Fish - Archives

With their unique hammer-shaped heads and sleek, powerful bodies, hammerhead sharks are among the most recognizable predators in the ocean. But behind their striking appearance lies a troubling...

Sunfish is a strange creature roaming the temperate and tropical oceans throughout the world, including in the Mediterranean Sea. Tracking it using pop-up archival tags can help in better understand...

Blue sharks are threatened - as most shark species. However, basic information on the species in the Mediterranean are missing - population, habitat, migration…  -- while this sea is specific,...

Smooth hammerhead sharks are a threatened species of shark – as most shark species. Locating their essential habitats, like the nurseries could make a difference in their protection. Argos can help...

"I think anyone who’s used Argos will have to admit that they’ve learned something revelatory. The more we use Argos to track animal movements, the more we see that their movements are far more...

Reef manta rays are a vulnerable species. They grow up in protected shallow areas such as lagoons. Tracking them with Argos can help to confirm that a given lagoon is a nursery for this species Reef...

Analysis of migrating eels’ tracks can provide with estimate of the rate of predation on them. It seems that half of the migrating silver eels released on the French Mediterranean coast can be...

Whale sharks are found in all tropical waters around the globe, including in the Atlantic Ocean. Some places could host their reproduction, thus being critical places to protect and potentially...

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,...

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...

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...

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...

The 3rd Meeting of the Signatories of the Memorandum of Understanding on the Conservation of Migratory Sharks took place from December 10-14th at the Museum for Oceanography of Monaco. It was hosted...

Whale sharks are living in all the warm oceans of our planet. Population repartition and behavior still need to be understood, as well as their movements. Example of a new feeding area for juvenile...

Hammerhead Shark Research is a project that studies hammerhead sharks Sphyrna spp in the Canary Islands with the aim to contribute scientific base knowledge of these species in an understudied...

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...

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...

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...

The Atlantic Ocean Tropical Tuna Tagging Programme is a 5 year duration project funded by the EU (DG-DEVCO) and ICCAT signatory countries (CPCs). Its aim is to improve the management of the three...

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...

Francisco Alemany's presentation at the European User's Conference on Argos Wildlife (EUCAW) will focus on the ICCAT Atlantic Wide Research Programme for Bluefin Tuna (ICCAT GBYP) started with...

Fisheries management is a touchy question all around the world. The many species exploited require quotas, seasonal or regional limitations on fishing in order to maintain stocks at renewable...

Whale sharks are about the opposite of your archetypal shark. These gentle giants, the biggest fish in Earth’s oceans, are living on a steady diet of plankton (with the addition of small crustacean,...

The french association APECS (Association for the Study and Conservation of Selachians) is a Brest association dedicated to the study and conservation of sharks and rays. The members of this...

Eels are still nowadays a very mysterious fish species. To better know their swimming behaviour when leaving the European coasts, accelerometers are used in conjunction with Argos pop-up tags to...

Porbeagle shark is a wildlife species which migrates long distances. Monitoring their movements is important to help protect them. Since they are permanently subaquatic, they are located using Argos...

Understanding and monitoring marine species is crucial for the development of coherent and effective management practices. That is why the French Agency for Marine Protected Areas, now part of the...

At the 2nd Argos Asian Wildlife Tracking Workshop in Incheon, Korea, Dr. Sukyung Kang of Korea's National Institute of Fisheries will present the results of her study: "Movement of Pacific cod...

Dr. Wei-Chuan (Riyar) Chiang of Fisheries Research Institute, Taiwan, will share the results of his studies on "Vertical and horizontal movements of billfish in the northwestern Pacific Ocean...

APECS (Association for the study and conservation of selachians) is a Brittany-based organization with a scientific and educational mission. It acts in favor of the conservation of sharks, rays and...

Researchers from James Cook University fitted more than 10 tiger sharks and 10 green sea turtles with satellite tags at Raine Island over a five year period to better understand tiger shark...

The first whale shark was tagged in the Gulf of Tadjoura, Djibouti, 2006. Two more followed in 2011. The Argos system allowed the association to track one of the whale shark until island of Socotra....

Climate change will impact fishes in complex ways, from high-energy-demand species such as yellowfin tuna, to more sedentary animals such as tilapia. While the ability to predict these impacts is...

Tiger sharks, an IUCN ‘near-threatened’ species, are widely believed to be a coastal species. But in an article published in Scientific Reports on June 9th, 2015, scientists James Lea and Brad...

Mary Lee has recently attracted a lot of attention on social media through her @MaryLeeShark Twitter account. This 3.500 pound white shark was tagged two years ago by Gregory Skomal, Senior...

The project is implemented for a period of 2 years by the MIA - Mediterranean Association of Producers Organisations - as part of development actions and support of French Mediterranean fisheries,...

Movebank help animal tracking researchers to manage, share, protect, analyze, and archive their data. Movebank is an international project used by research and conservation groups around the world....

Qatar is home to a great diversity of marine animals. Each year, hundreds of whale sharks return to the Qatari waters near the Al Shaheen oil field, in the north of Qatar. To protect the whale...

Sharks are currently threatened all over the world, and the general public does not enough about their behavior and evolution. For the past 12 years MCSI (Marine Conservation Science Institute)...