Fish Current Events

Fish Current Events, Fish News Articles.
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Eating fish may reduce arthritis symptoms
In a recent study, individuals with rheumatoid arthritis who consumed fish 2 times/week had lower disease activity (swollen/tender joint counts along with other assessments) than those who ate fish never to <1/month. (2017-06-21)

Shrimp heal injured fish
James Cook University scientists in Australia have discovered that shrimp help heal injured fish. (2018-08-22)

Marine Fish Culture By John W. Tucker, Jr., Ph.D.
MARINE FISH CULTURE is the first comprehensive reference and textbook on this subject and provides information on more than 870 species in 129 families. The book is the product of the author's 27 years of research and teaching in fish culture and biology. Over 4,000 references are included in the text. (1999-01-07)

States' fish consumption advisories are often not in line with federal recommendations
Fish consumption advisories are used to inform citizens about fish with potentially hazardous levels of toxins such as methyl mercury. When investigators examined five states that set their own recommendations regarding screening values for methyl mercury, the team found that the states issued fish consumption advisories for fewer than half of the water bodies that would have advisories if recommendations by the US Environmental Protection Agency were followed. (2015-12-02)

It smells fishy: Copper prevents fish from avoiding danger
Fish fail to detect danger in copper-polluted water. A new study, to be presented at the meeting of the Society for Experimental Biology on July 5, shows that fish cannot smell a danger odor signal emitted by other fish in waters contaminated with copper. (2013-07-04)

Small fish recover faster than large fish
A University of Illinois study showed smaller fish recover from exertion faster than larger fish. (2011-09-21)

A fishy change in diet
New McGill research suggests that a common freshwater fish, the yellow perch, is moving away from its traditional diet to one that is less nutritious and potentially poisonous. The consequences may be deadly to freshwater life and harmful to human food sources. (2004-09-23)

How to grow a bigger brain
Hatchery-reared steelhead trout show increased growth of some parts of the brain when small stones are scattered on the bottom of their tank, according to a new study by researchers at UC Davis. (2006-03-06)

Big mamma fish give proportionally bigger reproductive outputs
Even accounting for their proportionate size, bigger female fish produce many more offspring than smaller fish, a new study reveals. The results hold implications for fisheries managers, since climate change is expected to reduce the size of fish (and thus the number of their offspring) in many regions around the globe. (2018-05-10)

Clown fish survival depends on environment more than genetics
Clown fish are unable to genetically adapt to changes in their environment. Such is the conclusion of a study, unprecedented in the field of submarine environmental research, by a international group of scientists. (2019-11-27)

Nothing fishy about swimming with same-sized mates
Have you ever wondered why, and how, shoals of fish are comprised of fish of the same size? According to new research by Ashley Ward, University of Sydney in Australia, and Suzanne Currie, Mount Allison University in Canada, fish are able to use chemical cues to find other fish of the same size as themselves. (2013-02-06)

This fish out of water cools down fast: Study
The tiny mangrove rivulus fish cools down by jumping out of water, according to a new study from the University of Guelph. The fish lives in tropical climates, and when the water is warm, will jump out to cool its body temperature down by air-chilling itself. This is an example of evaporative cooling. As temperatures warm in this area due to climate change, this could happen more often. (2015-10-21)

Overfishing increases fluctuations in aquatic ecosystems
Overfishing reduces fish populations and promotes smaller sizes in fish. The fish also reach sexual maturity earlier than normal. However, the impact of overfishing is not restricted to fish: as the predators at the top of the food web dwindle, the stability of the entire aquatic ecosystem is at risk. (2016-03-02)

Fish in schools can take it easy
Using a new computer model, researchers at the Ecole Centrale de Marseille and CNRS have shown that a fish expends less energy when it swims in a school, because neighbouring fish produce a 'suction' effect. This work will be published on 11 May 2018 in Physical Review Letters. (2018-05-09)

Fishing down food web leaves fewer big fish, more small fish in past century: UBC research
Predatory fish such as cod, tuna and groupers have declined by two-thirds over the past 100 years, while small forage fish such as sardine, anchovy and capelin have more than doubled over the same period, according to University of British Columbia researchers. (2011-02-18)

Fishy behaviour
A fish's personality may determine how it is captured. This association between personality difference and capture-technique could have significant evolutionary and ecological consequences for affected fish populations, as well as for the quality of fisheries. (2011-10-04)

Genetic markers show something fishy with certified Chilean sea bass sales
Clemson University population biologist Peter Marko and his colleagues have found that not all certified Chilean sea bass are what they are claimed to be. Some fish sold in stores are not from the fishing grounds certified as sustainable, and some are not Chilean sea bass at all. (2011-08-22)

Not so fast -- our fishy friends can also feel pain
Do you still believe that fish are dumb and cannot feel pain? That we do not have to worry much about how they are cared for or caught? Think again, says Culum Brown of Macquarie University in Australia, in a review article in Springer's journal Animal Cognition. The research notes that fish cognition and their sensory perception are generally on par with that of other animals. (2014-06-17)

Over-use of antibiotics in fish-for-food industry encourages bacterial resistance and disease
The heavy use of antibiotics in the rearing of fish could be detrimental to the health of the fish, but also that of animals and humans, a recent report says. This practice encourages bacterial resistance and could lead to the evolution of resistant strains of bacteria in animals and humans as well as the fish themselves. A more judicious approach to the use of prophylactic (preventative) antibiotics is necessary. (2006-06-20)

Fishing for alternatives
Cultured fish cell lines and organs such as gills, heart, liver and intestines are being used to investigate the effects of toxins on fish such as freshwater trout and carp in a move to cut down the number of experiments carried out on live fish. Fish Biologists will be presenting new culture methods to help replace the use of live fish for safety testing of chemicals in line with a European Commission directive to replace the use of animals in ecotoxicology. (2007-03-31)

Genetic switches help fish adjust to fresh and salty water
UC Davis researchers have discovered two key signals that tell fish how to handle the stress of changing concentrations of salt as they swim through different waters. (2005-02-14)

How fish minimize their visibility to predators in open waters
Though the open ocean leaves few places for fish to hide from predators, some species have evolved a way to manipulate the light that fills it to camouflage themselves, a new study finds. (2015-11-19)

Salmon go veggie to save wild fish stocks
Salmon, like humans, require omega-3 fatty acids in their diet to function healthily. With wild marine fish stocks on the decline, feeding salmon with pellets made from fish such as anchovy is unsustainable in the long term. Scientists from the University of British Columbia will explain how this problem could be solved by replacing anchovy oil with canola oil (also known as rapeseed oil) in the diets of salmon. (2006-04-04)

Clown fish: Whence the white stripes?
Scientists from the CNRS have been training their attention on the developmental and evolutionary determinants of white stripes in clown fish. In an article published in BMC Biology, they detail why, when, and how these bands arose and help elucidate their role in clown fish social organization. (2018-09-04)

Spawning fish and embryos most vulnerable to climate's warming waters
Spawning fish and embryos are far more vulnerable to Earth's warming waters than fish in other life stages, according to a new study, which uniquely relates fish physiological tolerance to temperature across the lifecycles of nearly 700 fish species. (2020-07-02)

Sneaky sex causes fish pest
Men! Fed up with women faking headaches? Grant yourself lucky that you are not a mosquito fish, as females wouldn't think twice about attacking you when you make a pass at them. Dr. Robbie Wilson from the University of Queensland, Australia, will present his work on the sexual behaviour of mosquito fish and how it changes when the temperature goes up. (2005-07-13)

Conformity trumps riskiness in social fish
Researchers at the University of Bristol have discovered that more sociable fish suppress their own personality when they are with a partner. (2018-06-12)

Researcher explores whether fish feel pain
Do fish feel pain? Victoria Braithwaite, Penn State professor of fisheries and biology, has spent decades studying that question. In her recently published book, (2010-11-16)

Smarter than you think: Fish can remember where they were fed 12 days later
It is popularly believed that fish have a memory span of only 30 seconds. Canadian scientists, however, have demonstrated that this is far from true -- in fact, fish can remember context and associations up to 12 days later. (2014-07-01)

'Darwinian debt' may explain why fish stocks don't recover
Why does it take so long for fish stocks to recover from over-fishing? This problem has been worrying both scientists and fishery managers who expect stocks to quickly rebound when fishing stops. Now published in Ecology Letters, a research team from Stony Brook University believes they have an answer: continually harvesting the largest and oldest fish (as fishing regulations typically require) alters not only size but also numerous other genetic characteristics that are harmful to the overall population. (2006-01-11)

2 is not company -- as far as fish are concerned
Research at the Universities of Plymouth and Exeter has shown that fish kept alone or in small groups are more aggressive, and exhibit fewer natural behaviors such as shoaling. Dr. Katherine Sloman will discuss the findings and their implications for welfare guidelines for aquarium fish at the Society for Experimental Biology meeting on Monday, June 29. (2009-06-29)

Fishy diagnostics for food allergy testing
James Cook University scientists in Australia have found material commonly used for fish allergy testing is unreliable -- potentially putting lives at risk. (2019-04-11)

Adaptation is (not) in the eye of the beholder
The limited immune response in the eyes of freshwater fishes has created a great home for parasites, according to research published online in the journal Molecular Ecology. (2010-06-22)

Captain Birdseye's robotic nose
The captain can't freeze smelly fish that's past its best -- and Icelandic scientists can now help him out by detecting the levels of stench-making bacteria faster than ever before. The research in the Royal Society of Chemistry's Journal of Environmental Monitoring reports a new method to detect bacteria that break down dead fish and produce the distasteful smell of rotting fish. (2008-09-30)

Learned social preference in zebrafish
Using the zebrafish, a model organism widely used in genetic studies, researchers have found that when it comes to social interactions with other fish, individual zebrafish learn to prefer one fish color pattern over another according to their early experience with these patterns. The studies reported this week suggest that the extensive knowledge of zebrafish genetics will afford researchers an opportunity to see how genes, development, and environment lead to behaviors that mediate social interactions. (2004-05-24)

Commercial fishing causes dangerous fluctuations in fish populations
Commercial fishing causes serious fluctuations in fish populations leaving them in danger of total collapse, says new research published today. These fluctuations mean current measures in place to control fish stocks may not be sufficient to ensure their sustainability. (2006-10-18)

Asia's bear-sized catfish are disappearing
One of the world's largest freshwater fish, an Asian catfish as big as a bear, may disappear in the near future, warns a UC Davis conservation biologist from his research base in Cambodia. (2004-02-24)

How an animal's biochemistry may support aggressive behavior
Researchers who paired Siamese fighting fish in mock fights found that winning fish could supply more energy to their muscles during fights than losing fish. (2015-06-15)

Fish getting smaller as the oceans warm: UBC research
Changes in ocean and climate systems could lead to smaller fish, according to a new study led by fisheries scientists at the University of British Columbia. (2012-09-30)

Fish go deep to beat the heat
A James Cook University study shows fish retreating to deeper water to escape the heat, a finding that throws light on what to expect if predictions of ocean warming come to pass. (2015-08-06)

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