Ecosystem Engineers or Engineered by the Ecosystem?

Presentation Type

Event

Full Name of Faculty Mentor

Juli Harding

Other Mentors

Additional Mentor: Louis Keiner,

Major

Marine Science

Minor

Biology

Presentation Abstract

Oyster shell is an important habitat resource for oysters (Crassostrea virginica) as well as resident epifauna and associated transient nekton that depend on heterogenous reef habitat for shelter, food, or reproduction. Relationships between surficial shell and biological metrics on natural fringing reefs in North Inlet, SC were described using traditional methods and aerial photography. Oyster demographics and clump dimensions (length, displacement volume, weight) were quantified. Oysters ranged from 10-100 mm shell height at all reefs. Clump maximum length ranged from 37-280 mm with an average of 127.4 ± 42.9 mm while clump displacement volume ranged from 0.003-0.510L. Relationships between measured shell weight (g/m2; 36-974) and shell cover estimated from high resolution photographs (% shell/m2; 0.046-0.082) on replicate reefs were used to evaluate the efficacy of alternative non-destructive methods to quantify surficial shell.

Location

Lib Jackson Student Union, Atrium

Start Date

17-4-2019 4:30 PM

End Date

17-4-2019 6:30 PM

Disciplines

Oceanography

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Apr 17th, 4:30 PM Apr 17th, 6:30 PM

Ecosystem Engineers or Engineered by the Ecosystem?

Lib Jackson Student Union, Atrium

Oyster shell is an important habitat resource for oysters (Crassostrea virginica) as well as resident epifauna and associated transient nekton that depend on heterogenous reef habitat for shelter, food, or reproduction. Relationships between surficial shell and biological metrics on natural fringing reefs in North Inlet, SC were described using traditional methods and aerial photography. Oyster demographics and clump dimensions (length, displacement volume, weight) were quantified. Oysters ranged from 10-100 mm shell height at all reefs. Clump maximum length ranged from 37-280 mm with an average of 127.4 ± 42.9 mm while clump displacement volume ranged from 0.003-0.510L. Relationships between measured shell weight (g/m2; 36-974) and shell cover estimated from high resolution photographs (% shell/m2; 0.046-0.082) on replicate reefs were used to evaluate the efficacy of alternative non-destructive methods to quantify surficial shell.