In a river of southeastern Brazil, an “armored” creature with a “whip”-like tail moved through the shallow water. At least, ...

In this study, we surveyed several commercial fish species traded in markets in the Peruvian Amazonian city of Iquitos for contamination by microplastic. We sampled 61 specimens belonging to 15 ...

Birch Aquarium displays rare 11-foot oarfish found in Encinitas, exploring the deep-sea mysteries of these serpentine creatures once mistaken for sea monsters.

In a hard-to-reach cave of northeastern India, a “slender” river creature with “fleshy” lips tucked itself under a rock. A ...

A global review of research around the impacts of dams has found they are significantly harmful to diadromous species—fish, ...

From southbound cane toads to invasive weeds and fluctuating fish stocks, a novel technique called eDNA has revealed what's in NSW waterways—and how it's influenced by natural disasters.

We train two models to classify 10 species of fish: one without and one with data augmentation. Our results show that using data augmentation improves our model’s ability to deal with more difficult ...

arranged in 84 host fish species. This work carried out in the floodplain of the upper Paraná River contributes to the listing of parasite species and host interactions of the local ichthyofauna.

We investigated the spatial distribution of fish species with different trophic and movement/reproductive/size characteristics to assess how functional groups have responded to a cascade of dams on ...

fish taxonomy ... For comparison of the new species with its closest congeners, the following museum specimens were examined: Microsternarchus bilineatus: VENEZUELA. San Bartolo River, Morichal ...

The unique fighting fish, or betta fish, turned out to be a new rare species, according to a May 15 study published in the journal ZooKeys. Researchers set out to Jambi, Sumatra, to learn more ...