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A fish is a water-dwelling vertebrate with gills. Most are cold-blooded. There are over 29,000 species of fish, making them the most diverse group of vertebrates. Taxonomically, fish are a paraphyletic group whose exact relationships are much debated; a common division is into the jawless fish (class Agnatha, 75 species including lampreys and hagfish), the cartilaginous fish (class Chondrichthyes, 800 species including sharks and rays), with the remainder classed as bony fish (class Osteichthyes).
Fish come in different sizes, from the 16 m (51 ft) whale shark to a 8 mm (just over ¼ of an inch) long stout infantfish. Many types of aquatic animals named "fish", such as jellyfish and cuttlefish, are not true fish. Other sea dwelling creatures, like dolphins, while closely resembling fish in outer appearance, are actually mammals.
Although most fish are exclusively aquatic and cold-blooded, there are exceptions to both cases. Fish from a number of different groups have evolved the capacity to live out of the water for extended periods of time. Of these amphibious fish some such as the mudskipper can live and move about on land for up to several days. Also, certain species of fish maintain elevated body temperatures to varying degrees. Endothermic teleosts (bony fishes) are all in the suborder Scombroidei and include the billfishes, tunas, and one species of "primitive" mackerel (Gasterochisma melampus). 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). 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. See also gigantothermy. 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 digestion.
More on [ Fish ]
Naked fish. nom nom
gmendozaaa (Geoff Mendoza) Thu, 31 Dec 2009 00:01:01 -0000
Naked fish. nom nom
Minter Creek Fish Hatchery helps Key Peninsula food banks http://bit.ly/4zRerA
HomeCleaningOne (Heavenly Home ) Thu, 31 Dec 2009 00:00:58 -0000
Minter Creek Fish Hatchery helps Key Peninsula food banks http://bit.ly/4zRerA
@lawrasaur MENWHILE: http://bit.ly/8xlbNO <- BOB. The Fish. It's sad b/c I got the best mark in the class, and this is horrid.
AmSay (Samantha Whipps) Wed, 30 Dec 2009 23:45:50 -0000
@lawrasaur MENWHILE: http://bit.ly/8xlbNO <- BOB. The Fish. It's sad b/c I got the best mark in the class, and this is horrid.
@inspiredmess Swedish fish are totally my favorite treat! I missed the boat for jan happy mail but i'm definitely in for feb =)
toastmonsters (cait ) Wed, 30 Dec 2009 23:21:41 -0000
@inspiredmess Swedish fish are totally my favorite treat! I missed the boat for jan happy mail but i'm definitely in for feb =)
â« Emiliana Torrini - Tuna Fish
somalush (Lush on SomaFM) Wed, 30 Dec 2009 23:14:32 -0000
♫ Emiliana Torrini - Tuna Fish
@90Mary02 lolol true fish would probably kill me im allergic
P_O_W_ (Chris Is Theman) Wed, 30 Dec 2009 23:14:25 -0000
@90Mary02 lolol true fish would probably kill me im allergic
Sons - Sales of fresh fish and shell fish to business and the general public. Price lists, on-line ordering and contact details.
Meta Description: [ crab meat by W.Harvey & Sons, suppliers of fresh crab meat, shellfish merchants, scallops and lobster from Cornwall ]
Andy Race Fish Merchants - Organic, peat-smoked salmon, kippers, mussels, oysters, scallops and other smoked and fresh fish.
Meta Description: [ Smoked Salmon, Organic Scottish smoked salmon, kippers, shellfish and fresh scottish seafood including mussels, haddock and prawns, available to order online from Andy Race fish merchants in Mallaig. Fish suppliers to some of the best restaurants in Scotland. ]
Bennetts Solway Brown Shrimp - Offer potted shrimps. Pricing and contact details.
Meta Description: [ Solway Potted Brown Shrimps, merchants of locally caught brown shrimp. ]
Coldstreame Seafood Ltd - Distributors of mail order smoked salmon gifts. Includes online ordering and recipes.
Coln Valley Smokery - Traditionally-prepared smoked scottish salmon, including wild salmon and delicatessen products, for delivery throughout the UK. Secure online ordering.
Meta Description: [ Supplies delicious scottish smoked salmon through an easy to use online shop. Our smoked scottish salmon is made in traditional brick kilns using state of the art slicing technology and in line with the strictest hygiene standards. ]
Cornish Fish - Sea fresh Cornish fish and shellfish. Site includes recipes and secure online ordering.
Dead Fresh Fish - Offer seafood from Brixham Fish Market. Contact details.
Meta Description: [ UK Fresh Fish shopping site for Fresh Fish and Shellfish, offers Fresh fish and seafood delivered direct to your door.Order all your Fresh fish and seafood through our secure on-line shopping site ]
Finns - Offer lobster, crab and fish, in ready made meals direct from Newquay Harbour, Cornwall. Contact details and catalogue.
Meta Description: [ New Harbour Restaurant and Cafe in Newquay, Nr Rock providing Cornish local produce including fish and lobster from Newquay's harbour and local meats. ]
Fish Direct - Mail order suppliers of sea fresh fish and shellfish delivered overnight. Live lobsters, crabs, mussels and oysters and other seafoods supplied.
Meta Description: [ Fresh Fish Shopping site for fresh fish and shellfish, including live and cooked lobsters, crabs, oysters and mussels. Offers overnight delivery to the mainland UK. ]
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High Seas Seafoods Direct - Offer a comprehensive range of creative seafood. Order and contact details.
Imperial Caviar (UK) - Retailers of caviar including Beluga, Imperial, Oscietra and Sevruga Iranian varieties from the Caspian Sea. E-mail orders.
Meta Description: [ Importers, wholesalers and retailers to the UK of the finest Iranian and Russian caviar - selection of Beluga, Imperial, Oscietre and Sevruga Iranian caviar from the Caspian Sea. ]
Island Seafare - Seafood processors and exporters. Products include scallops, monkfish, salmon, cod, lemon sole. Online orders (not secure). Based on the Isle of Man.
Jackson Ltd - Newton Abbott fishmonger offering fresh and smoked fish and sea food. Profile, information about fish, tips and recipes, price list and ordering instructions.
Meta Description: [ jackson's fish is a traditional fishmongers which retails, wholesales & smokes fish, shellfish & seafood. ]
Kelly Galway Oysters - Native Irish oysters. Profile, information about oysters, price list and shopping cart.
Meta Description: [ Native Irish oysters, ostrea edulis, you can eat straight from the sea, this is what the Kelly family have specialised in selling for 50 years from their beds in inner Galway Bay, and it has often been said that they have the best flavoured oysters in the world. Now available on-line for you to e... ]
M.M. Richardson Produce - Smoked salmon, haddock, mackeral, cod and trout delivered to your door. Order by phone or email only.
Meta Description: [ Dungeness fresh fish, for sale,frozen fish,shellfish,smoked,whole and filletted fish,recipes,Over night delivery on the UK mainland. ]
Martins Sea Fresh Online Shopping - Martins Seafresh shopping site, specialising in overnight delivery in the mainland UK, of Sea Fresh Fish, live or cooked Lobsters and Crabs. Secure online ordering.
Meta Description: [ Fresh Fish Shopping site for fresh fish and shellfish, including live and cooked lobsters, crabs, oysters and mussels. Offers overnight delivery to the mainland UK. ]
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Onlineseafood.co.uk - On-line fish market selling fresh and frozen seafood.
Orkney Smokehouse - Supplies smoked salmon produce by mail order. Profile and price list.
Meta Description: [ The Orkney Smokehouse is a business based in Orkney, United Kingdom, supplying quality smoked salmon produce by mail order. ]
Ramus Seafood Emporium - Seafood retailer selling fresh lobster and seafood platters. Site includes selection of fish recipes.
Meta Description: [ UK (Harrogate) based online mail order fresh seafood supplier. Seafood available includes lobster, Scottish salmon, trout, haddock and sole. ]
Shetland Smokehouse - Scottish smoked salmon and seafood.
Meta Description: [ Gourmet seafood from the Shetland Islands, Scotland's northern isles. Smoked salmon, marinated salmon and other delights direct to your door. We can ship gifts anywhere in the UK. ]
The Fish Society - Internet fishmonger selling large range of seafood, from cod fillets to king prawns in garlic sauce. All items are frozen and delivered packed in dry ice.
Meta Description: [ Frozen fish delivery from fishmongers, the fish society. We will deliver to your door - Dover sole, Lobsters, Turbot, Kippers, king prawn, langoustine, smoked fish, salmon, cod, haddock and more. ]
The Oyster Company - Fresh Colchester oysters delivered to home or office anywhere in mainland UK. No online ordering.
Thornham Oysters - From North Norfolk. Describes the product with tips, serving suggestions, price list and ordering instructions.
Meta Description: [ Thornham Oysters offer one of nature's natural sources of goodness with the taste of the North Norfolk coast delivered to your door. ]
West Coast Seafoods - Smoked Scottish salmon from Cumbria. Profile, description of smoking process and catalogue with shopping cart. Also includes wholesale price list.
Meta Description: [ West Coast Seafoods was established in 1997 with a vision to provide high quality smoked scottish salmon products, based initially on the world's finest resources of salmon, with the utmost attention to product quality. ]
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