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Latest Ichthyology Stories

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...

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2009-06-25 11:30:00

A major conservation survey assessed 64 species of open ocean sharks and rays and found that one third of them face extinction, including the great white shark. The study by the International Union for Conservation of Nature (IUCN) reported that species hunted on the high seas are particularly at great risk, with over half in danger of extinction. The IUNC named tuna and swordfish fisheries as the main culprits for their accidental "by-catch" of sharks. Sharks are also being increasingly...

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2009-06-18 05:40:00

Scientists have discovered that sticklebacks exhibit an advanced, sophisticated learning technique never before seen in the animal world.  The research reveals that the learning methods of fish may resemble that of humans more than previously believed. The study, conducted by researchers at St. Andrews University and Durham University in Britain, found that nine-spined sticklebacks can observe others to make better decisions. This ability to select the best food patch by comparing how...

2009-06-16 14:43:06

Officials involved in preserving fish in the Chicago River said the Fish Hotel, a series of underwater islands made of fish food, has opened for a fifth season. Margaret Frisbie, executive director of Friends of the Chicago River, said the Fish Hotel, which from outside of the water looks like a garden on top of the water, involves submerged islands of coconut fiber to provide the river's fish with a healthy food source, the Chi-Town Daily News reported Tuesday. It's important because there...

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2009-06-10 15:35:00

How fast can evolution take place? In just a few years, according to a new study on guppies led by UC Riverside's Swanne Gordon, a graduate student in biology.Gordon and her colleagues studied guppies "” small fresh-water fish biologists have studied for long "” from the Yarra River, Trinidad. They introduced the guppies into the nearby Damier River, in a section above a barrier waterfall that excluded all predators. The guppies and their descendents also colonized the lower...

2009-06-08 14:11:10

U.S. scientists looking at adaptation and survival in a wild population found guppies can adapt to new surroundings in just a few years. A research team led by Swanne Gordon from the University of California-Riverside found guppy populations introduced into new habitats developed new and advantageous traits in just a few years. Gordon and colleagues studied 200 guppies that had been taken from the Yarra River in Trinidad and introduced into two different environments in the nearby Damier...


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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