Volunteers Raise Oysters to Restore Reefs
2021-12-20
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1Students at St. Stanislaus High School in Mississippi are among the volunteers along U.S. coasts raising oysters to help restore, or repair, weakened reefs.
2Oyster reefs are an important part of coastal environments.
3Each oyster filters, or cleans, 95 to 190 liters of water a day.
4Young oysters attach themselves to larger oysters and grow.
5The reefs provide living space for shrimp, crabs and fish.
6They also protect coastlines.
7In the states of Maryland, Virginia, Mississippi, and Alabama, there are more than 1,000 oyster gardens.
8Most of them are in wire cages hanging from private ports.
9Colin Wood is one of two students looking after the St. Stanislaus garden.
10He collects data and supervises other students.
11He said he was excited by the hands-on work he gets to do.
12"I didn't realize oysters had a big impact on the environment," he said.
13Dennis Hatfield grows oysters on Little Lagoon in Gulf Shores, Alabama.
14He said he is surprised each summer by the number of crabs, fish, shrimp and other animals he clears from his cages.
15He said that many of the 50,000 to 55,000 adult oysters grown there each year go to reefs in Mobile Bay.
16In the 1950s, an average of 37,400 tons of oysters were taken yearly from partly salty waters in the U.S.
17But U.S. oyster harvests fell sharply in the 1990s.
18Federal data showed the cause of the drop to be overharvesting, pollution, pests and other problems.
19Commercial farmers around the country grow oysters near the surface of water.
20Oysters develop much faster where the water holds more of the plankton they eat and predators can be more easily removed.
21Oyster gardening uses many of the same methods as farming.
22But the oysters are not being grown to be eaten.
23Oyster gardens get pulled from the water every seven to 10 days.
24The time out of the water is used to clear out small animals,
25 keep oysters from growing through the wires, and dry and clean off plant-life growing on the wires.
26Bob Stokes is director of the Galveston Bay Foundation in Texas.
27He said oyster gardening is as much about education as it is restoration.
28Oyster gardening started in the late 1990s around the Chesapeake Bay, where harvests had dropped 90 percent in 20 years.
29The Mississippi-Alabama Sea Grant's oyster gardening program was modeled after the Chesapeake's.
30The Chesapeake Bay oysters faced many problems, including two deadly diseases.
31Chris Moore is a scientist with the Chesapeake Bay Foundation.
32He said decreases in oyster numbers in the second half of the 1900s followed a more severe decrease in the 1920s from widespread overharvesting.
33Gardeners in the foundation and its member groups have added at least 15 million oysters in Maryland and 1 million in Virginia, Moore said.
34Another group called the Chesapeake Oyster Alliance has set a goal of adding 10 billion oysters by 2025.
35I'm Jonathan Evans.
1Students at St. Stanislaus High School in Mississippi are among the volunteers along U.S. coasts raising oysters to help restore, or repair, weakened reefs. 2Oyster reefs are an important part of coastal environments. Each oyster filters, or cleans, 95 to 190 liters of water a day. Young oysters attach themselves to larger oysters and grow. The reefs provide living space for shrimp, crabs and fish. They also protect coastlines. 3In the states of Maryland, Virginia, Mississippi, and Alabama, there are more than 1,000 oyster gardens. Most of them are in wire cages hanging from private ports. 4Colin Wood is one of two students looking after the St. Stanislaus garden. He collects data and supervises other students. He said he was excited by the hands-on work he gets to do. "I didn't realize oysters had a big impact on the environment," he said. 5Dennis Hatfield grows oysters on Little Lagoon in Gulf Shores, Alabama. He said he is surprised each summer by the number of crabs, fish, shrimp and other animals he clears from his cages. 6He said that many of the 50,000 to 55,000 adult oysters grown there each year go to reefs in Mobile Bay. 7In the 1950s, an average of 37,400 tons of oysters were taken yearly from partly salty waters in the U.S. But U.S. oyster harvests fell sharply in the 1990s. Federal data showed the cause of the drop to be overharvesting, pollution, pests and other problems. 8Commercial farmers around the country grow oysters near the surface of water. Oysters develop much faster where the water holds more of the plankton they eat and predators can be more easily removed. 9Oyster gardening uses many of the same methods as farming. But the oysters are not being grown to be eaten. 10Oyster gardens get pulled from the water every seven to 10 days. The time out of the water is used to clear out small animals, keep oysters from growing through the wires, and dry and clean off plant-life growing on the wires. 11Bob Stokes is director of the Galveston Bay Foundation in Texas. He said oyster gardening is as much about education as it is restoration. 12Oyster gardening started in the late 1990s around the Chesapeake Bay, where harvests had dropped 90 percent in 20 years. The Mississippi-Alabama Sea Grant's oyster gardening program was modeled after the Chesapeake's. 13The Chesapeake Bay oysters faced many problems, including two deadly diseases. Chris Moore is a scientist with the Chesapeake Bay Foundation. He said decreases in oyster numbers in the second half of the 1900s followed a more severe decrease in the 1920s from widespread overharvesting. 14Gardeners in the foundation and its member groups have added at least 15 million oysters in Maryland and 1 million in Virginia, Moore said. 15Another group called the Chesapeake Oyster Alliance has set a goal of adding 10 billion oysters by 2025. 16I'm Jonathan Evans. 17Janet McConnaughey reported on this story for the Associated Press. Jonathan Evans adapted this story for Learning English. Ashley Thompson was the editor. 18___________________________________ 19Words in This Story 20reef - n. a chain of rocks or coral or a ridge of sand at or near the surface of water 21filter - v. to pass something, such as a gas or liquid, through a filter to remove something unwanted 22cage - n. a box made of wire or metal bars in which people keep animals or birds 23impact - n. a powerful or major influence or effect 24pest - n. an epidemic disease associated with high mortality 25commercial - adj. related to or used in the buying and selling of goods and services 26predator - n. an animal that lives mostly by killing and eating other animals