Fisheries News

September 30, 2023

Top Headlines

Theories About the Natural World May Need to Change to Reflect Human Impact

Sep. 25, 2023 — New research has validated at scale, one of the theories that has underpinned ecology for over half a century. In doing so, the findings raise further questions about whether models should be revised to capture human impacts on natural ...

Prehistoric Fish Fills 100 Million Year Gap in Evolution of the Skull

Sep. 20, 2023 — X-rays of an ancient jawless fish shows earliest-known example of internal cartilage skull, unlike that of any other known ...

Conservation in Shark Sanctuaries

Sep. 11, 2023 — Researchers are assessing the efficacy of shark sanctuaries by developing a modeling system that utilizes publicly accessible fishing data to determine shark catch and mortality rates. Their findings represent an important step in utilizing data ...

Scientists Find Good Places to Grow Long-Spined Sea Urchins, a Starting Point to Restore 'the Lawn Mowers of the Reefs'

Sep. 13, 2023 — Scientists are trying to raise as many urchins as possible because they eat algae that could otherwise smother reef ecosystems and kill corals. Researchers have identified algae on which larval sea ...

Latest Headlines

updated 1:09pm EDT

'A Crab Is Never Just a Crab'

Sep. 11, 2023 — A herring in the North Sea, a crab in the Wadden Sea or an anemone fish on a coral reef, ... biologists like to think in terms of individual species that all have their own place within food webs in ...

Coastal Fisheries Show Surprising Resilience to Marine Heat Waves

Aug. 31, 2023 — New research found that marine heat waves -- prolonged periods of unusually warm ocean temperatures -- haven't had a lasting effect on the fish communities that feed most of the world. The finding is ...

Stormwater Biofiltration Increases Coho Salmon Hatchling Survival

Aug. 24, 2023 — A relatively simple, inexpensive method of filtering urban stormwater runoff dramatically boosted survival of newly hatched coho salmon in an experimental study. That's the good news for the ...

This Fish Doesn't Just See With Its Eyes -- It Also Sees With Its Skin

Aug. 22, 2023 — Without a mirror, it can be hard to tell if you're blushing, or have spinach in your teeth. But one color-changing fish has evolved a clever way to keep watch on the parts of itself that lie outside ...

3D-Printed Vegan Seafood Could Someday Be What's for Dinner

Aug. 14, 2023 — More mock seafood options are needed because of unsustainable fishing and aquaculture practices, which can harm the environment. Now, researchers have a new approach for creating desirable vegan ...

Protected Sex: Grouper Mating Calls in Marine Managed Areas

Aug. 9, 2023 — Groupers produce distinct sounds associated with courtship, territoriality or reproduction. An autonomous mobile wave glider and passive acoustics were deployed to survey two marine protected areas ...

Top Fish Predators Could Suffer Wide Loss of Suitable Habitat by 2100 Due to Climate Change

Aug. 9, 2023 — A study of 12 species of highly migratory fish predators -- including sharks, tuna, and billfish such as marlin and swordfish -- finds that most of ...

Land-Sea Relationship Is Major Driver of Coral Reef Health Outcomes

Aug. 9, 2023 — New research indicates that mitigating both local land and sea-based human impacts, especially in terms of pollutants and over-fishing, provides coral reef ecosystems with the best opportunity to ...

Researchers Find Evolutionary Adaption in Trout of Wyoming's Wind River Mountains

July 31, 2023 — Scientists found that trout from lakes stocked decades ago in the Wind River Mountains have higher numbers of gill rakers, which are bony or ...

Billions in Conservation Spending Fail to Improve Wild Fish Stocks in Columbia Basin

July 28, 2023 — Four decades of conservation spending totaling more than $9 billion in inflation-adjusted tax dollars has failed to improve stocks of wild salmon and ...

Earlier Headlines

Summaries
Headlines

Shark Shock: Scientists Discover Filter-Feeding Basking Sharks Are Warm-Bodied Like Great Whites

July 20, 2023 — Approximately 99.9% of fish and shark species are 'cold-blooded', meaning their body tissues generally match the temperature of the water they swim in -- but researchers have just ...

Food Size Matters

July 19, 2023 — Prey size and risk of predation are strongly related to the medium-sized Daphnia -- a small, planktonic crustacean -- targeted by aquatic insects and fish. This phenotypic plasticity has been shown ...

Ocean Animals Vacate Areas Both Around and Outside Deep-Sea Mining Operations

July 14, 2023 — In 2020, Japan performed the first successful test extracting cobalt crusts from the top of deep-sea mountains to mine cobalt -- a mineral used in electric vehicle batteries. Not only do directly ...

Multiple Ecosystems in Hot Water After Marine Heatwave Surges Across the Pacific

July 13, 2023 — Rising ocean temperatures are sweeping the seas, breaking records and creating problematic conditions for marine life. Unlike heatwaves on land, periods of abrupt ocean warming can surge for months ...

Plastic Pollution on Coral Reefs Increases With Depth and Mostly Comes from Fishing Activities

July 12, 2023 — Researchers reveal the extent of plastic pollution on coral reefs, finding that debris increases with depth, largely stems from fishing activities, and is correlated with proximity to marine ...

Warmer Ocean Temperatures Increase Risk of Salmon Bycatch in Pacific Hake Fishery

July 12, 2023 — Rates of Chinook salmon bycatch in the Pacific hake fishery rise during years when ocean temperatures are warmer, a signal that climate change and increased frequency of marine heatwaves could lead ...

Deciphering Fish Species Interactions for Climate Change Insights

July 11, 2023 — A team has developed a technique to study how different fish species interact with each other in a coastal region, a breakthrough that helps explain the complex relationships among marine species and ...

Can Using Biodegradable Fishing Gear Help Reduce the Cost of Ghost Fishing?

July 11, 2023 — New research has found that the design of biodegradable fishing gear needs to improve if it is to help address the environmental and economic impacts of 'ghost ...

Asian Clams' Spread in Columbia River Warns of Worse Invaders

July 6, 2023 — The invasive Asian clam is more common in the lower Columbia River than its native habitat of southeast Asia, according to a study of the clam's abundance in the river. The findings don't ...

Warmer and Murkier Waters Favor Predators of Guppies, Study Finds

July 4, 2023 — Changes in water conditions interact to affect how Trinidadian guppies protect themselves from predators, scientists have ...

Boom! Detecting Gregarious Goliath Groupers Using Their Low-Frequency Pulse Sounds

June 28, 2023 — From growls to booms, whales, fish and crustaceans all produce sounds. Selecting the gregarious Goliath grouper, researchers deployed a novel automated detector and localization model to find ...

Are Viruses Keeping Sea Lice at Bay in Wild Salmon?

June 22, 2023 — More than 30 previously unknown RNA viruses in sea lice have been identified. Sea lice are parasitic copepods (small crustaceans) found in many fresh and saltwater habitats, and have been implicated ...

Rain Gardens Could Save Salmon from Toxic Tire Chemicals

June 21, 2023 — Specially designed gardens could reduce the amount of a toxic chemical associated with tires entering our waterways by more than 90 per cent, new research ...

Study Shows Ancient Alaskans Were Freshwater Fishers

June 16, 2023 — A scientific team has discovered the earliest-known evidence of freshwater fishing by ancient people in the Americas. The research offers a glimpse at how early humans used a changing landscape and ...

Why Certain Fish Are Left Off the Hook

June 8, 2023 — A new study found that while a piece of legislation designed to foster the sustainability of marine fisheries is sometimes blamed for being too stringent -- leading to what some politicians call ...

Biodegradable Plastic from Sugar Cane Also Threatens the Environment

June 1, 2023 — Plastic made from cane sugar also threatens the environment. Researchers from the University of Gothenburg have found that perch change their behavior when exposed to so-called ...

Overfishing Linked to Rapid Evolution of Codfish

May 31, 2023 — The overfishing of codfish spanning the second half of the 20th century indicates that human action can force evolutionary changes more quickly than widely believed, according to a new ...

Protecting Large Ocean Areas Doesn't Curb Fishing Catches

May 31, 2023 — In the first-ever 'before and after' assessment of the impact of establishing Mexico's Revillagigedo National Park on the fishing industry, a team of US and Mexican researchers found ...

New Use for A.I.: Correctly Estimating Fish Stocks

May 18, 2023 — A newly published artificial intelligence (AI) algorithm is allowing researchers to quickly and accurately estimate coastal fish stocks without ever entering the ...

Water Warming Study Shows Unexpected Impact on Fish Size

May 9, 2023 — The theory that water-breathing animals such as fish will shrink due to global warming has been called into question by a new ...

Thursday, July 20, 2023