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Beata Ferencz, Magdalena Toporowska and Jaroslaw Dawidek
Due to global warming and increasing water eutrophication, understanding in-lake relationships is paramount to prevent excessive pollution and further negative changes in lakes. The physico-chemical and biological parameters, as well as nutrient variabil...
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Georgia Stamou, Matina Katsiapi, Maria Moustaka-Gouni and Evangelia Michaloudi
Grazing potential (GP, in % day-1) was estimated for the plankton communities of 13 Greek lakes covering the trophic spectrum, in order to examine its sensitiveness in discriminating different classes of ecological water quality. Lakes with high GP value...
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Weizhong Zeng, Ke Xu, Sihang Cheng, Lei Zhao and Kun Yang
Secchi depth (SD) is a valuable and feasible water quality indicator of lake eutrophication. The establishment of an automated system with efficient image processing and an algorithm suitable for the inversion of transparency in lake-rich regions could p...
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Juan V. Molner, Juan M. Soria, Rebeca Pérez-González and Xavier Sòria-Perpinyà
Water transparency, a crucial environmental indicator, was assessed during fieldwork via Secchi disk depth (ZSD) measurements. Three optical models (R490/R560, R490/R705, and R560/R705) were explored to establish a robust algorithm for ZSD estimation. Th...
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Rita B. Domingues and Ana B. Barbosa
The use of several light-related variables, such as the Secchi disc depth, the euphotic depth, and in particular, the diffuse attenuation coefficient (Kd), is deeply rooted in phytoplankton research, but these are not the most appropriate indicators of t...
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JoAnn M. Burkholder, Carol A. Kinder and Elle H. Allen
Reservoirs are increasingly valuable worldwide as potable source waters, yet in many geographic regions, their limnology and trophic status are poorly known. We characterized 14 drinking water reservoirs and their watersheds across the warming temperate/...
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Alejandra Castillo-Ramírez, Eduardo Santamaría-del-Ángel, Adriana González-Silvera, Robert Frouin, María-Teresa Sebastiá-Frasquet, Jing Tan, Jorge Lopez-Calderon, Laura Sánchez-Velasco and Luis Enríquez-Paredes
The vertical diffuse attenuation coefficient ????
K
d
(PAR
PAR
) is used for calculating the euphotic zone, the first optical depth that is important for primary productivity models. Currently, ???? (PAR)
K
d
(
PAR
)
can be estimated using an irradio...
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Jolanta Grochowska
The research was conducted in Karczemne Lake (area, 40.4 ha; maximum (max.) depth, 3.2 m) and Klasztorne Male Lake (area, 13.7 ha; max. depth, 20.0 m) located in the Kashubian Lake District (Northern Poland). From the beginning of the 1950s, these reserv...
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Juan G. Arango and Robert W. Nairn
The purpose of this study was to create different statistically reliable predictive algorithms for trophic state or water quality for optical (total suspended solids (TSS), Secchi disk depth (SDD), and chlorophyll-a (Chl-a)) and non-optical (total phosph...
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Juan Soria, Gema Caniego, Nuria Hernández-Sáez, Jose Antonio Dominguez-Gomez and Manuel Erena
The Mar Menor is a Spanish coastal lagoon of great ecological and economic interest. The agricultural and tourist activities developed in the surroundings of the lagoon, together with the modifications in its channels of connection with the Mediterranean...
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