نتایج جستجو برای: blooms syndrome

تعداد نتایج: 626312  

Journal: :Bulletin of mathematical biology 2001
U Ebert M Arrayás N Temme B Sommeijer J Huisman

We motivate and analyse a reaction-advection-diffusion model for the dynamics of a phytoplankton species. The reproductive rate of the phytoplankton is determined by the local light intensity. The light intensity decreases with depth due to absorption by water and phytoplankton. Phytoplankton is transported by turbulent diffusion in a water column of given depth. Furthermore, it might be sinkin...

2010
Catia Pesquita Cosmin Stroe Isabel F. Cruz Francisco M. Couto

BLOOMS is an ontology matching method developed as part of an ontology extension system. It combines lexical similarity measures with similarity propagation based on semantic distance. For the participation in OAEI 2010 BLOOMS was integrated into the Agreement Maker system which has competed in previous years. Although BLOOMS was specifically designed to be as automated as possible, and thus fa...

Journal: :Marine Ecology Progress Series 2014

Journal: :Marine Ecology Progress Series 2018

2003
ANNIKA STÅHL-DELBANCO

Many phytoplankton species form resting stages when environmental conditions are harsh and these can survive for a long time in the sediment (Livingstone and Jaworski, 1980; Lampert, 1995). When environmental conditions are favourable again, they recruit to the water phase and continue growing (Hansson et al., 1994; Hansson, 1996a). Many species of cyanobacteria, for example Microcystis, Anabae...

Journal: :Ocean & coastal management 2009
Donald M Anderson

Virtually every coastal country in the world is affected by harmful algal blooms (HABs, commonly called "red tides"). These phenomena are caused by blooms of microscopic algae. Some of these algae are toxic, and can lead to illness and death in humans, fish, seabirds, marine mammals, and other oceanic life, typically as a result of the transfer of toxins through the food web. Sometimes the dire...

2007
M. Sandulescu C. Lopez E. Hernandez-Garcia U. Feudel

We study the interplay of hydrodynamic mesoscale structures and the growth of plankton in the wake of an island, and its interaction with a coastal upwelling. Our focus is on a mechanism for the emergence of localized plankton blooms in vortices. Using a coupled system of a kinematic flow mimicking the mesoscale structures behind the island and a simple three component model for the marine ecos...

2010
E. Breitbarth R. J. Bellerby C. C. Neill M. V. Ardelan M. Meyerhöfer E. Zöllner P. L. Croot U. Riebesell

Rising atmospheric CO2 is acidifying the surface ocean, a process which is expected to greatly influence the chemistry and biology of the future ocean. Following the development of iron-replete phytoplankton blooms in a coastal mesocosm experiment at 350, 700, and 1050 μatm pCO2, we observed significant increases in dissolved iron concentrations, Fe(II) concentrations, and Fe(II) half-life time...

Journal: :Science 2012
Kevin R Arrigo Donald K Perovich Robert S Pickart Zachary W Brown Gert L van Dijken Kate E Lowry Matthew M Mills Molly A Palmer William M Balch Frank Bahr Nicholas R Bates Claudia Benitez-Nelson Bruce Bowler Emily Brownlee Jens K Ehn Karen E Frey Rebecca Garley Samuel R Laney Laura Lubelczyk Jeremy Mathis Atsushi Matsuoka B Greg Mitchell G W K Moore Eva Ortega-Retuerta Sharmila Pal Chris M Polashenski Rick A Reynolds Brian Schieber Heidi M Sosik Michael Stephens James H Swift

Phytoplankton blooms over Arctic Ocean continental shelves are thought to be restricted to waters free of sea ice. Here, we document a massive phytoplankton bloom beneath fully consolidated pack ice far from the ice edge in the Chukchi Sea, where light transmission has increased in recent decades because of thinning ice cover and proliferation of melt ponds. The bloom was characterized by high ...

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