Opendata, web and dolomites


Living in the diffusive boundary layer of seaweeds a potential refuge habitat from oceanacidification

Total Cost €


EC-Contrib. €






 DBL-OA project word cloud

Explore the words cloud of the DBL-OA project. It provides you a very rough idea of what is the project "DBL-OA" about.

physiology    calcifying    organisms    sheltering    acidification    hemispheres    coastal    conducting    calcareous    calcite    dense    northern    world    species    physical    fucales    supplying    co2    dominant    atmospheric    skeletons    natural    tasmania    local    compare    cm    calcifiers    chemical    elucidating    canopies    acidic    community    ecosystem    innovative    marine    canopy    dbl    understory    food    layer    causes    habitat    mm    ecosystems    generality    absorption    interactions    ecologically    seas    seawater    chemistry    threatened    metabolism    functioning    negative    worms    refugia    invertebrates    predicted    laboratory    southern    germany    surface    examine    bryozoans    offset    fuclean    sustained    boundary    ph    microhabitats    seaweeds    thick    ocean    environment    varies    tube    sometimes    engineers    experiments    diffusive    modify    dissolution    hydrodynamic    morphologically    engineer    water    algal    observations    understand    modification    thin    combine    flow    oceans    fauna    brown    thereby    depending    blade    algae    rigorous    living    forming    temperate    environmental    seaweed    thickness    ant    primary    morphology    impairs    producers    oa    communities    excess   

Project "DBL-OA" data sheet

The following table provides information about the project.


Organization address
city: KIEL
postcode: 24148

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 264˙110 €
 EC max contribution 264˙110 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-GF
 Starting year 2017
 Duration (year-month-day) from 2017-06-15   to  2020-06-14


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
2    UNIVERSITY OF TASMANIA AU (Hobart) partner 0.00


 Project objective

The world’s oceans are becoming more acidic due to the sustained absorption of excess atmospheric CO2. Ocean acidification (OA) is predicted to affect the physiology of marine organisms at a specific level with calcifying species being particularly threatened because low pH impairs the formation, and causes dissolution, of their calcite skeletons. In temperate coastal communities, seaweeds are ecosystem engineers that modify their local chemical (e.g. pH) and physical (e.g. water flow) environment; this modification might offset the negative effects of OA on calcifiers. Brown seaweeds (Order Fucales) are ecologically dominant primary producers of temperate coastal seas, supplying food and habitat for calcifying fauna living on their blade surface (e.g. bryozoans, tube worms) but also forming dense canopies sheltering understory calcareous algae. At the surface of all seaweeds, there is a thin (mm) layer of seawater called the “diffusive boundary layer” (DBL) whose chemistry, including pH, is controlled by the seaweed’s metabolism. Depending on algal morphology, the DBL thickness varies, forming a sometimes thick (6 cm) DBL associated with the seaweed canopy, thus providing more or less complex microhabitats for associated species. The proposed program will combine field observations with rigorous laboratory experiments to examine the ability of morphologically distinct seaweeds to engineer their hydrodynamic and pH environment, and determine the resultant effects on the growth and physiology of associated invertebrates and calcifying algae. To know species interactions under environmental change is important to understand community functioning in a future ocean. This innovative project will compare the generality of responses by conducting experiments using the same novel methods in Fuclean communities from the southern (Tasmania) and northern (Germany) hemispheres, thereby elucidating the extent to which seaweed-based ecosystems can provide natural refugia from OA.

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The information about "DBL-OA" are provided by the European Opendata Portal: CORDIS opendata.

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