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1. A database of chlorophyll a in Australian waters

Author

Davies, CH, Ajani, P, Armbrecht, L, Atkins, N, Baird, ME, Beard, J, Bonham, P, Burford, M, Clementson, L, Coad, P, Crawford, C, Dela-Cruz, J, Doblin, MA, Edgar, S, Eriksen, R, Everett, JD, Furnas, M, Harrison, DP, Hassler, C, Henschke, N, Hoenner, X, Ingleton, T, Jameson, I, Keesing, J, Leterme, SC, James McLaughlin, M, Miller, M, Moffatt, D, Moss, A, Nayar, S, Patten, NL, Patten, R, Pausina, SA, Proctor, R, Raes, E, Robb, M, Rothlisberg, P, Saeck, EA, Scanes, P, Suthers, IM, Swadling, KM, Talbot, S, Thompson, P, Thomson, PG, Uribe-Palomino, J, Van Ruth, P, Waite, AM, Wright, S, Richardson, AJ, Davies, CH, Ajani, P, Armbrecht, L, Atkins, N, Baird, ME, Beard, J, Bonham, P, Burford, M, Clementson, L, Coad, P, Crawford, C, Dela-Cruz, J, Doblin, MA, Edgar, S, Eriksen, R, Everett, JD, Furnas, M, Harrison, DP, Hassler, C, Henschke, N, Hoenner, X, Ingleton, T, Jameson, I, Keesing, J, Leterme, SC, James McLaughlin, M, Miller, M, Moffatt, D, Moss, A, Nayar, S, Patten, NL, Patten, R, Pausina, SA, Proctor, R, Raes, E, Robb, M, Rothlisberg, P, Saeck, EA, Scanes, P, Suthers, IM, Swadling, KM, Talbot, S, Thompson, P, Thomson, PG, Uribe-Palomino, J, Van Ruth, P, Waite, AM, Wright, S, and Richardson, AJ

Abstract

© The Author(s) 2018. Chlorophyll a is the most commonly used indicator of phytoplankton biomass in the marine environment. It is relatively simple and cost effective to measure when compared to phytoplankton abundance and is thus routinely included in many surveys. Here we collate 173, 333 records of chlorophyll a collected since 1965 from Australian waters gathered from researchers on regular coastal monitoring surveys and ocean voyages into a single repository. This dataset includes the chlorophyll a values as measured from samples analysed using spectrophotometry, fluorometry and high performance liquid chromatography (HPLC). The Australian Chlorophyll a database is freely available through the Australian Ocean Data Network portal (https://portal.aodn.org.au/). These data can be used in isolation as an index of phytoplankton biomass or in combination with other data to provide insight into water quality, ecosystem state, and relationships with other trophic levels such as zooplankton or fish.

Published
2018

3. A database of chlorophyll a in Australian waters.

Author

Davies CH, Ajani P, Armbrecht L, Atkins N, Baird ME, Beard J, Bonham P, Burford M, Clementson L, Coad P, Crawford C, Dela-Cruz J, Doblin MA, Edgar S, Eriksen R, Everett JD, Furnas M, Harrison DP, Hassler C, Henschke N, Hoenner X, Ingleton T, Jameson I, Keesing J, Leterme SC, James McLaughlin M, Miller M, Moffatt D, Moss A, Nayar S, Patten NL, Patten R, Pausina SA, Proctor R, Raes E, Robb M, Rothlisberg P, Saeck EA, Scanes P, Suthers IM, Swadling KM, Talbot S, Thompson P, Thomson PG, Uribe-Palomino J, van Ruth P, Waite AM, Wright S, and Richardson AJ

Subjects
Australia, Databases, Factual, Ecosystem, Phytoplankton, Seawater, Chlorophyll
Abstract

Chlorophyll a is the most commonly used indicator of phytoplankton biomass in the marine environment. It is relatively simple and cost effective to measure when compared to phytoplankton abundance and is thus routinely included in many surveys. Here we collate 173, 333 records of chlorophyll a collected since 1965 from Australian waters gathered from researchers on regular coastal monitoring surveys and ocean voyages into a single repository. This dataset includes the chlorophyll a values as measured from samples analysed using spectrophotometry, fluorometry and high performance liquid chromatography (HPLC). The Australian Chlorophyll a database is freely available through the Australian Ocean Data Network portal (https://portal.aodn.org.au/). These data can be used in isolation as an index of phytoplankton biomass or in combination with other data to provide insight into water quality, ecosystem state, and relationships with other trophic levels such as zooplankton or fish.

Published
2018
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4. Changes to chronic nitrogen loading from sewage discharges modify standing stocks of coastal phytoplankton.

Author

Saeck EA, O'Brien KR, Weber TR, and Burford MA

Subjects
Environmental Monitoring, Nitrogen toxicity, Phytoplankton metabolism, Seasons, Sewage statistics & numerical data, Water Pollutants toxicity, Nitrogen analysis, Phytoplankton growth & development, Seawater chemistry, Sewage analysis, Water Pollutants analysis
Abstract

Nutrient delivery in subtropical coastal systems is predominantly via acute episodic high flow events. However, continuous nutrient discharges from point sources alter these natural fluctuations in nutrient delivery, and are therefore likely to lead to different ecosystem responses. The aim of this study was to assess how a reduction in chronic sewage nutrient inputs affected chlorophyll a (chl a) concentrations in a subtropical bay, in the context of seasonal fluctuations in riverine nutrient inflows. Reduced nutrient inputs from a large sewage treatment plant (STP) resulted in lower mean dissolved inorganic nitrogen and phytoplankton chl a concentrations during both the austral summer wet and winter dry season. This was measurable within 10 y of nutrient reductions and despite the confounding effects of nutrient inflow events. Our study demonstrates that reductions in STP inputs can have significant effects on phytoplankton biomass despite confounding factors over relatively short time frames., (Copyright © 2013 Elsevier Ltd. All rights reserved.)

Published
2013
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