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Latest Ichthyology Stories

2010-12-13 21:25:57

For the first time ever, scientists have found a difference in the way males and females of the same species of vertebrate see things "“ and that sexes likely use that difference to select their mates. Queen's PhD candidate Shai Sabbah, a Vanier Scholar, led a team of researchers who found that male and female cichlid fishes not only see things differently, but detect light in different ways as well. "It is difficult to say what color attracts the female the most, but we know that if we...

2010-12-07 15:07:00

LOS ANGELES, Dec. 7, 2010 /PRNewswire-USNewswire/ -- Non-profit organization Iemanya Oceanica (pronounced ya-MON-ja) today announced that Henry's Farmers Market, a growing Southern California grocery chain, has discontinued selling shark meat at its fresh seafood counter. The grocery chain took this important step in sustainability on September 2nd of this year after several meetings with Iemanya staff to discuss transitioning Henry's to sustainable seafood and receiving petitions by...

2010-12-06 18:04:00

HONOLULU, Dec. 6, 2010 /PRNewswire-USNewswire/ -- Scientific recommendations for improving information on population status and fishing of sharks will be considered this week at the annual meeting of the Western and Central Pacific Fisheries Commission (WCPFC). Scientists are recommending that the WCPFC adopt a three-phase shark research plan, identify species of concern, and make reporting on shark catches mandatory. Shark catch reporting has proved a challenge for some WCPFC member...

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2010-12-02 10:07:55

Adolescent great white sharks may be too weak to capture and kill large marine mammals The jaws of adolescent great white sharks may be too weak to capture and kill large marine mammals, according to a new study published in the Journal of Biomechanics by an international team of scientists. The researchers also found that, unlike mammals, sharks can maintain high bite forces no matter how widely their jaws are open, thanks to a unique jaw muscle arrangement that has helped them to be among...

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2010-11-28 08:35:00

A fisheries group decided on Saturday that half-a-dozen species of endangered sharks hunted on the high seas to satisfy a burgeoning Asian market for sharkfin soup are now protected in the Atlantic. The International Commission for the Conservation of Atlantic Tunas (ICCAT) said that scalloped, smooth and great hammerheads, along with oceanic white tip, cannot be targeted or kept if caught accidentally. Three other types of hammerhead sharks are also included in the ban, including smalleye,...

2010-11-27 11:16:00

Shark protections important, but not enough PARIS, Nov. 27, 2010 /PRNewswire-USNewswire/ -- Dr. Susan Lieberman, director of international policy for the Pew Environment Group, issued this statement today in response to decisions made at this year's meeting of the International Commission for the Conservation of Atlantic Tunas. "ICCAT member governments today adopted measures to protect oceanic whitetip and hammerhead sharks, but were unable to provide real protection for Atlantic...

2010-11-25 21:51:07

How the world's largest fish uses geometry and energy conservation to stay afloat They are the largest fish species in the ocean, but the majestic gliding motion of the whale shark is, scientists argue, an astonishing feat of mathematics and energy conservation. In new research published today in the British Ecological Society's journal Functional Ecology marine scientists reveal how these massive sharks use geometry to enhance their natural negative buoyancy and stay afloat. For most animals...

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2010-11-11 06:35:00

There may be many similarities between the importance of large predators in marine and terrestrial environments, researchers concluded in a recent study, which examined the interactions between wolves and elk in the United States, as well as sharks and dugongs in Australia. In each case, the major predators help control the populations of their prey, scientists said. But through what's been called the "ecology of fear" they also affect the behavior of the prey, with ripple impacts on other...

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2010-11-09 08:21:42

A new study shows how an amphibious fish stays alive for up to two months on land. It's all in the skin. Mangrove killifish are small fish"”only about an inch or two long"”that live in temporary pools in the coastal mangrove forests of Central and South America and Florida. During dry seasons when their pools disappear, the fish hole up in leaf litter or hollow logs. As long as they stay moist, they can survive for extended periods out of water by breathing air through their skin....

2010-10-29 18:57:15

Few fish are famed for their parenting skills. Most species leave their freshly hatched fry to fend for themselves, but not discus fish. Jonathan Buckley from the University of Plymouth, UK, explains that discus fish young feed on the mucus that their parents secrete over their bodies until they are big enough to forage. 'The parental care that they exhibit is very unusual,' says Buckley. Intrigued by the fish's lifestyle, Buckley's PhD advisor, Katherine Sloman, established a collaboration...


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
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.