Fish – Page 2 – PossibleThreat Articles

California's crashing kelp forest

October 21, 2019 0 Comments Exotic Species, Fish, Geography, Global Warming, Invasive Species, Marine Biology, Oceanography, Sea Life

First the sea stars wasted to nothing. Then purple urchins took over, eating and eating until the bull kelp forests were gone. The red abalone starved. Their fishery closed. Red sea urchins starved. Their fishery collapsed. And the ocean kept warming. This ecological horror story movie took place between 2013-2017, with lasting impacts. This study chronicles the catastrophic shift in 2014 from a robust bull kelp forest to a barren of purple sea urchins.

News Science

New study uncovers 'magnetic' memory of European glass eels

October 17, 2019 0 Comments Atmosphere, Environmental Awareness, Fish, Geography, Marine Biology, Oceanography, Sea Life, Wild Animals

A new study has found that European glass eels use their magnetic sense to 'imprint' a memory of the direction of water currents in the estuary where they become juveniles.

News Science

Clingfish biology inspires better suction cup

October 17, 2019 0 Comments Artificial intelligence, Engineering, Engineering and Construction, Fish, Marine Biology, Robotics, Sea Life, Statistics, technology

A team of engineers and marine biologists built a better suction cup inspired by the mechanism that allows the clingfish to adhere to both smooth and rough surfaces. Researchers reverse engineered the clingfish's suction disk and developed devices that cling well to wet and dry objects both in an out of water. The devices can hold up to hundreds of times their own weight.

News Science

3-D printed coral could help endangered reefs

October 16, 2019 0 Comments Civil Engineering, Coral Reefs, Ecology, Electronics, Fish, Marine Biology, Materials Science, Sea Life, Weather

Threats to coral reefs are everywhere — rising water temperatures, ocean acidification, coral bleaching, fishing and other human activities. But new research shows that 3-D printed coral can provide a structural starter kit for reef organisms and can become part of the landscape as fish and coral build their homes around the artificial coral.

News Science

Climate change increases risk of mercury contamination

October 16, 2019 0 Comments Climate, Environmental Issues, Environmental Science, Fish, Hazardous Waste, Nature, Organic, Soil Types

As global temperatures continue to rise, the thawing of permafrost is accelerated and mercury trapped in the frozen ground is now being released. The mercury is transforming into more mobile and potentially toxic forms that can lead to environmental and health concerns for wildlife, the fishing industry and people in the Arctic and beyond.

News Science

Galapagos study highlights importance of biodiversity in the face of climate change

October 16, 2019 0 Comments Biodiversity, Ecology, Ecology Research, Environmental Awareness, Environmental Issues, Fish, Marine Biology, Nature

Study of wave turbulence suggests that highly mobile species and more diverse ecological communities may be more resilient to the effects of changing environmental conditions.

News Science

What gives a 3-meter-long Amazonian fish some of the toughest scales on Earth

October 16, 2019 0 Comments Engineering and Construction, Fish, Fisheries, Graphene, Marine Biology, Materials Science, Nature of Water, Sea Life

Arapaima gigas is a big fish in a bigger river full of piranhas, but that doesn't mean it's an easy meal. It's evolved armor-like scales that deform, but don't tear or crack, when a piranha — which has one of the animal kingdom's most powerful bites — attacks. Researchers describe the unique properties of the Amazonian Arapaima skin and its potential for human-made materials.

News Science

Piranha fish swap old teeth for new simultaneously

October 16, 2019 0 Comments Evolutionary Biology, Fish, Fisheries, Food and Agriculture, Marine Biology, Sea Life, Wild Animals, Zoology

With the help of new technologies, a team has confirmed that piranhas lose and regrow all the teeth on one side of their face multiple times throughout their lives. How they do it may help explain why the fish go to such efforts to replace their teeth.

News Science

The makeup of mariculture: Global trends in seafood farming

October 15, 2019 0 Comments Agriculture and Food, Environmental Issues, Environmental Policy, Fish, Fisheries, Food and Agriculture, Geography, Sustainability

The process of farming seafood in the ocean, known as mariculture, is a growing trend yet little is known about the trajectories of its development. That's why a team of researchers set out to shed some light on the industry.

News Science

Survival strategy found in living corals which was only seen in fossil records

October 15, 2019 0 Comments Early Climate, Ecology Research, Evolution, Fish, Fossils, Marine Biology, Origin of Life, Sea Life

Some corals can recover after massive mortality episodes caused by the water temperature rise. This survival mechanism in the marine environment — known as rejuvenation — had only been described in some fossil corals so far. A new study reveals the first scientific evidence of the rejuvenation phenomenon in vivo in Cladocora caespitosa coral colonies, in the marine reserve in Columbrets, in the coast of Castellón.