Data

Microphytobenthos community production at Great Palm Island, Great Barrier Reef

Name: Microphytobenthos community production at Great Palm Island, Great Barrier Reef
Published: 2025

Australian Institute of Marine Science

Australian Institute of Marine Science (AIMS)

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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://apps.aims.gov.au/metadata/view/5efa780c-373d-4278-8d58-2b63527289e1&rft.title=Microphytobenthos community production at Great Palm Island, Great Barrier Reef&rft.identifier=https://apps.aims.gov.au/metadata/view/5efa780c-373d-4278-8d58-2b63527289e1&rft.publisher=Australian Institute of Marine Science (AIMS)&rft.description=Production of the microphytobenthos community on a nearshore coral reef in Cannon Bay, Great Palm Island was measured over 7 trips between February 1996 and February 1997. Benthic microalgal production was measured in 4-chamber data logging respirometers placed to avoid Calianassa spp. mounds. The water within each chamber was flushed for 4 minutes every 26 minutes. Oxygen concentration within the chambers, in situ irradiance (PAR) and water temperature were recorded simultaneously at 1 minute intervals over at least 24 hours.The effect of nutrients excreted by holothurians on productivity was measured during experiments run in December 1996 (2) and February 1997 (3). Two 4 chamber respirometers were deployed for each experiment, for a period of 24 hours. An individual Holothuria atra (wet weight 140 to 220 g) was enclosed in a cartridge filter housing attached to 4 of the 8 chambers. The water (containing ammonium excreted by the holothurian) was injected into the attached chamber during each flushing. For 4 of the experiments, duplicate water samples for ammonium analyses were taken from all chambers on 2-3 occasions, 5 minutes after a flushing interval ended.To estimate microalgal biomass in sediments, 3 replicate samples of the upper 5 mm of sediment were collected under each chamber after completion of each respirometer deployment and the chlorophyll a concentration determined. This research was undertaken to:1. investigate seasonal variation in net and gross microphytobenthos community production on a near-shore reef in the Great Barrier Reef 2. investigate the influence of light and temperature on production3. test whether the presence of holothurians is beneficial to in situ benthic microalgal production due to increased availability of nutrientsMaintenance and Update Frequency: notPlannedStatement: Statement: The respirometer used in these experiments is described in:Klumpp DW, McKinnon D and Daniel P (1987) Damselfish territories: zones of high productivity on coral reefs. Mar Ecol Prog Ser 40:40-51.Irradiance (as photosynthetically active irradiance, PAR) was recorded with a Li-Cor 192SB underwater quantum sensor.Water samples for ammonium analysis were collected by syringe, filtered through 0.45 µm acid washed and precombusted GF/F filters and stored at -20°C until analysis. Ammonium was determined, after modification for a 10 ml sample volume, by the method described in:Koroleff F (1983) Determination of ammonia. In: Grasshoff K, Ehrhard M and Kremling K (eds) Methods of seawater analysis. Verlag Chemie, Weinheim. p150-157.Sediment samples for chlorophyll a analysis were dried at 60°C for 48 hours and 1.5 g of sediment was extracted in 3 ml of 70% ethanol following the method described in:Sartory DP and Grobbelaar JU (1984) Extraction of chlorophyll a from freshwater plankton for spectrophotometric analysis. Hydrobiologia 114: 177-187.Absorbance of the extracts was measured in a spectrophotometer at 750 and 665 nm before and after acidification and chlorophyll a concentrations were calculated applying the formula in:Nusch EA (1980) Comparison of different methods for chlorophyll and phaeopigment determination. Arch Hydrobiol Beih Ergeb Limnol 14: 14-30.&rft.creator=Australian Institute of Marine Science (AIMS) &rft.date=2025&rft.coverage=westlimit=146.583333; southlimit=-18.683333; eastlimit=146.583333; northlimit=-18.683333&rft.coverage=westlimit=146.583333; southlimit=-18.683333; eastlimit=146.583333; northlimit=-18.683333&rft_rights=Creative Commons Attribution-NonCommercial 3.0 Australia License http://creativecommons.org/licenses/by-nc/3.0/au/&rft_rights=Use Limitation: All AIMS data, products and services are provided as is and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights=Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: Australian Institute of Marine Science (AIMS). (2009). Microphytobenthos community production at Great Palm Island, Great Barrier Reef. https://apps.aims.gov.au/metadata/view/5efa780c-373d-4278-8d58-2b63527289e1, accessed[date-of-access].&rft_rights=Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.&rft_subject=oceans&rft.type=dataset&rft.language=English Access the data

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Use Limitation: All AIMS data, products and services are provided "as is" and AIMS does not warrant their fitness for a particular purpose or non-infringement. While AIMS has made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. AIMS make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, AIMS exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

Attribution: Format for citation of metadata sourced from Australian Institute of Marine Science (AIMS) in a list of reference is as follows: "Australian Institute of Marine Science (AIMS). (2009). Microphytobenthos community production at Great Palm Island, Great Barrier Reef. https://apps.aims.gov.au/metadata/view/5efa780c-373d-4278-8d58-2b63527289e1, accessed[date-of-access]".

Resource Usage:Use of the AIMS data is for not-for-profit applications only. All other users shall seek permission for use by contacting AIMS. Acknowledgements as prescribed must be clearly set out in the user's formal communications or publications.

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Production of the microphytobenthos community on a nearshore coral reef in Cannon Bay, Great Palm Island was measured over 7 trips between February 1996 and February 1997. Benthic microalgal production was measured in 4-chamber data logging respirometers placed to avoid Calianassa spp. mounds. The water within each chamber was flushed for 4 minutes every 26 minutes. Oxygen concentration within the chambers, in situ irradiance (PAR) and water temperature were recorded simultaneously at 1 minute intervals over at least 24 hours.The effect of nutrients excreted by holothurians on productivity was measured during experiments run in December 1996 (2) and February 1997 (3). Two 4 chamber respirometers were deployed for each experiment, for a period of 24 hours. An individual Holothuria atra (wet weight 140 to 220 g) was enclosed in a cartridge filter housing attached to 4 of the 8 chambers. The water (containing ammonium excreted by the holothurian) was injected into the attached chamber during each flushing. For 4 of the experiments, duplicate water samples for ammonium analyses were taken from all chambers on 2-3 occasions, 5 minutes after a flushing interval ended.To estimate microalgal biomass in sediments, 3 replicate samples of the upper 5 mm of sediment were collected under each chamber after completion of each respirometer deployment and the chlorophyll a concentration determined.
This research was undertaken to:1. investigate seasonal variation in net and gross microphytobenthos community production on a near-shore reef in the Great Barrier Reef 2. investigate the influence of light and temperature on production3. test whether the presence of holothurians is beneficial to in situ benthic microalgal production due to increased availability of nutrients

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Maintenance and Update Frequency: notPlanned

Statement: Statement: The respirometer used in these experiments is described in:Klumpp DW, McKinnon D and Daniel P (1987) Damselfish territories: zones of high productivity on coral reefs. Mar Ecol Prog Ser 40:40-51.Irradiance (as photosynthetically active irradiance, PAR) was recorded with a Li-Cor 192SB underwater quantum sensor.Water samples for ammonium analysis were collected by syringe, filtered through 0.45 µm acid washed and precombusted GF/F filters and stored at -20°C until analysis. Ammonium was determined, after modification for a 10 ml sample volume, by the method described in:Koroleff F (1983) Determination of ammonia. In: Grasshoff K, Ehrhard M and Kremling K (eds) Methods of seawater analysis. Verlag Chemie, Weinheim. p150-157.Sediment samples for chlorophyll a analysis were dried at 60°C for 48 hours and 1.5 g of sediment was extracted in 3 ml of 70% ethanol following the method described in:Sartory DP and Grobbelaar JU (1984) Extraction of chlorophyll a from freshwater plankton for spectrophotometric analysis. Hydrobiologia 114: 177-187.Absorbance of the extracts was measured in a spectrophotometer at 750 and 665 nm before and after acidification and chlorophyll a concentrations were calculated applying the formula in:Nusch EA (1980) Comparison of different methods for chlorophyll and phaeopigment determination. Arch Hydrobiol Beih Ergeb Limnol 14: 14-30.

Notes

Credit
Uthicke, Sven, Dr (Principal Investigator)

Modified: 19 09 2025

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text: westlimit=146.583333; southlimit=-18.683333; eastlimit=146.583333; northlimit=-18.683333

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Other Information

Microphytobenthos community production at a nearshore coral reef: seasonal variation and response to ammonium recycled by holothurians: Uthicke S and Klumpp DW (1998) Microphytobenthos community production at a nearshore coral reef: seasonal variation and response to ammonium recycled by holothurians. Marine Ecology Progress Series 169: 1-11.

local : articleId=1433

Identifiers

global : 5efa780c-373d-4278-8d58-2b63527289e1