Other water-dwelling animals such as mollusks, crustaceans, and shellfish are often called "fish" when Fish as food Fish are an important source of food in many cultures. The authors recommended immediate drastic cutbacks in fish catches and reservation of ocean habitats worldwide. [1] Particularly imperiled were sharks, Atlantic cod, Bluefin tuna, and Pacific sardines.
On May 15, 2003, the journal Nature reported that all large oceanic fish species worldwide had been so systematically over caught that fewer than 10% of 1950 levels remained. Overfishing is a threat to many species of fish. The annual yield from all fisheries worldwide is about 100 million tonnes. Catching fish for the purpose of food or sport is known as fishing.
Some species of fish have been specially bred to be kept and displayed in an aquarium, and can survive in the home environment. However, hyper-saline lakes like the Great Salt Lake do not support fishes. // Fish ecology Fish can be found in almost all large bodies of water in salt, brackish or fresh water, at depths from just below the surface to several thousand meters. Endothermy, though metabolically costly, is thought to provide advantages such as increased contractile force of muscles, higher rates of central nervous system processing, and higher rates of central nervous system processing, and higher rates of central nervous system processing, and higher rates of central nervous system processing, and higher rates of digestion.
See also gigantothermy. The degree of endothermy varies from the billfish, which warm only their eyes and brain, to bluefin tuna and porbeagle sharks who maintain body temperatures elevated in excess of 20 °C above ambient water temperatures. All sharks in the family Lamnidae – shortfin mako, long fin mako, white, porbeagle, and salmon shark – are known to have the capacity for endothermy, and evidence suggests the trait exists in family Alopiidae (thresher sharks). Endothermic teleosts (bony fishes) are all in the suborder Scombroidei and include the billfishes, tunas, and one species of "primitive" mackerel (Gasterochisma melampus). Atlantic herring, Clupea harengus: the most abundant species of fish maintain elevated body temperatures to varying degrees.
For other uses, see Fish (disambiguation).
Pet Health Diagnosis Information
pet health diagnosis
Sleep disorder diagnosis is uneven among the four ethnic groups. The 2010 poll found that sleep disorders continue to be very common among the adults surveyed, with specific disorders occurring at different frequency among the four groups. *
Read morePoll Reveals Sleep Differences Among Ethnic Groups - Redorbit.com
Autism Action Network have reported that the key scientist involved in studies proving that there was no link to thimerosal in vaccines and autism has forged documents and absconded with $2 Million. Poul Thorsen MD Phd, a scientist at the Unversity ...
Read moreForged documents and a scientist who absconds with $2 million puts ... - American Chronicle
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Read moreUseful Pet Health Diagnosis Sites
Pets In Heaven
Services include the collection of your pet from your home or vet as well as offering individual pet cremation. Melbourne, Australia.
Use of Alternative Remedies in Pets
International Veterinary Information Service - Scientific article on giving herbs, flower essences and homeopathic remedies to pets.
Pets.com.sg
Pet owner community with forums. Has photo albums and newsletters.
Passports for Pets
Organisation focused on reforming the UK rabies quarantine laws for dogs and cats entering the country.
Go-Pets
A membership club for pet owners with articles, pictures, tips, and message boards about pets, discounts for members to pet supply stores and pet insurances.
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