Comparing methods for measuring phytoplankton biomass in aquaculture ponds

Algal biomass is important for aquaculture in terms of eutrophication, as a secondary metabolite threat, and as a food source for suspension feeders and benthos. In order to evaluate the applicability of an in situ FluoroProbe instrument, chlorophyll a (chl a) measured with this device was compared...

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Autores principales: YK Wang, PY Chen, HU Dahms, SL Yeh, YJ Chiu
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Publicado: Inter-Research 2016
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spelling oai:doaj.org-article:a8689d1837cc42a3aa6e4fc1020372672021-11-11T11:08:10ZComparing methods for measuring phytoplankton biomass in aquaculture ponds1869-215X1869-753410.3354/aei00208https://doaj.org/article/a8689d1837cc42a3aa6e4fc1020372672016-12-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p665-673/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Algal biomass is important for aquaculture in terms of eutrophication, as a secondary metabolite threat, and as a food source for suspension feeders and benthos. In order to evaluate the applicability of an in situ FluoroProbe instrument, chlorophyll a (chl a) measured with this device was compared to chl a measured by a fluorometer and to algal densities and biovolumes determined by direct counts. Monthly surveys were conducted in 3 types of aquaculture ponds (tilapia, milk fish, and common orient clam) from October 2011 through April 2012 in the Cigu region of Tainan City, Taiwan. Results showed that green algae were the predominant phytoplankton group, followed by cyanobacteria, euglenoids, and diatoms. The 3 types of aquaculture ponds had wide ranges of chl a, pH, salinity, turbidity, PO4-3-P, and suspended solids. Chl a measured by the FluoroProbe had significant regressions with chl a values measured by a fluorometer, and with algal densities and biovolumes determined by counting; however, when chl a was >250 µg l-1, the correlation between the FluoroProbe and the fluorometer diminished. The difference in chl a reads between these 2 methods increased when chl a concentration exceeded 200 µg l-1. Of the 4 differently colored algal groups measured by the FluoroProbe, only the green and blue groups had significant regressions with their respective biovolumes, whereas the red and brown groups had no significant regression with their respective biovolumes. Our results show the applicability of the FluoroProbe in algal monitoring of aquaculture ponds, although caution is needed at higher chl a levels.YK WangPY ChenHU DahmsSL YehYJ ChiuInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 665-673 (2016)
institution DOAJ
collection DOAJ
language EN
topic Aquaculture. Fisheries. Angling
SH1-691
Ecology
QH540-549.5
spellingShingle Aquaculture. Fisheries. Angling
SH1-691
Ecology
QH540-549.5
YK Wang
PY Chen
HU Dahms
SL Yeh
YJ Chiu
Comparing methods for measuring phytoplankton biomass in aquaculture ponds
description Algal biomass is important for aquaculture in terms of eutrophication, as a secondary metabolite threat, and as a food source for suspension feeders and benthos. In order to evaluate the applicability of an in situ FluoroProbe instrument, chlorophyll a (chl a) measured with this device was compared to chl a measured by a fluorometer and to algal densities and biovolumes determined by direct counts. Monthly surveys were conducted in 3 types of aquaculture ponds (tilapia, milk fish, and common orient clam) from October 2011 through April 2012 in the Cigu region of Tainan City, Taiwan. Results showed that green algae were the predominant phytoplankton group, followed by cyanobacteria, euglenoids, and diatoms. The 3 types of aquaculture ponds had wide ranges of chl a, pH, salinity, turbidity, PO4-3-P, and suspended solids. Chl a measured by the FluoroProbe had significant regressions with chl a values measured by a fluorometer, and with algal densities and biovolumes determined by counting; however, when chl a was >250 µg l-1, the correlation between the FluoroProbe and the fluorometer diminished. The difference in chl a reads between these 2 methods increased when chl a concentration exceeded 200 µg l-1. Of the 4 differently colored algal groups measured by the FluoroProbe, only the green and blue groups had significant regressions with their respective biovolumes, whereas the red and brown groups had no significant regression with their respective biovolumes. Our results show the applicability of the FluoroProbe in algal monitoring of aquaculture ponds, although caution is needed at higher chl a levels.
format article
author YK Wang
PY Chen
HU Dahms
SL Yeh
YJ Chiu
author_facet YK Wang
PY Chen
HU Dahms
SL Yeh
YJ Chiu
author_sort YK Wang
title Comparing methods for measuring phytoplankton biomass in aquaculture ponds
title_short Comparing methods for measuring phytoplankton biomass in aquaculture ponds
title_full Comparing methods for measuring phytoplankton biomass in aquaculture ponds
title_fullStr Comparing methods for measuring phytoplankton biomass in aquaculture ponds
title_full_unstemmed Comparing methods for measuring phytoplankton biomass in aquaculture ponds
title_sort comparing methods for measuring phytoplankton biomass in aquaculture ponds
publisher Inter-Research
publishDate 2016
url https://doaj.org/article/a8689d1837cc42a3aa6e4fc102037267
work_keys_str_mv AT ykwang comparingmethodsformeasuringphytoplanktonbiomassinaquacultureponds
AT pychen comparingmethodsformeasuringphytoplanktonbiomassinaquacultureponds
AT hudahms comparingmethodsformeasuringphytoplanktonbiomassinaquacultureponds
AT slyeh comparingmethodsformeasuringphytoplanktonbiomassinaquacultureponds
AT yjchiu comparingmethodsformeasuringphytoplanktonbiomassinaquacultureponds
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