Freshwater Fish News

COLOMBO — Located in the suburbs of Sri Lanka’s biggest city, Colombo, the picturesque Thalangama Lake is plagued by at least two invasive predatory fish species that are contributing to…

Worsening Amazon floods with reduced fish catches, along with government policies that shred welfare programs and encourage deforestation, are increasing food insecurity in riverine communities.

Pixaim is one of the remaining quilombos on the Atlantic coast, an Afro-Brazilian settlement already gravely impacted by upstream dams. Now climate change could doom it.

A survey of 40,000 existing and 3,700 planned dams finds that the structures could fragment fish habitat in the Amazon, Niger, Congo, Salween and Mekong river systems by 25% or more.

The extinction of the Chinese paddlefish, announced by researchers in January 2020, is entirely the result of human impacts on the Yangtze River over the last 50 to 60 years.…

In 2003, researchers from the Chinese Academy of Fishery Sciences captured, tagged and released a female Chinese paddlefish (Psephurus gladius) that had accidentally been caught in the Yangtze River. In…

There are now three recognized species of electric eel after two new species were described to science in a paper published in Nature Communications this week. One of the new…

A first-of-its-kind analysis of Earth’s longest rivers found that they have been severely degraded by human activities and suggests ways for countries to maintain and restore rivers around the world.…

The dourada, one of the Amazon’s goliath catfish species, plus other commercially valuable migratory fish stocks crashed after Santo Antônio and Jirau dams were built, say researchers.

“Why on earth would anyone give up working on tigers to focus on freshwater fish?” is the question I am asked most frequently since becoming the Executive Director of Shoal,…

In January 2018, the Cofán indigenous people of Sinangoe, Ecuador, discovered several machines mining the Aguarico riverbed near Cayambe Coca National Park. This came as a surprise to them because…

JAKARTA — Officials in Indonesia have released a predictive calendar they hope will give fish farmers in the country’s largest lake a heads-up on water conditions that have previously killed…

YOGYAKARTA, Indonesia — Dressed in a hazmat suit with boots, gloves and a mask, Prigi Arisandi waded into a river north of Yogyakarta, a city in the center of the…

Selective logging has long been considered the lesser evil compared to clear-cutting when it comes to habitat preservation. But a new study adds to a growing chorus of concern that…

Tomorrow, April 21, marks World Fish Migration Day. Many animal species make lengthy migrations as one-time or annual portions of their life cycle. Whereas journeys by birds between North and…

DENPASAR, Indonesia — Tilapia is a mainstay of Balinese cuisine, but hundreds of thousands of the freshwater fish choke to death regularly in the resort island’s largest lake, for reasons…

Madagascar is known as an ark for biodiversity that's found nowhere else on the planet. Unfortunately, it's also known for the bevy of threats that those distinctive species that live…

A new study demonstrates that the extraordinary breadth of fish species found in streams and tributaries of the Amazon isn’t afforded much protection from the effects of agriculture under current…

Trump’s 2018 budget, if adopted, threatens to kill already precarious Northwest salmon fisheries — crippling the local economies of US and Canadian communities and tribal nations.

Over at the California Water Blog, UC Davis fish biologists Peter Moyle and Jason Baumsteiger observe that two species of California fish — one small and the other big —…

Amidst the grim predictions concerning climate change, a newly published study in the Proceedings of the National Academy of Sciences reveals that certain ecosystems may be more resistant to warming…

ish kills, mercury contamination, the extinction of known aquatic species (along with others still not known to science), plus the physical and economic ruin of indigenous and traditional river communities.…

ven before the controversial Belo Monte hydroelectric power station — the third largest in the world — began operation in April of this year, the harm the project was doing…

ncovering the history of human habitation in the Amazon rainforest is challenging. The humid, tropical climate and dynamic forest landscape, where organic materials decay rapidly, can be an enemy of…

singular Amazonian catfish is capable of an amazing feat: hidden from human eyes, the species travels vast distances over its lifetime, making a round trip covering more than 8,000 kilometers…

magine a fish isolated in an Amazonian lake — part of the vast freshwater ecosystem of the Amazon basin, an ever-changing network of rivers, lakes and floodplains that extends to…

or the past ten years Kenya and Uganda have been engaged in a fierce tussle over Migingo Island in Lake Victoria. A low slab of rocky land less than the…

A coalition of conservationists, recreational fishers and farmers want Australia’s state and federal governments to get rid of European carp, or “Australia’s worst freshwater pest”, from Murray river, according to…