Biology Marine biology

In the latest in a series of studies showing how lab-raised fish differ from those raised in more natural environments, researchers found that medaka maintained in more natural settings ovulated earlier than those in the laboratory. These findings highlight the challenges of inferring natural behavior from that observed in the laboratory.

Ultrasonic tracking in Hiroshima Bay shows that male and female black sea bream move differently during the spawning season, offering a novel discovery into the reproductive behavior of a broadcast-spawning sparid fish in the wild.

As climate change intensifies harmful algal blooms worldwide, an international team led by Hiroshima University has developed a hybrid modeling approach that combines algal movement simulations, AI, and long-term monitoring data to sharpen forecasts of these bloom events—linked to environmental damage, mass fish die-offs, economic losses, and risks to human health.

Researchers have confirmed that golden sweeper fish steal the bioluminescence enzymes from their prey rather than produce them naturally.

A research team from City University of Hong Kong (CityUHK) recently collaborated with an international research team to publish a study revealing a correlation between global contamination of per- and polyfluoroalkyl substances (PFAS) in globally consumed edible marine fish and associated human health risks. The study found that consumers may be exposed to elevated levels of PFAS by consuming imported fish such as salmon, tuna, swordfish and cod — even in regions with low environmental pollution — thereby increasing food‑safety risks.

In the marine green alga Codium fragile, unusual carotenoids rapidly dissipate harmful chlorophyll triplet states, protecting the organism from light-induced damage. Using EPR spectroscopy and quantum chemical simulations, the study revealed the structural and electronic principles behind this photoprotection, offering insights for potential bio-inspired solar technologies.

Environmental conditions affect reproduction times in model fish

Ateneo biologists confirm invasive tinfoil barb in Laguna de Bay, warning it could disrupt native fish and harm local ecosystems.

Cyborg jellyfish, 3D collagen, Light, light go away, AI electronic nose, FLASHing cancer, Hydrogen storage in nanoscales & Can I drink this? Read all in the latest Editor's Choice

Near the eastern coast of Luzon, Philippines is the Benham Bank, an underwater seamount taller than the country's highest peak, Mt. Apo. Researchers from the University of the Philippines' Marine Science Institute discovered that it is a thriving ecosystem full of unique, untouched biodiversity.

Continuous 24-hour observations clarify time these fish engage in courtship, spawning

Jellyfish cyborgs may sound like something straight out of science fiction. But harnessing jellyfishes’ natural locomotion provides an efficient and environmentally-friendly means to monitor coral reefs, track oil spills or observe climate change. Now, a team from Tohoku University’s Department of Robotics has successfully modulated the swimming behavior of jellyfish using gentle electric pulses and generated a means of measuring it via AI. In doing so, they have created a gentle way to harness the powerful swimming mechanisms of jellyfish.

Anemonefish provision food they don’t eat to increase size of host sea anemones

Asteroid contains life’s building blocks, How fish detect color, Eco-friendly artificial muscles, Cell imaging gets a glow-up, Quantum gem, Healing skin with milkfish. Plus the 2025 Magazine is here, Read all in the latest Editor's Choice.

Field observations in natural river environment hold clues to easing model organisms’ life in labs

Because of climate change, harmful algal blooms are increasing in frequency and intensity. New science helps demystify the frequent harmful algal blooms in the Pacific off the coast of Chile by studying how algae species interact with each other and their environment.

Tsuyoshi Watanabe uses corals to understand the environment of the past and what it can tell us about people living then.

Zebrafish arrestins take turns inactivating key protein depending on intensity of light

Intimate insights into relationship between cost of gamete production and sexual selection

Hokkaido University and Japan Airlines Co., Ltd. signed a partnership agreement in June 2022 to address various social issues in Hokkaido and lead the creation of a sustainable society. As part of this collaboration, Hokkaido Air System Co., Ltd. will equip one of its aircraft with an external camera to commence the world's first regular flight-based red tide monitoring starting in the summer of 2025.

The two Pseudo-nitzschia species found in Luzon produce a dangerous neurotoxin that can cause severe sickness and permanent short-term memory loss.

A new scientific study reveals the complex relationship between the impacts of climate change and the adaptive responses of coastal fishers in the southern coasts of Japan.

Mirror, mirror, in my tank, who’s the biggest fish of all? Sigma bond spotted, Balancing cell membrane, Exploring quantum squeezing and Outbreak preparedness. Read all in the latest Editor's Choice.

Cleaner wrasse check their body size before fights due to having their own mental representation

Seaweed helps brain health, Whales in long-distance relationships, Jumpstarting male fertility, Demystifying black hole turbulence, Shrimp to steel & Mpox Resources. Read all in the latest Editor's Choice.

One of the smallest lifeforms may have the biggest impact on marine ecosystems. Researchers at Tohoku University modeled how climate change can affect phytoplankton – and our future.

Applying chaos theory to the movement of iconic arctic whales uncovered a 24-hour diving cycle and a long-range (~100 km) synchronization.

Commercially important marine fish and invertebrate species will likely shift northwards under a warmer climate.

Study shows fish may use punishment to promote help from their offspring

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