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Latest Ichthyology Stories

2011-09-21 15:00:00

Undersea Explorer, Scott Cassell Unveils Alarming New Revelations on Shark Species at Brink of Extinction during World-Record Dive Attempt in California Los Angeles, CA (PRWEB) September 21, 2011 On Saturday, September 17th undersea explorer and combat diver Scott Cassell completed a 30-mile dive from Catalina Island to San Pedro, California. The astonishing feat that pushed his body to the physical edge, even causing him to black out underwater for a brief period, was all in an effort to...

Image 1 - Salmon, Other Fish Predators Rely On 'No Guts, No Glory' Survival Tactic
2011-09-18 05:36:09

  The phrase "no guts, no glory" doesn't just apply to athletes who are striving to excel. Salmon and other fish predators take the adage literally, by having up to three times the "gut" capacity they need on a daily basis just so they can "glory" when prey is abundant, University of Washington researchers have discovered. It's a previously unrecognized survival tactic that might apply to other top predators, such as wolves, lions and bears, according to Jonathan Armstrong, a UW...

Warming Seas Affect European Fish Stocks
2011-09-16 12:45:27

  The first "big picture" study of the effects of rapidly rising temperatures in the northeast Atlantic Ocean shows that a major shift in fish stocks is already well underway. But it isn't all bad news. The research, published Sept. 15 in Current Biology, shows that some fishes' losses are other fishes' gain. The study led by Dr Steve Simpson of the University of Bristol in collaboration with researchers from eight other institutions, is the first to combine a suite of European...

2011-08-30 18:55:05

One of the world's strangest animals — a unique fish that lives on land and can leap large distances despite having no legs — has a rich and complex social life, a new study has found. The odd lifestyle of the Pacific leaping blenny (Alticus arnoldorum) has been detailed for the first time in research findings that throw new light on how animal life first evolved to colonies the land. The Pacific leaping blenny is a marine fish yet is terrestrial in all aspects of its daily...

2011-07-11 17:50:52

Stocks of seabed-living fish in the Firth of Clyde have reached their highest level since 1927 "“ according to research by academics at the University of Strathclyde. However, the study, produced by Professor Mike Heath and Dr Douglas Speirs of the University's Marine Population Modelling Group in the Department of Mathematics and Statistics, shows that while fish are actually more abundant than ever, the majority are too small to be landed. The findings are part of extensive analysis...

2011-07-05 08:38:00

Bahamas National Trust, Pew applaud creation of permanent sanctuary NASSAU, Bahamas, July 5, 2011 /PRNewswire-USNewswire/ -- Sharks in The Bahamas can breathe more easily after the nation's government announced today that all commercial shark fishing in the approximately 630,000 square kilometers (243,244 square miles) of the country's waters is now prohibited. (Photo: http://photos.prnewswire.com/prnh/20110705/DC30111) "2011 is fast becoming the year of the shark," said Jill Hepp,...

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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...


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
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.