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Latest Ichthyology Stories

Novel Study Sheds Light On Early Life Of Prolific Predator
2011-12-17 04:46:16

University of Miami team sinks teeth into larval life of barracuda, sennets For anglers and boaters who regularly travel the coasts of Florida the great barracuda (Sphyraena barracuda) is a common sight. Surprisingly, however, very little is known about the early life stage of this ecologically and socio-economically important coastal fish. In the journal Marine Biology, lead author Dr. Evan D'Alessandro and University of Miami Rosenstiel School of Marine & Atmospheric Science...

2011-12-16 14:13:45

The majority can benefit when individuals are uninformed From shoals of fish to human society: social organisms need to make collective decisions. And it is not always the majority that prevails. In some cases, a small, resolute group may succeed in bending the whole community to their will. Using computer models and behavioral studies of fish, a team of scientists, including researchers from the Max Planck Institute for the Physics of Complex Systems in Dresden, has discovered that...

2011-12-15 16:33:08

An international team of researchers studying sound production in perch-like fishes has discovered a link between two unrelated lineages of fishes, taking researchers a step closer to understanding the evolution of one of the fastest muscles in vertebrates. Understanding the evolution of such fast muscles has been difficult for researchers because slow movement of a swimbladder does not generate sound. In a study published online Nov. 29 in the journal Frontiers in Zoology, Virginia...

2011-12-14 19:47:11

Study focuses on oxygen minimum zones in NE Atlantic and effects on pelagic species The science behind counting fish in the ocean to measure their abundance has never been simple. A new scientific paper in Nature Climate Change shows that expanding 'ocean dead zones' (areas of low oxygen) driven in part by climate change makes that science even more complex. Blue marlin, other billfish and tropical tuna are high energy fish that need large amounts of dissolved oxygen. Scientists from...

African Lungfish Research Hints At New Evolutionary Step
2011-12-13 13:44:14

Researchers have revealed that the African lungfish can use its thin pelvic limbs to propel itself forward. The team's discovery reshuffles the order of evolutionary events leading up to creatures being able to walk, and also suggests that fossil tracks long thought to be the work of early tetrapods could have been produced instead by lobe-finned ancestors of the lungfish. "In a number of these trackways, the animals alternate their limbs, which suggested that they must have been made...

Fish Follow The Rules To School
2011-11-08 10:28:20

The rules of school are simple: it is all about watching the kid nearest to you and making sure you do what they do. Researchers at the mathematics department at Uppsala University, together with biologists at Sydney University have shown that fish apply similar rules when traveling in small shoals. Some of the most mesmerizing sights in the natural world are seen in the collective motion of fish schools and shoals. In the ocean, vast schools of hundreds of thousands of fish can form which...

Nearly All Vertebrates Descended From Ancestor With Sixth Sense
2011-10-12 04:49:05

A new study finds that sharks, paddlefishes and certain other aquatic vertebrates have a sixth sense: the ability to detect weak electrical fields in the water, and to use this information to detect prey, communicate and orient themselves. The study, which caps more than a quarter century of work, found that the vast majority of vertebrates — roughly 30,000 species of land animals (including humans) and a roughly equal number of ray-finned fishes — descended from a common...


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
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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