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Last updated on April 18, 2014 at 6:20 EDT

Latest Ichthyology Stories

Sharks And Rays Face Extinction
2014-01-23 15:00:41

Lee Rannals for redOrbit.com - Your Universe Online According to a new study published in eLife, a quarter of the world’s sharks and rays face extinction within the next few decades due to overfishing. The latest study is the first to survey the cartilaginous fish status throughout coastal seas and oceans, revealing that 249 out of 1,041 sharks and rays fall under three threatened categories on the International Union for Conservation of Nature's (IUCN) Red List. “We now know that...

War On Lionfish Can Aid In Recovery Of Native Fish
2014-01-23 14:17:58

Oregon State University It may take a legion of scuba divers armed with nets and spears, but a new study confirms for the first time that controlling lionfish populations in the western Atlantic Ocean can pave the way for a recovery of native fish. Even if it’s one speared fish at a time, it finally appears that there’s a way to fight back. Scientists at Oregon State University, Simon Fraser University and other institutions have shown in both computer models and 18 months of...

2014-01-21 08:27:48

GLAND, Switzerland, Jan. 21, 2014 /PRNewswire-USNewswire/ -- A quarter of the world's sharks and rays are threatened with extinction, according to IUCN Red List(TM) criteria, with rays at greater risk than sharks. The findings, published today in the journal eLife, are part of a global assessment of 1,041 species conducted by the IUCN Shark Specialist Group. Ray and sharks are at substantially higher risk than most other groups of animals and have the lowest percentage of species...

2014-01-18 23:00:33

Newport Aquarium announced Saturday that Sweet Pea, the first shark ray to go on display in the Western Hemisphere, is pregnant – marking the first time a shark ray has become pregnant while in a controlled environment. Newport, KY (PRWEB) January 18, 2014 Newport Aquarium announced Saturday that Sweet Pea, the first shark ray to go on display in the Western Hemisphere, is pregnant – marking the first time a shark ray has become pregnant while in a controlled environment. This...

New Fish Fossil Reveals How Fins May Have Become Hind Limbs
2014-01-14 06:11:22

[ Watch the video: Tiktaalik roseae fossils reveal evolution of hind limbs ] April Flowers for redOrbit.com - Your Universe Online The evolution of hind legs actually began as enhanced hind fins, according to the newly discovered, well-preserved pelvis and a partial pelvic fin from Tiktaalik roseae—a 375 million-year old transitional species between fish and the first legged animals. The findings, published in Proceedings of the National Academy of Sciences (PNAS), challenge the...

African Tiger Fish Eats Bird
2014-01-13 11:30:38

Brett Smith for redOrbit.com - Your Universe Online Stories of the African tiger fish preying on birds in mid-flight have been circulating for years and a research team from South Africa has finally captured evidence of this behavior, according to a new study in the Journal of Fish Biology. “The whole action of jumping and catching the swallow in flight happens so incredibly quickly that after we first saw it, it took all of us a while to really fully comprehend what we had just...

Biofluorescence In Fish
2014-01-09 15:16:51

[ Watch the Video: Strange Lights In The Deep, Dark Ocean? ] Brett Smith for redOrbit.com - Your Universe Online A new study in the journal PLOS ONE has revealed biofluorescence in over 180 fish species and opened the door to the discovery of new fluorescent proteins that could be used in biomedical research. When organisms biofluoresce, they absorb light, convert it, and send it back out as a different color. "We've long known about biofluorescence underwater in organisms like...

Great Whites Older Than Thought
2014-01-09 10:48:21

[ Watch the Video: Great White Sharks Live Long And Prosper ] Brett Smith for redOrbit.com - Your Universe Online Great white sharks have always been considered one of the longer living fish, but a new study in the journal PLOS ONE has found that they actually live much longer than previously believed. Using a radiocarbon analysis, study researchers from the Woods Hole Oceanographic Institution (WHOI) and National Oceanic and Atmospheric Administration (NOAA) discovered that male...

Coral Reefs Tracking Tiger Sharks
2014-01-09 09:02:01

Brett Smith for redOrbit.com - Your Universe Online A new study tracking the migratory patterns of tiger sharks in the waters near Australia revealed just how important coral reefs are to the survival of this feisty predator. The study was published in the journal PLOS ONE on Wednesday and showed that coastal marine parks provide only temporary protection for the sharks. "In this study we looked at migratory movements and fidelity to specific reefs for tiger sharks tagged in New...

Elephant Shark DNA Decoded
2014-01-08 15:35:28

Ranjini Raghunath for redOrbit.com - Your Universe Online An international team of scientists has deciphered the genetic blueprint of the elephant shark - the oldest living animal in the cartilaginous fish family and the first to have its DNA decoded. Among fish, cartilaginous fish such as sharks and rays stand out because their skeleton is not made of bones. Their body is supported instead by cartilage, a flexible tissue that resembles muscle. Analysis of the elephant shark’s DNA...


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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