Fish News

April 24, 2024

Top Headlines

Why Can Zebrafish Regenerate Damaged Heart Tissue, While Other Fish Species Cannot?

Apr. 18, 2024 — A heart attack will leave a permanent scar on a human heart, yet other animals, including zebrafish, can clear cardiac scar tissue and regrow damaged muscle as adults. Biologists sheds new light on ...

Fourteen Years After the Gulf of Mexico Oil Spill, Endemic Fishes Face an Uncertain Future

Apr. 18, 2024 — The 2010 Gulf of Mexico Deepwater Horizon oil spill, the largest accidental spill in history, released almost 100 million gallons of oil, causing significant pollution. A decade later, its long-term ...

Huge Database Gives Insight Into Salmon Patterns at Sea

Apr. 16, 2024 — A massive new analysis of high seas salmon surveys is enhancing the understanding of salmon ecology, adding details about where various species congregate in the North Pacific Ocean and their different temperature tolerances. The project integrates ...

Where Have All the Right Whales Gone?

Apr. 12, 2024 — Marine researchers have mapped the density of one of the most endangered large whale species worldwide, the North Atlantic right whale, using new data to help avoid right whales' harmful exposure to commercial fisheries and vessel strikes. The ...

Latest Headlines

updated 10:53pm EDT

Tropical Fish Are Invading Australian Ocean Water

Apr. 23, 2024 — A study of shallow-water fish communities on rocky reefs in south-eastern Australia has found climate change is helping tropical fish species invade temperate Australian ...

PFAS Exposure from High Seafood Diets May Be Underestimated

Apr. 12, 2024 — A study suggests that people with diets high in seafood may face a greater risk of exposure to PFAS -- the family of human-made toxins known as 'forever chemicals' -- than previously thought. The ...

Mapped: 33 New Big Game Migrations Across American West

Apr. 11, 2024 — A new set of maps that document the movements of ungulates was published today in the fourth volume of the Ungulate Migrations of the Western United States. The maps in this collaborative report ...

Scientists Create Octopus Survival Guide to Minimize Impacts of Fishing

Apr. 10, 2024 — Scientists have created a step-by-step aging guide for octopus to ensure fisheries remain sustainable, protecting the longevity of this ancient animal while guaranteeing the world doesn't go ...

3D Mouth of an Ancient Jawless Fish Suggests They Were Filter-Feeders, Not Scavengers or Hunters

Apr. 10, 2024 — Early jawless fish were likely to have used bony projections surrounding their mouths to modify the mouth's shape while they collected food. Experts ...

Cold-Affinity Algae Species Are Gradually Being Replaced by Warm-Affinity Ones Off the Coast of Biscay

Apr. 10, 2024 — A study has analyzed the impact of the rise in sea surface temperature on macroalgae communities over the last four decades. Points at various depths ...

What's Quieter Than a Fish? A School of Them

Apr. 9, 2024 — Swimming in schools makes fish surprisingly stealthy underwater, with a group able to sound like a single fish. Engineers working with a high-tech simulation of schooling mackerel offer new insight ...

Impact of Climate Change on Marine Life Much Bigger Than Previously Known

Apr. 9, 2024 — Fish and invertebrate animals are far more affected by warmer and more acidic seawater than was previously known. The big gain of the new method is that more details become known about effects of ...

Fish Species That Move Rapidly Toward the Poles Due to Global Warming Decline in Abundance, Study Finds

Mar. 18, 2024 — A new study has found a decline in the abundance of marine fish species that move rapidly toward the poles to escape rising sea temperatures. The ...

Adult Fish Struggle to Bounce Back in Marine Protected Areas

Apr. 4, 2024 — Many marine protected areas are falling short of their most basic purpose: to rebuild struggling fish populations. In a new study, scientists looked at the age breakdown of reef fish in marine ...

Reproductive Success Improves After a Single Generation in the Wild for Descendants of Some Hatchery-Origin Chinook Salmon

Apr. 16, 2024 — Researchers who created 'family trees' for nearly 10,000 fish found that first-generation, wild-born descendants of hatchery-origin Chinook salmon in an Oregon river show improved ...

In the Evolution of Walking, the Hip Bone Connected to the Rib Bones

Apr. 5, 2024 — A new reconstruction of the 375-million-year-old fossil fish Tiktaalik -- a close relative of limbed vertebrates -- used micro-CT to reveal bones still embedded in matrix. The reconstruction shows ...

eDNA Methods Give a Real-Time Look at Coral Reef Health

Apr. 5, 2024 — The study underscores the crucial role of microbes in maintaining coral reef health, akin to the human gut microbiome. Hurricanes and disease outbreaks affect coral reef water microbial communities, ...

What Four Decades of Canned Salmon Reveal About Marine Food Webs

Apr. 4, 2024 — Researchers have shown that levels of anisakid worms -- a common marine parasite -- rose in two salmon species in the Gulf of Alaska and Bristol Bay over a 42-year period. The team discovered this by ...

Scientists Warn: The Grey Seal Hunt Is Too Large

Mar. 27, 2024 — Researchers warn that today's hunting quotas of about 3,000 animals pose a risk to the long-term survival of the grey seal in the Baltic Sea. The conclusions of this new study are based on ...

Researchers Find Energy Development and Tree Encroachment Impact Wyoming Pronghorn

Mar. 26, 2024 — While Wyoming is home to some of North America's most abundant populations of pronghorn that have largely been stable in recent years, a new analysis shows that many herds are experiencing ...

How Many Fish Constitute a School?

Mar. 25, 2024 — Physicists are also interested in fish -- above all when they are researching the formation of structures. A research team has examined the schooling behavior of zebra danio (Danio rerio, also known ...

Rays Were More Diverse 150 Million Years Ago Than Previously Thought

Mar. 21, 2024 — Scientists have explored the puzzling world of rays that lived 150 million years ago and discovered a previously hidden diversity -- including a new ray species. This study significantly expands the ...

Entanglements of Humpback Whales in Fish Farms Rare -- And Naivety Could Be to Blame

Mar. 21, 2024 — The first study of humpback whale entanglements in B.C. aquaculture facilities found eight over 13 years, with the curiosity of young whales a potential contributing ...

Forest, Stream Habitats Keep Energy Exchanges in Balance, Global Team Finds

Mar. 21, 2024 — Forests and streams are separate but linked ecosystems, existing side by side, with energy and nutrients crossing their porous borders and flowing back and forth between them. For example, leaves ...

Killer Whales Use Specialized Hunting Techniques to Catch Marine Mammals in the Open Ocean

Mar. 20, 2024 — Killer whales foraging in deep submarine canyons off the coast of California represent a distinct subpopulation that uses specialized hunting techniques to catch marine mammals, researchers ...

Fish Fed to Farmed Salmon Should Be Part of Our Diet, Too, Study Suggests

Mar. 20, 2024 — Scientists found that farmed salmon production leads to an overall loss of essential dietary nutrients. They say that eating more wild 'feed' species directly could benefit our health while ...

Even Inactive Smokers Are Densely Colonized by Microbial Communities

Mar. 15, 2024 — Everything is everywhere -- under certain conditions microbial communities can grow and thrive, even in places that are seemingly uninhabitable. This is the case at inactive hydrothermal vents on the ...

Diverse Habitats Help Salmon Weather Unpredictable Climate Changes

Mar. 14, 2024 — Restored salmon habitat should resemble financial portfolios, offering fish diverse options for feeding and survival so that they can weather various conditions as the climate changes, a new study ...

Sleep-Wake Rhythm: Fish Change Our Understanding of Sleep Regulation

Mar. 14, 2024 — Researchers have discovered that some fish -- unlike humans -- do not need orexin to stay awake. This molecule was thought to be necessary for normal wake and sleep rhythms in vertebrates. Humans ...

Marine Heat Waves Disrupt the Ocean Food Web in the Northeast Pacific Ocean

Mar. 13, 2024 — Marine heat waves in the northeast Pacific Ocean create ongoing and complex disruptions of the ocean food web that may benefit some species but threaten the future of many others, a new study has ...

Sonic Youth: Healthy Reef Sounds Increase Coral Settlement

Mar. 13, 2024 — Healthy coral reefs have rich soundscapes, full of the croaks, purrs, and grunts of various fishes and the crackling of snapping shrimp. Larval coral uses these sounds as cues to identify the best ...

History Repeats as Coral Bay Faces Mass Loss of Coral and Fish Life

Mar. 12, 2024 — A perfect storm of environmental factors has seen a monumental loss of fish and coral life at a popular area of Ningaloo Reef in Western Australia's Gascoyne region -- however research into the ...

Anemonefish Are Better Taxonomists Than Humans

Mar. 11, 2024 — Scientists reveal new lineages of giant sea anemones in Japan and their surprising associations with ...

Good News for Coral Reef Restoration Efforts: Study Finds 'Full Recovery' of Reef Growth Within Four Years

Mar. 8, 2024 — While the majority of the world's reefs are now under threat or even damaged potentially beyond repair, a new study offers some encouraging news: efforts to restore coral reefs not only increase ...