Posts for tag "fish science"
Finding The Right Aerator to Maintain Dissolved Oxygen in Aquaculture
You can achieve healthy dissolved oxygen levels in aquaculture by aerating your ponds. How to do so is a matter of choice.
- Posted September 3, 2020
Prehistoric Fish Found Near Mississippi Spillway
Investigators at Mississippi State University say that it’s important not to underestimate different habitat types after finding prehistoric fish near the spillway in the Sam D. Hamilton Noxubee National Wildlife Refuge. They have found unexpectedly high numbers...
- Posted August 3, 2016
Fish Ladders For South Dakota Streams
The effectiveness of fish ladders can be debated, but that hasn’t stopped a few professors at South Dakota State University from designing some to help fish in their state. Over last summer, they worked to test the...
- Posted June 8, 2016
Arkansas Hatcheries Dye Crappies with Calcein
Researchers use all sorts of tools to study fish, including dyes. Those had been used on many different species, but never crappie -- until now.
- Posted May 26, 2016
Ocean Fish Faired Well In Past Climates, With Some Shifts
By reviewing 85 million years of fish fossil records, researchers at Scripps Institution of Oceanography have found that the basic structure of the ocean ecosystem was able to remain fairly stable for tens of millions of years...
- Posted May 24, 2016
Building Salmon Knowledge In Alaska
Researchers at the University of California, Santa Barbara, are partnering with salmon experts around Alaska to make it easier to share findings about the fish, according to a release.
- Posted May 13, 2016
Sticklebacks Have No Problem Evolving Eyes For Freshwater
We’ve reported before on the quickness with which some species of sticklebacks have been able to evolve. A new study adds yet more proof that sticklebacks are amazingly quick at adapting to changing conditions, this time with...
- Posted May 9, 2016
Genes In Human Limbs And Fish Gill Arches Have Similar Roles
Do you think your genes are related to those in fish? According to a study led by researchers at the University of Cambridge and University of Chicago, at least your limbs might be.
- Posted May 4, 2016
Gulf Coast Research Lab Scientists Learn Safe Fish Surgery Techniques
If you’re a fish scientist, cutting a fish is a little more tedious than when the average angler does it. It’s important, after all, to make sure that the fish specimen you’re studying doesn’t get too stressed...
- Posted April 21, 2016
MAST@FIU Program Teaches Youngsters About Fish In Florida’s Biscayne Bay
Some Florida high school sophomores and juniors have a neat opportunity to learn about the fishes living in Biscayne Bay, according to a release from Florida International University. Those involved in the MAST@FIU program get to go...
- Posted April 18, 2016
‘Forgotten’ West Texas Fish Found After Decades Of Misidentification
There’s not a lot of water in West Texas, but that doesn’t mean there’s too little to support the discovery of a new fish species. Well, sort of new anyway. Researchers at Texas A&M University have found...
- Posted April 13, 2016
Scientists Isolate Zebrafish Genes That Regenerate
Far back in history, scientists believe that a common ancestor of humans and other animals had the ability to regenerate damaged body parts. But of course we don’t have that ability today, so what happened?
- Posted April 12, 2016
Female Cichlid Both Mom And Dad
It’s very uncommon for vertebrates to reproduce without a mate. But it does happen. It is so rare, however, that it’s almost never observed in a laboratory.
- Posted March 29, 2016
Pelvis Helps Walking Fish In Thailand
In 1985, scientists discovered a walking fish living in a cave system in Thailand. The waterfall-climbing cavefish, Cryptotora thamicola, is completely blind and yet can make its way up an incline by using what closely resembles a...
- Posted March 28, 2016
Intensively Monitored Watersheds Show Restoration Benefits
Since the 1990s, billions of dollars have been invested in works across the United States to improve stream health for fish. But many of the projects, through a lack of monitoring or recording of basic details, have...
- Posted February 2, 2016
After Spillway Opening, Will Speckled Trout Move From Lake Pontchartrain?
It’s remarkable how manmade structures can affect the behaviors of fish. In Lake Pontchartrain, one big structure to keep an eye on is the Bonnet Carre Spillway, which typically stays closed until late spring to keep the...
- Posted February 1, 2016
Acoustics Track Kanawha River Muskie Movements
A lot of fishermen know what a “honey hole” is. But if you haven’t heard this term before, it’s a spot in a river or lake where the bite is just amazing for whatever type of fish...
- Posted January 26, 2016
Swiss Scientists Study Slimy Hagfish Gels
Nature is full of a lot of amazing and eye-opening things. Take fish gels for example. Until now, no one’s really heard of fish secreting gels to defend themselves. But, according to researchers at ETH Zurich, the...
- Posted January 25, 2016
New eDNA Method For Estimating Fish Abundance
Typical methods for estimating fish abundance from a lake involve netting a number of fish from different areas and then extrapolating from there. But this method, though used in many different studies over the years, is not...
- Posted January 25, 2016
Forked Tails Give Reef Fish Wider Ranges
Researchers at James Cook University in Australia have found a simple and useful way to determine which coral reef fish species can live across the greatest range of depths, according to a release. The key to finding...
- Posted January 22, 2016
