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

Información del proyecto

DBL-OA

Identificador del acuerdo de subvención: 701366

DOI

10.3030/701366

Proyecto finalizado el 31 Julio 2018

Fecha de la firma de la CE 28 Septiembre 2016

Fecha de inicio 15 Junio 2017

Fecha de finalización 14 Junio 2020

Financiado con arreglo a

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Coste total

€ 264 110,40

Aportación de la UE

€ 264 110,40

Coordinado por

HELMHOLTZ-ZENTRUM FUR OZEANFORSCHUNG KIEL (GEOMAR)
Germany

Objetivo

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.

Ámbito científico (EuroSciVoc)

• ciencias naturales › ciencias biológicas › microbiología › ficología
• ciencias naturales › ciencias biológicas › ecología › ecosistemas › ecosistemas costeros

Palabras clave

• ocean acidification
• hydrodynamism
• species interactions
• seaweed communities
• macroalgae

Programa(s)

• H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions PROGRAMA PRINCIPAL
  
• H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
  

Tema(s)

• MSCA-IF-2015-GF - Marie Skłodowska-Curie Individual Fellowships (IF-GF)
  

Régimen de financiación

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

Convocatoria de propuestas

H2020-MSCA-IF-2015

Coordinador

HELMHOLTZ-ZENTRUM FUR OZEANFORSCHUNG KIEL (GEOMAR)

• Aportación neta de la UEn: € 264 110,40
• Dirección: WISCHHOFSTRASSE 1-3 ; 24148 Kiel ; Alemania
• Región: Schleswig-Holstein › Schleswig-Holstein › Kiel, Kreisfreie Stadt
• Tipo de actividad: Research Organisations
• Coste total: € 264 110,40

Socios (1)

Socio

UNIVERSITY OF TASMANIA

Australia

• Aportación neta de la UEn: € 0,00
• Dirección: CHURCHILL AVENUE SANDY BAY ; 7001 Hobart
• Tipo de actividad: Higher or Secondary Education Establishments
• Coste total: € 178 380,00