An experiment was performed to assess the potential to use native sea urchins as biocontrols for alien/invasive seaweeds. One species of urchin, tripneustes gratilla, was bedded in a 1/4 m2 plot with > 50% kappaphycus cover. Fences were made out of plastic coated chicken wire and were surveyed every month with photoquadrats to assess kappaphycus abundance. In addition, regrowth of plots where kappaphycus had been removed was monitored.
To assess the potential to use native sea urchin's as biocontrols for alien/invasive seaweeds and to monitor the regrowth of Kappaphycus.
NOAA Supplemental :Entry_ID: Unknown Sensor_Name: SCUBA, digital olympus 30/30 camera mounted on a PVC frame Project_Campaign: Hawaii Coral Reef Initiative Originating_Center: Botany Department, University of Hawaii at Manoa Storage_Medium: MS Excel and CSV ASCII Online_size: 47 Kbytes Resource Description: NODC Accession Number 0001022
ground condition
NOAA and NODC would appreciate recognition as the resource from which these data were obtained in any publications and/or other representations of these data.
2777 Kalakaua Avenue
Hawaii Coral Reef Initiative
See Lineage - Process Step
the surveys were 100% complete
One species of urchin, tripneustes gratilla, were placed in a 1/4 m2 plot with > 50% kappaphycus cover. Fences were made out of plastic coated chicken wire and were surveyed every month with photoquadrats to assess kappaphycus abundance.
3190 Maile Way, St. John 614
Files: contents Photoquads_all_1_03.xls* Excel file holding data Photoquads_Urchin.csv* CSV dump of sheet 1 (Urchin Addition Plots) Photoquads_Kappa.csv* CSV dump of sheet 2 (Kappa. Control and Remove Plots) Urchin Addition Plots: Photoquadrat data from Kane'ohe looking at how the addition of sea urchins (tripneustes gratilla) can reduce the abundance of Kappaphycusin 1/4 m2 plots. Kappaphycus Control and Remove Plots: data from control plots and from plots where we removed the alien alga Kappaphycus and monitored regrowth or overgrowth of coral every month by taking photos with a digital olympus30/30 camera mounted on a pvc frame. For each species, the numbers represent percent cover in the photoquadrat.
None
SSMC-3 Fourth Floor
1315 East West Highway
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
Prepayment by check, money order or bank card is required. Orders may be placed via fax, email, regular mail, telephone or via the NNDC Online Store.
1000 Pope Road, MSB 316
Dept. of Oceanography
University of Hawaii at Manoa
check services@nodc.noaa.gov if not available
