Results 81 to 90 of about 15,354 (255)

Consistency of Targeted Metatranscriptomics and Morphological Characterization of Phytoplankton Communities

Frontiers in Microbiology, 2020
The composition of phytoplankton community is the basis for environmental monitoring and assessment of the ecological status of aquatic ecosystems. Community composition studies of phytoplankton have been based on time-consuming and expertise-demanding light microscopy analyses.
Mäki, Anita, Salmi, Pauliina, Aalto, Sanni L., Tiirola, Marja, Vuorio, Kristiina   +5 more
openaire   +4 more sources

Phytoplankton community structure and water quality assessment in Xuanwu Lake, China

Frontiers in Environmental Science
Phytoplankton community structure influences the water quality of freshwater lakes and attracts the attention worldwide. The physicochemical parameters including dissolved oxygen (DO), total nitrogen, total phosphorus, NH4+-N and CODMn and biological ...
Senhu Qu, Junxiao Zhou
doaj   +1 more source

Biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities

Journal of Animal Ecology, EarlyView.
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin, Gaël Grenouillet, Ignasi Arranz, Julien Cucherousset   +3 more
wiley   +1 more source

Waterbird zoogeochemical effects shape wetland nutrient dynamics and algal communities in Laurentian Great Lakes coastal freshwater wetlands

Journal of Animal Ecology, EarlyView.
Distinct waterbird species influence nutrient cycling through guano contributions in Great Lakes coastal wetlands. Waterbird‐derived nutrients favour distinct algal communities and wetland sediments rapidly remove waterbird nutrients via biogeochemical processes.
Taylor C. Michael, Paisley Kostick, Matthew A. Wuensch, David M. Costello   +3 more
wiley   +1 more source

The superposition method for the reconstruction of food webs

Methods in Ecology and Evolution, EarlyView.
Abstract Understanding trophic positions is essential for analysing complex food webs. While calculating these positions can be straightforward when feeding relationships and their proportions are known, determining diet coefficients traditionally requires substantial time and effort.
Ettore Barbieri, Naoto F. Ishikawa
wiley   +1 more source

Biogeochemical, sedimentological and dinoflagellate‐based reconstruction of the Holocene palaeoenvironment of the east Limfjord, Denmark

Boreas, EarlyView.
To assess how the eastern part of the Limfjord system has changed over the Holocene, relative to the wider Limfjord and western Baltic region, a sedimentary succession spanning c. 9600–150 cal. a BP was collected from Nibe Bredning, near Sebbersund, from a shallow coastal inlet along the eastern connection between the Limfjord and the Kattegat (north ...
Gabriella M. Weiss, Jonathan P. Lewis, Paula J. Reimer, David B. Ryves, Peter Rasmussen, Jesper Olsen   +5 more
wiley   +1 more source

Estimating the total mortality of seabirds following a marine heat wave

Conservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers, William Fulton, Silke Stuckenbrock, Alexander L. Bond   +3 more
wiley   +1 more source

The Effects of Nutrient Additions on Kokanee in Dworshak Reservoir, Idaho

Fisheries Management and Ecology, EarlyView.
ABSTRACT We investigated the effects of whole reservoir nitrogen (N) addition on kokanee growth in Dworshak Reservoir, Idaho. We hypothesized that N addition would improve the growth of kokanee (Oncorhynchus nerka) at a given level of abundance by increasing the availability of Daphnia, an important food source.
Sean M. Wilson, Matthew P. Corsi, Eric J. Stark, Eli A. Felts, Andrew M. Dux, Ryan S. Hardy   +5 more
wiley   +1 more source

Increased anoxia following species invasion of a eutrophic lake

Limnology and Oceanography Letters
Species invasions can disrupt aquatic ecosystems by re‐wiring food webs. A trophic cascade triggered by the invasion of the predatory zooplankter spiny water flea (Bythotrephes cederströmii) resulted in increased phytoplankton due to decreased ...
Robin R. Rohwer, Robert Ladwig, Paul C. Hanson, Jake R. Walsh, M. Jake Vander Zanden, Hilary A. Dugan   +5 more
doaj   +1 more source

Climate Vulnerability of Australian Seafood Systems: A National Assessment of Exposure and Adaptive Capacity

Fisheries Oceanography, EarlyView.
ABSTRACT Marine waters are becoming warmer and acidified and experiencing more intense and longer heatwaves under climate change. These changes are already impacting marine ecosystems and seafood production, which are vital for supporting food security and economic productivity.
Stephanie Brodie, Laura K. Blamey, Ana Bugnot, Rodrigo H. Bustamante, Julia L. Blanchard, Lara Buhagiar, Elizabeth A. Fulton, Alistair J. Hobday, Éva E. Plagányi, Anthony J. Richardson, Richard Matear, Skipton N. C. Woolley, Rebecca Darbyshire   +12 more
wiley   +1 more source