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Fish Diversity Current Events | Fish Diversity News

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Grazer diversity counteracts plant diversity effects on ecosystem functioning in seagrass beds
Several influential experiments have shown that high plant diversity enhances ecosystem productivity, animal diversity, and invasion resistance. Yet theory predicts that plant and herbivore diversity, which often co vary in nature, should have countervailing effects on ecosystem properties. In the... view more (2003-07-02)

Mean Population Size Increases with Diversity
A long-standing debate in ecology has been the effect of diversity on the temporal stability of biological systems. Ecological theory predicts that the stability of populations should decline as community diversity increases, in part, because population size is assumed to decline with community... view more (2003-01-28)

Farmed fish with parasites: impact on wild fish stocks
'Fish farming is often proposed as a solution to diminishing stocks of wild fish. Sadly, many parasites are threatening the future of aquaculture' [by depleting fish stocks], write Jo Cable and Phil Harris, of Cardiff and Nottingham Universities, in the August issue of Biologist. A wide range of... view more (2003-08-01)

Model successfully predicts large river system fish diversity
While scientists have developed methods to predict aspects of fish diversity in specific river locations, a model to understand what factors may drive a comprehensive suite of fish biodiversity patterns in a large and complex system of rivers has been elusive.   view more (2008-05-09)

Longest study finds reef fish need longer break
In the longest running study on how fish populations in coral reef systems recover from heavy exploitation, researchers from the Wildlife Conservation Society (WCS) and others have found that the fish can recover, but they need lots of time - decades in some cases.   view more (2007-07-12)

Conservation of freshwater fish biodiversity: a challenge for the countries of the South
Humans have regularly been introducing exotic species into natural environments in order to provide for their nutritional necessities or meet less indispensable purposes such as horticulture, fishing or hunting.   view more (2008-03-27)

Fatty fish protects against cancer
If you want to avoid cancer of the kidneys, a new major study from Karolinska Institutet in Sweden shows that eating salmon or other kinds of fatty fish a few times a month would be one good way to go about it.   view more (2006-09-20)

Study uses stream fish as indicators of water quality
For many years, regulatory agencies have used chemical standards to assess water quality.   view more (2005-11-01)

Scientists Discover How Fish Evolved To Float At Different Sea Depths
Scientists at the University of Liverpool have discovered how fish have evolved over the last 400 million years to stay motionless at different water depths.   view more (2005-03-18)

Diversity in the deep blue seas
Nature magazine has published an article by Xabier Irigoien, a researcher at AZTI, the Basque Fisheries and Marine Technological Research Centre. The article provides data on the diversity of marine life at the bottom of the sea - particularly amongst algae. Species diversity Most research carried... view more (2004-06-28)

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.   view more (2006-03-07)

Actions speak louder than words for diversity
Line managers play a critical role in the successful management of employee diversity in an organisation, and staff perceptions of how positively their manager handles diversity impacts their job satisfaction and commitment to the company.   view more (2005-01-07)

Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view.... view more (2004-05-04)

Coral reef fish harbor an unexpectedly high biodiversity of parasites
IRD researchers showed that Epinephilus maculates, a fairly abundant species of grouper off New Caledonia, was parasitized by 12 species of microscopic monogenean worms.   view more (2007-09-06)

Hermaphroditic plants have genetic advantage in areas where extinctions are frequent
In one of the first studies to empirically compare the reproductive success of hermaphrodites and male and female populations, biologists from the University of Oxford make use of the rare and extreme sexual diversity displayed in a species of European weed to test the hypothesis that... view more (2006-02-22)

The ecological equivalent of Ellis Island: from ancestry to biodiversity
For many ecologists, the start of the 21st century was bewildering due to a book by Steve Hubbell. Hubbell claimed that many patterns in nature could be explained by a simple theory stating that all species are equivalent in competition for resources. In a letter to Ecology Letters, Rampal Etienne... view more (2004-02-24)

Stress relief for bullies
At last! An excuse for those of us who take our work-related stress out on our family. Dr. Øyvind Øverli of the University of Oslo has discovered that dominant rainbow trout reduce their stress levels by venting their frustration on socially subordinate animals. Presenting his results at the... view more (2004-03-24)

New Keys to Keeping a Diverse Planet
Variation in plants and animals gives us a rich and robust assemblage of foods, medicines, industrial materials and recreation activities. But human activities are eliminating biological diversity at an unprecedented rate.   view more (2007-09-27)

Fish oils may hold key to cutting deaths from heart disease
Heart patients are being asked to eat more fish as part of a University of Edinburgh study in a study to see if improved diet can reduce the risk of coronary attacks. The study will look at the way fish and fish oil supplements could help reduce inflammation of the arteries and break down the blood... view more (2003-03-27)

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.   view more (2006-10-19)

Salmon go veggie to save wild fish stocks
Salmon, like humans, require omega-3 fatty acids in their diet to function healthily. But as the fish farming industry expands, feeding salmon and other aquatic species with pellets containing fishmeal and oil derived from processing wild-caught marine fish is unsustainable in the long term.   view more (2006-04-04)

Diversity of plant-eating fishes may be key to recovery of coral reefs
For endangered coral reefs, not all plant-eating fish are created equal. A report scheduled to be published this week in the early edition of the journal Proceedings of the National Academy of Sciences suggests that maintaining the proper balance of herbivorous fishes may be critical to restoring... view more (2008-10-09)

Antenatal fish oil supplements boost kids' hand-eye coordination
Fish oil supplements given to pregnant mums boost the hand-eye coordination of their babies as toddlers, reveals a small study published ahead of print in the Archives of Disease in Childhood (Fetal and Neonatal Edition).   view more (2006-12-21)

ESC Congress 2004: Fishy stuff or a real cure? - Contrary to popular belief, a Danish study now suggests that consumption of fish does not prevent atrial fibrillation
Danish scientists from the University Hospital in Aarhus have carried out a study that questions the effect of consuming n-3 fatty acids from fish on the prevention of atrial fibrillation. Atrial fibrillation is an irregularity of the heart rhythm that - if left untreated - may lead to stroke and... view more (2004-08-31)

There's no scent like home
Tiny larval fish living among Australia's Great Barrier Reef spend the early days of their lives swept up in ocean currents that disperse them far from their places of birth.   view more (2007-01-09)
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