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Latest Ichthyology Stories

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2009-09-22 09:15:00

Ancient and bizarre fish named by California Academy of Sciences researchers New species are not just discovered in exotic locales"”even places as urban as California still yield discoveries of new plants and animals. Academy scientists recently named a new species of chimaera, an ancient and bizarre group of fishes distantly related to sharks, from the coast of Southern California and Baja California, Mexico. The new species, the Eastern Pacific black ghostshark (Hydrolagus...

2009-09-01 09:41:11

Steep reductions in the abundance of fish, shellfish, and other aquatic fauna in recent centuries are not restricted to animals that live in the sea: historical records show that species in rivers and lakes worldwide also experienced sharp declines. Yet the significance of these declines in freshwater species is frequently overlooked by natural resource managers, according to an article in the September 2009 issue of BioScience.Authors Paul Humphries and Kirk Winemiller argue that as a result...

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2009-09-01 08:25:00

In the open ocean, species of large predatory fish will swim and hunt for food at various depths, which leads to unique diets in these fish. Oceanographers and geologists in the School of Ocean and Earth Science and Technology (SOEST) at the University of HawaiÊ»i at Mānoa (UHM) and colleagues have found that those fish that hunt deeper in the open ocean have higher mercury concentrations than those that feed near the surface of the ocean because...

2009-08-28 10:16:36

Fish and some amphibians possess a unique sensory capability in the so-called lateral-line system. It allows them, in effect, to "touch" objects in their surroundings without direct physical contact or to "see" in the dark. Professor Leo van Hermmen and his team in the physics department of the Technische Universities Muenchen are exploring the fundamental basis for this sensory system. What they discover might one day, through biomimetic engineering, better equip robots to orient themselves...

2009-08-11 16:51:02

A 9-year-old Washington state boy said it took him almost an hour to land a 150-pound sixgill shark while fishing with his grandparents near Burien. Cosmo Miller, 9, said he used a 30-pound test line to reel in the shark while fishing last week with his grandparents in Puget Sound, The Seattle Times reported Friday. It was really hard, Cosmo said, but I had a really big fishing pole. The boy, who released the shark after taking pictures for posterity, said it wasn't his first encounter with a...

2009-08-10 13:05:03

A group of Florida boaters spear fishing and lobster diving said they received the shock of their lives when a bull shark jumped up on the deck of their vessel. Michael Powers said he and his friends were boating on a 21-foot vessel off Haulover Beach, Fla., Saturday when the 5 1/2 foot bull shark jumped onto the vessel, WSVN-TV, Miami, reported Monday. One minute it was in the air, the next minute it was in the boat just beating everything in God's creation, Powers said. It hit one of the...

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2009-07-28 16:15:00

 For avid fishermen and anglers, the largemouth bass is a favorite freshwater fish with an appetite for minnows. A new study finds that once they evolved to eat other fish, largemouth bass and fellow fish-feeders have remained relatively unchanged compared with their insect- and snail-eating cousins. As these fishes became top predators in aquatic ecosystems, natural selection put the breaks on evolution, say researchers.A highly sought-after game fish, the largemouth bass belongs to a...

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2009-07-24 08:40:00

 Acoustic tags and numerical river models are two technologies developed by researchers at the Department of Energy's Pacific Northwest National Laboratory that are helping improve salmon passage at the Columbia Basin's hydroelectric dams.PNNL researchers will discuss these technologies and how they make scientific contributions to the endangered fish's survival during group technical presentations at Waterpower XVI, a conference for professionals in the hydroelectric industry. The...

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2009-07-16 15:59:26

Eel fishing will be banned in the Netherlands for several months a year in a move to help protect the fish from extinction, the Dutch government said on Thursday. The measure would go into effect this year with a two-month ban beginning October 1.  From 2010 and beyond, a three-month prohibition would be in effect beginning in September.  The government said it will review the approach in 2012 to assess its overall effectiveness in protecting the eels, a delicacy in the...

2009-06-29 10:03:58

It might be assumed that aquarium fish don't mind who or what they encounter in their tanks from one minute to the next, if their famously (but incorrectly) short memory is to be believed. Scientists at the Universities of Plymouth and Exeter have carried out research to show this is not the case and are striving to improve conditions for keeping fish in home aquaria.In line with the aim to establish welfare guidelines for fish, these researchers have been collaborating with the WALTHAM...


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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  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
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