Results 81 to 90 of about 228,585 (362)

Hypertrophic phytoplankton: an overview [PDF]

, 1992
An overview is provided of studies on hypertrophic phytoplankton in order to explore the subject and to suggest uncovered areas of research in this increasingly important theme.
Cobelas, Miguel Alvarez, Jacobsen, Bodil A.   +1 more
core  

A lag bloom pattern of phytoplankton after freshwater input events revealed by daily samples during summer in Qinhuangdao coastal water, China

Frontiers in Microbiology
Phytoplankton blooms have become a global concern due to their negative impacts on public health, aquaculture, tourism, and the economic stability of coastal regions.
Gang Wang, Gang Wang, Gang Wang, Yike He, Yike He, Zuoyi Chen, Zuoyi Chen, Huixin Liu, Huixin Liu, Qiuzhen Wang, Chu Peng, Jiabo Zhang, Jiabo Zhang   +12 more
doaj   +1 more source

Slower swimming promotes chemotactic encounters between bacteria and small phytoplankton [PDF]

Chemotaxis enables marine bacteria to increase encounters with phytoplankton cells by reducing their search times, provided that bacteria detect noisy chemical gradients around phytoplankton. Gradient detection depends on bacterial phenotypes and phytoplankton size: large phytoplankton produce spatially extended but shallow gradients, whereas small ...
arxiv   +1 more source

Plankton-FL: Exploration of Federated Learning for Privacy-Preserving Training of Deep Neural Networks for Phytoplankton Classification [PDF]

arXiv, 2022
Creating high-performance generalizable deep neural networks for phytoplankton monitoring requires utilizing large-scale data coming from diverse global water sources. A major challenge to training such networks lies in data privacy, where data collected at different facilities are often restricted from being transferred to a centralized location.
arxiv  

Nutrient enrichment—but not warming—increases nitrous oxide emissions from shallow lake mesocosms

Limnology and Oceanography, EarlyView.
Abstract Shallow lakes and ponds play a crucial role in the processing of carbon and other nutrients. However, many lakes and ponds worldwide are affected by climate change and nutrient pollution. How these pressures affect the emission of the greenhouse gas nitrous oxide (N2O) is unclear.
Joachim Audet, Eti E. Levi, Erik Jeppesen, Thomas A. Davidson   +3 more
wiley   +1 more source

Integrating functional diversity, food web processes, and biogeochemical carbon fluxes into a conceptual approach for modeling the upper ocean in a high-CO2 world [PDF]

, 2005
Marine food webs influence climate by channeling carbon below the permanent pycnocline, where it can be sequestered. Because most of the organic matter exported from the euphotic zone is remineralized within the "upper ocean" (i.e., the water column ...
Legendre, Louis, Rivkin, Richard B.
core   +1 more source

Content in nine minerals and seven vitamins of rotifers (Brachionus plicatilis) fed commercial diets and two forms of Nannochloropsis oculata

Journal of the World Aquaculture Society
The objective of the present study was to determine the effects of spray‐dried and fresh forms of the microalgae Nannochloropsis oculata and other commonly used commercial diets on vitamin and mineral compositions of rotifer produced under commercial ...
Kamil Mert Eryalçın, David Dominguez, Marisol Izquierdo   +2 more
doaj   +1 more source

Temperature orchestrates phytoplankton community and environment in mountain stream for enhancing resource use efficiency

Frontiers in Marine Science
Warming is a key factor influencing the function of the structure and function of phytoplankton communities. However, the impacts of temperature on phytoplankton resource use efficiency (RUE) in mountain rivers remain poorly understood.
Li Ji, Huayong Zhang, Huayong Zhang, Zhongyu Wang, Yonglan Tian, Wang Tian, Zhao Liu   +6 more
doaj   +1 more source

Ecosystem-level stabilizing effects of biodiversity via nutrient-diversity feedbacks in multitrophic systems [PDF]

arXiv, 2019
Statistical averaging and asynchronous population dynamics as portfolio mechanisms are considered as the most important processes with which biodiversity contributes to ecosystem stability. However, portfolio theories usually regard biodiversity as a fixed property, but overlook the dynamics of biodiversity altered by other ecosystem components.
arxiv  

Bloom compression alongside marine heatwaves contemporary with the Oregon upwelling season

Limnology and Oceanography, EarlyView.
Abstract Marine heatwave (MHW) events have led to acute decreases in primary production and phytoplankton biomass in the surface ocean, particularly at the mid latitudes. In the Northeast Pacific, these anomalous events have occasionally encroached onto the Oregon shelf during the ecologically important summer upwelling season.
Ian T. Black, Maria T. Kavanaugh, Clare E. Reimers   +2 more
wiley   +1 more source