Meet the Muskrat: Push-Up Champion of Cattail Marshes

Meet the Muskrat: Push-Up Champion of Cattail Marshes

Muskrats don’t cache food for the winter like a beaver so they must find fresh aquatic plants every day under the ice, though they’ll occasionally snack on small fish, clams, snails and turtles, too.

Retired scientist completes four-decade-long bibliographic work

Retired scientist completes four-decade-long bibliographic work

After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes.For all that the bibliography covers, Larry says new species of fish are still being discovered throughout New Zealand’s waters.

A Third of Shark and Ray Species May Face Extinction

A Third of Shark and Ray Species May Face Extinction

The health of “entire ocean ecosystems” and food security is in jeopardy, said Dulvy, a former co-chair of the shark specialist group of the International Union for Conservation of Nature (IUCN).The number of species of sharks, rays, and chimaeras, known together as chondrichthyan fishes, facing “a global extinction crisis” has more than doubled in less than a decade, according to the paper published September 6 in the journal Current Biology.

How Citizen Science Aids Horseshoe Crab Conservation

How Citizen Science Aids Horseshoe Crab Conservation

Females are bigger than males, and instead of mating then laying eggs, the females drop eggs in sandy nests and then males, which have attached themselves to the females, release sperm directly on top of the eggs, says Berlynna Heres, Florida Fish and Wildlife Commission researcher and lead author of the recent paper “Using Citizen Science to Track Population Trends in the American Horseshoe Crab.”.

The End of Trash Fish

The End of Trash Fish

My friend, a visiting fish biologist, was thrilled to catch species new to him, like chiselmouth, largescale sucker and northern pikeminnow.It’s time to put the term “trash fish” in the trash, where it belongs, and give these fish the respect (and management) they deserve.

50 Fish, 50 States: Freaks in the Hot Springs

50 Fish, 50 States: Freaks in the Hot Springs

© Matt Miller4 of 9Tilapia can now be caught in many warm springs, urban rivers and canals across the United States.Miller9 of 9African jewel cichlid, an exotic species common in Florida waters as well as in warm springs in the western United States.

New biodiversity memoir on the primnoid corals of New Zealand

New biodiversity memoir on the primnoid corals of New Zealand

A group of gorgonian octocorals that provide shelter for fish and invertebrates in the deep sea is the subject of NIWA’s latest Biodiversity Memoir.The NIWA Biodiversity Memoir series describe the taxonomy of New Zealand marine life, mostly for invertebrates such as sponges, corals, marine worms, molluscs, crustaceans and sea stars.

This Catfish Doesn’t Just Move on Land, It Reffles

This Catfish Doesn’t Just Move on Land, It Reffles

“It was so unlike any form of terrestrial locomotion seen in any animal,” says Noah Bressman, lead author of a new paper describing the behavior in the journal Ichthyology and Herpetology .

Bed Tricks, Cod, and the Hidden History of Catfishing

Bed Tricks, Cod, and the Hidden History of Catfishing

The numberless catfish who now course through social media , the ones who devastate lives with sophisticated online masquerades, exist to beguile and disturb.In this way, she is akin to Nev's catfish, Angela, who turned him from a defeated dropout to a man with a purpose.

The Feds Want You to Destroy This Sneaky Mussel’s Hiding Spot

The Feds Want You to Destroy This Sneaky Mussel’s Hiding Spot

That’s how Wesley Daniel, the database coordinator and a fisheries biologist at the USGS, recently learned that a zebra mussel had turned up on an imported moss ball in a Seattle Petco.

Research finds microplastics in fish muscle tissue

Research finds microplastics in fish muscle tissue

“This higher ingestion rate for flounder could be due to microplastics accumulating in marine sediments which makes up more of their diet compared to other species, or it could be because the flounder samples were all obtained from the Waitemata Harbour, which is closer to Auckland as a potential microplastic source,” she said.

Ocean Acidification Could Make Tiny Fish Lose Their Hearing

Ocean Acidification Could Make Tiny Fish Lose Their Hearing

“If you actually put your head underwater and take the time to listen, it's amazing what you'll hear,” Radford says.

50 Fish, 50 States: Whitefish & the End of the World as We Know It

50 Fish, 50 States: Whitefish & the End of the World as We Know It

© Jacob Karst I’m on a quest to catch a fish in each of the 50 U.S. states – and to use each adventure as a means to explore conservation, the latest fisheries research and our complicated connections to the natural world.

FAO - News Article: FAO welcomes €40 million from Germany to help farmers withstand shocks like COVID-19 and extreme climate events

FAO - News Article: FAO welcomes €40 million from Germany to help farmers withstand shocks like COVID-19 and extreme climate events

The funding from Germany's KfW development bank will support FAO's efforts to build the resilience of resource-poor producers, pastoralists and fishers in three of the world's most food insecure countries - the Democratic Republic of the Congo, Somalia and Yemen, work undertaken in partnership with other UN agencies.

Digitized Data Conserves Africa’s Great Lake Fisheries

Digitized Data Conserves Africa’s Great Lake Fisheries

“If you inadequately monitor these fisheries resources, successful and sustainable management cannot take place in a timely manner,” says Dr. Richard Ogutu-Ohwayo, who has studied and worked on Africa’s Great Lakes for over 40 years and is currently the Executive Director of AFLANET, the African Lakes Network.

How Healthy is the Ocean? Technology and Big Data Have the Answer

How Healthy is the Ocean? Technology and Big Data Have the Answer

How TNC is leading the way on applying technology to protect fisheries in the digital age Balancing a thriving fishing industry with ocean health presents a growing challenge.

Opportunities to Improve Fisheries Management through Innovative Technology and Advanced Data Systems

Opportunities to Improve Fisheries Management through Innovative Technology and Advanced Data Systems

Opportunities to Improve Fisheries Management through Innovative Technology and Advanced Data Systems.Yet, despite the proliferation of relevant consumer technology, integration of technologically advanced data systems into fisheries management remains the exception rather than the rule.

Can Freshwater Reserves Protect Tropical Fish Diversity?

Can Freshwater Reserves Protect Tropical Fish Diversity?

A recent article published in the journal Nature shows the potential for freshwater reserves by looking at a network of grassroots protected areas established in the Salween River basin of Thailand.

Is This a Fossilized Lair of the Dreaded Bobbit Worm?

Is This a Fossilized Lair of the Dreaded Bobbit Worm?

The researchers argue that this is a sign of struggle, preserved for millions of years in the fossil record: As a worm dragged a wriggling fish down into its lair, sediment would spill in to fill the void.

The Autonomous Saildrone Surveyor Preps for Its Sea Voyage

The Autonomous Saildrone Surveyor Preps for Its Sea Voyage

It is designed to spend months at sea mapping the seafloor with powerful sonar devices, while simultaneously scanning the ocean surface for genetic material to identify fish and other marine organisms swimming below.

These Adorable Fish Robots Form Schools Like the Real Thing

These Adorable Fish Robots Form Schools Like the Real Thing

6, eabd8668 (2021)Once the robots are aware of the positions of their peers, Berlinger and his colleagues can then feed this positional information into simple algorithms to guide the behavior of the seven Bluebots dropped into a tank.

NIWA heads to Antarctica for critical climate, ocean research

NIWA heads to Antarctica for critical climate, ocean research

The ship leaves Wellington and heads south with 20 science staff and 19 crew on board to learn more about key environmental and biological processes in the Ross Sea. Voyage leader and fisheries scientist Dr Richard O’Driscoll says this is the third in a series of voyages focused on providing baseline information about the Ross Sea Marine Protected Area (MPA) established in 2017.

50 Fish, 50 States: Cutthroat Connections

50 Fish, 50 States: Cutthroat Connections

I’m in Wyoming with my friend Brett Prettyman, a communications director for Trout Unlimited, to check out cutthroat fishing and conservation.

Dead Drift: Adding Salmon Carcasses to Streams

Dead Drift: Adding Salmon Carcasses to Streams

Denny lays the lifeless fish in the stream steps back and watches the dead drift toward a log jam.Fish biologist Lytle Denny plants salmon carcasses.Denny watches flies feed on the dead fish he just planted.

50 Fish, 50 States: Yellowstone’s Native Fish

50 Fish, 50 States: Yellowstone’s Native Fish

We essentially recognized that stocking westslope cutthroat and grayling in the Upper Gibbon was assisting their adaptation to climate change, and ensuring a future for native fish in the park for generations to come.”.

The Genome of Your Pet Fish Is Extremely Weird

The Genome of Your Pet Fish Is Extremely Weird

In both goldfish and the carp they were derived from, there are 25 chromosomes, but each fish carries 100 of them—instead of two copies, they have four, or rather two sets of two.

Cool Green Fall Book Review

Cool Green Fall Book Review

And Burke spends time understanding what motivates guides and their clients to destroy family ties and friendships in pursuit of fish.It’s a story in the tradition of Ahab and Santiago, and one of the more enjoyable fishing books I’ve read this year.

An Overlooked Threat to Freshwater Fisheries? Bowfishing

An Overlooked Threat to Freshwater Fisheries? Bowfishing

The authors, Jason Schooley and Dr. Dennis Scarnecchia, describe it as “a call to action for states to begin managing and monitoring bowfishing.” I also consider it a call for all of us who value native fish, whether as anglers or biodiversity advocates.

Fish Fence: Yard Décor Becomes Lionfish Control

Fish Fence: Yard Décor Becomes Lionfish Control

“From the start, we knew almost any structure would attract lionfish,” says Steve Gittings, NOAA National Marine Sanctuaries chief scientist.Attracting, and trapping, a fish as invasive as lionfish requires intense effort.

Fish Form Social Networks—and They're Actually Good

Fish Form Social Networks—and They're Actually Good

But scientists are uncovering a fascinating exception in coral reefs, not unlike the one Nemo called home: Here fish of various species band together, developing social networks exactly to survive and reproduce.

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