Bumblebees can be classified as ‘fish’ under California conservation law, court says

Credit: CC0 Public Domain In a move that could allow a broad range of insects to be considered for endangered species status, the state Supreme Court has found that California bumblebees can be protected under the law as a type of fish. The decision, which may carry deep consequences for the state’s agriculture industry, focuses … Read more

Fish can help in the search for multiple sclerosis drugs

Zebrafish and humans both have a GPR17 receptor. In the study, the fish receptor was replaced by its human counterpart. This makes it more likely to find pharmacologically active substances. Credit: AG Kostenis-Gomeza / University of Bonn The zebrafish should be known to many aquarium enthusiasts, mainly because of its striking pigmentation. However, the characteristic … Read more

Radiology sheds light on ancient fish species coelacanth

The Copenhagen coelacanth entering the CT-scanner. Credit: Henrik Lauridsen An after-hours trip to Aarhus University Hospital Skejby’s radiology department has shed light on a mysterious and ancient fish, one that remains one of the world’s rarest—the Coelacanth. Researchers from the University of Copenhagen and Aarhus University have removed Denmark’s only specimen of this primordial fish … Read more

A race to save fish as Rio Grande dries, even in Albuquerque

On a recent, scorching afternoon in Albuquerque, off-road vehicles cruised up and down a stretch of dry riverbed where normally the Rio Grande River flows. The drivers weren’t thrill-seekers, but biologists hoping to save as many endangered fish as they could before the sun turned shrinking pools of water into dust. For the first time … Read more

Meet Qikiqtania, a fossil fish with the good sense to stay in the water while others ventured onto land

CC BY-ND” width=”800″ height=”394″/> An artist’s vision of Qikiqtania enjoying its fully aquatic, free-swimming lifestyle. Credit: Alex Boersma, CC BY-ND Approximately 365 million years ago, one group of fishes left the water to live on land. These animals were early tetrapods, a lineage that would radiate to include many thousands of species including amphibians, birds, … Read more

Genome of tropical freshwater fish may reveal conservation clues

DePaul researchers will create a high-quality reference genome for two species of the endemic characid genus Rhoadsia and conduct resequencing of 20 additional specimens. Credit: Windsor Aguirre The genetic evolution of freshwater fish in Ecuador could unlock new insights for conservation ecologists. A new collaboration between biologists and computer scientists at DePaul seeks to sequence … Read more

Cambodian catches world’s largest recorded freshwater fish

In this photo provided by Wonders of the Mekong taken on June 14, 2022, a man touches a giant fresh water stingray before being released back into the Mekong River in the northeastern province of Stung Treng, Cambodia. A local fisherman caught the 661-pound (300-kilogram) stingray, which set the record for the world’s largest known … Read more

Fish cannibalism is rare in the wild, study finds

X-ray image of an adult female Bahamas mosquitofish where a fish she had eaten can be seen inside of her, revealing an occurrence of cannibalism. Credit: Brian Langerhans Mosquitofish and guppies, though known to be cannibalistic in captivity, are extremely unlikely to be cannibals in wild settings, and the rare instances of cannibalism in these … Read more

Foreign fishing fleets and trade are taking fish nutrients away from malnourished people

Cold storage lorries and fishing boats in Morocco. The lorries will transport the fish inland as part of the seafood trade. Credit: Nick Graham Foreign fishing fleets, as well as an international seafood trade, are diverting vital micronutrients away from malnourished populations, a new study reveals. Fish are an important source of micronutrients and essential … Read more

Amazon deforestation threatens newly discovered fish species in Brazil

Zoological Journal of the Linnean Society. Both species inhabit waters located at the bleeding edge of human encroachment into the Amazon rainforest roughly 25 miles north of the Brazilian city of ApuĂ­. Credit: Murilo NL Pastana & Willian M. Ohara” width=”800″ height=”469″/> The recently described Poecilocharax callipterus. Average fish size ~3 centimeters. Smithsonian’s National Museum … Read more