Opendata, web and dolomites

DBL-OA

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

Total Cost €

0

EC-Contrib. €

0

Partnership

0

Views

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 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.

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

Project "DBL-OA" data sheet

The following table provides information about the project.

Coordinator
HELMHOLTZ ZENTRUM FUR OZEANFORSCHUNG KIEL 

Organization address
address: WISCHHOFSTRASSE 1-3
city: KIEL
postcode: 24148
website: www.geomar.de

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

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    HELMHOLTZ ZENTRUM FUR OZEANFORSCHUNG KIEL DE (KIEL) coordinator 264˙110.00
2    UNIVERSITY OF TASMANIA AU (Hobart) partner 0.00

Map

 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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