Data

Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 14/01/2007 to 19/01/2007 (Hobart - Dumont d'Urville)

University of Tasmania, Australia
McMinn, Andrew, Prof.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://metadata.imas.utas.edu.au/geonetwork/srv/eng/search?uuid=072c4d10-963d-4a6c-9c23-fa5ab5a434db&rft.title=Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 14/01/2007 to 19/01/2007 (Hobart - Dumont d'Urville)&rft.identifier=http://metadata.imas.utas.edu.au/geonetwork/srv/eng/search?uuid=072c4d10-963d-4a6c-9c23-fa5ab5a434db&rft.description=These data were collected on the RV L'Astrolabe (platform code: FHZI) from 14/01/2007 to 19/01/2007 on a trip from Hobart to Dumont D'Urville. Maximum photochemical efficiency of photosystem II (PSII), also called maximum quantum yield of PSII (Fv/Fm), has become one of the most widely utilized fluorescence parameters in phytoplankton research. It represents the potential photochemical efficiency, which is the probability that the light energy captured by the photosynthetic apparatus is being utilized as photochemistry. Fv/Fm has been shown to have an instant response to variations in physical and chemical properties and is interpreted as a diagnostic of the overall health or competence of phytoplankton. Together with the absorption cross section area of PSII and chlorophyll concentration, it can be used to measure primary production (Cheah et al. 2011, Deep Sea Research). Seawater from 3 m depth was supplied continuously from the ship’s clean seawater line. FRR fluorescence yields were measured continuously at 1 minute intervals in dark-adapted state (! 15 minutes dark-adaptation) using a flash sequence consisting of a series of 100 subsaturation flashlets (1.1 μs flash duration and 2.8 μs interflash period) and a series of 20 relaxation flashlets (1.1 μs flash duration and 51.6 μs interflash period).&rft.creator=McMinn, Andrew, Prof. &rft.date=2011&rft.coverage=northlimit=-43.05626167; southlimit=-66.63849667; westlimit=139.9897967; eastLimit=147.4793833&rft.coverage=northlimit=-43.05626167; southlimit=-66.63849667; westlimit=139.9897967; eastLimit=147.4793833&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5&rft_subject=oceans&rft_subject=Countries | Australia&rft_subject=Global/Oceans | Southern Ocean&rft_subject=Continents | Antarctica&rft_subject=SEA SURFACE TEMPERATURE&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=OCEAN TEMPERATURE&rft_subject=SALINITY&rft_subject=SALINITY/DENSITY&rft_subject=Fast Repetition Rate Fluorometer (FRRF)&rft_subject=Maximum quantum yield (Fv/Fm)&rft_subject=Photosynthesis&rft_subject=primary production&rft_subject=Biological Oceanography&rft_subject=EARTH SCIENCES&rft_subject=OCEANOGRAPHY&rft_subject=Marine and Estuarine Ecology (incl. Marine Ichthyology)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=ECOLOGY&rft_subject=Palaeoecology&rft_subject=Phycology (incl. Marine Grasses)&rft_subject=PLANT BIOLOGY&rft_subject=L'Astrolabe {FHZI}&rft_subject=Latitude&rft_subject=Longitude&rft_subject=Minimum fluorescence in the light chamber of the FRRF (also used as a proxy for biomass)&rft_subject=maximum fluorescence in the light chamber of the FRRF&rft_subject=variable fluorescence (FmL - FoL)&rft_subject=maximum quantum yield of photosystem II ( (FmL - FoL) / FmL)&rft_subject=functional absorption cross section of PSII (measure of the proportion of light harvested for photochemistry)&rft_subject=connectivity between PSII reaction centres under actinic light&rft_subject=time constant of electron transport from PSII to PSI&rft_subject=Instrument's photomultiplier electronic sensitivity (1-256)&rft_subject=Temperature of the water body&rft_subject=Practical salinity of the water body&rft_subject=Downwelling vector irradiance as photons (PAR wavelengths) in the water body&rft_subject=water temperature sensor&rft_subject=thermosalinographs&rft_subject=radiometers&rft.type=dataset&rft.language=English Access the data

Licence & Rights:

Open Licence view details
CC-BY

Creative Commons Attribution 2.5 Australia License
http://creativecommons.org/licenses/by/2.5

Access:

Other

Brief description

These data were collected on the RV L'Astrolabe (platform code: FHZI) from 14/01/2007 to 19/01/2007 on a trip from Hobart to Dumont D'Urville.

Maximum photochemical efficiency of photosystem II (PSII), also called maximum quantum yield of PSII (Fv/Fm), has become one of the most widely utilized fluorescence parameters in phytoplankton research. It represents the potential photochemical efficiency, which is the probability that the light energy captured by the photosynthetic apparatus is being utilized as photochemistry. Fv/Fm has been shown to have an instant response to variations in physical and chemical properties and is interpreted as a diagnostic of the overall health or competence of phytoplankton. Together with the absorption cross section area of PSII and chlorophyll concentration, it can be used to measure primary production (Cheah et al. 2011, Deep Sea Research).

Seawater from 3 m depth was supplied continuously from the ship’s clean seawater line. FRR fluorescence yields were measured continuously at 1 minute intervals in dark-adapted state (! 15 minutes dark-adaptation) using a flash sequence consisting of a series of 100 subsaturation flashlets (1.1 μs flash duration and 2.8 μs interflash period) and a series of 20 relaxation flashlets (1.1 μs flash duration and 51.6 μs interflash period).

Notes

Credit
Australian Ocean Data Network (AODN)
Credit
Institute for Marine and Antarctic Studies (IMAS)

Created: 04 08 2011

Data time period: 14 01 2007 to 19 01 2007

147.4793833,-43.05626167 147.4793833,-66.63849667 139.9897967,-66.63849667 139.9897967,-43.05626167 147.4793833,-43.05626167

143.73459,-54.84737917

text: northlimit=-43.05626167; southlimit=-66.63849667; westlimit=139.9897967; eastLimit=147.4793833

Identifiers
  • global : 072c4d10-963d-4a6c-9c23-fa5ab5a434db