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Latest Ichthyology Stories

Sharks Endangered Globally Due To Overfishing
2013-03-03 06:30:53

redOrbit Staff & Wire Reports - Your Universe Online Overfishing kills an average of 100 million sharks worldwide each year, according to new research highlighting the dangers faced by many different species of fish as they attempt to avoid possible extinction. According to Dan Stone of National Geographic Magazine, biologists from  Dalhousie University in Canada and colleagues used data obtained from global shark catch reports and nearly 100 past research papers to estimate...

California Great White Sharks May Get Endangered Species Status
2013-02-07 14:59:48

Brett Smith for redOrbit.com - Your Universe Online On Wednesday, California's Fish and Game Commission recommended that the endangered status be given to great white sharks in the waters under their jurisdiction. Based on a recent population survey that found fewer than 340 adult sharks inhabiting the two principal feeding areas off the central California coast and the Baja Peninsula in Mexico, the five-member commission voted unanimously to designate the great white as a candidate for...

2013-02-06 23:02:06

Ali Gilmore, author of the humorous and uplifting cancer survival guide, will donate up to $90,000 to Fin Forward, a San Diego based non-profit that provides shark and other marine life encounters for cancer survivors. San Diego, California (PRWEB) February 06, 2013 Ali Gilmore is determined to be more than a story about beating the odds of late stage cancer survival. She wants to inspire people to face their fears and enjoy life now, regardless of what obstacles come their way, and to get...

2013-02-06 16:07:28

Same-sized fish stick together, using chemical cues to identify each other Have you ever wondered why, and how, shoals of fish are comprised of fish of the same size? According to new research by Ashley Ward, from the University of Sydney in Australia, and Suzanne Currie, from Mount Allison University in Canada, fish can use a variety of different sensory cues to locate shoal-mates, but they are able to use chemical cues to find other fish of the same size as themselves. Using these cues,...

2013-02-06 16:02:40

Perceived risk of predation increased acceptance of immigrants into group Cichlid fish are more likely to accept immigrants into their group when they are under threat from predators and need reinforcements, new research shows. The researcher suggests that there are parallels between cooperatively breeding fish's and humans' regulation of immigrants. The research was published today, 6 February 2013, in the journal Proceedings of the Royal Society B. The Princess of Lake Tanganyika...

High-Tech Robotic Fish Glides Through Water With Great Ease
2013-01-17 12:54:52

Lee Rannals for redOrbit.com — Your Universe Online Scientists from the Michigan State University made a number of improvements on a high-tech robotic fish. The new fish, called Grace, was designed and built by Xiaobo Tan, an MSU associate professor of electrical and computer engineering, and his team. They equipped the new fish with an array of sensors, allowing it to travel autonomously through the water, as well as measure water temperature, quality and other pacts. These...

2013-01-14 10:30:20

Tiny coral reef wrasses can swim as fast as some of the swiftest fish in the ocean — but using only half as much energy to do so, Australian scientists working on the Great Barrier Reef have found. By flapping their fins in a figure-eight pattern, bluelined wrasses can travel at high speeds while using 40 per cent less energy than tunas of the same size. “For a long time, people thought the best high-speed swimmers were the fishes cruising in open waters, like mackerel and...

Snapshot Of Pupfish Evolution In Action
2013-01-10 15:28:17

University of California - Davis Chris Martin has bred more than 3,000 hybrid fish in his time as a graduate student in evolution and ecology at UC Davis, a pursuit that has helped him create one of the most comprehensive snapshots of natural selection in the wild and demonstrated a key prediction in evolutionary biology. "We can see a surprisingly complex snapshot of natural selection driving the evolution of new specialized species," said Martin, who with Professor Peter Wainwright...


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
kenspeckle
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'