The influence of catchment size on lake trophic status during the hemlock decline and recovery (4800 to 3500 BP) in southern Ontario lakes

1993 ◽  
pp. 371-390 ◽  
Author(s):  
Roland I. Hall ◽  
John P. Smol
Keyword(s):  
Trophic Status ◽  
Southern Ontario ◽  
Lake Trophic Status ◽  
Hemlock Decline ◽  
Catchment Size

Littoral zones as sources of biodegradable dissolved organic carbon in lakes

2008 ◽  
Vol 65 (11) ◽  
pp. 2454-2460 ◽  
Author(s):  
E. G. Stets ◽  
J. B. Cotner
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Aquatic Macrophytes ◽  
Trophic Status ◽  
Surface Sediments ◽  
Decay Curve ◽  
Lake Area ◽  
Lake Trophic Status ◽  
Littoral Zones ◽  
Biodegradable Dissolved Organic Carbon

A survey of 12 lakes in Minnesota, USA, was conducted to examine the factors controlling variability in biodegradable dissolved organic carbon (BDOC) concentration. The principal question addressed was whether BDOC concentration was more strongly related to lake trophic status or morphometric parameters. BDOC concentration was determined by incubating filtered lake water for a period of 15 months and fitting an exponential decay curve to measured DOC concentrations. BDOC concentrations varied from 73 to 427 µmol C·L–1 and composed 15%–63% of the total DOC pool. There were no significant correlations between BDOC and measures of lake trophic status. Instead, BDOC was most closely associated with the percentage of lake area covered by littoral zone, suggesting a significant source of BDOC from aquatic macrophytes and lake surface sediments.

PCR-DGGE Fingerprinting Analysis of Plankton Communities and Its Relationship to Lake Trophic Status

2009 ◽  
Vol 94 (5) ◽  
pp. 528-541 ◽  
Author(s):  
Li Wu ◽  
Yuhe Yu ◽  
Tanglin Zhang ◽  
Weisong Feng ◽  
Xiang Zhang ◽  
...  
Keyword(s):  
Trophic Status ◽  
Fingerprinting Analysis ◽  
Lake Trophic Status ◽  
Plankton Communities

Phytoplankton communities in the crater lakes of western Uganda, and their indicator species in relation to lake trophic status

2019 ◽  
Vol 107 ◽  
pp. 105563 ◽  
Author(s):  
Angela Nankabirwa ◽  
Wannes De Crop ◽  
Thijs Van der Meeren ◽  
Christine Cocquyt ◽  
Pierre-Denis Plisnier ◽  
...  
Keyword(s):  
Indicator Species ◽  
Trophic Status ◽  
Crater Lakes ◽  
Lake Trophic Status ◽  
Phytoplankton Communities ◽  
Western Uganda

Postglacial shifts in lake trophic status based on a multiproxy study of a humic lake

The Holocene ◽  
2014 ◽  
Vol 25 (3) ◽  
pp. 495-507 ◽  
Author(s):  
Danuta Drzymulska ◽  
Magdalena Fiłoc ◽  
Mirosława Kupryjanowicz ◽  
Krystyna Szeroczyńska ◽  
Piotr Zieliński
Keyword(s):  
Trophic Status ◽  
Humic Lake ◽  
Lake Trophic Status

Profundal Sediment Organic Content and Physical Character Do Not Reflect Lake Trophic Status, but Rather Reflect Inorganic Sedimentation and Exposure

1992 ◽  
Vol 49 (7) ◽  
pp. 1431-1438 ◽  
Author(s):  
D. J. Rowan ◽  
J. Kalff ◽  
J. B. Rasmussen
Keyword(s):  
Organic Matter ◽  
Water Content ◽  
Bulk Density ◽  
Trophic Status ◽  
Organic Content ◽  
Sedimentation Rates ◽  
Lake Surface ◽  
Lake Trophic Status ◽  
Sediment Organic Content ◽  
Lake Surface Area

An analysis of profundal sediment data from 83 north-temperate lakes shows that increasing inorganic sedimentation and exposure (or lake surface area) results in lower organic content and water content, and greater bulk density. Because sedimentation rates are unavailable for most lakes, we estimate sedimentation rates from readily available catchment sediment loads using a mass-balance model. The mass-balance estimate of sediment retention (per square metre of depositional zone) is an excellent predictor of measured inorganic sedimentation rates for a data set covering 19 lakes (R2 = 0.92). Multiple regressions are used to predict organic content, water content, and bulk density of profundal sediment from inorganic sedimentation rates and either exposure or lake surface area, which are surrogates for the energy of the depositional environment. These analyses explain 76, 74, and 66% of the between-lake variation in the three sediment parameters, respectively. Sediment organic content is not related to lake trophic status (chlorophyll a) and is negatively correlated with net organic matter sedimentation rates. The common occurrence of organic-rich sediments in oligotrophic shield lakes is, therefore, not a reflection of high organic matter inputs, but rather the extremely low inputs of mineral sediments to these lakes.

The Effect of Lake Trophic Status on Daily P/B of Bosmina longirostris

Oikos ◽  
1979 ◽  
Vol 33 (1) ◽  
pp. 64 ◽  
Author(s):  
Anthony Janicki ◽  
John DeCosta
Keyword(s):  
Trophic Status ◽  
Bosmina Longirostris ◽  
Lake Trophic Status

Shallow lake trophic status linked to late Holocene climate and human impacts

2008 ◽  
Vol 42 (1) ◽  
pp. 51-64 ◽  
Author(s):  
Matthew N. Waters ◽  
Michael F. Piehler ◽  
Antonio B. Rodriguez ◽  
Joseph M. Smoak ◽  
Thomas S. Bianchi
Keyword(s):  
Shallow Lake ◽  
Late Holocene ◽  
Trophic Status ◽  
Human Impacts ◽  
Holocene Climate ◽  
Lake Trophic Status

DIATOM ASSEMBLAGES AS INDICATORS OF LAKE TROPHIC STATUS IN SOUTHEASTERN ONTARIO LAKES1

1993 ◽  
Vol 29 (5) ◽  
pp. 575-586 ◽  
Author(s):  
Catherine E. Christie ◽  
John P. Smol
Keyword(s):  
Trophic Status ◽  
Diatom Assemblages ◽  
Lake Trophic Status
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