What sound does a fish make?
No, it’s not a riddle– scientists have been exploring the noisy underwater world of fish since the late 1800s. With the dawn of a new online database, now you can too.
Read moreNo, it’s not a riddle– scientists have been exploring the noisy underwater world of fish since the late 1800s. With the dawn of a new online database, now you can too.
Read moreIt’s easy to imagine how a forest might look immediately after a wildfire. It’s harder to imagine how a wildfire could affect life underwater.
Read moreSometimes scientific breakthroughs happen by sheer accident. That was certainly the case with scientists studying the Russian sturgeon. An unexpectedly successful cross-species breeding experiment resulted in the first documented surviving hybrids of Russian sturgeon and American paddlefish. This opens new doors and frontiers for fish genetics, aquaculture, and potential survival strategies for critically endangered sturgeon species.
Read moreUp to 60 percent of all fish species may eventually be forced to find new mating areas due to traditional areas becoming too warm for them. By studying fish species from all over the world, experts released a new report suggesting that many fish have a low tolerance for heat during mating. Water temperature may have a larger than previously acknowledged effect on fish reproduction success. If global warming continues, fish populations may not be as strong or as plentiful as they once were unless they find new mating locations.
Read moreSonoran suckers, like other ecosystem engineers like beavers or salmon, substantially influence the spatial and temporal distribution of their environment’s resources. These fish create divots in soft sediments during their nightly feeding rounds in shallow waters far from where they seek refuge during the day. This feeding and these divots contribute heavily to shaping patterns of aquatic insects and suspended sediment in the Gila River, establishing the suckers as important ecosystem engineers in the river.
Read moreAs you swim through a coral reef, you see parrot fish, clams and other colorful aquatic creatures swimming elegantly and going about their lives. While you, with your snorkel, are confined to the surface of the water and the occasional dive for as long and as deep as you can hold your breath, the fish “breathe” easily with their gills (or lungs in the cases of some evolutionarily interesting fish). But do they breathe that easily? Living in and getting oxygen from a high-pressure aquatic environment is difficult and metabolically demanding, and some fish have found special ways to make it easier.
Read moreThe Nassau grouper has long been critically endangered due to overfishing throughout its Caribbean range. The Cayman Islands government instituted a comprehensive program to boost Nassau grouper numbers, and partnered with scientists and conservation organizations in a project to monitor the grouper population. Over the fifteen year program, the fish population has increased. The program and project provide successful models for marine conservation partnerships.
Read moreThe ever-growing and expanding pharmaceutical industry is overwhelming wastewater treatment plants, making the release of pharmaceuticals into the environment a big problem. A recent study illustrates that the presence of anti-depressants in streams can change the behavior of mosquitofish. The potential effects of pharmaceutical pollution on wildlife should make us think carefully about how we dispose of our leftover medicines.
Read moreAs drought causes lake levels to drop, fish lose rare lakeshore habitat that shelters their eggs and offspring.
Read moreThe primary goal of conservation is to protect species in their natural habitats, but this can be extremely challenging. Captive breeding in zoos and aquariums may play a vital role in conserving endangered species, but good data must be readily available.
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