Achilles Tang

Best wishes to you! AT

what do you think of this one currently above? AT

If there are bits of detritus that are stuck on the chaeto strands, and light does not reach that part, only that part may turn white, but the whole clump won't be affected.

The direct effect predators have on their prey is to kill them. The evolutionary changes that can result from this direct effect include prey that are younger at maturity and that produce more offspring. But killing prey also has indirect effects -- rarely characterized or measured -- such as a decline in the number of surviving prey, resulting, in turn, in more food available to survivors. In a new study characterizing the complex ecological interactions that shape how organisms evolve, biologists present a novel way of quantifying the indirect effects of predators by showing that prey adapt to food availability as well as the presence of predators. View the full article

The preservation of coastal ecosystem services such as clean water, storm buffers or fisheries protection does not have to be an all-or-nothing approach, a new study indicates, and a better understanding of how ecosystems actually respond to protection efforts in a "nonlinear" fashion could help lead the way out of environmental-versus-economic gridlock. View the full article

As a quick remedy, try aiming your pump outlet so that it breaks up the water surface, it may cause some faster evaporation or salt spray but it will also add oxygen to the water very quickly.

I suspect you have a defective test kit. Get a reputable one that is not expired and retest. You statement 'But the minute I mix up the Salifert reagents, before even doing the test, it reads 0!!! ' is very confusing... can you explain this part again?

Not all pools of water are equal from year to year when it comes to housing fish species during dry spells -- a finding that becomes increasingly important during unusual and prolonged drought conditions. "Drying in one year is not necessarily the same as drying in another year," one of the researchers said. "The dynamics of these systems where you have regular drying has become increasingly important to understand because of global climate change." View the full article

Herons nesting in the wetlands of southeast Chicago are still being exposed to chemicals banned in the US in the 1970s, a research team reports. The chemicals do not appear to be affecting the birds' reproductive success, however. View the full article

Scientists will use a kite-like drifting device that allows researchers to detect and quantify the orientation of larval coral reef fish in the pelagic environment. This invention provides a less labor intensive, more precise way of tracking the dispersal of larval and juvenile marine species. View the full article

Ecologists have discovered a mechanism of interaction across ecosystems and can show how a climate-driven phenomenon originated in shelf environments can control the biological processes of a deep-sea living resource. View the full article

They are pretty elusive fish.

An international research team reported in the scientific journal Conservation Biology, that the estimated population of vaquita, a porpoise found in the Gulf of California, is likely two years away from reaching such low levels that their rate to extinction will increase and possibly be irreversible. View the full article

Fish oil supplements may help some cardiac patients while harming others, suggests a new review of evidence. In a systematic review of trials where patients with implantable cardioverter defibrillators used fish oil supplements, scientists found significant differences among the trials, indicating fish oil may be beneficial to some patients while having a negative impact on others. View the full article

The information in this article is by large the result of my 22+ years of experience observing these animals in my own tanks, as well as tracking the results obtained by other hobbyists during that time. View the full article

This month, our readers give tips on breeding livestock. View the full article

Check to see if an event is happening in your area! View the full article

How can a hobbyist decide how to set up their tank if they don't have an idea on how the water will move in the tank? View the full article

This month, we will continue our observations of marine invertebrate coloration with a slightly different subject - that of the impressive appearance of photosynthetic clams. View the full article

These animals are generally hardy in captivity and can grow rather quickly, making them attractive to beginning and intermediate reefkeepers. View the full article

Chemistry Department, The Pennsylvania State University. In this first part of a two part series, the authors will introduce granular activated carbon and explain the experimental goals and mathematical models used in their research. View the full article

To our readers from all over planet Earth, Happy New Year. View the full article

I've seen the two-spot gobies in Manado before! Rare find in the wild! They sand-sift for food... hope they will adapt to other foods soon other than the micro-life found in the sandbed!

First time I'm seeing this! Very nice!

Ecologists have long observed that when food becomes scarce, animal populations exploit a wider range of food sources. So scientists studying southern sea otters at different sites in California's coastal waters were not surprised to find that the dietary diversity of the population is higher where food is limited. But this diversity was not reflected in the diets of individual sea otters, which instead showed dietary specialization in response to limited food. View the full article