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Latest Ichthyology Stories

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2010-02-04 14:24:40

Researchers from the University of Minnesota's Institute of Technology have found that the hydrodynamic environment of fish can shape their physical form and swimming style. The research, available on the Journal of Experimental Biology Web site, was sponsored by the National Science Foundation's National Center for Earth-surface Dynamics. Catch a glimpse of a fish's body shape, and you can often guess how speedy it is. Tuna and mackerel look as if they should outpace frilly reef fish and...

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2010-01-10 10:15:00

Case study: Juvenile Salmon Acoustic Telemetry System detected 98 percent of tagged fish A new acoustic telemetry system tracks the migration of juvenile salmon using one-tenth as many fish as comparable methods, suggests a paper published in the January edition of the American Fisheries Society journal Fisheries. The paper also explains how the system is best suited for deep, fast-moving rivers and can detect fish movement in more places than other tracking methods. The Juvenile Salmon...

2009-12-01 13:58:28

Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert. In a method analogous to analyzing human fingerprints, scientists can make identifications by precisely comparing shark bites to the jaws and teeth of the powerful predators, said George Burgess, director of the International Shark Attack File, which is housed at UF's Florida Museum of...

2009-11-15 16:08:00

PORTO DE GALINHAS, Brazil, Nov. 15 /PRNewswire-USNewswire/ -- After meeting for ten days, the International Commission for the Conservation of Atlantic Tunas (ICCAT) refused to end fishing for Atlantic bluefin tuna. Instead, ICCAT set the catch limit for bluefin, considered the most valuable fish in the sea, at 13,500. Member countries also agreed on only one measure that will help conserve sharks in the Atlantic, a ban on the retention and landing of big eye threshers, but Mexico was...

2009-10-29 13:47:00

Researchers gained 3 more Sharks for Adoption WOODLAND HILLS, Calif., Oct. 29 /PRNewswire-USNewswire/ -- Non-profit organization Iemanya Oceanica today announced the addition of 3 newly tagged whale sharks to their family of sharks for research and conservation. The 3 new sharks are available to the public for adoption online and represent the need for urgent conservation of sharks. The organization's Adopt A Shark Program now has a total of 10 sharks that, with the aide of the tags,...

2009-09-29 12:41:35

Just as people plug in to computers, smart phones and electric outlets to communicate, electric fish communicate by quickly plugging special channels into their cells to generate electrical impulses, University of Texas at Austin researchers have discovered. The fish generate electric fields to navigate, fight and attract mates in murky streams and rivers throughout Central and South America. They do so at night, while trying to avoid predators such as catfish that sense the electric fields....

2009-09-23 21:22:21

Officials said 1,261 live fish, including seven sharks, have arrived in Britain following a 4,000-mile plane ride from Barbados. Biologists with the National Marine Aquarium in Plymouth, England, said only 21 small fish died before the plane was unloaded in Exeter, England. The rest were taken to the aquarium, The Sun reported Wednesday. The fish, which came from a Barbados aquarium, include four 10-foot-long nurse sharks and three 6-foot-long blacktip reef sharks. The pilot could feel the...

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2009-09-22 09:15:00

Ancient and bizarre fish named by California Academy of Sciences researchers New species are not just discovered in exotic locales"”even places as urban as California still yield discoveries of new plants and animals. Academy scientists recently named a new species of chimaera, an ancient and bizarre group of fishes distantly related to sharks, from the coast of Southern California and Baja California, Mexico. The new species, the Eastern Pacific black ghostshark (Hydrolagus...

2009-09-01 09:41:11

Steep reductions in the abundance of fish, shellfish, and other aquatic fauna in recent centuries are not restricted to animals that live in the sea: historical records show that species in rivers and lakes worldwide also experienced sharp declines. Yet the significance of these declines in freshwater species is frequently overlooked by natural resource managers, according to an article in the September 2009 issue of BioScience.Authors Paul Humphries and Kirk Winemiller argue that as a result...

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2009-09-01 08:25:00

In the open ocean, species of large predatory fish will swim and hunt for food at various depths, which leads to unique diets in these fish. Oceanographers and geologists in the School of Ocean and Earth Science and Technology (SOEST) at the University of HawaiÊ»i at Mānoa (UHM) and colleagues have found that those fish that hunt deeper in the open ocean have higher mercury concentrations than those that feed near the surface of the ocean because...


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
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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