Seasonal use of a macrotidal estuary by the endangered dwarf sawfish, Pristis clavata

2021 ◽  
Author(s):  
David L. Morgan ◽  
Karissa O. Lear ◽  
Emma Dobinson ◽  
Adrian C. Gleiss ◽  
Travis Fazeldean ◽  
...  
Keyword(s):  
Macrotidal Estuary

Implementation of Self-Organizing Maps (SOM) to analyses of environmental parameters and phytoplankton biomass in a macrotidal estuary and artificial lake

2012 ◽  
Vol 93 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Roksana Jahan ◽  
Hyu Chang Choi ◽  
Young Seuk Park ◽  
Young Cheol Park ◽  
Ji Ho Seo ◽  
...  
Keyword(s):  
Phytoplankton Biomass ◽  
Algal Blooms ◽  
Suspended Solids ◽  
Inorganic Nitrogen ◽  
Environmental Parameters ◽  
Ecological Data ◽  
Self Organizing Maps ◽  
Macrotidal Estuary ◽  
Phytoplankton Communities ◽  
Self Organizing

Self-Organizing Maps (SOM) have been used for patterning and visualizing ten environmental parameters and phytoplankton biomass in a mactrotidal (>10 m) Gyeonggi Bay and artificial Shihwa Lake during 1986–2004. SOM segregated study areas into four groups and ten subgroups. Two strikingly alternative states are frequently observed: the first is a diverse non-eutrophic state designated by three groups (SOM 1–3), and the second is a eutrophic state (SOM 4: Shihwa Lake and Upper Gyeonggi Bay; summer season) characterized by enhanced nutrients (3 mg l−1 dissolved inorganic nitrogen, 0.1 mg l−1 PO4) that act as a signal and response to that signal as algal blooms (24 µg chlorophyll-a l−1). Bloom potential in response to nitrification is affiliated with high temperature (r = 0.26), low salinity (r = −0.40) and suspended solids (r = –0.27). Moreover, strong stratification in the Shihwa Lake has accelerated harmful algal blooms and hypoxia. The non-eutrophic states (SOM 1–3) are characterized by macro-tidal estuaries exhibiting a tolerance to pollution with nitrogen-containing nutrients and retarding any tendency toward stratification. SOM 1 (winter) is more distinct from SOM 4 due to higher suspended solids (>50 mg l−1) caused by resuspension that induces light limitation and low chlorophyll-a (<5 µg l−1). In addition, eutrophication-induced shifts in phytoplankton communities are noticed during all the seasons in Gyeonggi Bay. Overall, SOM showed high performance for visualization and abstraction of ecological data and could serve as an efficient ecological map that can specify blooming regions and provide a comprehensive view on the eutrophication process in a macrotidal estuary.

scholarly journals Turbidity maximum formation in a well-mixed macrotidal estuary: The role of tidal pumping

2014 ◽  
Vol 119 (11) ◽  
pp. 7705-7724 ◽  
Author(s):  
Qian Yu ◽  
Yunwei Wang ◽  
Jianhua Gao ◽  
Shu Gao ◽  
Burg Flemming
Keyword(s):  
Turbidity Maximum ◽  
Tidal Pumping ◽  
Macrotidal Estuary

High-resolution simulations of a macrotidal estuary using SUNTANS

2009 ◽  
Vol 28 (1-3) ◽  
pp. 167-192 ◽  
Author(s):  
B. Wang ◽  
O.B. Fringer ◽  
S.N. Giddings ◽  
D.A. Fong
Keyword(s):  
High Resolution ◽  
Macrotidal Estuary

River flow control on intertidal mudflat sedimentation in the mouth of a macrotidal estuary

Geomorphology ◽  
2015 ◽  
Vol 239 ◽  
pp. 174-181 ◽  
Author(s):  
Antoine Cuvilliez ◽  
Robert Lafite ◽  
Julien Deloffre ◽  
Maxence Lemoine ◽  
Estelle Langlois ◽  
...  
Keyword(s):  
Flow Control ◽  
River Flow ◽  
Intertidal Mudflat ◽  
Macrotidal Estuary

Measurement of Cordgrass, Spartina alterniflora, Production in a Macrotidal Estuary, Bay of Fundy

Estuaries ◽  
1989 ◽  
Vol 12 (1) ◽  
pp. 27 ◽  
Author(s):  
Peter J. Cranford ◽  
Donald C. Gordon ◽  
Carl M. Jarvis
Keyword(s):  
Spartina Alterniflora ◽  
Bay Of Fundy ◽  
Macrotidal Estuary

Overall bacterial community composition and abundance of nitrifiers and denitrifiers in a typical macrotidal estuary

2018 ◽  
Vol 126 ◽  
pp. 540-548 ◽  
Author(s):  
Weijing Zhu ◽  
Cheng Wang ◽  
Faqian Sun ◽  
Liancheng Zhao ◽  
Wenjie Dou ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
Macrotidal Estuary
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