Results 71 to 80 of about 58,401 (291)

Surface primary producer phenology in Dease Strait, NU, Canada, examined using submersed oceanographic sensors and satellite remote sensing

Arctic Science
Thinning sea ice cover and earlier melt in the Arctic impact primary producer (PP) phenology, causing earlier ice algal bloom termination and phytoplankton bloom commencement.
Kiran Yendamuri, Julienne Stroeve, Jens K. Ehn, William J. Williams, Vishnu Nandan, Brent G.T. Else, Alexander S. Komarov, Christina A. Braybrook, Mike Dempsey, C.J. Mundy   +9 more
doaj   +1 more source

Drivers and food web effects of Gonyostomum semen blooms [PDF]

, 2013
The flagellate Gonyostomum semen forms dense late-summer blooms in humic lakes and is a nuisance to swimmers because it forms a slimy coat on the skin, causing irritation in sensitive individuals. Increasing occurrence and bloom incidence of G. semen has
Johansson, Karin S. L.
core  

Effects of salinization on tropical freshwater wetland primary producers and aquatic invertebrates

Oikos, EarlyView.
Sea level rise is expected to transform coastal aquatic ecosystems world‐wide. The freshwater wetlands of tropical northern Australia are among the most biodiverse and productive ecosystems on the continent, but owing to high regional rates of sea level rise coupled with low‐lying land and large tides they are increasingly affected by saltwater ...
Tegan L. Dedman, Erica A. Garcia, Jenny Davis, R. Keller Kopf   +3 more
wiley   +1 more source

A novel algal bloom risk assessment framework by integrating environmental factors based on explainable machine learning

Ecological Informatics
In recent years, the algal blooms have intensified, posing mounting threats to aquatic ecosystems and water security. However, most previous studies merely detected algal blooms according to the characteristics of the water body at the time of algal ...
Lingfang Gao, Yulin Shangguan, Zhong Sun, Qiaohui Shen, Lianqing Zhou   +4 more
doaj   +1 more source

Fourteen-Year Record (2000–2013) of the Spatial and Temporal Dynamics of Floating Algae Blooms in Lake Chaohu, Observed from Time Series of MODIS Images

Remote Sensing, 2015
As the fifth largest freshwater lake in China, Lake Chaohu has drawn increasing attention due to the decline in water quality and the occurrence of massive algal blooms. We applied an algae pixel-growing algorithm to MODIS Terra or Aqua data (2100 images)
Yuchao Zhang, Ronghua Ma, Min Zhang, Hongtao Duan, Steven Loiselle, Jinduo Xu   +5 more
doaj   +1 more source

Distilling food web dynamics: top–down and bottom–up drivers of extinction and trophic cascades

Oikos, EarlyView.
Quantifying population dynamics is a fundamental challenge in ecology and evolutionary biology, particularly for species that are cryptic, microscopic, or extinct. Traditional approaches rely on continuous representations of population size, but in many cases, the precise number of individuals is unknowable.
Justin D. Yeakel
wiley   +1 more source

Trend of harmful algal bloom dynamics from GOCI observed diurnal variation of chlorophyll a off Southeast coast of China

Frontiers in Marine Science
Timely and accurate observations of harmful algal blooms dynamics help to coordinate coastal protection and reduce the damage in advance. To date, predicting changes in the spatial distribution of algal blooms has been challenging due to the lack of ...
Yuying Xu, Yuying Xu, Yuying Xu, Yuying Xu, Jianyu Chen, Jianyu Chen, Jianyu Chen, Qingjie Yang, Xiaoyi Jiang, Yu Fu, Delu Pan, Delu Pan   +11 more
doaj   +1 more source

A Study of Phytoplankton Dynamics in Lake Fayetteville as a Means of Assessing Water Quality [PDF]

, 1971
Phytoplankton community was analyzed for seasonal and vertical distribution in Lake Fayetteville. This northwest Arkansas reservoir maintains a stable water level and chemical input with a relatively constant, slow overflow.
Meyer, Richard L.
core   +2 more sources

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

Oikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber, Nicolas Loeuille, Isabelle Gounand   +2 more
wiley   +1 more source

Carbon and nitrogen assimilation in the Bering Sea clams Nuculana radiata and Macoma moesta [PDF]

, 2012
We analyzed bulk carbon and nitrogen stable isotope values (delta C-13 and delta N-15) of the benthic clams Nuculana radiata and Macoma moesta from the Bering Sea during controlled feeding experiments (spring of 2009 and 2010) using isotopically labeled ...
Gradinger, Rolf, Iken, Katrin, Weems, Jared, Wooller, Matthew   +3 more
core