Cargando…
Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary
We examined how tidal changes and which physical factors affected holo- and meroplankton assemblages in a subtropical estuary in Taiwan in February 1999. A factor analysis showed that during tidal flooding, the water mass properties changed from low salinity (5–16) and high particulate organic carbo...
Autores principales: | , , , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2010
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864669/ https://www.ncbi.nlm.nih.gov/pubmed/20454516 http://dx.doi.org/10.1093/plankt/fbq026 |
_version_ | 1782180790830891008 |
---|---|
author | Hsieh, Hwey-Lian Fan, Lan-Feng Chen, Chang-Po Wu, Jiunn-Tzong Liu, Wen-Cheng |
author_facet | Hsieh, Hwey-Lian Fan, Lan-Feng Chen, Chang-Po Wu, Jiunn-Tzong Liu, Wen-Cheng |
author_sort | Hsieh, Hwey-Lian |
collection | PubMed |
description | We examined how tidal changes and which physical factors affected holo- and meroplankton assemblages in a subtropical estuary in Taiwan in February 1999. A factor analysis showed that during tidal flooding, the water mass properties changed from low salinity (5–16) and high particulate organic carbon (POC, 2.6–4.5 mg L(−1)) content to increasing salinity and high total suspended matter content (29.0–104.5 mg L(−1)). With a receding tide, the water became more saline again, and its velocity increased (from non-detectable to 0.67 m s(−1)). One-way ANOVA showed that the distributions of four dominant taxa were affected by the ebb tide and exhibited two distinct groups. The first group consisted of non-motile invertebrate eggs and weakly swimming polychaete sabellid embryos and larvae (at densities of 1.25–1.40 ind. L(−1)), while the second consisted of better-swimming copepods and polychaete spionid larvae (at densities of 0.70–1.65 ind. L(−1)). A canonical correlation analysis demonstrated that the former group occurred at sites with greater freshwater input, higher POC content and greater depth, whereas the latter group was significantly associated with sites subject to seawater and faster flows. We propose that a two-layered circulation process and tidally induced oscillations in water movements might account for the distributional differences between these two groups. |
format | Text |
id | pubmed-2864669 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-28646692010-05-07 Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary Hsieh, Hwey-Lian Fan, Lan-Feng Chen, Chang-Po Wu, Jiunn-Tzong Liu, Wen-Cheng J Plankton Res Original Articles We examined how tidal changes and which physical factors affected holo- and meroplankton assemblages in a subtropical estuary in Taiwan in February 1999. A factor analysis showed that during tidal flooding, the water mass properties changed from low salinity (5–16) and high particulate organic carbon (POC, 2.6–4.5 mg L(−1)) content to increasing salinity and high total suspended matter content (29.0–104.5 mg L(−1)). With a receding tide, the water became more saline again, and its velocity increased (from non-detectable to 0.67 m s(−1)). One-way ANOVA showed that the distributions of four dominant taxa were affected by the ebb tide and exhibited two distinct groups. The first group consisted of non-motile invertebrate eggs and weakly swimming polychaete sabellid embryos and larvae (at densities of 1.25–1.40 ind. L(−1)), while the second consisted of better-swimming copepods and polychaete spionid larvae (at densities of 0.70–1.65 ind. L(−1)). A canonical correlation analysis demonstrated that the former group occurred at sites with greater freshwater input, higher POC content and greater depth, whereas the latter group was significantly associated with sites subject to seawater and faster flows. We propose that a two-layered circulation process and tidally induced oscillations in water movements might account for the distributional differences between these two groups. Oxford University Press 2010-06 2010-03-17 /pmc/articles/PMC2864669/ /pubmed/20454516 http://dx.doi.org/10.1093/plankt/fbq026 Text en © The Author 2010. Published by Oxford University Press http://creativecommons.org/licenses/by-nc/2.0/uk/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Articles Hsieh, Hwey-Lian Fan, Lan-Feng Chen, Chang-Po Wu, Jiunn-Tzong Liu, Wen-Cheng Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title | Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title_full | Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title_fullStr | Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title_full_unstemmed | Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title_short | Effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
title_sort | effects of semidiurnal tidal circulation on the distribution of holo- and meroplankton in a subtropical estuary |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2864669/ https://www.ncbi.nlm.nih.gov/pubmed/20454516 http://dx.doi.org/10.1093/plankt/fbq026 |
work_keys_str_mv | AT hsiehhweylian effectsofsemidiurnaltidalcirculationonthedistributionofholoandmeroplanktoninasubtropicalestuary AT fanlanfeng effectsofsemidiurnaltidalcirculationonthedistributionofholoandmeroplanktoninasubtropicalestuary AT chenchangpo effectsofsemidiurnaltidalcirculationonthedistributionofholoandmeroplanktoninasubtropicalestuary AT wujiunntzong effectsofsemidiurnaltidalcirculationonthedistributionofholoandmeroplanktoninasubtropicalestuary AT liuwencheng effectsofsemidiurnaltidalcirculationonthedistributionofholoandmeroplanktoninasubtropicalestuary |