Latest News

Stay on top of new developments with logger updates, research studies, online tools and more. Our monthly newsletters cover the latest.

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April 28. - 2021

New Enormous Deep-Sea Predator Detected in Japanese Waters

Researchers from the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) have, along with nine other institutes, discovered a novel deep-sea fish species in the Suruga Bay, Japan. In a recent paper, the scientists describe the discovery of a colossal slickhead (Narcetes shonanmaruae) which was detected unintentionally during research trips investigating the faunal diversity and environment in waters below 2,000 meters.
March 24. - 2021

Ferrets a Suitable Animal Model for Ebola Studies

While most eyes are currently focused on the Covid-19 pandemic, scientists continue to try to learn more about other zoonotic diseases that have the potential to threaten public health. One of these diseases is Ebola, caused by the Ebola virus.
March 24. - 2021

Meet our Upgraded Heart Rate and Activity Loggers

We are always striving to improve our product range to meet our customer's needs. Our most recent product updates involve improvements for our smallest and largest heart rate and activity loggers.
February 4. - 2021

Upwelling Confirmed Off the Tanzanian Coast for the First Time

Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water from deep water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water. Upwelling along the Tanzanian coast has long been suggested, and it is of importance as around 60 million people live within 100 km of the coastline. Many inhabitants are dependent on the ocean for employment and resource for food.
February 4. - 2021

Atlantic Salmon Implantation Recovery Time Is Four Days on Average

Biologgers are becoming increasingly popular to measure free-swimming fish. However, attaching or implanting these devices inevitably requires handling of the animals. Any handling of the study animal can lead to a stress response. To be able to interpret data correctly it is important to know how long it takes the fish to recover from handling, anaesthesia and surgery so that data from the recovery period can be excluded from the data analysis.
December 28. - 2020

African Green Monkeys Established as Suitable Model for Covid-19

A large part of gaining a better understanding of the SARS-CoV-2 virus that causes Covid-19 is finding the most suitable animal models to study the effects of the disease. As primates are our closest relatives in the animal kingdom they have been one of the animal groups used to study the pathogenesis of the disease.
December 22. - 2020

Unnatural Light at Night Has no Effect on Heart Rate or Activity in Caribbean Spiny Lobster

Research has been carried out investigating how artificial light at night impacts the ecosystem and its inhabitants, but the effects on aquatic invertebrates specifically are poorly understood. Light pollution is a fast-increasing threat to terrestrial and aquatic biodiversity and has, for example, been proven to disrupt diel cycle.
December 18. - 2020

Core Body Temperature Cannot be Approximated with Infrared Thermography in Wild Primates

Measuring body temperature in animals is one method of measuring their response to changing environments. One of the methods used in the field is infrared thermography which measures the temperature on the body’s surface noninvasively, but it remains unclear whether these measurements reflect core body temperature accurately.
November 19. - 2020

Lack of Teeth and Gill Rakers May Indicate a Relationship to Spawning

In 2016, two adult barracudina (Arctozenus risso) were caught off the Flemish Cap, Newfoundland, Canada. These specimens were special since they showed unusual attributes including loss of gill rakers and teeth and fragile jaw bones. Moreover, both fish also had ripening ovaries and testes, which confirms simultaneous hermaphroditism.
November 17. - 2020

Heart Rate Loggers do not Compromise Swimming Performance During a Critical Swim Speed Test in Atlantic Salmon

Extensive research has been carried out on exercise physiology of fish, especially on swimming abilities, metabolic rate, heart function and acid-base balance of salmonids. It is widely known that increased oxygen uptake rates and cardiac output support the aerobic metabolic need of exercising muscles until the maximum capacity of the cardiorespiratory system is reached.
October 7. - 2020

Heart Rate and Swimming Activity Used to Measure Stress Response in Atlantic Salmon

Aquaculture farming of Atlantic Salmon has seen a steady growth globally. Bigger production systems and more exposed locations put pressure on the industry to maintain fish welfare and improve farming operations. This includes methods used for fish handling, which is believed to be a major cause of mortality in sea pens.
October 2. - 2020

High Hydrocarbon Concentrations in Fish in the Gulf of Mexico

The marine oil and gas industry has been present in the Gulf of Mexico (GoM) since 1938. By 2018, it covered over 5.3 million hectares in U.S. waters alone, with more than 10,000 platforms and active rigs and 27,000 abandoned wells. In the southern GoM there are more than 2,000 offshore wells and thousands of miles of pipelines.
October 5. - 2020

Snowshoe Hares and North America Red Squirrels Show Different Responses to Environmental Changes

How animals handle changes in the environment differs from species to species. Different species sharing the same habitat can even show different responses to environmental changes.
September 30. - 2020

First Publication Using Star-Oddi Loggers in Covid-19 Research

Since early in the Covid-19 pandemic Star-Oddi has been supplying researchers with loggers for use in research on this novel virus. We are proud to be able to provide research tools for research on Covid-19 and place the highest priority on delivering them as quickly as possible.
July 20. - 2020

Air Exposure Most Critical Factor for Survival of Discarded Fish

The Common Fisheries Policy (CFP) is a set of rules for managing European fishing fleets and for conserving fish stocks. The landing obligation, meaning that you must bring all caught fish to land, of the new CFP has a “high survival”-exemption. This implies that it is permitted to discard fish with scientifically high chances of surviving both capture, handling and release.
July 16. - 2020

Cardiac Performance not Linked to Reproductive Behaviours in Wild Sockeye Salmon

Dominance is a strategy commonly used to improve an individual’s chances of reproductive success. It has been suggested that dominance may be related to physiological performance. However, so far there has been little research to back this up.
July 9. - 2020

Research opportunities due to COVID-19

Due to the COVID-19 pandemic, many research projects have been interrupted because scientists cannot access their equipment or workspace. However, a study published in Science shows that lockdown in India provides a unique opportunity to collect data that would otherwise be impossible to obtain.
July 7. - 2020

Shift Workers at Risk of Disruption to Physiological Rhythms

Modern societies rely increasingly on shift work. Meanwhile, studies have shown that this sort of work can potentially negatively affect our health. It has, therefore, become increasingly important to understand whether shift work has a long-last effect on human health.
June 30. - 2020

Female Moose Demonstrate Hypometabolism During Winter

Understanding how animals living at high latitudes respond to changes in their environment has long interested researchers. In a recent study, scientists at the Inland Norway University of Applied Sciences and the Swedish University of Agricultural Sciences looked at seasonal differences in temperature and heart rate in female moose in Scandinavia.
June 1. - 2020

Barely any COVID-19 in Iceland

Iceland is now in a unique position compared to other countries with regards to the spread of COVID-19. The country has had extremely few deaths and nearly COVID-19 free, as no new cases of the virus have been reported for several days.
May 29. - 2020

Video Available for Star-Oddi’s Heart Rate Webinar

Our webinar Heart Rate Measurements in Fish: Methods, Surgery, and Experimental Design on May 7th was a great success. Nearly 90 participants listened to and interacted with the presenters during the webinar.
June 4. - 2020

Surgical Experience Provides Clearer Benefits for Post-surgical Recovery than Antibiotic Use

Bio-logging has proven to be a unique way to gather information on free ranging animals over short and long periods of time. However, many bio-logging devices required surgical interventions often followed by post-surgical prophylactic treatments. One of the treatments commonly used after surgical procedures in fish is the antibiotic enrofloxacin.
May 29. - 2020

First Mussel Invasion Due to Climate Change Discovered in Antarctica

Climate change affects global biodiversity in many ways. Biodiversity is both declining and distributed differently across the globe, and the last untouched region may be the Antarctic. Researchers from Chile, Canada and USA recently reported findings of the first settlement of the Chilean blue mussel (Mytilus cf. platensis) in a shallow subtidal habitat of the South Shetland Islands in the Antarctic. This indicates a potential for coming invasions of the Antarctic ecosystem.
April 30. - 2020

Webinar on Heart Rate Measurements in Fish: Methods, Surgery, and Experimental Design

On May 7, 2020, Star-Oddi will host a webinar on heart rate measurements in fish. The webinar will focus on methods, surgery, and experimental design when working with heart rate loggers in fish. The workshop will take place through Zoom at 20:00-21:30 CEST/13:00-14:30 ET and is open to current users as well as anyone interested in heart rate measurements in fish.
April 30. - 2020

New Data Logger Release: Starmon Compass, with Heading-Tilt-Depth Sensors

Star-Oddi is proud to announce Starmon compass, a new compass heading data logger with high accuracy and a large memory. This robust logger is ideal for analysing heading direction and tilt movements on subsea gear and robotics.
March 25. - 2020

Heart Rate Loggers a Reliable Way to Determine Cardiac Breaking Points

As global warming increases it is becoming more and more important to understand how higher temperatures will affect both aquatic and terrestrial animals. A recent study, published by a research group from Rhodes University and the South African Institute for Aquatic Biodiversity.
March 23. - 2020

Star-Oddi Loggers Used in Virology Research for Over 15 Years

Since Star-Oddi launched the first data loggers in 1993 our loggers have been used in a wide variety of research. After the release of our first implantable temperature sensor in 2003, one of the most prominent fields of research has been in the field of virology, including vaccine development.
March 23. - 2020

Business as Usual at Star-Oddi

While the Covid-19 pandemic has created uncertainty for people around the world we want to assure our customers that services at Star-Oddi remain the same.
March 4. - 2020

Star-Oddi CTDs and multi sensors at Oceanology in London

Star-Oddi will be showcasing at the OI Oceanology International exhibition in London, December 1-3, 2020. If you are planning on going, then please be sure to visit us at stand C750.
December 30. - 2019

Coliform Mastitis Vaccines Show a Decline in Effectiveness During the Lactation Period in Cows

Coliform mastitis is a common issue in dairy cows that can affect both the wellbeing of the animal as well as the amount of milk it produces. A research group including scientists from Virginia Tech and DairyNZ Ltd. recently compared the effect of two commercially available J5 bacterin vaccines.
December 23. - 2019

Star-Oddi Supports the Big Blue Ocean Cleanup

Star-Oddi recently became a member of the Ocean Protection Project run by the Big Blue Ocean Cleanup.
December 19. - 2019

New, Smaller Activity Loggers

We recently released a smaller version of our popular activity loggers. Our activity loggers now come in two different sizes, milli and centi, and are suitable for a wide range of animal sizes.
December 9. - 2019

Varying Salinity Levels Affects Clam’s Activity and Behaviour

When trying to understand the effects of physiological stress on organisms living within the sediment, it is of great importance to recognize the relationship between the behaviour of these organisms and the fluctuating stressors, such as salinity in the surrounding waters. This is difficult to study and quantify, especially as these organisms, i.e. clams, are living deep in the sediments.
December 6. - 2019

Product News: Titanium Housing and Extended Depth Ranges for Starmon Loggers

To better meet the needs of a durable and robust device in demanding ocean environments, we now offer the Starmon TD (temp-depth) and Starmon tilt (acceleration-tilt-temp-depth) in titanium housing.
November 4. - 2019

Heart Rate Appears to be Unrelated to Nesting Behaviour in Male Smallmouth Bass

Cardiac function has been found to be a limiting factor when it comes to animals’ ability to cope with physiological challenges. Parental care is one such challenge which has not been widely assessed in wild animals.
October 31. - 2019

Majority of Atlantic Halibut is not Swimming Long Distances

Atlantic halibut (Hippoglossus hippoglossus) is widely distributed from the United States to Norway but is considered a “Species of Concern” in US waters. Not much is known about their movements and population, and in some years the abundance has been close to being below the detectability levels, according to NOAA Northeast Fisheries Science Center.
October 17. - 2019

Star-Oddi at OCEANS in Seattle

Star-Oddi will be showcasing at the OCEANS Conference in Seattle, October 28-30 2019. If you are going, then please be sure to visit us at booth #715.
October 11. - 2019

Better Understanding Sleep Homeostasis

Sleep is an essential part of our life and the longer we stay awake, the greater the urge to sleep becomes. Research has shown that following sleep deprivation we experience sleep that is longer and deeper than normal.
October 9. - 2019

Thermophysiology of Flying Squirrels

The Star-Oddi loggers are used in a variety of studies, including MSc projects. In one such project, Vanessa Hensley, a MSc student at The University of Maine, studied changes in body temperature of North American southern flying squirrels (Glaucomys volans).
October 7. - 2019

Preventing Logger Migration in the Abdominal Cavity

Data loggers can provide valuable information to many types of animal studies. As with anything else, though, the quality of the results is dependant on the correct use of the devices.
September 24. - 2019

Observing Hooking of Other Fish Does not Result in Avoidance of Future Hooking in Rainbow Trout

Recreational fishing has long been a popular pastime in industrial countries. In recent years more focus has been put on reducing the impacts of recreational fishing on fish populations.
September 20. - 2019

Water Temperature Affects Shark’s Reproduction Pattern

A study, carried out in Argentina, shows correlation between seawater temperature variations and changes in the plasma levels of three sex steroid hormones, related to reproduction of the narrownose smooth-hound shark (Mustelus schmitti).
July 5. - 2019

Star-Oddi at EOUC in Romania

On August 26-30, we will be exhibiting our loggers at the 12th European Ornithologists' Union Congress in Cluj-Napoca, Romania...
July 3. - 2019

Heart Rate Loggers Offer a Novel Way to Evaluate Stress Response and Welfare of Fish

Heart rate loggers offer a novel way to record physiological changes in various animal species. To date, Star-Oddi's leadless heart rate loggers have been used successfully in at least 20 fish species...
July 1. - 2019

Seasonal Changes in Wolverine Body Temperature and Activity Identified

Wolverines (Gulo gulo) are well adapted to the extreme conditions of their northern habitat. To learn more about the species’ ecophysiology researchers at Inland Norway University of Applied Sciences, Stockholm University...
June 21. - 2019

Multiple Stressors Can Lead to Increased Mortality for Farmed Fish

Welfare of fish in aquaculture is an important concern, as it is estimated to impact between 37 and 120 billion individuals every year, and is a growing concern for consumers, producers, interest groups and authorities...
June 19. - 2019

Meet Us at SEB in Sevilla in July

Star-Oddi will be exhibiting at the Society for Experimental Biology’s annual meeting 2019 in Sevilla, Spain on July 2-5...
June 17. - 2019

Sound Exposure Does Not Affect Long-term Behaviour and Physiology in Fish

Oil and gas industries using airguns for offshore seismic exploration add to globally increasing anthropogenic noise levels in the marine environment...
March 29. - 2019

Heart Rate Sensors Help with Analysis of Energy Expenditure

Wild animal activities and their internal processes are energetically costly. The amount of energy they can obtain and use is inevitably limited, which means they need to make compromises...
March 27. - 2019

Heart Rate and Temperature Loggers Used in Lumpfish

Star-Oddi's leadless heart rate and temperature loggers are being used to record valuable physiological data in lumpfish...
March 25. - 2019

A Visit from Outer Space

We at Star-Oddi got the honor of having Bjarni Tryggvason, the only Icelander who has traveled to outer space, come visit us a few weeks ago...
March 8. - 2019

Improved Heart Rate Loggers Allow Better Measurements of Slow Heart Rates

We have released an updated version of our DST milli-HRT and DST centi-HRT, leadless heart rate, and temperature loggers...
March 6. - 2019

Needle-free DNA Influenza Vaccine Shows Promising Results in Rhesus Macaques

Unlike conventional influenza vaccines, DNA vaccines can be produced rapidly for global coverage. This is a clear benefit should we be faced with an emerging influenza pandemic in the future...
March 4. - 2019

Japanese Black Bears Demonstrate Higher Heart Rate than Scandinavian Brown Bears During Hyperphagia

Hibernating bears go through hyperphagia each year to gain fat reserves before hibernation. In a recent study, heart rate measurements were used to compare the metabolic rate between two bear species...