ZOOMIX

Zooplankton Generated Mixing in Stratified Lakes

 Coordinatore UNIVERSITY OF BATH 

 Organization address address: CLAVERTON DOWN
city: BATH
postcode: BA2 7AY

contact info
Titolo: Ms
Nome: Hazel
Cognome: Wallis
Email: send email
Telefono: +44 1225 386822
Fax: +44 1225 386950

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 100˙000 €
 EC contributo 100˙000 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2013-CIG
 Funding Scheme MC-CIG
 Anno di inizio 2014
 Periodo (anno-mese-giorno) 2014-05-01   -   2018-04-30

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITY OF BATH

 Organization address address: CLAVERTON DOWN
city: BATH
postcode: BA2 7AY

contact info
Titolo: Ms
Nome: Hazel
Cognome: Wallis
Email: send email
Telefono: +44 1225 386822
Fax: +44 1225 386950

UK (BATH) coordinator 100˙000.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

mixing    migrations    waters    significant    lake    lakes    turbulence    water    quality    ocean    vertical    source    daily    surface    zooplankton    recent   

 Obiettivo del progetto (Objective)

'The aims of this work are to directly measure turbulence from vertical migrations of zooplankton, quantify how much mixing the migrations cause, and determine the importance of this mechanism in lakes. Answering these questions will help us better understand the physical drivers of water quality in lakes, environments upon which society depends for many key ecosystem services.

Summer time stratification in lakes suppresses vertical mixing of dissolved substances such as oxygen, nutrients, or pollutants. This can lead to adverse water quality affects such as anoxic bottom waters that result in fish kills, trapping of nutrient-laden waters in the photic zone creating ideal conditions for nuisance algal blooms, and reduced dilution of wastewaters and nonpoint source pollution.

Processes that generate turbulence below the water surface increase the mixing of the stratified waters. Recent work in the ocean has suggested that daily vertical migrations of zooplankton might be a significant source of mixing comparable with winds and tides. Zooplankton, which are significant elements of lake ecosystems as well, swim between deeper darker regions of the water column, where they stay during daylight to avoid predation, and the phytoplankton-rich surface layer, where they go to feed during the nighttime.

Because the background mixing in lakes is less than in the ocean and migrations happen twice daily, vertical migrations of zooplankton may be a significant source of turbulence and mixing in the lake environment. The work proposed here would be the first in situ measurements of zooplankton-generated turbulence in lakes. In addition to tackling recent issues of debate in the science community, this work will enhance understanding of mixing in lakes, a key issue in managing our water resources for public health and recreation.'

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