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Latest Ichthyology Stories

2013-07-22 23:04:45

Transparency Market Research adds new "Squalene Market - Global Industry Analysis, Size, Share, Growth, Trends and Forecast, 2012 - 2018" market research report to its report store. Browse the report; visit http://www.transparencymarketresearch.com/squalene-market.html Albany, NY (PRWEB) July 22, 2013 Squalene is a natural oily liquid hydrocarbon found in plants and animals. Squalene is commonly found in large quantities in shark liver oil, as the liver comprises almost...

Scientists Study Emergence Of Ray-Finned Fish
2013-07-22 17:47:50

Brett Smith for redOrbit.com – Your Universe Online Just like the rapper Drake, ray-finned fish started from the bottom – now they’re here. The vertebrate class of fish, which comprises 99 percent of all fish species, arose from a small, shell-crushing predatory fish called Fouldenia that survived a massive extinction event 359 million years ago, according to a new report in Zoological Journal of the Linnean Society. "This event 359 million years ago is called...

Fish Relatives Surprise Scientists
2013-07-18 04:53:01

Susan Bowen for redOrbit.com - Your Universe Online Scientists have used genetic data to create a comprehensive evolutionary family tree, or phylogeny, for "spiny-rayed fish," a category that encompasses about a third of all living vertebrate species. They were quite surprised to find out just who was related to whom in the fish world. The researchers, who published their findings in the Proceedings of the National Academy of Sciences looked at 10 genes in more than 500 fish species...

Great White Sharks Use Stored Liver Oil As Fuel For Long Trips
2013-07-17 18:58:39

Brett Smith for redOrbit.com - Your Universe Online While not quite as exciting as last week's Sharknado, a report from Stanford University just published in Proceedings of the Royal Society B has revealed new details on how great white sharks can make non-stop voyages that extend 2,500 miles or more. According to the report, the sharks store excess energy after feeding in the form of liver oil, which they can tap into on long trips. "We have a glimpse now of how white sharks come in...

Thresher Sharks Take Down Prey With Whip-Like Tail
2013-07-11 10:44:42

Brett Smith for redOrbit.com - Your Universe Online Named after its long whip-like tail, the thresher shark uses its eponymous feature not only to swim, but also to strike at prey. An international team of marine biologists has captured and analyzed rare videos depicting the sharks' unusual hunting style, according to a report in the journal PLoS ONE. Shot in the tropical waters off the coast of the Philippines, the videos show pelagic thresher sharks accelerating toward schools of...

Fish Species That Thrive In Bay Bottoms Are Being Impacted By Dead Zones
2013-07-09 07:35:36

April Flowers for redOrbit.com - Your Universe Online Scientists at the Virginia Institute of Marine Science (VIMS) have completed a 10-year study, providing the first quantitative evidence on a bay-wide scale that the distribution and abundance of "demersal" fishes -- fish species that live and feed near the Bay bottom -- are being impacted by low-oxygen "dead zones." Species affected by these dead zones, such as the Atlantic croaker, white perch, spot, striped bass and summer...

Juvenile Reef Fish Use The Sun Compass To Guide Them To Safety
2013-07-08 09:32:57

Brett Smith for redOrbit.com - Your Universe Online When reef fish hatch from their eggs, they are immediately swept out to sea -- sometimes miles from the safety of their coral homes. Once they are able to swim, these fish must begin the arduous trek back or risk getting devoured in the open waters. The tiny fishes' uncanny ability to locate their home reef has captivated scientists and a new study in the journal PLoS ONE revealed these fish use the sun's position in the sky to...

The Land Invasion Race: The Evolution Of Fins To Limbs
2013-07-07 19:51:23

Society for Experimental Biology Why did animals with limbs win the race to invade land over those with fins? A new study comparing the forces acting on fins of mudskipper fish and on the forelimbs of tiger salamanders can now be used to analyze early fossils that spanned the water-to-land transition in tetrapod evolution, and further understand their capability to move on land. Research conducted by Sandy Kawano and Richard Blob at Clemson University compared terrestrial locomotion in...

Sea Lampreys Use Fat Layer To Attract Females
2013-06-27 18:33:19

Michael Harper for redOrbit.com - Your Universe Online Male sea lampreys, often called vampire fish, have a long ridge running across their backs that contains a long row of brown fat cells. Other animals also have stores of brown fat similar to the ridge found on the male lampreys. In mammals, this fat is used to regulate body temperature and warm the animal when their surroundings are too cold. Scientists from Michigan State University (MSU) were curious why the male lampreys had this...

Body Undulations Of Fish And Eels
2013-06-24 15:47:54

Brett Smith for redOrbit.com - Your Universe Online Looking to biology for inspiration seems to be all the rage in engineering circles these days, and a team of Northwestern University and NYU scientists has discovered new insights into how undulations help a fish to swim. The team’s findings, which were published in the journal PLOS Computational Biology, could have implications for the development of new underwater vehicles. “If we could play God and create an undulatory...


Latest Ichthyology Reference Libraries

Prowfish
2014-05-30 12:05:29

The prowfish (Zaprora silenus) is a subtropical species of a perch-like fish found in the northern Pacific Ocean. The range of the prowfish is from the Aleutian Islands, Alaska to Kamchatka, Russia, from Navarin Canyon in the Bering Sea to Hokkaido, Japan and Monterey, California. The preferred habitat of the prowish is rocky bottom at a maximum of 2,200 feet in depth where they spend most of their adult life. Prowfish can grow to a length of 40 inches or more having an elongated body that...

Bluefish, Pomatomus saltatrix
2013-10-22 10:54:52

The Bluefish (Pomatomus saltatrix) is the only living species of the family Pomatomidae. It is a marine pelagic fish that can be found around the world in temperate and subtropical waters, except for the northern Pacific Ocean. Bluefish are known as tailor in Australia, shad on the east coast of South Africa, and elf on the west coast. Other common names regarding this fish are blue, chopper, and anchoa. It is a good eating and game fish. The bluefish is moderately proportioned with a...

Ichthyology
2013-10-02 13:31:45

Ichthyology is the study of fish that focuses on many types of fish including cartilaginous fish, jawless fish, and skeletal fish. This branch of zoology can be associated with marine biology and fisheries science, as well as other areas of study. Ichthyologists, those who practice ichthyology, have discovered more than 32,200 species of fish, and it is thought that they discover 250 new species each year. Humans first began to study fish during the Upper Paleolithic Revolution, when humans...

Little tunny, Euthynnus alletteratus
2013-03-28 14:07:39

The little tunny is found widespread in temperate and tropical waters of the Atlantic Ocean, Black Sea and Mediterranean Sea. It is the most common tuna and is highly migratory, with a range from Cape Cod, Massachusetts to Brazil in the Western Atlantic. In the Eastern Atlantic it is found from Skagerrak to South Africa. The little tunny will form schools close to the shoreline, around inlets, and sandbars that can cover up to two miles. This fish prefers warm water and will migrate south in...

African Sharptooth Catfish, Clarias gariepinus
2013-02-09 08:30:28

Image Credit: WA Djatmiko/Wikipedia (CC BY-SA 3.0, 2.5, 2.0 and 1.0) The African sharptooth catfish is native throughout Africa, and the Middle East, and in the 1980’s it was introduced all over the world. This catfish lives on muddy bottoms in freshwater lakes, rivers, swamps, man-made habitats, and occasionally found in urban sewage systems. This species is able to crawl across dry ground to another body of water when one pool dries up. It is also able to survive for long periods of...

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Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
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