Flounders are a group of flatfish species. They are demersal fish, found at the bottom of oceans around the world; some species will also enter estuaries.

Pseudopleuronectes americanus
Winter flounder, Pseudopleuronectes americanus
Flounder hawaii
Flowery flounder, Bothus mancus,
Bahía de la Chiva, at Hawaii


The name "flounder" is used for several only distantly related species, though all are in the suborder Pleuronectoidei (families Achiropsettidae, Bothidae, Pleuronectidae, Paralichthyidae, and Samaridae). Some of the better known species that are important in fisheries are:

Eye migration

In its life cycle, an adult flounder has two eyes on one side of its head, and at hatching one eye is on each side of its head. One eye migrates to the other side of the body through a metamorphosis as it grows from larval to juvenile stage. As an adult, a flounder changes its habits and camouflages itself by lying on the bottom of the ocean floor as protection against predators.[1] As a result, the eyes are then on the side which faces up. The side to which the eyes migrate is dependent on the species type.


Flounders ambush their prey, feeding at soft muddy areas of the sea bottom, near bridge piles, docks and coral reefs.

A flounder's diet consists mainly of fish spawn, crustaceans, polychaetes and small fish. Flounder typically grow to a length of 22–60 centimeters (8.7–23.6 in), and as large as 95 centimeters (37 in). Their width is about half their length. Male Platichthys are known to display a pioneering spirit, and have been found up to 80 miles off the coast of northern Sardinia, sometimes with heavy encrustations of various species of barnacle.

Fluke, a type of flounder, are being farm raised in open water by Mariculture Technologies in Greenport, New York.[2]


Flounder camo md
A flounder blending into its environment

World stocks of large predatory fish and large ground fish, including sole and flounder, were estimated in 2003 to be only about 10% of pre-industrial levels, largely due to overfishing. Most overfishing is due to the extensive activities of the fishing industry.[3][4][5][6] Current estimates suggest that approximately 30 million flounder (excluding sole) are alive in the world today. In the Gulf of Mexico, along the coast of Texas, research indicates the flounder population could be as low as 15 million due to heavy overfishing and industrial pollution.

According to Seafood Watch, Atlantic flounders and soles are currently on the list of seafood that sustainability-minded consumers should avoid.[7]


  1. ^ Fairchild, E.A. and Howell, W.H, E. A.; Howell, W. H. (2004). "Factors affecting the post-release survival of cultured juvenile Pseudopleuronectes americanus". Journal of Fish Biology. 65 (Supplementary A): 69–87. doi:10.1111/j.0022-1112.2004.00529.x.
  2. ^ Kreahling, Lorraine (17 November 1996). "Farming Fluke in Open Water". The New York Times. Retrieved 26 July 2017.
  3. ^ Clover, Charles (2008). The End of the Line: How Overfishing is Changing the World and what We Eat. University of California Press. ISBN 978-0-520-25505-0. OCLC 67383509.
  4. ^ Myers, R. A.; Worm, B. (2003). "Rapid worldwide depletion of predatory fish communities". Nature. 423 (6937): 280–283. doi:10.1038/nature01610. PMID 12748640.
  5. ^ Dalton, Rex (2006). "Save the big fish: Targeting of larger fish makes populations prone to collapse". BioEd Online. Retrieved 26 March 2017.
  6. ^ Hsieh, Chih-hao; Reiss, Christian S.; Hunter, John R.; Beddington, John R.; May, Robert M.; Sugihara, George (2006). "Fishing elevates variability in the abundance of exploited species". Nature. 443 (7113): 859. doi:10.1038/nature05232. PMID 17051218.
  7. ^ "Monterey Bay Aquarium: Seafood Watch Program – All Seafood List". Monterey Bay Aquarium. Archived from the original on 6 July 2010. Retrieved 17 April 2008.

External links


Lefteye flounders are a family, Bothidae, of flounders. They are called "lefteye flounders" because most species lie on the sea bottom on their right sides, with both eyes on their left sides. A helpful reminder when trying to recall the family name for this fish is that "Bothidae (Both o' dey) eyes are on the same side o' dey head." The family is also distinguished by the presence of spines on the snout and near the eyes.Lefteye flounders vary considerably in size between the more than 160 species, ranging from 4.5 cm (1.8 in) to 1.5 m (4.9 ft) in length. They include such economically important species as the Japanese halibut.


A flatfish is a member of the order Pleuronectiformes of ray-finned demersal fishes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on one side of the head, one or the other migrating through or around the head during development. Some species face their left sides upward, some face their right sides upward, and others face either side upward.

Many important food fish are in this order, including the flounders, soles, turbot, plaice, and halibut. Some flatfish can camouflage themselves on the ocean floor.

Flounder Brewing

Flounder Brewing Company is a nanobrewery in Hillsborough in Somerset County, New Jersey. Started by Jeremy Lees as a homebrewing hobby, it grew to encompass other members of the family including his brothers, Daniel and Michael, and his cousin William. The brewery opened to the public in October 2013, and was first sold to the public at the Fox and Hound Tavern in Lebanon, New Jersey. It was New Jersey's 12th Limited Brewery license and one of the first nano scale breweries in New Jersey, producing an estimated 50 barrels of beer per year. The brewery is open for tastings and fills on Thursday, Friday, Saturday and Sunday.

Flounder tramping

Flounder tramping is a traditional method of catching flounder or other flat fish by wading in shallow water and standing on them.

This method of fishing was used in the coastal waters and river estuaries of South West Scotland for centuries. Once trapped the fish were often secured by impaling them on a leister before being bagged. A leister is the local name for a trident or three pronged long handled spear. Although traditional, the use of leisters to aid capture is no longer permitted (presumably for safety reasons).


Gigging is the practice of hunting fish or small game with a gig or similar multi-pronged spear. Commonly harvested wildlife include freshwater suckers, saltwater flounder, and small game, such as frogs. A gig can refer to any long pole which has been tipped with a multi-pronged spear. The gig pole ranges in length from 8 to 14 feet for fish gigs and 5 to 8 feet for frog gigs. A gig typically has three or four barbed tines similar to a trident; however gigs can be made with any number of tines. In the past people would attach illuminated pine knots to the end of gigs at night to give them light.


Halibut is a common name principally applied to the two flatfish in the genus Hippoglossus from the family of right-eye flounders. Less commonly, and in some regions only, other species of flatfish are also referred to as being halibuts. The word is derived from haly (holy) and butte (flat fish), for its popularity on Catholic holy days. Halibut are demersal fish and are highly regarded as a food fish.

List of SpongeBob SquarePants characters

The characters in the American animated television series SpongeBob SquarePants were created by artist, animator, and former marine biologist Stephen Hillenburg. The series chronicles the adventures of the title character and his various friends in the fictional underwater city of Bikini Bottom. Most characters are anthropomorphic sea creatures based on real-life species. Many of the characters' designs originated in an unpublished educational comic book titled The Intertidal Zone, which Hillenburg created in 1989.

SpongeBob SquarePants features the voices of Tom Kenny, Bill Fagerbakke, Rodger Bumpass, Clancy Brown, Mr. Lawrence, Jill Talley, Carolyn Lawrence, Mary Jo Catlett and Lori Alan. Most one-off and background characters are voiced by Dee Bradley Baker, Sirena Irwin, Bob Joles, Mark Fite and Thomas F. Wilson. In addition to the series' regular cast, various celebrities from a wide range of professions have voiced guest characters and recurring roles.

The show's characters have received positive critical reception and attention from celebrities. They have made frequent appearances in media outside of the television show, including a theatrical film series and many video games. The characters have also been referenced and parodied throughout popular culture. The title character SpongeBob became a merchandising icon during the height of the show's second season and has seen continued commercial popularity.

List of The Little Mermaid characters

This article lists information of animated and was made by Hans Christian Andersen original characters from Disney's The Little Mermaid franchise, covering the 1989 film, its prequel TV series, its direct-to-video sequel and prequel films, and the stage musical adaptation.


Large-tooth flounders or sand flounders are a family, Paralichthyidae, of flounders. The family contains 14 genera with a total of about 110 species. They lie on the sea bed on their right side; both eyes are always on the left side of the head, while the Pleuronectidae usually (but not always) have their eyes on the right side of the head.

They are found in temperate and tropical waters of the Atlantic, Indian and Pacific Oceans.

Several species are important commercial and game fishes, notably the California halibut, Paralichthys californicus and the Pacific sanddab, Citharichthys sordidus.


Plaice is a common name for a group of flatfish that comprises four species: the European, American, Alaskan and scale-eye plaice.

Commercially, the most important plaice is the European. The principal commercial flatfish in Europe, it is also widely fished recreationally, has potential as an aquaculture species, and is kept as an aquarium fish. Also commercially important is the American plaice.

The term plaice (plural plaice) comes from the 14th-century Anglo-French plais. This in turn comes from the late Latin platessa, meaning flatfish, which originated from the Ancient Greek platys, meaning broad.


Pleuronectidae, also known as righteye flounders, are a family of flounders. They are called "righteye flounders" because most species lie on the sea bottom on their left sides, with both eyes on their right sides. The Paralichthyidae are the opposite, with their eyes on the left side. A small number of species in Pleuronectidae can also have their eyes on the left side, notably the members of the genus Platichthys.Their dorsal and anal fins are long and continuous, with the dorsal fin extending forward onto the head. Females lay eggs that float in mid-water until the larvae develop, and they sink to the bottom.They are found on the bottoms of oceans around the world, with some species, such as the Atlantic halibut, Hippoglossus hippoglossus, being found down to 2,000 m (6,600 ft). The smaller species eat sea-floor invertebrates such as polychaetes and crustaceans, but the larger righteye flounders, such as H. hippoglossus, which grows up to 4.7 m (15 ft) in length, feed on other fishes and cephalopods, as well.

They include many important commercially fished species, including not only the various fish called flounders, but also the European plaice, the halibuts, the lemon sole, the common dab, the Pacific Dover sole, and the flukes.

The name of the family is derived from the Greek πλευρά (pleura), meaning "rib" or "side", and νηκτόν (nekton), meaning "swimming".

Sole (fish)

Sole is a fish belonging to several families. Generally speaking, they are members of the family Soleidae, but, outside Europe, the name sole is also applied to various other similar flatfish, especially other members of the sole suborder Soleoidei as well as members of the flounder family. In European cookery, there are several species which may be considered true soles, but the common or Dover sole Solea solea, often simply called the sole, is the most esteemed and most widely available.


The true soles are a family, Soleidae, of flatfishes. It includes saltwater and brackish water species in the East Atlantic, Indian Ocean, and West and Central Pacific Ocean. Freshwater species are found in Africa, southern Asia, New Guinea, and Australia.

In the past, soles of the Americas (both fresh and salt water) were included in this family, but they have been separated to their own family, the American soles (Achiridae). The only true sole remaining in that region is Aseraggodes herrei of the Galápagos and Cocos Island.The true soles are bottom-dwelling fishes feeding on small crustaceans and other invertebrates. The family contains 30 genera and a total of about 180 species.

Soles begin life as bilaterally symmetric larvae, with an eye on each side of the head, but during development, the left eye moves around onto the right side of the head. Adult soles lie on their left (blind) sides on the sea floor, often covered in mud, which in combination with their dark colours, makes them hard to spot.

A flatfish resembling a small halibut or sole was observed by the Bathyscaphe Trieste at the bottom of the Mariana Trench at a depth around 11 km (36,000 ft). This observation has been questioned by fish experts, and recent authorities do not recognize it as valid.Many soles are important food species: the common sole, Solea solea, is popular in northern Europe and the Mediterranean.

Summer flounder

The summer flounder (Paralichthys dentatus) is a marine flatfish that is found in the Atlantic Ocean off the East Coast of the United States and Canada. It is especially abundant in waters from North Carolina to Massachusetts.


Tonguefishes are flatfishes in the family Cynoglossidae. They are distinguished by the presence of a long hook on the snout overhanging the mouth, and the absence of pectoral fins. Their eyes are both on the left side of their bodies, which also lack a pelvic fin. This family has three genera with a total of more than 140 species. The largest reaches a length of 66 cm (26 in), though most species only reach half that size or less.

They are found in tropical and subtropical oceans, mainly in shallow waters and estuaries, though a few species found in deep sea floors, and a few in rivers.

Symphurus thermophilus lives congregating around "ponds" of sulphur at hydrothermal vents on the seafloor. No other flatfish is known from hydrothermal vents. Scientists are unsure of the mechanism that allows the fish to survive and even thrive in such a hostile environment.


The turbot (Scophthalmus maximus) is a species of flatfish in the family Scophthalmidae. It is a demersal fish native to marine or brackish waters of the North Atlantic, Baltic Sea and the Mediterranean Sea.

Tuvaluan mythology

Tuvaluan mythology tells stories of the creation of the islands of Tuvalu and of the founding ancestors of each island. While on some of the islands there are stories of spirits creating the islands, a creation story that is found on many of the islands is that te Pusi mo te Ali (the Eel and the Flounder) created the islands of Tuvalu; te Ali (the Flounder) is believed to be the origin of the flat atolls of Tuvalu and the te Pusi (the Eel) is the model for the coconut palms that are important in the lives of Tuvaluans. The strength of this belief has the consequence that Moray eel is tapu and is not eaten.

USS Flounder

USS Flounder (SS-251), a Gato class submarine, was the only ship of the United States Navy to be named for the flounder.

Her keel was laid down by the Electric Boat Company in Groton, Connecticut on 5 December 1942. She was launched on 22 August 1943 (sponsored by Mrs. Astrid H. McClellan), and commissioned on 29 November 1943 with Commander C. A. Johnson in command.

Xian JH-7

The Xian JH-7 (Jianjiji Hongzhaji – fighter-bomber; NATO reporting name Flounder), also known as the FBC-1 (Fighter/Bomber China-1) Flying Leopard, is a tandem two-seat, twin-engine fighter-bomber in service with the People's Liberation Army Naval Air Force (PLANAF), and the People's Liberation Army Air Force (PLAAF). The main contractors are Xi'an Aircraft Industrial Corporation (XAC) and the 603rd Aircraft Design Institute (later named the First Aircraft Institute of AVIC-I).

The first JH-7s were delivered to the PLANAF in the mid-1990s for evaluation, with the improved JH-7A entering service in 2004.

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