Lena Granhag

Docent at Mechanics and Maritime Sciences, Maritime Studies, Maritime Environment and Energy Systems

Lena's background is in marine ecology working with biofouling on ship hulls. During a Marie Curie Fellowship at Plymouth Marine Laboratory in UK, Lena worked with the impact of bacterial films for development of biofouling, using the technique Fluorescence in situ Hybridization (FISH) to detect and localize different bacteria. Lena also works with marine alien species introduced with ballast water and via ship hulls and is a member of the expert group Ballast Water and Other Ship Vectors in International Marine Research Council (International Council for the Exploration of the Sea ICES).

Source: chalmers.se

Projects

2015–2018

Sustainable Shipping and Environment of the Baltic Sea region (SHEBA)

Ida-Maja Hassellöv Maritime Environment and Energy Systems
Rickard Bensow Marine Technology
Martin Eriksson Maritime Environment and Energy Systems
Lena Granhag Maritime Environment and Energy Systems
Erik Ytreberg Maritime Environment and Energy Systems
Kent Salo Maritime Environment and Energy Systems
Magda Wilewska-Bien Maritime Environment and Energy Systems
Baltic Organisations' Network for Funding Science EEIG (BONUS)
Swedish Environmental Protection Agency

2015–2017

Increased energy efficiency in ships through reduced hull fouling

Lena Granhag Maritime Environment and Energy Systems
Rickard Bensow Marine Technology
Dinis Soares Reis de Oliveira Maritime Environment and Energy Systems
Swedish Energy Agency

2017–2018

Nutrient input to the Baltic Sea from shipping

Lena Granhag Maritime Environment and Energy Systems
Magda Wilewska-Bien Maritime Environment and Energy Systems
Karin Andersson Maritime Environment and Energy Systems
BalticSea2020

2013–2013

HELCOM ALIENS 3

Karin Andersson Maritime Environment and Energy Systems
Lena Granhag Maritime Environment and Energy Systems
Baltic Marine Environment Protection Commission (Helsonki Commission HELCOM)

There might be more projects where Lena Granhag participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2016

The nutrient load from food waste generated onboard ships in the Baltic Sea

Karin Andersson, Lena Granhag, Magda Wilewska-Bien
Marine Pollution Bulletin. Vol. 105 (1), p. 359-366
Journal article
2016

Future Work on Drag and Boundary Layer Properties of Biofouling Collected From Commercial Vessels

Lena Granhag, Dinis Oliveira
1st Hull Performance & Insight Conference (HullPIC), p. 82-95
Conference contribution
2016

Shipping and the environment

Selma Brynolf, Lena Granhag, Erik Svensson et al
Shipping and the Environment: Improving Environmental Performance in Marine Transportation, p. 3-27
Chapter in monograph, book
2016

Improving environmental performance in shipping

Fredrik Lindgren, Philip Linné, Lena Granhag et al
Shipping and the Environment: Improving Environmental Performance in Marine Transportation, p. 399-418
Chapter in monograph, book
2016

Discharges to the sea

Karin Andersson, Magda Wilewska-Bien, Martin Eriksson et al
Shipping and the Environment: Improving Environmental Performance in Marine Transportation, p. 125-168
Chapter in monograph, book
2016

Instantaneous Flow Structures and Opportunities for Larval Settlement: Barnacle Larvae Swim to Settle

Ann I. Larsson, Lena Granhag, Per R. Jonsson
PLoS ONE. Vol. 11 (7), p. e0158957-
Journal article
2016

Matching Forces Applied in Underwater Hull Cleaning with Adhesion Strength of Marine Organisms

Dinis Oliveira, Lena Granhag
Journal of Marine Science and Engineering. Vol. 4 (4), p. 66-
Journal article
2015

Autumnal bottom-up and top-down impacts of Cyanea capillata: a mesocosm study

Aino Hosia, Janne-Markus Rintala, Josefin Titelman et al
Journal of Plankton Research. Vol. 37 (5), p. 1042-1055
Journal article
2015

Baseline survey of non-indigenous species in the Baltic Sea ports -Testing and evaluating the HELCOM-OSPAR Port Survey Protocol

Monika Normat-Saremba, Henn Ojaveer, Maiju Lehtiniemi et al
Paper in proceedings
2012

Experimental feeding rates of gelatinous predators Aurelia aurita and Mnemiopsis leidyi at low northern Baltic Sea salinity

T. Katajisto, A. Hosia, Lena Granhag et al
Boreal Environment Research. Vol. 17 (6), p. 473-483
Journal article
2012

First recordings of the ctenophore Euplokamis sp. (Ctenophora, Cydippida) in Swedish coastal waters and molecular identification of this genus

Sanna Majaneva, Lene Friis Møller, Lena Granhag
Aquatic Invasions. Vol. 7 (4), p. 455-463
Journal article
2012

Stimulated bacterioplankton growth and selection for certain bacterial taxa in the vicinity of the ctenophore Mnemiopsis leidyi

Lasse Riemann, Lena Granhag, Julie Dinasquet
Frontiers in Microbiology. Vol. 3 (AUG), p. Art. no. 302-
Journal article
2012

Cascading effects of the ctenophore Mnemiopsis leidyi on the planktonic food web in a nutrient-limited estuarine system

Peter Tiselius, Matilda Haraldsson, Lena Granhag et al
Marine Ecology - Progress Series. Vol. 460, p. 49-61
Journal article
2012

Fouling-release of barnacles and algae from a ship hull

Lena Granhag
Paper in proceedings
2011

Size-specific clearance rates of the ctenophore Mnemiopsis leidyi based on in situ gut content analyses

Lene Friis Møller, Lena Granhag, Lars Johan Hansson
Journal of Plankton Research. Vol. 33 (7), p. 1043-1052
Journal article
2010

Fouling-release of barnacles from a boat hull with comparison to laboratory data of attachment strength

Linnea Mattsson-Thorngren, Ann I. Larsson, Mattias Berglin et al
Journal of Experimental Marine Biology and Ecology. Vol. 392 (1-2), p. 107-114
Journal article
2007

Algal spore settlement and sporling removal as a function of flow speed

Ann I. Larsson, Per R. Jonsson, Lena Granhag
Mar Ecol Prog Ser. Vol. 344, p. 63-69
Journal article
2006

Interactions between wave action and grazing control the distribution of intertidal macroalgae

Per Åberg, R. C. Thompson, Lena Granhag et al
Ecology. Vol. 87 (5), p. 1169-1178
Journal article
2005

Low-crested coastal defence structures as artificial habitats for marine life: Using ecological criteria in design

Andreas Sundelöf, Per Åberg, G. E. Dinesen et al
Coastal Engineering. Vol. 52 (10-11), p. 1053-1071
Journal article
2004

Roughness-dependent removal of settled spores of the green alga Ulva (syn. Enteromorpha) exposed to hydrodynamic forces from a water jet

Lena Granhag, J. A. Finlay, J. A. Callow et al
Biofouling. Vol. 20 (2), p. 117-122
Journal article