How fish got their spines
In the movie "A Fish Called Wanda," the villain Otto effortlessly gobbles up all the occupants of Ken`s fish tank. Reality, however, is more daunting. At least one unfortunate fan who re-enacted this scene was hospitalized with a fish stuck in the th.....»»
Fish in the upper Danube could be just as endangered in the future as in the past, but for different reasons
Rivers belong to the most threatened ecosystems on Earth. While many studies have projected climate change effects on species, little is known about the severity of these changes compared to historical alterations......»»
Researchers find having good neighbors and few top predators make predatory fish populations more resilient
A regime shift is gradually spreading through the archipelagos of the Swedish Baltic Sea coast, where shallow bays, previously dominated by pike and perch have one by one become dominated by one of their prey species, the three-spined stickleback......»»
Riverine fish numbers increase amidst environmental challenges
Surprising trends in the abundance and species richness of riverine fish across the globe have been unveiled in a new study......»»
Struggling seabirds thrown a lifeline by new commercial fishing ban in the North Sea—but it may not be enough
With their bright, orange feet and colorful beaks full of glistening fish, puffins are really charismatic seabirds. But puffin populations are in decline, largely due to their struggle to catch enough of these shiny fish: sandeels......»»
Scientists study the behaviors of chiral skyrmions in chiral flower-like obstacles
In nature, the collective motion of some birds and fish, such as flocks of starlings and shoals of sardines, respectively, can generate impressive dynamic phenomena. Their study constitutes active matter science, which has been a topic of great inter.....»»
Examining the range of adulterants that disrupt the hormones of fish and amphibians
The contraceptive pill is obviously not intended for fish and frogs. However, the hormones in the pill and other pharmaceuticals that are not completely broken down in sewage treatment plants can affect aquatic organisms......»»
Permaculture showed us how to farm the land more gently. Can we do the same as we farm the sea?
As wild fish and other marine species get scarcer from overfishing and demand for 'blue foods' grows around the world, farming of the ocean is growing rapidly. Fish, kelp, prawns, oysters and more are now widely farmed. The world now eats more farmed.....»»
More grizzlies in Idaho? Federal proposal could make it happen as Republicans push delisting
U.S. Fish and Wildlife Service officials have moved forward with plans to consider restoring grizzly bear populations to a part of Idaho where they haven't been seen regularly in decades, all while Idaho's governor and congressional delegation contin.....»»
Ultrasound can save fish in hydropower rivers
The phenomenon of gas supersaturation occurs when air enters water-filled hydropower inlets and is then exposed to high pressure. When this water is subsequently released into the river below the hydropower plant, it's almost like opening a bottle of.....»»
Microplastics found in Nile River"s tilapia fish
The Nile is one of the world's most famous rivers. It's also Africa's most important freshwater system. About 300 million people live in the 11 countries it flows through. Many rely on its waters for agriculture and fishing to make a living......»»
Southern pygmy perch starts coming back from the brink
An endangered fish has returned to Bendigo, Victoria, thanks to the help of Flinders University research in collaboration with local community groups......»»
Anglers battle huge fish on Florida beach — and reel in 1,200-pound surprise, video shows
Anglers battle huge fish on Florida beach — and reel in 1,200-pound surprise, video shows.....»»
Governments spend US$22 billion a year helping the fishing industry empty our oceans. This injustice must end
Overfishing has dire consequences for ocean health and for the millions of people who depend on fish for food and well-being. Globally, catch has been steadily declining since the 1990s. It's a trend that's likely to continue if we fail to act now......»»
Clownfish “count” white stripes to determine if an invader is friend or foe
They attacked similar fish with three stripes more often than those with one or two stripes. Enlarge / Clown anemonefish (Amphiprion ocellaris) seem to recognize different species of clownfish by counting white stripes. (credit:.....»»
New study reveals transformative power of aquaculture in Zambia
A new study led by the University of Stirling has revealed for the first time substantial benefits from adopting smallholder aquaculture for Zambian farmers. The research provides compelling evidence of how fish farming diversifies livelihoods and im.....»»
A 365-million-year-old fish with an extreme underbite showcases vertebrate diversity
Vertebrates are defined as all animals that possess a vertebral column, or backbone. Most living vertebrates also possess jaws, teeth and paired fins or limbs......»»
Trophy fishing, what"s the catch? Research finds declines in threatened fish and shark species
New research mapping long-term international trends in trophy fishing has found declines in records for threatened species, adding to a growing body of evidence that these types of fish and sharks are becoming increasingly scarce......»»
Experiment shows how predator mass mortality events affect food webs
Over the last century, die-offs of animal populations, known as mass mortality events (MMEs), have increased in frequency and magnitude. The scale of these events can be staggering: billions of dead fish, hundreds of thousands of dead mammals and bir.....»»
Q&A: Growth rings in fish give clues about fluctuations in climate over decades
A giant tree in your backyard can reveal stories about Earth's past climate. The concentric rings in the trunk, besides indicating the age of the tree, also shed light on the corresponding weather conditions during each year of the tree's life......»»
Turkey hails discovery of endangered leopard barbel fish
Turkey on Thursday hailed the unexpected discovery of the leopard barbel fish—listed as one of the most endangered in the world—in the Tigris River......»»