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For Red Grouper Definition

author
Ava Flores
• Tuesday, 13 October, 2020
• 4 min read

The red grouper has a body with a standard length which is 2.6 to 3 times as long as it is deep. The properly is subangular with the serrations at its angle being slightly enlarged and the upper edge of the gill cover is straight.

hd grouper shutterstock footage
(Source: footage.shutterstock.com)

Contents

The They are dark reddish brown on the upper part of the head and body, shading to paler pink on the underparts, they are marked with lighter spots and blotches across their body and there are darker margins to the fins. This species has a maximum published total length of 125 centimeters (49 in), although they a more commonly found at lengths around 50 centimeters (20 in), and a maximum published weight of 23 kilograms (51 lb).

The redgrouper's typical range is coastal areas in the western Atlantic, stretching from southern Brazil to North Carolina in the US and including the Gulf of Mexico and Bermuda. The red grouper is a reversal, largely sedentary species which has an extended (~40 day) pelagic larval stage before it settles in shallow coastal hard bottom habitat as juveniles.

While primarily eating benthic invertebrates, the red grouper is an opportunistic feeder in the reef community. The diet commonly includes mantid and portend crabs, juvenile spiny lobster, and snapping shrimp, with the occasional fish.

The red grouper is of moderate size, about 125 cm and weighs 23 kg or more. When aggravated (they are highly territorial) or involved in spawning activities, these fish can very rapidly change coloration patterns, with the head or other parts of the body turning completely white, and the white spots appearing more intense.

Red grouper (Epimetheus Mario) on an excavated site on Pulley Ridges on the West Florida Shelf Red grouper actively excavate pits in the seafloor. They start digging in the sediment from the time they settle out of the plankton and continue throughout their lifetime.

grouper wallpapers
(Source: yesofcorsa.com)

They use their caudal fin and their mouths to remove debris and sediment from rocks, creating exposed surfaces on which sessile organisms actively settle (e.g., sponges, soft corals, algae). The exposure of structure also attracts a myriad of other species, including mobile invertebrates and a remarkable diversity of other fishes, from bodies and butterfly fish to grunts and snapper.

The lionfish Steroid Holsteins started invading red grouper habitat by 2008, from Florida Bay to the Florida Keys and offshore to Pulley Ridge, a despotic coral reef on the West Florida Shelf west of the Dry Tortugas. Known for being extremely capable predators on small reef fish, scientists are very interested in determining the extent to which their invasion changes the functional dynamics of associated communities.

Smithsonian Marine Station at Fort Pierce. “Helming parasites of Epimetheus Mario (Pisces: Serranidae) of the Yucatán Peninsula, southeastern Mexico” (PDF).

Although some populations are below target levels, U.S. wild-caught red grouper is still a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations. Fishing gear used to catch red grouper rarely contacts the ocean bottom and has minimal impacts on habitat.

They engulf prey whole by opening their large mouths, dilating their gill covers, rapidly drawing in a current of water, and inhaling the food. Large sharks and carnivorous marine mammals prey on adult red grouper.

grouper fillet similar
(Source: www.istockphoto.com)

Red grouper are found in the western Atlantic Ocean from Massachusetts through the Gulf of Mexico and south to Brazil. Annual catch limits are used for red grouper in the commercial and recreational fisheries.

Both the commercial and recreational fisheries have size limits to reduce harvest of immature red grouper. The commercial and recreational fishing seasons are closed from January through April to protect red grouper during their peak spawning period.

To reduce by catch, there are restrictions on the type of gear fishermen may use and where they can fish. Minimum size limits protect immature red grouper.

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Sources
1 en.wikipedia.org - https://en.wikipedia.org/wiki/Atlantic_goliath_grouper
2 oceana.org - https://oceana.org/marine-life/ocean-fishes/atlantic-goliath-grouper
3 www.fisheries.noaa.gov - https://www.fisheries.noaa.gov/species/atlantic-goliath-grouper
4 myanimals.com - https://myanimals.com/animals/wild-animals-animals/fish-wild-animals-animals/the-atlantic-goliath-grouper-characteristics-and-habitat/