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Latest Ichthyology Stories

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2011-06-29 08:00:00

Shark populations over the last 50 years have decreased dramatically. From habitat degradation to overfishing and finning, human activities have affected their populations and made certain species all but disappear. A new article in Current Issues in Tourism by Austin J. Gallagher and Dr. Neil Hammerschlag of the R.J. Dunlap Marine Conservation Program at the University of Miami study the impact of these apex predators on coastal economies and the importance of including conservation efforts...

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2011-06-24 09:29:39

Where Atlantic salmon feed in the ocean has been a long-standing mystery, but new research led by the University of Southampton shows that marine location can be recovered from the chemistry of fish scales. Surprisingly, salmon from different British rivers migrate to feed in separate places, and may respond differently to environmental change. Numbers of Atlantic salmon have declined across their range since the early 1970s, and most researchers believe that conditions experienced at sea are...

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2011-06-08 13:08:16

Biologists found resemblances between a peloton of cyclists in the Tour de France and a school of fish, reports the Guardian. Fish swim as though they were cyclists, where as fish at the back of a school use the slipstream created by the stronger fish out in front to swim with less effort. The study found that the position of a fish in the school depends on how physically fit it is.  The fittest swim at the front, where they get the pick of the best food. The less-fit fish swim...

2011-06-07 06:30:00

FORT LAUDERDALE, Fla., June 7, 2011 /PRNewswire/ -- With shark populations around the world continuing to spiral downward, the result of devastating commercial fishing techniques and an exotic taste for 'shark-fin soup', marine scientists such as Dr. Guy Harvey, are working around the clock to give these magnificent animals a fighting chance for survival. In his latest mission, Dr. Harvey--better known throughout the world as a celebrated and award-winning marine wildlife artist--has...

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2011-05-26 10:10:18

Whale sharks (Rhincodon typus) are often thought to be solitary behemoths that live and feed in the open ocean. Scientists at the Smithsonian Institution and colleagues, however, have found that this is not necessarily the case, finding that whale sharks can be gregarious and amass in the hundreds to feed in coastal waters. Aggregations, or schools, of whale sharks have been witnessed in the past, ranging from several individual sharks to a few dozen. However this new research, which involved...

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2011-05-23 09:20:31

A Star-mapping Algorithm For The Hubble Space Telescope Also Helps Researchers Keep Tabs on Rare Animals The speckle-skinned whale shark, despite growing to lengths of up to 40 feet, is among the rarest and least understood fish species. Its name in Madagascar"”"marokintana""”means "many stars." It's fitting, then, that researchers are now tracking these filter-feeding leviathans using an innovation originally designed to help NASA map the heavens. In 2002, Portland, Oregon,...

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2011-05-02 14:20:00

According to a new study released Monday by researchers in Australia, a single reef shark can be worth about two million dollars in tourism revenue over its lifetime. The analysis from the Pacific island nation of Palau shows that sharks are worth many times more to local economics alive than dead. "Sharks can literally be a 'million-dollar' species and a significant economic driver," said lead author Mark Meekan, a scientist at the Australian Institute of Marine Science. "Our study shows...

2011-05-01 23:00:00

WASHINGTON, May 2, 2011 /PRNewswire-USNewswire/ -- A single reef shark can contribute almost US$2 million in its lifetime to the economy of Palau, according to a new study by the Australian Institute of Marine Science (AIMS) and the University of Western Australia. The analysis quantified the economic benefits of the shark-diving industry to the Pacific island nation and found that its value far exceeded that of shark fishing. (Photo: http://photos.prnewswire.com/prnh/20110502/DC92959 )...

2011-04-28 21:24:24

A novel way to ramp up biodiversity Bruce Carlson stands next to a fish tank in his lab, holding a putty colored Radio Shack amplifier connected to two wires whose insulation has been stripped. At the bottom of the tank a nondescript little fish lurks in a sawed-off section of PVC pipe. Carlson sticks the two bare wires into the tank. Suddenly we hear a rapid-fire pop, pop, pop, pop, pop, pop. The pops, which are surprisingly loud, sound rather like the static on an old-fashioned tube radio...

2011-04-18 09:30:00

SAN FRANCISCO, April 18, 2011 /PRNewswire/ -- Aquarium of the Bay today unveiled its No Fins, No Future: Support AB 376 exhibition to help local sharks by spurring support for the passage of Assembly Bill, AB 376, which would ban the possession, sale, trade and distribution of shark fins in California. No Fins, No Future will highlight the importance of this legislation through a multimedia station, including WildAid's public service announcement by Yao Ming. An action station will...


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
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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