Current Catfish News and Events

Current Catfish News and Events, Catfish News Articles.
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Diet of pre-Columbian societies in the Brazilian Amazon reconstructed
A new study shows that hunting and agroforestry management, and not fishing, were the foundations of subsistence economy for pre-Columbian societies in the Amazon coast of Brazil. (2020-10-06)

Wels catfish genome assembled
By deciphering the genetic code of the barbelled giant, scientists expect to better understand the secrets of the wels catfish's exceptionally rapid growth, enormous appetite and longevity. (2020-09-22)

Dams exacerbate the consequences of climate change on river fish
A potential response of river fish to environmental changes is to colonize new habitats. But what happens when dams and weirs restrict their movement? And are native and alien species similarly affected? Researchers from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) and the Spanish University of Girona (UdG) have addressed these questions in a recent study. (2020-09-14)

Fish in the Sahara? Yes, in the early Holocene
Catfish and tilapia make up many of the animal remains uncovered in the Saharan environment of the Takarkori rock shelter in southwestern Libya, according to a study published Feb. 19, 2020, in the open-access journal PLOS ONE by Wim Van Neer from the the Natural History Museum in Belgium, Belgium and Savino di Lernia, Sapienza University of Rome, Italy, and colleagues. (2020-02-19)

Scientists develop molecular 'fishing' to find individual molecules in blood
Like finding a needle in a haystack, Liviu Movileanu can find a single molecule in blood. (2020-02-15)

Are sinking soils in the Everglades related to climate change?
Soils releasing carbon as gas lead to challenges on valuable farmland (2020-01-15)

Study shows invasive blue catfish can tolerate high salinities
A new study by researchers at the Virginia Institute of Marine Science warns that blue catfish -- an invasive species in several Chesapeake Bay tributaries -- tolerate salinities higher than most freshwater fishes, and thus may be able to expand their range downstream into mainstem Chesapeake waters, and from there into new Bay tributaries and even Delaware Bay. (2019-11-05)

Poor water conditions drive invasive snakeheads onto land
In a new study published Oct. 21, 2019 in the peer-reviewed journal Integrative Organismal Biology, Wake Forest researcher Noah Bressman reported for the first time the water conditions that could drive snakeheads onto land. (2019-10-22)

The hidden ark: How a grassroots initiative can help save fish from extinction
Freshwater fish are the most threatened vertebrate group, and species are disappearing faster than scientists can describe them. A new study shows that aquarium hobbyists can play an important role in freshwater fish conservation by filling in the gaps left by the scientific community and conservation organizations. (2019-10-01)

Ancient fish ponds in the Bolivian savanna supported human settlement
A network of fish ponds supported a permanent human settlement in the seasonal drylands of Bolivia more than one thousand years ago, according to a new study published May 15, 2019 in the open-access journal PLOS ONE by Gabriela Prestes-Carneiro of Federal University of Western Para, Brazil, and colleagues. (2019-05-15)

Catfish use complex coordination to suck in prey
Using a powerful X-ray-based technology, Brown University scientists tracked catfish as they caught and swallowed prey to develop a precise understanding of the complex set of motions required to create the suction necessary to eat. They found that many of the bones in the catfish skull work in a coordinated manner to catch food. However, the bones move more independently when the fish swallow. (2019-04-16)

Six new species of hideously adorable tentacle-nosed catfish discovered in Amazon
Scientists just discovered six new species of bristlenose catfish in the Amazon. In an evolutionary move that takes 'catfishing' to a whole new, kind of sweet level, the males have tentacled faces to attract females. The tentacles look like eggs, and when females see a male with a tentacled face, they see a good potential father. The discovery of these new species might pave the way for conservation work in the Amazon. (2019-02-06)

Envisioned 'octopus farms' would have far-reaching and detrimental environmental impact
Commercial octopus farming, currently in developmental stages on multiple continents, would have a negative ripple effect on sustainability and animal welfare, concludes a team of researchers in a newly published analysis. (2019-01-24)

Scientists identify 66 alien species that pose greatest threat to European biodiversity
Scientists have identified 66 alien plant and animal species, not yet established in the European Union, that pose the greatest potential threat to biodiversity and ecosystems in the region. The research, led by the UK's Centre for Ecology & Hydrology, lists the invasive species that are likely to arrive and spread in the region over the next decade. (2018-12-13)

Asian catfish genome decoded
For the first time, scientists decipher the entire genome of the striped catfish, paving the way for better breeding of the critical commercial species. (2018-10-24)

Magnetic gene in fish may someday help those with epilepsy, Parkinson's
An aquarium fish that senses the Earth's magnetic field as it swims could help unlock how the human brain works and how diseases such as Parkinson's and other neurological disorders function. Michigan State University scientists are the first to discover a navigational gene in glass catfish called the electromagnetic-perceptive gene, or EPG, that responds to certain magnetic waves. They've already developed a way to use it to control movement in mice. (2018-08-14)

Fish's use of electricity might shed light on human illnesses
African weakly electric fish, commonly called baby whales, use incredibly brief electrical pulses to sense the world around them and communicate with other members of their species. Part of that electrical mechanism exists in humans -- and by studying these fish, scientists may unlock clues about conditions like epilepsy. (2018-06-21)

Fish 'umbrella' protects stem cells from sun
Stem cells that make blood cells in fish flourish in the shade provided by a newly discovered cellular 'umbrella' that keeps them safe from UV damage. (2018-06-13)

Choice matters: The environmental costs of producing meat, seafood
A new study appearing online June 11 in the journal Frontiers in Ecology and the Environment considers which food type is more environmentally costly to produce: livestock, farmed seafood or wild-caught fish. (2018-06-11)

Brood parasitism in fish
Biologists from Brno (Czech Republic) and the University of Konstanz prove that 'evolutionary experience' as well as learning protects cichlid fish from the brood parasitism practiced by the African cuckoo catfish. (2018-05-09)

Study says Mekong River dams could disrupt lives, environment
The Mekong River traverses six Southeast Asian countries and supports the livelihoods of millions of people. New efforts to provide hydroelectric power to a growing and modernizing population include more than eight proposed main-stem dams and 60 or more existing tributary dams in the lower Mekong basin. A new article from University of Illinois and Iowa State University scientists lays out what dam construction could mean for residents and the environment in the region. (2018-03-08)

Farmed seafood and livestock stack up differently using alternate feed efficiency measure
A new study by researchers at the Johns Hopkins Bloomberg School of Public Health's Center for a Livable Future found that, contrary to widely held assumptions, farmed fish and shrimp convert protein and calories in feed to edible seafood at rates similar to livestock (i.e., cattle, pigs, and chickens) (2018-02-06)

Illinois sportfish recovery a result of 1972 Clean Water Act, scientists report
Populations of largemouth bass, bluegill, catfish and other sportfish are at the highest levels recorded in more than a century in the Illinois River, according to a new report. Their dramatic recovery, from populations close to zero near Chicago throughout much of the 20th century, began just after implementation of the Clean Water Act, the researchers say. (2017-10-18)

When teeth grow on the body
Certain species of catfish are covered with bony plates bristling with thin teeth. These teeth are used for defense and seduce the females. Researchers at UNIGE wanted to understand how these teeth capable of regeneration can develop outside of the mouth. They discovered that the extra-oral teeth always grow on a bone, even in the absence of a bony plate. This suggests a role for bone in the induction of dental tissue. (2017-10-17)

Research reveals globe-trotting history of sika deer
A University of Delaware researcher co-wrote a paper that details the history of sika deer populations in the Delmarva over the past 100 years. Their findings reveal a trek that began in Japan, took them through England and landed them in the US The research of the deer in Dorchester County, Md., could lead to better management of the species. (2017-05-09)

New eyeless, pale catfish from middle of Amazon named
A new species of blind, Amazonian catfish was named for the discoverer's young daughter, who frequently goes on trips to the field with him. (2017-03-15)

Almost 4 decades later, mini eyeless catfish gets a name
Discovered in a 1978-79 expedition, a pale, eyeless catfish that doesn't even measure an inch long is now known as Micromyzon orinoco, for the South American river in which it was discovered. (2017-02-23)

Winners, losers among fish when landscape undergoes change
A new study by the University of Washington and Simon Fraser University finds that some fish lose out while others benefit as urban and agricultural development encroaches on streams and rivers across the United States (2017-02-21)

Scientists confirm dorado catfish as all-time distance champion of freshwater migrations
An international team of scientists has confirmed that the dorado catfish (Brachyplatystoma rousseauxii) of the Amazon River basin holds the record for the world's longest exclusively freshwater fish migration, an epic life-cycle journey stretching nearly the entire width of the South America continent. (2017-02-06)

Chinese scientists discover a new species of catfish in Myanmar
During a survey of the freshwater fishes of the Mali Hka River drainage in a wildlife sanctuary in Myanmar, scientists Xiao-Yong Chen, Tao Qin and Zhi-Ying Chen, from the Chinese Academy of Sciences, identified a new catfish species among the collected specimens. It is distinct with a set of morphological features including its mouthparts and coloration. The discovery is published in the open access journal ZooKeys. (2017-01-24)

Promoting parasites
Hiroshima University scientists have identified a new species of parasite infecting an invasive freshwater fish on the subtropical island of Okinawa, Japan. The results are part of a project to find parasites that have arrived in Japan with their non-native hosts and understand the role of parasites in natural ecosystems. Tracking parasites can be one scientific method to monitor ecosystem health and attempt to conserve biodiversity. (2016-11-24)

Mislabeled seafood may be more sustainable, new study finds
A University of Washington study is the first to broadly examine the ecological and financial impacts of seafood mislabeling. The paper, published online Nov. 2 in Conservation Letters, finds that in most cases, mislabeling actually leads people to eat more sustainably, because the substituted fish is often more plentiful and of a better conservation status than the fish on the label. (2016-11-07)

Rare, blind catfish never before found in US discovered in national park cave in Texas
An extremely rare eyeless catfish species previously known to exist only in Mexico has been discovered in Texas. (2016-06-17)

Invasive Asian carp respond strongly to carbon dioxide
Bighead carp and silver carp are species of invasive Asian carp that threaten the Great Lakes. Adding carbon dioxide gas to water, a process similar to making carbonated soda water, could help control the movement and behavior of invasive carp in the Great Lakes basin, according to a recent study. Both carp species avoided CO2-infused water in a USGS research pond. (2016-06-15)

Study supports fish consumption during pregnancy
A new study supports the theory that the detrimental effects of low-level exposure to mercury may be outweighed by the beneficial effects of fish consumption. (2016-02-23)

Fish fins can sense touch
The human fingertip is a finely tuned sensory machine, and even slight touches convey a great deal of information about our physical environment. It turns out, some fish use their pectoral fins in pretty much the same way. And do so through a surprisingly similar biological mechanism to mammals -- humans included. (2016-02-10)

Fish tale: New study evaluates antibiotic content in farm-raised fish
In a new study, Hansa Done, Ph.D. candidate, and Rolf Halden, Ph.D., researchers at Arizona State University's Biodesign Institute, examine antibiotic use in the rapidly expanding world of global aquaculture. (2014-10-20)

Ancient swamp creature had lips like Mick Jagger
A swamp-dwelling, plant-munching creature that lived 19 million years ago in Africa has been named after Rolling Stones lead singer Sir Mick Jagger, because of its big, sensitive lips and snout. The name of the animal, Jaggermeryx naida, translates to 'Jagger's water nymph.' (2014-09-10)

A noisy world: Crabs can hear
Northeastern researchers are the first to show that marine crabs are capable of hearing and that their auditory ability plays an important role in their response to fish predators. In a new paper published Tuesday in the journal Proceedings of the Royal Society B, Hughes and her team show that sound plays at least as much of a role in mud crabs' reaction to fish behavior as other widely studied cues -- and possibly more. (2014-06-17)

LSU biologist John Caprio, Japanese colleagues identify unique way catfish locate prey
John Caprio, George C. Kent Professor of Biological Sciences at LSU, and colleagues from Kagoshima University in Japan have identified that these fish are equipped with sensors that can locate prey by detecting slight changes in the water's pH level. (2014-06-05)

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