Fish News

April 29, 2024

Top Headlines

These Giant, Prehistoric Salmon Had Tusk-Like Teeth

Apr. 24, 2024 — Oncorhynchus rastrosus, a giant species of salmon that lived in the North American Pacific Northwest a few million years ago, sported a pair of front teeth that projected out from the sides of its mouth like tusks, according to a new ...

Fixin' to Be Flexitarian: Scrap Fish and Invasive Species Can Liven Up Vegetables

Apr. 29, 2024 — Greening the way we eat needn't mean going vegetarian. A healthy, more realistic solution is to adopt a flexitarian diet where seafoods add umami to 'boring' vegetables. A gastrophysicist puts ...

Curiosity Promotes Biodiversity

Apr. 25, 2024 — Cichlid fishes exhibit differing degrees of curiosity. The cause for this lies in their genes, as reported by researchers. This trait influences the cichlids' ability to adapt to new ...

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 ...

Latest Headlines

updated 5:53pm EDT

Unveiling the Lionfish Invasion in the Mediterranean Sea

Apr. 25, 2024 — Researchers have published a comprehensive study on the invasion of lionfish in the Mediterranean Sea, highlighting a rapid spread and the potential ecological impacts. The research shows the ...

Could Fishponds Help With Hawaii's Food Sustainability?

Apr. 26, 2024 — Indigenous aquaculture systems in Hawaii, known as loko i'a or fishponds, can increase the amount of fish and fisheries harvested both inside and outside of the pond. Today, aquaculture supplies less ...

Scientists Replace Fishmeal in Aquaculture With Microbial Protein Derived from Soybean Processing Wastewater

Apr. 25, 2024 — Scientists have successfully replaced half of the fishmeal protein in the diets of farmed Asian seabass with a 'single cell protein' cultivated from ...

Unveiling the Mysteries of Cell Division in Embryos With Timelapse Photography

Apr. 24, 2024 — The beginning of life is shrouded in mystery. While the intricate dynamics of mitosis is well-studied in the so-called somatic cells -- the cells ...

Herring Arrives Earlier in the Wadden Sea Due to Climate Change

Apr. 25, 2024 — Due to the changing climate, young herring arrive in the Wadden Sea earlier and earlier in ...

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 ...

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 ...

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 ...

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 ...

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 ...

Helping Migrating Salmon Survive Mortality Hot-Spot

Apr. 19, 2024 — Researchers used acoustic telemetry to tag and track coho on their ...

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 ...

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 have used CT scanning techniques to build up ...

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 were investigated in a location off the coast of ...

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 ...

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 ...

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 ...

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

Apr. 4, 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 researchers explain that many animal species are ...

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 ...