Tod Sirod Reef

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Tod Sirod Reef
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Tod Sirod Reef (Caribbean)
Location Gulf of Mexico
Coordinates 26°7.771′N82°2.290′W / 26.129517°N 82.038167°W / 26.129517; -82.038167 Coordinates: 26°7.771′N82°2.290′W / 26.129517°N 82.038167°W / 26.129517; -82.038167
CountryFlag of the United States.svg  United States
Type artificial reef

Tod Sirod Reef, formerly known as Collier 1 Reef is an artificial reef in the Gulf of Mexico, off the coast of Collier County, Florida. It is part of a network of artificial reefs off the coast of the county.

Artificial reef A man-made underwater structure, typically built to promote marine life, control erosion, block ship passage, block the use of [[trawling]] nets, or improve surfing

An artificial reef is a man-made underwater structure, typically built to promote marine life in areas with a generally featureless bottom, to control erosion, block ship passage, block the use of trawling nets, or improve surfing.

Gulf of Mexico An Atlantic Ocean basin extending into southern North America

The Gulf of Mexico is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. 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. The U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida border the Gulf on the north, which are often referred to as the "Third Coast", in comparison with the U.S. Atlantic and Pacific coasts.

Collier County, Florida County in Florida, United States

Collier County is a county in the U.S. state of Florida. As of the 2010 census, the population was 321,520. Its county seat is East Naples, where the county offices were moved from Everglades City in 1962.



Construction of the reef was done by a public-private partnership in 2015. [1] In total 36 artificial reefs off the Collier County coastline has been created in six new reef areas. [2]

New reef areas
Reef NameLocationGPS
Wasmer Reef10 nautical miles from Gordon Pass26°01.973'N 81°58.557'W
Foote Family Reef17 nautical miles from Gordon Pass26°01.205'N 82°06.586'W
Collier #1 aka Tod Sirod Reef10 nautical miles from Gordon Pass26°07.771'N 82°02.290'W
Collier #214 nautical miles from Gordon Pass26°03.731'N 82°03.316'W
Marco #116 nautical miles from Marco Pass25°41.700'N 81°46.880'W
Rooney Reef26.6 nautical miles from Marco Pass25°54.244'N 82°14.258'W


The reef is composed of pyramid-shaped limestone reef modules and old concrete benches. [2]

Limestone Sedimentary rocks made of calcium carbonate

Limestone is a carbonate sedimentary rock that is often composed of the skeletal fragments of marine organisms such as coral, foraminifera, and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3). A closely related rock is dolomite, which contains a high percentage of the mineral dolomite, CaMg(CO3)2. In old USGS publications, dolomite was referred to as magnesian limestone, a term now reserved for magnesium-deficient dolomites or magnesium-rich limestones.

Concrete Composite construction material

Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement that hardens over time—most frequently in the past a lime-based cement binder, such as lime putty, but sometimes with other hydraulic cements, such as a calcium aluminate cement or Portland cement. It is distinguished from other, non-cementitious types of concrete all binding some form of aggregate together, including asphalt concrete with a bitumen binder, which is frequently used for road surfaces, and polymer concretes that use polymers as a binder.

Marine life

Since their installation, the reef structure has been colonized by many forms of marine life including giant anemones and symbiotic cleaner shrimp, wing-oysters, tunicates, soft coral, algae, variegated and rock-boring urchins, and sea cucumbers. Fish observed at the reef include mangrove and lane snappers, sheepshead, spadefish, jack-knifefish, butterfly fish, grouper, angelfish, wrasse, and grunts. [3]

Marine life The plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries

Marine life, or sea life or ocean life, is the plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms produce oxygen and sequester carbon. Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land. The term marine comes from the Latin mare, meaning sea or ocean.

Sea anemone Order of cnidarians

Sea anemones are a group of marine, predatory animals of the order Actiniaria. They are named after the anemone, a terrestrial flowering plant, because of the colourful appearance of many. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia. As cnidarians, sea anemones are related to corals, jellyfish, tube-dwelling anemones, and Hydra. Unlike jellyfish, sea anemones do not have a medusa stage in their life cycle.

Cleaner shrimp

Cleaner shrimp is a common name for a number of swimming decapod crustaceans, that clean other organisms of parasites. They belong to any of three families, Hippolytidae, Palaemonidae, and Stenopodidae . The last of these families is more closely related to lobsters and crabs than it is to the remaining families. The term "cleaner shrimp" is sometimes used more specifically for the family Hippolytidae and the genus Lysmata.

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<i>Archosargus probatocephalus</i> species of fish

Archosargus probatocephalus, the sheepshead, is a marine fish that grows to 76 cm (30 in), but commonly reaches 30 to 50 cm. It is deep and compressed in body shape, with five or six dark bars on the side of the body over a gray background. It has sharp dorsal spines. Its diet consists of oysters, clams, and other bivalves, and barnacles, fiddler crabs, and other crustaceans. It has a hard mouth, with several rows of stubby teeth – the frontal ones closely resembling human teeth – which help crush the shells of prey.

Marco Island, Florida City in Florida, United States

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  1. Paradise Coast Artificial Reef Project
  2. 1 2 Staats, Eric (19 October 2015). "First phase of artificial reef construction completed in Gulf of Mexico off Naples, Marco Island". Naples Daily News. Archived from the original on 11 February 2016. Retrieved 17 April 2016.
  3. Desai, Jigsha (16 April 2016). "Sheepshead, JackKnife-fish flourish in artificial reefs off the coast of Naples". Naples Daily News. Archived from the original on 17 April 2016. Retrieved 17 April 2016.