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Abiotic Factors In An Estuary

Written By Monday, October 31, 2022 Add Comment Edit

Abstract

To assess changes in abiotic and biotic factors between flood and ebb tides, we investigated the seasonal phytoplankton dynamics and ecology weather condition along a salinity slope at 14 stations in the Seomjin River estuary (SRE), Korea, and conducted bioassays to investigate the effect of nutrient improver (+N, +P, and +NP) on phytoplankton growth. Saltwater intrusion upstream was greatly dependent on the corporeality of freshwater discharge resulting from seasonal rainfall. There was a strong negative correlation between salinity and the nitrate+nitrite concentration (p < 0.001), and betwixt salinity and the silicate concentration (p < 0.001), but no clear correlation between salinity and the ammonium concentration, or salinity and the phosphate concentration (p > 0.01). This indicates that the Northward and Si loading increased as a event of freshwater input. The algal bioassays showed that high phytoplankton growth rates were usually recorded in response to the +NP treatment, but in the saltwater zone, the phytoplankton community besides responded chop-chop to the +N treatment, and to the +P treatment in the freshwater zone. The range of nutrient limitation depended on freshwater discharge. The seasonal and horizontal distribution of phytoplankton communities inverse along the salinity slope. The significant differences in abiotic factors between flood and ebb tides play important roles in controlling the biotic factors, including the occurrence of aquatic organisms including microalgae.

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Funding

This research was supported past the Basic Core Technology Development Program for the Oceans and the Polar Regions of the National Research Foundation (NRF) funded by the Ministry building of Science, ICT and Time to come Planning (grant number NRF-2016M1A5A1027456), and KIOST projects (PE99606).

Author information

Authors and Affiliations

  1. Southward Sea Environment Research Middle, KIOST (Korea Found of Ocean Science and Technology), Geoje, 656-830, South korea

    Minji Lee & Seung Ho Baek

  2. Marine Science Institute, University of Texas at Austin, Port Aransas, TX, 78373, USA

    Bum Soo Park

Corresponding author

Correspondence to Seung Ho Baek.

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Communicated by James L. Pinckney

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Cite this article

Lee, Thousand., Park, B.S. & Baek, Southward.H. Tidal Influences on Biotic and Abiotic Factors in the Seomjin River Estuary and Gwangyang Bay, Korea. Estuaries and Coasts 41, 1977–1993 (2018). https://doi.org/10.1007/s12237-018-0404-9

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  • DOI : https://doi.org/10.1007/s12237-018-0404-9

Keywords

  • Phytoplankton customs
  • Seomjin River estuary
  • Food limitation
  • Overflowing and ebb tides

Abiotic Factors In An Estuary,

Source: https://link.springer.com/article/10.1007/s12237-018-0404-9

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