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Fish

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A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.

For more information about Fish, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with fish

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Asian carp may have breached barrier protecting Lake Michigan

Biology / Ecology

created Nov 24, 2009 | popularity 5 / 5 (5) | comments 0

Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago.


Fish food fight: Fish don't eat trees after all, says new study

Fish food fight: Fish don't eat trees after all, says new study

Biology / Ecology

created Nov 24, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- What constitutes fish food is a matter of debate. A high-profile study a few years ago suggested that fish get almost 50 percent of their carbon from trees and leaves, evidence for a very ...


Experts think toxic algae harming endangered fish

Biology / Ecology

created Nov 25, 2009 | popularity not rated yet | comments 0

(AP) -- Scientists say they think toxins from a blue-green algae plaguing lakes and rivers around the West are harming an endangered fish in the Klamath Basin, adding another obstacle to restoring species that have forced ...





Search results for fish


Overeating can set stage for obesity, researchers say

Medicine & Health / Health

created Nov 27, 2009 | popularity 5 / 5 (1) | comments 2

It doesn't seem like a fair fight. In one corner loomed the Thanksgiving table, groaning with poultry, pie and mashed potatoes.


In Greenland, warming fuels dream of hidden wealth (AP)

In Greenland, warming fuels dream of hidden wealth

Space & Earth / Environment

created Nov 27, 2009 | popularity 3.5 / 5 (4) | comments 1

(AP) -- Gert Ignatiussen returns to this fjord-front Inuit town with the spoils of his hunting trip. Six seals, all killed with a single shot to the head.


Hammerhead shark

Wide heads give hammerheads exceptional stereo view

Biology / Plants & Animals

created Nov 27, 2009 | popularity 4.6 / 5 (8) | comments 4

Hammerhead sharks are some of the Ocean's most distinctive residents. 'Everyone wants to understand why they have this strange head shape,' says Michelle McComb from Florida Atlantic University. One possible ...


Study explores violent world of raptors

Biology / Plants & Animals

created Nov 25, 2009 | popularity 5 / 5 (1) | comments 0

A journey that started with a box of bird feet carried three Montana State University graduate students into the gruesome world of raptors and led to their findings being published in a prominent journal.


Autism treatment: Risky alternative therapies have little basis in science

Medicine & Health / Diseases

created Nov 24, 2009 | popularity 3 / 5 (2) | comments 0

James Coman's son has an unusual skill. The 7-year-old, his father says, can swallow six pills at once. Diagnosed with autism as a toddler, the Chicago boy had been placed on an intense regimen of supplements and medications ...


Ice Cold: Cooler Than Being Cool

Ice Cold: Cooler Than Being Cool

Biology / Cell & Microbiology

created Nov 24, 2009 | popularity 4.2 / 5 (10) | comments 0

(PhysOrg.com) -- Water expands when it freezes. Anyone who has ever left a can of soda or bottle of water in the freezer too long has witnessed this first hand. So how do plants and animals survive severe ...


Global study of salmon shows: 'Sustainable' food isn't so sustainable

Space & Earth / Environment

created Nov 24, 2009 | popularity 4.8 / 5 (4) | comments 1

Popular thinking about how to improve food systems for the better often misses the point, according to the results of a three-year global study of salmon production systems. Rather than pushing for organic or land-based ...


Rocket science leads to new whale discovery

Rocket science leads to new whale discovery

Biology / Other

created Nov 24, 2009 | popularity not rated yet | comments 0

Rocket science is opening new doors to understanding how sounds associated with Navy sonar might affect the hearing of a marine mammal - or if they hear it at all.


Polyphenols and polyunsaturated fatty acids boost the birth of new neurons

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

Universitat Autňnoma de Barcelona (UAB, Spain) researchers have confirmed that a diet rich in polyphenols and polyunsaturated fatty acids, patented as an LMN diet, helps boost the production of the brain's stem cells ...


Aquatic creatures mix ocean water

Physics / General Physics

created Nov 22, 2009 | popularity 5 / 5 (4) | comments 1

Understanding mixing in the ocean is of fundamental importance to modeling climate change or predicting the effects of an El Niño on our weather. Modern ocean models primarily incorporate the effects of winds and tides. However, ...



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