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Latest Ichthyology Stories

Ocean Warming Is Shrinking Fish Size
2012-10-01 09:33:57

Brett Smith for redOrbit.com - Your Universe Online New research by a team of North American scientists indicates that warmer water may cause shrinkage in average fish size and populations of fish stocks. "We were surprised to see such a large decrease in fish size," said William Cheung, a professor at the University of British Columbia and lead author of a report on the team´s research that was published in the journal Nature Climate Change. "Marine fish are generally known to...

White Shark Diet Varies By Individual
2012-09-30 08:52:34

April Flowers for redOrbit.com - Your Universe Online White sharks are the largest predatory sharks in the ocean. They are thought of as apex predators, animals who as adults have no natural predators of their own in their natural ecosystem. Marine scientists have long known that white sharks feed on seals and sea lions, but a new study from the University of California, Santa Cruz demonstrates that there is surprising variability in the diets of individual sharks. The research team...

Clues Captured For Sustainability Of Fish Populations
2012-09-28 10:33:22

Thanks to studies of a fish that gives birth to live young and is not fished commercially, scientists at UC Santa Barbara have discovered that food availability is a critical limiting factor in the health of fish populations. The scientists were able to attach numbers to this idea, based on 16 years of data. They discovered that the availability of enough food can drive up to a 10-fold increase in the per capita birthrate of fish. And, with adequate food, the young are up to 10 times more...

First-time Analysis Provided Of 3 Distinct Contributions Of Forage Fish Worldwide
2012-09-10 11:43:12

Study led by scientists from the Institute for Ocean Conservation Science at Stony Brook University will enable trade-offs to be evaluated in forage fishery and coastal management A just-published study provides a first-time analysis of the value of forage fish, which are small, schooling species such as sardines, herring, and anchovies. Three kinds of contributions of forage fish were estimated: as direct catch, as food for other commercially important fish, and as an important link in...

Sharks And Rays Need More Protection From Overfishing
2012-09-05 05:41:31

April Flowers for redOrbit.com - Your Universe Online At the IUCN's World Conservation Congress in Jeju, Korea, this week, the Wildlife Conservation Society (WCS) and over 35 other government agencies and NGO (non-governmental organizations) partners urged the world's governments to take urgent steps to save sharks and rays from the relentless pressure of overfishing for international trade. The WCS-led consortium is specifically advocating for the listing of sharks and rays under the...

Coral Reef Fish Connections Are Much More Complex
2012-09-04 04:00:27

April Flowers for redOrbit.com - Your Universe Online Ocean scientists have known for a long time that juvenile coral reef fishes use coastal seagrass and mangrove habitats as nurseries, before they move into the coral reefs as adults. According to a study published in Proceedings of the National Academy of Sciences, the fishes' movements, and the connections between different tropical habitats, are much more complex than previously realized. Despite several studies that have...

shutterstock_78260350
2012-08-24 19:32:28

Lee Rannals for redOrbit.com — Your Universe Online [ Watch the Video ] Simulations have helped scientists answer some lingering questions regarding the evolution of fish group formation. Researchers reported in the journal Science that they have found evidence that collective motion in animal groups like schools of fish can evolve as a finely tuned defense against attack from predators. Iain Couzin, an assistant professor of ecology and evolutionary biology at Princeton who...

2012-08-17 23:02:03

Tracking Jaws - non-profit Ocearch brings Global Shark Tracking to US San Francisco, California (PRWEB) August 17, 2012 With the nation captivated by sharks this week, OCEARCH is preparing to deploy its technology in U.S. waters to solve a 400 million year old mystery of the Great White Sharks in Cape Cod this September. OCEARCH, a 501(c)(3) non-profit, supports leading researchers and institutions obtaining ground breaking data on the health and biology of sharks. They deliver unparalleled...

Conservation Groups Want Protection For California Sharks
2012-08-14 14:24:13

Brett Smith for redOrbit.com - Your Universe Online As the Discovery Channel kicks off its annual Shark Week, conservation groups are petitioning the government to protect the ferocious ocean predators living off the coast of California. Citing a declining population, Oceana, The Center for Biological Diversity, and SharkStewards filed a scientific petition with the National Marine Fisheries Service seeking to protect great white sharks living off the West Coast under the Endangered...

Shark Fin Soup In US Restaurants Contain Threatened Species
2012-08-09 12:42:46

Lawrence LeBlond for redOrbit.com - Your Universe Online The plight of the shark has been a hot topic for conservationists as of late, most appalled by the continuing presence of shark hunting that ends up with many threatened species being mutilated only for their precious fins for use in the popular Chinese delicacy shark fin soup. Shark fin soup has been a popular Chinese dish for decades, but new evidence is surfacing that threatened sharks are turning up in shark fin soup in many...


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
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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