News tagged with fish
Why are there so few fish in the Earth's oceans?
(PhysOrg.com) -- A Stony Brook University researcher has found that, contrary to popular belief, there are not plenty of fish in the sea.
Feb 08, 2012 |
4.3 / 5 (22) |
28
|
Evolution at warp speed: Hatcheries change salmon genetics after a single generation
The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive ...
Dec 19, 2011 |
4.4 / 5 (14) |
100
|
Carbon dioxide affecting fish brains: study
Rising human carbon dioxide emissions may be affecting the brains and central nervous systems of sea fish, with serious consequences for their survival, according to new research.
Jan 16, 2012 |
4.1 / 5 (15) |
15
Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
Since the explosion on the BP Deepwater Horizon drilling rig in the Gulf of Mexico on April 20, 2010, scientists have been working to understand the impact that this disaster has had on the environment. For ...
Mar 20, 2012 |
4.2 / 5 (13) |
2
|
Scientists discover fish using tools may be wide spread
Dr. Culum Brown, who recently made headlines publishing the first photographic evidence of a tusk fish using tools to smash open shells says, “There is an increasing body of evidence that suggests that ...
Dec 01, 2011 |
4.7 / 5 (11) |
4
|
Restaurants plan DNA-certified premium seafood
(AP) -- Restaurants around the world will soon use new DNA technology to assure patrons they are being served the genuine fish fillet or caviar they ordered, rather than inferior substitutes, an expert in genetic identification ...
Nov 27, 2011 |
4.1 / 5 (10) |
14
Global warming changes balance between parasite and host in fish
(PhysOrg.com) -- Parasitic worms that infect fish, and have a devastating effect on fish reproduction, grow four times faster at higher temperatures – providing some of the first evidence that global warming affects ...
Dec 04, 2011 |
4.1 / 5 (9) |
6
|
Gone fishing? We have for 42,000 years
(PhysOrg.com) -- An archaeologist from The Australian National University has uncovered the world’s oldest evidence of deep sea fishing for big fish, showing that 42,000 years ago our regional ancestors ...
Other Sciences / Archaeology & Fossils
Nov 25, 2011 |
4.5 / 5 (8) |
5
|
Research shows ocean bacteria glow to attract those that would eat them
(PhysOrg.com) -- In most situations in the wild, animals develop abilities to help them avoid being eaten. The chameleon, for example, can change its color to avoid being seen by predators. What’s less usual, are animals ...
Dec 28, 2011 |
4 / 5 (9) |
4
|
A new theory emerges for where some fish became four-limbed creatures
A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image ...
Other Sciences / Archaeology & Fossils
Dec 27, 2011 |
4.3 / 5 (8) |
6
|
New Yorkers bring fish farms to urban jungle
So you recycle, drive a small car, and try to eat organic. But what about running an eco-sustainable fish farm combined with a naturally fertilized vegetable patch in your kitchen?
Apr 27, 2012 |
4.9 / 5 (7) |
4
Antibiotic resistant bacteria proliferate in agricultural soils
Infectious diseases kill roughly 13 million people worldwide, annually, a toll that continues to rise, aided and abetted by resistance genes. Now a study, published in the March Antimicrobial Agents and Chemotherapy finds ...
Mar 20, 2012 |
4 / 5 (8) |
0
|
Australia plans world's largest marine reserve
The Australian government has said it plans to establish the world's biggest marine protection zone to safeguard a huge swathe of the Coral Sea, a biodiversity hotspot brimming with life.
Nov 25, 2011 |
5 / 5 (6) |
1
Study of fish fossil shows that 'head-first' diversity drives vertebrate evolution
The history of evolution is periodically marked by explosions in biodiversity, as groups of species try out a wide range of shapes and sizes. With a new analysis of two such adaptive radiations in the fossil ...
Dec 20, 2011 |
5 / 5 (6) |
8
|
'20 tonnes of herring' washed up on Norwegian coast
Thousands of herring have floated ashore on Norway's western coast, leaving experts perplexed about the phenomenon, according to the Norwegian Institute of Marine Research.
Jan 03, 2012 |
5 / 5 (6) |
19
Fish
Tetrapods
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.
