Data

Effect of sewage nutrients on algal production, biomass and species composition in tropical tidal creeks

Australian Ocean Data Network
Burford, M.A. ; Revill, A.T. ; Smith, J. ; Clementson, L.
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=https://pid.geoscience.gov.au/dataset/ga/74428&rft.title=Effect of sewage nutrients on algal production, biomass and species composition in tropical tidal creeks&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/74428&rft.description=Microalgal blooms are one of the most visible responses to anthropogenic nutrient loadings in coastal ecosystems. However, differentiating sources of nutrients causing blooms remains a challenge. The response of phytoplankton and benthic microalgae (BMA) to nutrient loads was compared across tidal creeks with and without secondary treated sewage in a tropical estuary. Concentrations of the sewage marker, coprostanol, were higher near sewage discharge points and decreased downstream. This was commensurate with a decline in nitrogen and phosphorus concentrations suggesting that sewage was the main source of nitrogen and phosphorus. Primary productivity in the water column was limited by nitrogen availability in absence of sewage, with nitrogen saturation in the presence of sewage. Phytoplankton primary productivity rates and chlorophyll a concentrations increased in response to sewage, and there was a greater response than for BMA. There was no evidence of a change in algal pigment proportions within the phytoplankton or BMA communities. This study highlights the scale and type of response of algal communities to sewage nutrients in situ.Maintenance and Update Frequency: unknownStatement: Unknown&rft.creator=Burford, M.A. &rft.creator=Revill, A.T. &rft.creator=Smith, J. &rft.creator=Clementson, L. &rft.date=2012&rft.coverage=westlimit=130.5; southlimit=-13.0; eastlimit=132.0; northlimit=-12.0&rft.coverage=westlimit=130.5; southlimit=-13.0; eastlimit=132.0; northlimit=-12.0&rft_rights=Non-Exclusive licence to publish copyright (please provide TRIM link)&rft_rights=Non-exclusive GA&rft_rights=1.0&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Non-Exclusive licence to publish copyright (please provide TRIM link)&rft_subject=geoscientificInformation&rft_subject=External Publication&rft_subject=Scientific Journal Paper&rft_subject=coasts&rft_subject=environmental&rft_subject=geochemistry&rft_subject=marine&rft_subject=AU-NT&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Brief description

Microalgal blooms are one of the most visible responses to anthropogenic nutrient loadings in coastal ecosystems. However, differentiating sources of nutrients causing blooms remains a challenge. The response of phytoplankton and benthic microalgae (BMA) to nutrient loads was compared across tidal creeks with and without secondary treated sewage in a tropical estuary. Concentrations of the sewage marker, coprostanol, were higher near sewage discharge points and decreased downstream. This was commensurate with a decline in nitrogen and phosphorus concentrations suggesting that sewage was the main source of nitrogen and phosphorus. Primary productivity in the water column was limited by nitrogen availability in absence of sewage, with nitrogen saturation in the presence of sewage. Phytoplankton primary productivity rates and chlorophyll a concentrations increased in response to sewage, and there was a greater response than for BMA. There was no evidence of a change in algal pigment proportions within the phytoplankton or BMA communities. This study highlights the scale and type of response of algal communities to sewage nutrients in situ.

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Maintenance and Update Frequency: unknown
Statement: Unknown

Issued: 2012

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132,-12 132,-13 130.5,-13 130.5,-12 132,-12

131.25,-12.5

text: westlimit=130.5; southlimit=-13.0; eastlimit=132.0; northlimit=-12.0

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AU-NT | Earth Sciences | External Publication | Published_External | Scientific Journal Paper | coasts | environmental | geochemistry | geoscientificInformation | marine |

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uri : http://www.sciencedirect.com/science/article/pii/S0025326X12004985

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