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Latest Ichthyology Stories

2009-01-07 22:56:35

Israeli scientists say the idea that a fish has a memory span of only 3 seconds is a myth. Researchers at Israeli Technion Institute of Technology in Haifa said fish trained to remember a certain sound at feeding time reacted to the same sound after five months in the wild, The Daily Telegraph reported Wednesday. The researchers said the findings could help promote more natural fish farming techniques, allowing fish farmers to release trained fish into the wild to mature and then bring them...

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2008-12-31 11:20:00

Researchers announced on Tuesday that sharks have surprisingly weak bites for their mass and can decimate their prey simply because of their strong teeth. Their investigations of their jaws indicate that lions or tigers are much stronger when it comes to jaw force, but sharks win frequently in the water due to their extensive jaw size. "Pound for pound, sharks don't bite all that hard," said Daniel Huber of the University of Tampa in Florida, leader of the investigation. Huber and his...

2008-12-18 19:47:38

A fisherman seeking out marine life off the coast of Volusia County, Fla., said he caught a 663-pound hammerhead shark. The commercial fisherman said the shark, which measured more than 13 feet in length, was reeled in Wednesday, WESH-TV, Orlando, Fla., reported Thursday. Experts said hammerhead sharks can grow to reach lengths of more than 20 feet.

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2008-12-01 16:25:00

The University of Florida, keeper of the world's shark attack records, is also now overseeing a national records collection for another toothy marine predator: the sawfish. Distinguished by a long rostrum or "saw" that makes it a popular curio item and gives it its name, the sawfish has become a historical and cultural icon that is rapidly disappearing, said George Burgess, a UF ichthyologist and curator of both the International Shark Attack File and the newly expanded National Sawfish...

2008-11-25 11:55:00

A new bilingual online information system created by D. Ross Robertson, staff scientist at the Smithsonian Tropical Research Institute, and Coeus Knowledge Systems makes it possible for conservationists, sport fishers, tourists, researchers, students and resource managers to identify and generate publishable maps for 1,287 tropical eastern Pacific shore fish species. Shorefishes of the Tropical Eastern Pacific Online Information System is hosted by the Bioinformatics Office of the institute...

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2008-11-10 11:05:00

Sharks in the North Atlantic are in serious danger of being driven out of existence due to the fishing activities of nations such as Spain, Portugal, France and Britain, according to Swiss-based International Union for Conservation of Nature (IUCN). The group said action must be taken immediately in order to change the current downward trend. Among new changes, the IUCN said tougher fishing controls would be needed in the European Union. A zero catch for spiny dogfish and all deepwater sharks...

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2008-11-03 13:00:00

The rising demand for shark fin soup in Asia is spurring illegal fishing and contributing to a plunge in stocks, according to a report on Monday. The Australian government and the wildlife trade-monitoring network Traffic, published the study urging governments to crack down on illegal catches. Registered legal shark exports totaled $310 million worldwide in 2005, up from $237 million in 2002. "As the world's demand for sharks continues to grow, shark populations are plummeting," the report...

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2008-10-29 08:10:00

Atlantic sharks may have hope for the future thanks to an international team of scientists who want to ban the catching of eight species. They want to add a strict limit on the catch of two others to try to prevent population crashes. Sharks are vulnerable to over-fishing because they reproduce and grow slowly. However, there are currently no international limits on shark catch according to the non-profit Lenfest Ocean Program. The group found in a study that 10 species of Atlantic sharks...

2008-10-28 12:30:00

Canadian and U.S. biologists say they have, for the first time, successfully tracked juvenile salmon in both rivers and oceans. The achievement, officials said, was made possible by newly developed miniature tagging and tracking technologies that can follow small salmon over vast distances. "It may have been one of humankind's first ponderings: the fish that got away -- where they come from, where they go and what happens to them in between," said Jim Bolger, executive director of the...

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2008-10-28 08:50:00

The European Union is granting more protection to exotic deepwater fish, some of which can live up to 150 years. Fisheries ministers agreed to major quota cuts for the next two years.Exotic fish like forkbeard, black scabbardfish, greater silver smelt and roundnose grenadier grow and reproduce far more slowly than fish in shallower waters.These deep sea species have become an attractive catch as trawlers switch from their regular fishing grounds due to the depletion of mainstay commercial...


Latest Ichthyology Reference Libraries

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...

Whitespotted Bamboo Shark, Chiloscyllium plagiosum
2013-01-12 08:06:13

This harmless shark is native to the Pacific Ocean off the coast of Indonesia, it is also found in coastal waters from Japan to India. It lives on the ocean floor in shallow areas around coral reefs, hiding during the day and feeding at night. In Taiwan and Madagascar the whitespotted bamboo shark is used for food. Occasionally this species is kept in home aquariums as pets. The young whitespotted bamboo shark will have a black body covered with white and light blue spots and dark vertical...

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