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The flounder is a species of flatfish that is found in the coastal waters of the northern Atlantic and Pacific Oceans. Flounder are found hiding on the ocean floor at depths from shallow coral reefs to the deepest trench on Earth.

There are five different species of flounder found in the oceans, and only one of these flounder species (the Japanese flounder) is found in the Northern Pacific Ocean. The summer flounder, the winter flounder and the southern flounder are all found in the western Atlantic Ocean, while the European flounder is found in the colder waters around Northern Europe.

All five flounder species are very similar in appearance but can vary quite dramatically in size. Flounder can vary from 5 to 25 inches in size depending on the species, but all flounder species have a rounded, flattened body shape with a medium-sized flat tail fin.

The colours and markings of the flounder are dependant on the flounder species, although all five flounder species have adapted to life in the sand on the sea floor and they are often coloured to be camouflaged into their silty surroundings.

Flounder are carnivorous and highly predatory animals. The flounder hides on the sand on the sea floor waiting for potential prey, which the flounder ambushes once it has been spotted. Flounder prey on a variety of bottom-dwelling marine species including small fish, shrimp and crabs.

Due to the secretive nature and good camouflage of the flounder, it rarely spotted by predators. Large fish, sharks, eels, humans, and marine mammals all prey on the flounder when it can be spotted.

Rather than laying her eggs onto an inanimate object or the leaf of a plant, female flounders release them into the water at the time time as the male flounders release their sperm (this form of fertilisation is known as spawning). Once the eggs have been fertilised, the flounder fry begin emerging from them in just a couple of weeks.

Flounder Comments (8)

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"this website is awesome gonna recommend it to my friends "


"my family just found a striped flounder at indian rocks beach florida. anyone ever see a striped flounder?we have no idea what kind it is"


"I am doing ocean work and I got f for flounder! I tried like every website but then I stopped here!"

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Flounder Facts

Five groups that classify all living things...
A group of animals within the animal kingdom...
A group of animals within a pylum...
A group of animals within a class...
A group of animals within an order...
A group of animals within a family...
Common Name:
Most widely used name for the species...
Scientific Name:
Comprised of the genus followed by the species...
The area where the animal first came from...
Atlantic and Pacific Oceans
What kind of foods the animal eats...
Size (L):
How long (L) or tall (H) the animal is...
12.5cm - 64cm (5in - 25in)
Water Type:
Either freshwater, brakish or salt...
Optimum pH Level:
The perfect acidity conditions for the animal...
6.5 - 8.0
Life Span:
How long the animal lives for...
3 - 10 years
Conservation Status:
The likelihood of the animal becoming extinct...
Least Concern
The colour of the animal's coat or markings...
Brown, Black, Yellow, White, Tan
Skin Type:
The protective layer of the animal...
Favourite Food:Small Fish
The specific area where the animal lives...
Tropical coastal waters
Average Clutch Size:
The average number of eggs laif at once...
Main Prey:
The food that the animal gains energy from...
Small fish, Shrimp, Crabs
Other animals that hunt and eat the animal...
Large Fish, Sharks, Eels
Distinctive Features:
Characteristics unique to the animal...
Flattened body often with coloured spots

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