Better understanding of Weddell seals’ diving

Weddell seals are the most southerly breeding mammal species. They are found among other places in the Weddell Sea, but their behaviour and foraging strategies are not well-known, in an area itself largely unknown. Scientists at the Alfred Wegener Institut tracked them using Argos PTTs recording…
a porcupine crab with its harness (Credit University of Windsor)

29.11.2019 Animal tracking applications Deep-sea crabs tracked with Argos!

Deep-sea species are scarcely known. However, a team at the University of Windsor in Canada has devised a means of tracking porcupine crabs living at 900 m depth. Pop-up archival tags programmed to release at regular intervals emitted data, collected by Argos, resulting in a better view on this species’…
Male black caiman with an Argos satellite transmitter glued to its head (photo S Caut)

19.11.2019 Animal tracking applications Studying black caimans in and out of their pond

Crocodilians are tropical wetland ecosystems’ top predators, but they are rarely studied. Black caimans, which live between Central America and the northern part of South America, saw their population drop by 90 % in the 20th century. To have a better understanding of their behavior, scientists used Argos PTTs to track…
great spotted cuckoo iStock

14.10.2019 Animal tracking applications Great spotted cuckoos tracked far from the nest by Argos

Cuckoos’ most well-known characteristic is the laying of their eggs in another species’ nest taking advantage of the care provided by these foster parents (brood parasitism). But some cuckoo species, such as great spotted cuckoos, are also migratory. Advancements in Argos satellite telemetry – especially miniaturization of Argos tags –…
Saimaa ringed seal tagged with a GPS-Argos tag (Wildlife Computers, USA), photo: Saimaa ringed seal research UEF.

03.10.2019 Animal tracking applications Lake Saimaa ringed seals

Ringed seals are living during winters in ice covered environment, both sea and lakes. One of the subspecies is living around Lake Saimaa in Southeastern Finland, where human activities are restricting their living areas and the population is endangered. The University of Eastern Finland has studied their movement using telemetry…