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Pierre Raoul de Wit


Pierre Raoul de Wit
+46 31 786 9550

Postal Address: Lovéncentret Tjärnö, 45296 Strömstad
Visiting Address: Tjärnö , 45296 Strömstad

Department of Marine Sciences (More Information)
Box 461
405 30 Göteborg
Visiting Address: Carl Skottsbergs gata 22 B , 413 19 Göteborg

About Pierre Raoul de Wit

 I am interested in the study of evolution at all levels, from adaptations to local environments and population genetics to how species form and to try to elucidate the history of life on earth, as well as to make predictions for the future.

I work with genetic methods to study differences in DNA sequences between populations and species of marine organisms. The goal of my current work is to find out how marine animals are affected genetically when they are exposed to environmental changes such as ocean acidification or changes in salinity, which will hopefully allow us to identify genotypes tolerant to the predicted environtment. In order to do this, we can use new DNA sequencing technologies to scan their genomes for differences that confer tolerance to environmental change. I am currently working with several projects:

• Baltic Sea Marine Biodiversity (BAMBI), a large collaborative project investigating the effect of future environmental changes on the Baltic Sea ecosystem. My focus is on population genomics of Baltic Sea isopods.

• Effects of ocean acidification on Japanese Cupped Oysters (Crassostrea gigas). This is a collaborative project with researchers at Oregon State University and Hatfield Marine Science Center. Oyster larvae have been found to be very sensitive to pH changes - we aim at identifying tolerant strains (genotypes) that can help the aquaculture industry survive in the future environment.

• Effects of ocean acidification on copepods. Copepods form the base of the marine pelagic food web, yet very little is known about the effects of pH change on these small animals. We are using a combination of physiological and gene expression data over multiple generations to study their potential to adapt.

Previous projects that I have been involved in include studies of genetic variation in natural populations of abalone along the California coast, including the effects of algal bloom-induced mass mortality events, and also bioinformatic work, both construction of data analysis pipelines for large data sets, and for data mining of public databases. My PhD thesis dealt with phylogeny reconstruction and cryptic speciation patterns in marine clitellate worms (Annelida). I am also currently involved in several collaborative efforts continuing both of these lines of research.


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Latest publications

Established and emerging techniques for characterising the formation, structure and performance of calcified structures under ocean acidification
Susan Fitzer, Vera Chan, Yuan Meng, Kanmani Chandra Rajan, Michio Suzuki et al.
Oceanography and Marine Biology: An Annual Review 57, Boca Raton, FL, USA, CRC Press, Chapter in book 2019
Chapter in book

Divergence and plasticity shape adaptive potential of the Pacific oyster
L. Li, A. Li, K. Song, J. Meng, X. M. Guo et al.
Nature Ecology & Evolution, Journal article 2018
Journal article

Acquisition of a Novel Sulfur-Oxidizing Symbiont in the Gutless Marine Worm Inanidrilus exumae
Claudia Bergin, Cecilia Wentrup, Nancy Brewig, Anna Blazejak, Christer Erséus et al.
Applied and Environmental Microbiology, Journal article 2018
Journal article

Micromorphology of ovaries and oogenesis in Grania postclitellochaeta (Clitellata: Enchytraeidae)
Piotr Świątek, Pierre De Wit, Natalia Jarosz, Łukasz Chajec, Anna Urbisz
Zoology, Journal article 2018
Journal article

Contrasting physiological responses to future ocean acidification among Arctic copepod populations
Peter Thor, Allison Bailey, Samuel Dupont, Piero Calosi, Janne Söreide et al.
Global Change Biology, Journal article 2018
Journal article

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Showing 31 - 39 of 39



Molecular evidence indicates that morphological characters are unsuitable to infer phylogeny of Grania
Pierre De Wit, E. Rota, Christer Erséus
Abstracts, 11th International Symposium on Aquatic Oligochaeta, Alanya, Turkey, 5-12 October 2009, Conference paper 2009
Conference paper


Genetic Variation in Swedish Marine Clitellates
Pierre De Wit, Sebastian Kvist
Poster presented at Systematikdagarna 2008, Uppsala, Sweden 24-25 November 2008, Poster 2008



A preliminary molecular phylogeny of the enchytraeid genus Grania
Pierre De Wit, Christer Erséus
Poster presented at The 10th International symposium on Aquatic Oligochaeta, Wuhan, China 16-21 October 2006., Poster 2006

Grania maricola
Pierre De Wit
Fauna & Flora, Magazine article 2006
Magazine article

A preliminary molecular phylogeny of Grania (Enchytraeidae)
Pierre De Wit
Poster presented at Systematikdagarna 2006, Göteborg, Sweden 27-28 November 2006, Poster 2006

Seven new species of Grania (Annelida: Clitellata: Enchytraeidae) from New Caledonia, South Pacific Ocean
Pierre De Wit, Christer Erséus
The Marine Biological Association - Third Annual Postgraduate Workshop Dublin, Ireland 3-5 maj, Poster 2006

Showing 31 - 39 of 39

Page Manager: Bo Johannesson|Last update: 7/1/2015

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