The Biggest Fish in the Ocean Are Girls, Study Reveals

Courthouse News Service — Marine biologists revealed Tuesday that female whale sharks grow slower than males, but in the long run become significantly larger because males plateau once they reach adulthood. The study, published in the journal Frontiers of Marine Science, is the first evidence of different growth rates between the two sexes, and proves that female whale sharks are the Read More…

Fish exposed to noise pollution likely to die early: study

PhysOrg — Fish stressed by noise are less able to fight off disease and prolonged exposure can lead to an early death, according to research on the consequences of man-made clamour on the natural world.  Human noise pervades the environment, from the roar of engines to the clatter of industry. Being underwater is no escape, with the whir of ship propellers thought to interfere with Read More…

Animals’ magnetic ‘sixth’ sense may come from bacteria

ScienceDaily — A University of Central Florida researcher is co-author of a new paper that may help answer why some animals have a magnetic "sixth" sense, such as sea turtles' ability to return to the beach where they were born. The question is one that has been unresolved despite 50 years of research. "The search for a mechanism has been proposed as one of the last major frontiers Read More…

Dams exacerbate the consequences of climate change on river fish

ScienceDaily — 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 Read More…

Scientists Identify at Least 11 Fish Species That May Be Capable of…

ScienceAlert — At first, the idea of a walking fish sounds ridiculous – but such hybrid creatures have played a key role in the evolution of the animal kingdom on Earth. Now, new research has shown that more fish than we ever realised may be able to walk about on land. That's according to a detailed study of the skeletons of the hillstream loach fish family in Asia, which includes one Read More…

The Science on Why Bass Are Getting Harder to Catch

Outdoor Life — Spend enough time at any boat ramp from Sam Rayburn Reservoir in Texas to Mille Lacs Lake in Minnesota and you’ll hear a common complaint: “Man, it’s getting harder and harder to catch a bass.” Your buddies will want to blame fishing pressure. And while real cause-and-effect is tricky to pin down, there is some good science to support those claims that Read More…

Trout don’t follow the weather forecast

ScienceDaily — An endangered fish in California might use its internal clock to decide when to migrate, according to a study by the University of Cincinnati. UC visiting assistant professor of biology Michael Booth studied the migration patterns of steelhead, a subpopulation of rainbow trout that migrates to the Pacific Ocean, where the growing fish hunt and feed until they return to Read More…

New science: detrimental dams, fishery fears, protection rollbacks

Conservation International — Protecting nature starts with science. Here’s a roundup of recent scientific research published by Conservation International experts. 1. Dam development in protected areas could threaten freshwater ecosystems  A recent study found that more than 500 dams are planned or currently under construction in the world’s protected areas, which could Read More…

Swimming Against the Current: UNT Biologists Study the Impact of…

Dallas Innovates — It might not come as a shock to anyone who drove in Dallas-Fort Worth last year, but the region was the second-busiest building market in the country with almost $22.5 billion in construction. While road construction is often aggravating to people trying to get to work, it’s more than just an inconvenience for the state’s at-risk fish species. Per ongoing research Read More…

Scientists identify 300 previously unrecorded fish species

PhysOrg — Yury Dyldin, a scientist at the TSU Biological Institute, initiated a large-scale study of the diversity of freshwater fish and marine species entering the fresh waters of the Russian Federation and adjacent regions. The audit carried out by scientists from Russia, the Czech Republic and Germany showed more than 300 previously unrecorded species in the Russian Federation. The Read More…