Florida mangroves
Encyclopedia
The Florida mangroves comprise an ecosystem
Ecosystem
An ecosystem is a biological environment consisting of all the organisms living in a particular area, as well as all the nonliving , physical components of the environment with which the organisms interact, such as air, soil, water and sunlight....

 of the coasts of the Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 peninsula
Peninsula
A peninsula is a piece of land that is bordered by water on three sides but connected to mainland. In many Germanic and Celtic languages and also in Baltic, Slavic and Hungarian, peninsulas are called "half-islands"....

, including the Florida Keys
Florida Keys
The Florida Keys are a coral archipelago in southeast United States. They begin at the southeastern tip of the Florida peninsula, about south of Miami, and extend in a gentle arc south-southwest and then westward to Key West, the westernmost of the inhabited islands, and on to the uninhabited Dry...

. The Florida mangrove community includes three mangrove
Mangrove
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes N and S...

 species, Red Mangrove (Rhizophora mangle
Rhizophora mangle
Rhizophora mangle, known as the red mangrove, is distributed in estuarine ecosystems throughout the tropics. Its viviparous "seeds," in actuality called propagules, become fully mature plants before dropping off the parent tree...

), Black Mangrove (Avicennia germinans
Avicennia germinans
Avicennia germinans, commonly known as the black mangrove, is a species of flowering plant in the acanthus family, Acanthaceae.A. germinans grows in tropical and subtropical regions of the Americas, on both Atlantic and Pacific coasts, and on the Atlantic coast of tropical Africa, where it thrives...

) and White Mangrove (Laguncularia racemosa
Laguncularia racemosa
Laguncularia racemosa is a species of flowering plant in the leadwood tree family, Combretaceae...

), and one species that is variously classified as a mangrove or a mangrove associate, Buttonwood (Conocarpus erectus). These plants have differing adaptions to conditions along coasts, and are generally found in partially overlapping bands or zones. The Red Mangrove grows closest to open water. It has multiple prop roots, which may help to stabilize the soil around its roots. Next comes the Black Mangrove. It does not have prop roots, but does have pneumatophores, which grow up from the roots to above the water level. The White Mangrove grows closest to shore. It may have prop roots and/or pneumatophores, depending on conditions where it is growing. The Buttonwood grows in shallow, brackish water
Brackish water
Brackish water is water that has more salinity than fresh water, but not as much as seawater. It may result from mixing of seawater with fresh water, as in estuaries, or it may occur in brackish fossil aquifers. The word comes from the Middle Dutch root "brak," meaning "salty"...

 or on dry land.

Mangroves are tropical
Tropics
The tropics is a region of the Earth surrounding the Equator. It is limited in latitude by the Tropic of Cancer in the northern hemisphere at approximately  N and the Tropic of Capricorn in the southern hemisphere at  S; these latitudes correspond to the axial tilt of the Earth...

 plants, killed by freezing temperatures. Mangroves can survive along most of the length of the Florida peninsula because the winter climate is moderated by the warm waters of the Gulf of Mexico
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

 on the west coast and the Gulf Stream
Gulf Stream
The Gulf Stream, together with its northern extension towards Europe, the North Atlantic Drift, is a powerful, warm, and swift Atlantic ocean current that originates at the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean...

 on the east coast. The Florida Mangrove community is found as far north as Cedar Key
Cedar Key, Florida
Cedar Key is a city in Levy County, Florida, United States. The population was 790 at the 2000 census. According to the U.S Census estimates of 2005, the city had a population of 958. The Cedar Keys are a cluster of islands close to the mainland. Most of the developed area of the city has been on...

 on the Gulf coast
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

 of Florida, and as far north as the Ponce de Leon Inlet
Ponce Inlet, Florida
Ponce Inlet is a town in Volusia County, Florida, United States. The population was 2,513 at the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau is 3,178....

 on the Atlantic
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 coast of Florida. Black Mangroves can regrow from roots after being killed back by a freeze, and are found by themselves a little further north, to Jacksonville
Jacksonville, Florida
Jacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...

 on the east coast and along the Florida Panhandle
Florida Panhandle
The Florida Panhandle, an informal, unofficial term for the northwestern part of Florida, is a strip of land roughly 200 miles long and 50 to 100 miles wide , lying between Alabama on the north and the west, Georgia also on the north, and the Gulf of Mexico to the south. Its eastern boundary is...

 on the Gulf coast . As Florida is sub-tropical in climate, it is not ideal for mangroves, and the trees tend to be shorter and the leaves smaller in Florida than in tropical regions.

Locations

As of 1981, mangrove communities covered an estimated 430,000 to 540,000 acre
Acre
The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land.The acre is related...

s (1,700 to 2,200 km²) in Florida. Ninety percent of the Florida mangroves are in southern Florida, in Collier
Collier County, Florida
Collier County is a county located in the U.S. state of Florida. As of 2000, the population was 251,377. The U.S. Census Bureau 2007 estimate for the county is 315,839...

, Lee
Lee County, Florida
Lee County is a county located in the U.S. state of Florida. Located in southwest Florida, the principal cities in the county are Fort Myers and Cape Coral...

, Miami-Dade
Miami-Dade County, Florida
Miami-Dade County is a county located in the southeastern part of the state of Florida. As of 2010 U.S. Census, the county had a population of 2,496,435, making it the most populous county in Florida and the eighth-most populous county in the United States...

 and Monroe
Monroe County, Florida
Monroe County is a county located in the state of Florida. As of 2000, the population was 79,589. The U.S. Census Bureau 2006 estimate for the county was 74,737....

 Counties. Approximately 280,000 acres (1,100 km²) of mangrove forests are in the hands of the Federal
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, State
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 and local governments, and of private, non-profit organizations. Most of those acres are in Everglades National Park
Everglades National Park
Everglades National Park is a national park in the U.S. state of Florida that protects the southern 25 percent of the original Everglades. It is the largest subtropical wilderness in the United States, and is visited on average by one million people each year. It is the third-largest...

. Mangroves cover a wide band all along the southern end of the Florida peninsula facing on Florida Bay
Florida Bay
Florida Bay is the bay located between the southern end of the Florida mainland and the Florida Keys. Its area is variously stated to be , or , or . Nearly all of Florida Bay is included in Everglades National Park. The southern edge, along the Florida Keys is in the Florida Keys National Marine...

, from Key Largo
Key Largo
Key Largo is an island in the upper Florida Keys archipelago and, at long, the largest of the Keys. It is also the northernmost of the Florida Keys in Monroe County, and the northernmost of the Keys connected by U.S. Highway 1...

 across to close to Flamingo
Flamingo, Florida
Flamingo is an unincorporated community and ghost town in Monroe County, Florida, United States. It began as a small coastal settlement on the eastern end of Cape Sable on the southern tip of the Florida peninsula, facing Florida Bay...

, then inland behind the beaches and marl prairies of Cape Sable
Cape Sable
Cape Sable, Florida is the southernmost point of the US mainland and mainland Florida. It is located in southwestern Florida, in Monroe County, and is part of the Everglades National Park. The cape is a peninsula issuing from the southeastern part of the Florida mainland, running west and curving...

 and all around Whitewater Bay
Whitewater Bay
Whitewater Bay is an inlet of the Gulf of Mexico in southwestern Florida in the United States. The bay is located entirely within Monroe County north of Cape Sable in the Everglades National Park. Whitewater Bay leads into Oyster Bay to the west, then Ponce de Leon Bay in the Gulf of...

. From Whitewater Bay a broad band of mangroves extends up the Gulf coast to Marco Island
Marco Island, Florida
Marco Island is a city in Collier County, Florida, United States, located on an island by the same name in the Gulf of Mexico off the coast of Southwest Florida. It is a principal city of the Naples–Marco Island Metropolitan Statistical Area...

, including the Ten Thousand Islands.

Mangroves also extend throughout the Florida Keys, although coverage has been reduced due to development. Florida Bay is dotted with small islands, which are often no more than mud flats or shoals more or less covered by mangroves. Biscayne Bay
Biscayne Bay
Biscayne Bay is a lagoon that is approximately 35 miles long and up to 8 miles wide located on the Atlantic coast of South Florida, United States. It is usually divided for purposes of discussion and analysis into three parts: North Bay, Central Bay, and South Bay. Its area is...

 also has extensive mangroves, but the northern part of the Bay has been largely cleared of mangroves to make way for urban development. Mangrove coverage is limited elsewhere, with the largest areas in the Indian River Lagoon
Indian River Lagoon
The Indian River Lagoon is a grouping of three lagoons: Mosquito Lagoon, Banana River, and the Indian River, on the Atlantic Coast of Florida. It was originally named Rio de Ais after the Ais Indian tribe, who lived along the east coast of Florida....

 on the east coast, and the Caloosahatchee River
Caloosahatchee River
The Caloosahatchee River is a river on the southwest Gulf Coast of Florida in the United States, approximately long. It drains rural areas on the northern edge of the Everglades northwest of Miami...

, Pine Island Sound
Pine Island Sound
Pine Island Sound is located in Lee County, Florida, lying between Pine Island and the barrier islands of Sanibel Island, Captiva Island, North Captiva Island and Cayo Costa, which separate the Sound from the Gulf of Mexico. The Sound connects to Gasparilla Sound and Charlotte Harbor to the north,...

 and Charlotte Harbor
Charlotte Harbor (estuary)
Charlotte Harbor Estuary is a natural estuary spanning the west coast of Florida from Venice to Bonita Springs on the Gulf of Mexico and is one of the most productive wetlands in Florida...

 estuaries and Tampa Bay
Tampa Bay
Tampa Bay is a large natural harbor and estuary along the Gulf of Mexico on the west central coast of Florida, comprising Hillsborough Bay, Old Tampa Bay, Middle Tampa Bay, and Lower Tampa Bay."Tampa Bay" is not the name of any municipality...

 on the west coast.

Human activity has impacted the mangrove ecosystem in Florida. While the coverage of mangroves in Florida at the end of the 20th century is estimated to have decreased only 5% from a century earlier, some localities have seen severe reductions. The Lake Worth Lagoon
Lake Worth Lagoon
The Lake Worth Lagoon is a lagoon located in Palm Beach County, Florida. It runs parallel to the coast, and is separated from the Atlantic Ocean by barrier beaches, including Palm Beach Island. The lagoon is connected to the Atlantic Ocean by two permanent, man-made inlets.-Geography:Lake Worth...

 lost 87% of its mangroves in the second half of the 20th century, leaving a remnant of just 276 acres (1.12 km²). Tampa Bay, home to the busy Port of Tampa
Port of Tampa
The Port of Tampa is located on the western coast or Suncoast of Florida, approximately 25 miles from open waters of the Gulf of Mexico. The boundaries of the Port district includes parts of Tampa Bay, Hillsborough Bay, McKay Bay, Old Tampa Bay and the Hillsborough River.The port of Tampa is the...

, lost over 44% of its wetlands, including mangroves and salt marshes, during the 20th century. Three-quarters of the wetlands along the Indian River Lagoon
Indian River Lagoon
The Indian River Lagoon is a grouping of three lagoons: Mosquito Lagoon, Banana River, and the Indian River, on the Atlantic Coast of Florida. It was originally named Rio de Ais after the Ais Indian tribe, who lived along the east coast of Florida....

, including mangroves, were impounded for mosquito control during the 20th century. As of 2001, natural water flow was being restored to some of the wetlands.

Habitat and shelter

The Florida mangrove system is an important habitat for many species. It provides nursery grounds for young fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

, crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...

s and mollusks
Mollusca
The Mollusca , common name molluscs or mollusksSpelled mollusks in the USA, see reasons given in Rosenberg's ; for the spelling mollusc see the reasons given by , is a large phylum of invertebrate animals. There are around 85,000 recognized extant species of molluscs. Mollusca is the largest...

. Many fish feed in the mangrove forests, including snook
Common snook
The common snook is a species of marine fish in the family Centropomidae of the order Perciformes. This species is native to the coastal waters of the western Atlantic Ocean and Caribbean Sea, from southern Florida and Texas...

 (Centropomus undecimalis), Gray or Mangrove snapper
Mangrove snapper
The mangrove snapper, Lutjanus griseus, is a snapper in the family Lutjanidae. It is also known as the gray snapper, mango snapper, or cabellerote....

 (Lutjanus griseus), Schoolmaster snapper
Schoolmaster snapper
The schoolmaster snapper, Lutjanus apodus, is found from Massachusetts to Brazil, but is common in southern Florida and the Caribbean. Up to 24 inches in length. It has a robust slightly compressed body, with a pointed head. Its color varies from silvery to bronze. Fins and tails are yellow...

 (Lutjanus apodus), tarpon
Atlantic tarpon
The Atlantic tarpon, Megalops atlanticus, inhabits coastal waters, estuaries, lagoons, and rivers. Tarpons feed almost exclusively on schooling fish and occasionally crabs. Tarpons are capable of filling their swim bladder with air, like a primitive lung. This gives Tarpons a predatory advantage...

, jack
Carangidae
Carangidae is a family of fish which includes the jacks, pompanos, jack mackerels, and scads.They are marine fish found in the Atlantic, Indian and Pacific Oceans...

, sheepshead
Sheepshead (fish)
The sheepshead, Archosargus probatocephalus, is a marine fish that grows to 30 in , but commonly reaches 10 to 20 in. It is deep and compressed in body shape, with 5 to 6 dark bars on the side of the body over a gray background. It has sharp dorsal spines. Its diet consists of oysters, clams, and...

, red drum
Red Drum
The Red Drum , also known as Channel Bass, Redfish, Spottail Bass or simply Reds, is a game fish that is found in the Atlantic Ocean from Massachusetts to Florida and in the Gulf of Mexico from Florida to Northern Mexico. It is the only species in the genus Sciaenops...

, Hardhead Silverside
Silverside (fish)
The Old World silversides are a family, Atherinidae, of fish in the order Atheriniformes. They occur worldwide in tropical and temperate waters...

 (Atherinomorus stipes), juvenile Blue Angelfish
Marine angelfish
Marine angelfish are perciform fish of the family Pomacanthidae. They are found on shallow reefs in the tropical Atlantic, Indian, and mostly western Pacific oceans. The family contains seven genera and approximately 86 species...

 (Holocanthus bermudensis), juvenile Porkfish (Anisotremus
Haemulidae
The grunts are a family, Haemulidae, of fishes in the order Perciformes. They are numerous and widespread, with about 150 species in 19 genera, found in tropical fresh, brackish and salt waters around the world...

 virginicus
), Lined Seahorse
Hippocampus erectus
Hippocampus erectus is a species of fish that belongs to the Syngnathidae family. Its common names may include: Lined seahorse, Northern seahorse, and Spotted seahorse.-Description:...

 (Hippocampus erectus), Great Barracuda
Barracuda
The barracuda is a ray-finned fish known for its large size and fearsome appearance. Its body is long, fairly compressed, and covered with small, smooth scales. Some species could reach up to 1.8m in length and 30 cm in width...

 (Sphryaena barracuda), Scrawled Cowfish
Boxfish
Ostraciidae is a family of squared, bony fish belonging to the order Tetraodontiformes, closely related to the pufferfishes and filefishes. Fish in the family are known variously as boxfishes, cofferfishes, cowfishes and trunkfishes...

 (Lactophrys quadricornis) and Permit
Permit (fish)
The permit, Trachinotus falcatus, is a game fish of the western Atlantic ocean belonging to the Carangidae family. Adults feed on crabs, shrimp, and smaller fish...

 (Trachinotus falcatus), as well as shrimp
Shrimp
Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important...

 and clams
CLaMS
CLaMS is a modular chemistry transport model system developed at Forschungszentrum Jülich, Germany. CLaMS was first described by McKenna et al. and was expanded into three dimensions by Konopka et al....

. An estimated 75% of the game fish
Game fish
Game fish are fish pursued for sport by recreational anglers. They can be freshwater or marine fish. Game fish can be eaten after being caught, though increasingly anglers practise catch and release to improve fish populations. Some game fish are also targeted commercially, particularly...

 and 90% of the commercial fish
Fishing industry
The fishing industry includes any industry or activity concerned with taking, culturing, processing, preserving, storing, transporting, marketing or selling fish or fish products....

 species in south Florida depend on the mangrove system.

The branches of mangroves serve as roosts and rookeries
Rookery
A rookery is a colony of breeding animals, generally birds. A rook is a Northern European and Central Asian member of the crow family, which nest in prominent colonies at the tops of trees. The term is applied to the nesting place of birds, such as crows and rooks, the source of the term...

 for coastal and wading birds, such as the brown pelican
Brown Pelican
The Brown Pelican is the smallest of the eight species of pelican, although it is a large bird in nearly every other regard. It is in length, weighs from and has a wingspan from .-Range and habits:...

 (Oelicanus occidentalis), roseate spoonbill
Roseate Spoonbill
The Roseate Spoonbill, Platalea ajaja, is a gregarious wading bird of the ibis and spoonbill family, Threskiornithidae...

 (Ajajia ajaia), Frigatebird
Frigatebird
The frigatebirds are a family, Fregatidae, of seabirds. There are five species in the single genus Fregata. They are also sometimes called Man of War birds or Pirate birds. Since they are related to the pelicans, the term "frigate pelican" is also a name applied to them...

 (Fregata magnificans), Double-crested cormorant
Double-crested Cormorant
The Double-crested Cormorant is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico...

 (Phalacrocorax carbo), Brown Noddy
Noddy (tern)
Noddies are members of the tern family Sternidae in the genera Anous, Procelsterna, and Gygis. They are a tropical group, characterised by the notch-wedge shaped tail; coastal and pelagic oceanic...

 (Anous stolidus), Great White Heron and Wurdemann's Heron, color phases of the Great Blue Heron
Great Blue Heron
The Great Blue Heron is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North and Central America as well as the West Indies and the Galápagos Islands. It is a rare vagrant to Europe, with records from Spain, the Azores and England...

 (Adrea herodias), Osprey
Osprey
The Osprey , sometimes known as the sea hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than in length and across the wings...

 (Pandion haliaetus), Snowy Egret
Snowy Egret
The Snowy Egret is a small white heron. It is the American counterpart to the very similar Old World Little Egret, which has established a foothold in the Bahamas....

 (Egretta thula), Green Heron
Green Heron
The Green Heron is a small heron of North and Central America. It was long considered conspecific with its sister species the Striated Heron , and together they were called "Green-backed Heron"...

 (Butorides striatus), Reddish Egret
Reddish Egret
The Reddish Egret is a small heron. It is a resident breeder in Central America, The Bahamas, the Caribbean, the Gulf Coast of the United States, and Mexico. There is post-breeding dispersal to well north of the nesting range...

 (Dichromanassa rufescens) and Greater Yellowlegs
Greater Yellowlegs
The Greater Yellowlegs, Tringa melanoleuca, is a large North American shorebird, similar in appearance to the smaller Lesser Yellowlegs. Its closest relative, however, is the Greenshank, which together with the Spotted Redshank form a close-knit group...

 (Tringa melanoleuca). Other animals that shelter in the mangroves are the American Coot
American Coot
The American Coot is a bird of the family Rallidae, inhabiting wetlands and open water bodies. Measuring in length and across the wings, adults have a short thick white bill and white frontal shield, which usually has a reddish-brown spot near the top of the bill between the eyes...

 (Fulica americana), American Crocodile
American Crocodile
The American crocodile is a species of crocodilian found in the Neotropics. It is the most widespread of the four extant species of crocodiles from the Americas. Populations occur from the Atlantic and Pacific coasts of southern Mexico to South America as far as Peru and Venezuela. It also lives...

, Bald Eagle
Bald Eagle
The Bald Eagle is a bird of prey found in North America. It is the national bird and symbol of the United States of America. This sea eagle has two known sub-species and forms a species pair with the White-tailed Eagle...

, Peregrine Falcon
Peregrine Falcon
The Peregrine Falcon , also known as the Peregrine, and historically as the Duck Hawk in North America, is a widespread bird of prey in the family Falconidae. A large, crow-sized falcon, it has a blue-gray back, barred white underparts, and a black head and "moustache"...

, Eastern Diamondback Rattlesnake (Crotalus adamanteus), Mangrove Snake (Nerodia clarkii
Nerodia clarkii
The Salt Marsh Snake is a species of semiaquatic, nonvenomous, colubrid snake found in the southeastern United States, in the brackish salt marshes along the Gulf of Mexico from Florida to Texas, with a population in northern Cuba....

 compressicauda
) and the Atlantic Saltmarsh Snake (Nerodia clarkii
Nerodia clarkii
The Salt Marsh Snake is a species of semiaquatic, nonvenomous, colubrid snake found in the southeastern United States, in the brackish salt marshes along the Gulf of Mexico from Florida to Texas, with a population in northern Cuba....

 taeniata
).

Above the water mangroves also shelter and support snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

s, crabs, spider
Spider
Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...

s, bromeliads of the genus Tillandsia
Tillandsia
Tillandsia is a genus of around 540 species in the Bromeliad family , found in the forests, mountains, and deserts, of Central and South America, and Mexico and the southern United States in North America....

, including Spanish moss
Spanish Moss
Spanish moss is a flowering plant that grows upon larger trees, commonly the Southern Live Oak or Bald Cypress in the southeastern United States....

, and Reindeer lichen. Below the water's surface, often encrusted on the mangrove roots, are sponge
Sea sponge
Sponges are animals of the phylum Porifera . Their bodies consist of jelly-like mesohyl sandwiched between two thin layers of cells. While all animals have unspecialized cells that can transform into specialized cells, sponges are unique in having some specialized cells, but can also have...

s, anemone
Sea anemone
Sea anemones are a group of water-dwelling, predatory animals of the order Actiniaria; they are named after the anemone, a terrestrial flower. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Zoantharia. Anthozoa often have large polyps that allow for digestion of larger...

s, coral
Coral
Corals are marine animals in class Anthozoa of phylum Cnidaria typically living in compact colonies of many identical individual "polyps". The group includes the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.A coral "head" is a colony of...

s, oyster
Oyster
The word oyster is used as a common name for a number of distinct groups of bivalve molluscs which live in marine or brackish habitats. The valves are highly calcified....

s, tunicate
Tunicate
Tunicates, also known as urochordates, are members of the subphylum Tunicata, previously known as Urochordata, a group of underwater saclike filter feeders with incurrent and excurrent siphons that is classified within the phylum Chordata. While most tunicates live on the ocean floor, others such...

s, mussel
Mussel
The common name mussel is used for members of several families of clams or bivalvia mollusca, from saltwater and freshwater habitats. These groups have in common a shell whose outline is elongated and asymmetrical compared with other edible clams, which are often more or less rounded or oval.The...

s, starfish, crabs, Florida Spiny Lobster (Panulirus argus
Panulirus argus
Panulirus argus, the Caribbean spiny lobster, is a species of spiny lobster that lives on reefs and in mangrove swamps in the western Atlantic Ocean.-Anatomy:...

) and seagrass
Seagrass
Seagrasses are flowering plants from one of four plant families , all in the order Alismatales , which grow in marine, fully saline environments.-Ecology:...

es.
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