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In The Grass, On The Reef: Seagrass Wrack In The Salt Marsh

2 minutes 4 seconds
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Area of high density wrack is mostly dry while low density wrack has standing water. Caption: They set up almost 100 plots comparing densities of wrack.

In the summer, seagrasses slough off old shoots and grow new ones. The sloughed off grass is pushed into salt marshes. Dr. Randall Hughes and her crew weigh the benefits of seagrass wrack versus its destructive aspect. Part of the series "In The Grass, On The Reef."

Media Details

Runtime: 2 minutes 4 seconds

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Map of coastline showing St. Joseph Bay, Apalachicola, Carrabelle, Pancea and others. Study site marked inland. The forgotten coast. Caption: It is an ideal setting for studying coastal ecosystems.
In The Grass, On The Reef
Season 2 / Ep 1
1 minutes 59 seconds
Grade Level: 7 - 12
Person standing in ankle deep water and grass holding a clipboard leans down and reaches into the water. Caption: She is researching coastal salt marshes.
In The Grass, On The Reef
Season 2 / Ep 2
2 minutes
Grade Level: 7 - 12
Close up of an opened oyster shell with a fork in the flesh. Caption: We're talking about Apalachicola oysters.
In The Grass, On The Reef
Season 2 / Ep 3
1 minutes 59 seconds
Grade Level: 7 - 12
Conical shell in sand and seagrasses. Caption: (Hughes) In many world areas seagrasses are declining.
In The Grass, On The Reef
Season 2 / Ep 4
1 minutes 59 seconds
Grade Level: 7 - 12
Closeup of a small, shelled animal being eaten by a somewhat larger shelled animal while in a bed of grass. Caption: (male) The horse conch eats other snails.
In The Grass, On The Reef
Season 2 / Ep 5
1 minutes 59 seconds
Grade Level: 7 - 12
Spat on a tray. MB Masonboro Inlet North Carolina. Caption: Spat from each family was placed on test reefs.
In The Grass, On The Reef
Season 3 / Ep 4
2 minutes 4 seconds
Grade Level: 7 - 12
Beige, light, and dark brown conical shell. Southern oyster drill (Stramonita Haemastoma). Caption: It's not clear what role drills or conchs play.
In The Grass, On The Reef
Season 3 / Ep 5
2 minutes 44 seconds
Grade Level: 7 - 12
Buckets filled with water, mesh fabric covering the top. Tubes running down the center of two adjacent rows, a cord running into the water of each bucket. Caption: Hearing experiment Phase 2 They needed to investigate if mud crabs can hear.
In The Grass, On The Reef
Season 3 / Ep 8
2 minutes 3 seconds
Grade Level: 7 - 12
Person standing on the deck of the boat with a crab cage in their hands. Ecosystem Service Creating Jobs. Caption: marshes provide many of the same benefits as oysters.
In The Grass, On The Reef
Season 4 / Ep 1
2 minutes 4 seconds
Grade Level: 7 - 12
Crabs, various grasses, snails, and broken shells. Caption: The marsh can be a rough place for plants to live.
In The Grass, On The Reef
Season 4 / Ep 3
2 minutes 3 seconds
Grade Level: 7 - 12
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