[Parent_DIF='K082_2001_2007_NZ']
|
The physiology of Phymatolithon foecundum from Cape Evans Entry ID: K082_2001_2002_NZ_4 |
||||||||||||
|
[
Update this Record
]
|
Summary
|
Abstract:
Phymatolithon foecundum is a coralline growth found in the coastal benthic environment. Benthic surveys indicated that P. foecundum is abundant throughout the deep gradients (10-30m depth). A range of approaches were taken to determine the light vs photosynthesis characteristics of this growth form including both in situ and laboratory experiments. A diving-PAM fluorometer to log photosynthetic yield of a chosen piece of coralline algae attached to a rock was installed and made measurements at 20 minute intervals over a 15 hour period. Three deployments were made at depths of 16-20m. In the laboratory, coralline covered rocks were incubated in -1 °C water and used in two experiements. In the first, the surface of the coralline crust was exposed to irradiance intensities similar to those expected when ice-out occurs. Using a PAM fluorometer, the short term response of yeild vs irradiance characteristics were measured. In the second, oxygen micro-electrodes were installed to measure changes in oxygen gradients in the layer of water above the coralline crust under a range of irradiance conditions. This data will allow prediction of coralline algae to irradiance conditions during ice-free periods.
|
Related URL
|
Link:
VIEW PROJECT HOME PAGE
Link: VIEW PROJECT HOME PAGE Description: LGP-Latitudinal Gradient Project |
Parent DIF
|
This data set description is a member of a collection. The collection is described in K082_2001_2007_NZ |
Geographic Coverage
| N: -77.6347 | S: -77.6347 | E: 166.4145 | W: 166.4145 |
| Min Depth: 15 | Max Depth: 25 |
Temporal Coverage
| Start Date: 2003-10-28 |
| Stop Date: 2003-11-05 |
Location Keywords
|
CONTINENT
> ANTARCTICA
> CAPE EVANS
GEOGRAPHIC REGION > POLAR |
Science Keywords
| OCEANS >OCEAN OPTICS >FLUORESCENCE [Definition] |
| OCEANS >OCEAN OPTICS >PHOTOSYNTHETICALLY ACTIVE RADIATION [Definition] |
| BIOLOGICAL CLASSIFICATION >PLANTS [Definition] |
| OCEANS >OCEAN CHEMISTRY >PIGMENTS >CHLOROPHYLL [Definition] |
ISO Topic Category
|
BIOTA
OCEANS |
Project
| LGP >Latitudinal Gradient Project [Information] |
| EBA >Evolution and Biodiversity in the Antarctic [Information] |
Data Set Progress
| COMPLETE |
Originating Center
Data Center
|
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
| |||
Personnel
|
VONDA
CUMMINGS Role: INVESTIGATOR Phone: +64 7 856 7026 Fax: +64 7 856 0151 Email: v.cummings at niwa.co.nz Contact Address: NIWA PO Box 11-115 City: Hamilton Country: New Zealand |
|
SHULAMIT
GORDON Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand |
Publications/References
Creation and Review Dates
DIF Creation Date:
2001-02-14
Last DIF Revision Date:
2008-08-14
| [ Update this Record ] |
