Results 121 to 130 of about 22,415 (310)

A simple index for assessing cumulative human impacts on mountain lakes

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez   +3 more
wiley   +1 more source

Características limnológicas de una laguna turbia orgánica de la provincia de La Pampa y variación estacional del zooplancton

open access: yesBiología Acuática, 2019
In La Pampa province, shallow lakes (water bodies of low depth, generally polimictic and with high trophic level) are abundant and broadly distributed. Although previous contributions on these shallow lakes are about their ecology and zooplankton, only ...
Santiago Andrés Echaniz   +2 more
doaj  

Influence of Landscape and Lake Characteristics on Long‐Term Water‐Level Responses in Shallow Lakes of the Sub‐Humid Boreal Plains, Canada

open access: yesWater Resources Research
Shallow lakes are important ecosystems highly susceptible to water‐level fluctuations and desiccation caused by climate cycles and anthropogenic pressures. To better predict and manage the impacts of disturbance we examined the natural variability over a
S. Leader   +4 more
doaj   +1 more source

Sediment potentially controls in-lake phosphorus cycling and harmful cyanobacteria in shallow, eutrophic Utah Lake.

open access: yesPLoS ONE, 2019
Lakes worldwide are impacted by eutrophication and harmful algal or cyanobacteria blooms (HABs) due to excessive nutrients, including legacy P released from sediments in shallow lakes.
Matthew C Randall   +8 more
doaj   +1 more source

Quantifying temporal dynamics of greenhouse gas emissions in lake mesocosms: Deployment of a low‐cost measurement system

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak   +6 more
wiley   +1 more source

INTRA-HABITAT HETEROGENEITY OF MACROZOOBENTHIC COMMUNITY UNDER VARYING DEGREES OF EUTROPHICATION AND SEDIMENT CHARACTERISTICS IN A CHINESE LARGE SHALLOW LAKE (LAKE TAIHU)

open access: yes, 2012
Comparative studies on macrozoobenthic communities under varying degrees of eutrophication and sediment characteristics were conducted in a Chinese large shallow lake (Lake Taihu). Twelve sites within the lake were sampled in September 2009.
Song, Chunlei   +7 more
core  

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Shallow lake, captioned: 'Good duck hunting.' SCS-1, C-1503.

open access: yes, 1939
Shallow lake, captioned 'Good duck hunting.' SCS-1, C-1503. From the Paul Saft photographic album, SCS-1, C-1503, 1938-39, depicting camp life, taken mostly in the Moscow, Lewiston, Robinson Lake areas.SCS-1C ...
Paul Saft
core  

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