Senegal looks to aquaculture as fish stocks dwindle
The Senegalese town of Kayar sits on the doorstep of the vast Atlantic Ocean, but it is a farm located further inland that provides part of its fish production......»»
Feces from coral-eating fish may act as "probiotics" for reefs
Until recently, fish that eat coral—corallivores—were thought to weaken reef structures, while fish that consume algae and detritus—grazers—were thought to keep reefs healthy. But scientists have discovered that feces from grazers leave large.....»»
Senegal harvests first experimental homegrown wheat
With the whir of a mower, under a clear blue sky, Senegalese researchers have begun harvesting a crop of experimental homegrown wheat, the latest step in a years-long effort to reduce reliance on imports......»»
Growing rice and raising animals together creates a synergistic ecosystem, but is underutilized
A traditional Southeast Asian rice farming technique of raising fish and other aquatic livestock in paddies has potential to meet global food demands, improve the health of both people and the environment and earn producers an additional $150 billion.....»»
Holographic microscopy shows potential as a red tide warning system
Red tides, caused by Karenia brevis blooms, are a recurring problem in the coastal Gulf of Mexico. The organism, Karenia brevis, produces toxins that can cause fish kills, respiratory irritation in humans and cause death in sea turtles, dolphins, man.....»»
Can AI be used to predict ocean waves?
The ability to model and predict the size of ocean waves is important for the fishing industry from both logistic and economic perspectives. Essentially, the bigger the waves, the more expensive the fish. Existing ocean wave models use numerical meth.....»»
As glaciers retreat, new streams for salmon
Insects move in, alders and willows spring up, and spawning fish arrive in thousands. Enlarge / Wolf Point Creek is likely the most-well-studied glacier-fed stream in the world. (credit: Elizabeth via Flickr (CC BY-NC 2.0)).....»»
After spinal cord injury, kinesthetic sense helps restore movement, model suggests
For nearly 50 years, a jawless fish called the lamprey has interested scientists because of its remarkable ability to recover from spinal cord injuries. A new study reveals a possible technique lampreys may use to swim again, despite sparse neural re.....»»
Hunters and Anglers Are Critical to Climate Change Action
Tens of millions of people who hunt and fish are witnesses to climate change, and they are a critical constituency in efforts to reduce global warming.....»»
Study investigates effects of isoeugenol on fish
Isoeugenol is a fragrance contained in plants that is very commonly used as an anesthetic in fish farming facilities and aquaculture. A research team at the Department of Animal Physiology at the University of Bayreuth has now investigated the mode o.....»»
Insects have more complex immune systems than previously thought
Humans and other vertebrates (like mammals, birds, fish, reptiles and amphibians) have complex, multi-faceted immune systems that protect us from a constant barrage of bugs and other nasties. But what about insects and other invertebrates?.....»»
Fish diversity documented in Switzerland"s rivers
In a major survey of Swiss rivers and streams, more than 50 different fish species were recorded. For the first time, more than one species was also found in the case of smaller types of fish such as the bullhead. In Progetto Fiumi, riverine fish wer.....»»
Scientists discover hidden crab diversity among coral reefs
The Indo-West Pacific is the largest, most biodiverse marine ecosystem on Earth, and many of the species it supports have comparably wide ranges. Writing in The Origin of Species, Charles Darwin noted that "… many fish range from the Pacific into t.....»»
Study finds fish assess misinformation to avoid overreaction
Fish can adjust their sensitivity to the actions of others—such as fleeing due to a false alarm—to reduce the risk of responding to misinformation, according to a new study. Other animals, including humans, may also have these decision-making mec.....»»
Global review throws light on gender-based violence in fisheries
A new study published today in Fish and Fisheries argues that gender-based violence (GBV) cannot be separated from other actions taken to achieve equitable social outcomes through fisheries management......»»
Feel your pain? Even fish can show they care
Our capacity to care about others may have very, very ancient origins, a new study suggests......»»
Climate change threatens global fisheries
The diet quality of fish across large parts of the world's oceans could decline by up to 10% as climate change impacts an integral part of marine food chains, a major study has found......»»
Eels have fascinated us for ages—now we need to stop eating them, says researcher
Few animals have sparked humanity's curiosity as much as the eel (Anguilla anguilla). Until a recent past, this slimy, slippery, snake-shaped, incredibly agile fish inhabited virtually every body of water in Europe and Northern Africa, often in mind-.....»»
How fisheries threaten seals and sea lions in South America
Seals, sea lions, and fur seals are at risk from interactions with fisheries and aquaculture, as they can become entangled in nets or cages, and drown. In a study published in Mammal Review, investigators analyzed research from the last 25 years on o.....»»
Researchers develop portable color-changing food spoilage sensor
When foods like fish, meat, and cheese decompose, they release a variety of low molecular weight organic nitrogen compounds known as biogenic amines (BAs). While the body uses BAs in small amounts in processes like hormone synthesis, ingesting large.....»»
North Sea cod are getting smaller—can we reverse that?
Fishing wreaks havoc on North Sea cod evolution; long-term planning can help. Enlarge (credit: Anton Petrus) Generation over generation, catch after catch, fishing changes fish evolution. This phenomenon, called fisherie.....»»