HIPPO environmental monitoring: Impact of phytoplankton dynamics on water column chemistry and the sclerochronology of the king scallop (Pecten maximus) as a biogenic archive for past primary production reconstructions

Date 2023
Temporal extent 2021-03-16 -2021-10-14
Author(s) Siebert ValentinORCID1, Moriceau BrivaëlaORCID1, Fröhlich LukasORCID2, Schöne Bernd R.ORCID2, Amice Erwan1, Beker Beatriz3, Bihannic Kevin1, Bihannic Isabelle1, Devesa Jérémy1, Gallinari Morgane1, Germain Yoan4, Grossteffan Émilie3, Jochum Klaus-PeterORCID5, Lebec Thierry3, Le Goff Manon1, Leynaert AudeORCID, Liorzou Céline6, Marec Claudie3, Picheral MarcORCID7, Rimmelin-Maury Peggy3, Rouget Marie-Laure3, Waeles Matthieu1, Thébault JulienORCID1
Affiliation(s) 1 : Univ Brest, CNRS, IRD, Ifremer, LEMAR, F-29280 Plouzané, France
2 : Institute of Geosciences, University of Mainz, Johann-Joachim-Becher-Weg 21, 55128 Mainz, Germany
3 : Institut Universitaire Européen de la Mer, IUEM, UAR 3113, Université de Bretagne Occidentale, CNRS, IRD , PLouzané, France
4 : Department of Marine Geoscience, Institut Français de Recherche pour l’Exploitation de la Mer, Centre de Brest, 29280 Plouzané, France
5 : Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
6 : Université de Bretagne Occidentale, Laboratoire Geo-Ocean, CNRS-UBO-Ifremer-UBS, IUEM, Plouzané, France
7 : Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire d’Océanographie de Villefranche (LOV), Villefranche-sur-Mer, France
DOI 10.17882/92043
Publisher SEANOE
Keyword(s) environmental monitoring, phytoplankton dynamics, Pecten maximus, sclerochronology, trace elements, water column chemistry, bay of brest
Abstract

Given the importance of phytoplankton for marine ecosystems (oxygen production, carbon sequestration, base of food webs, etc.), many studies focus on the reconstruction of its past temporal dynamics. Over the last decades, important changes of these dynamics have been observed, both in the phenology of the blooms and in the composition of microalgal communities. However, currently available data do not allow to go back far enough in time to quantify the actual impact of anthropogenic activities on these changes. However, the structural and/or chemical studies of the shell of the king scallop, Pecten maximus, hold the potential to cover this lack of data and provide informations about the environment they experienced.

In order to better understand the processes which drive the incorporation of chemical elements into scallop shells and their links with phytoplankton dynamics, an environmental monitoring was conducted at Lanvéoc (Bay of Brest; France; 48°17'39"N - 04°27'12"W) between March and October 2021. During this survey, water samples from surface and bottom layers were collected in a bi-weekly or a weekly basis in order to analyse various environmental parameters (nutrients, phytoplankton dynamics, trace element concentration in the particulate and dissolved fraction, particulate organic carbone and nitrogen, chlorophyll, pheophytin, biogenic silicon, etc.). A sediment trap has also been used to better understand the chemical dynamics of the sedimenting matter. Simultaneously, several instruments, such as an Underwater Vision Profiler (UVP6) and sambat probes, were deployed at Lanvéoc throughout the year and continuously recorded additional parameters (particle concentration, temperature, salinity, pH, dissolved oxygen, etc.). Furthermore, scallops which experienced one winter season (age-class I) were deposited at the beginning of the survey both in direct contact with the substract and in a cage, located 1 m above it. At the end of the monitoring, these scallops were recovered and their growth rates as well as the chemical composition of their calcitic stuctures were measured in a daily basis.

In addition to the objectives of the HIPPO project, the dataset that is available here can potentially be very useful for other scientists performing sclerochronological investigations, studying biogeochemical cycles or conducting various ecological research projects.

Licence CC-BY
Data
File Size Format Processing Access
Environmental parameters 5 KB CSV Processed data Open access
Particle concentration 1 MB CSV Processed data Open access
Sambat probe data 1 MB CSV Processed data Open access
Sediment trap data 69 KB CSV Processed data Open access
Shell growth rates 22 KB CSV Processed data Open access
Trace elements_shell A_cage 22 KB CSV Processed data Open access
Trace elements_shell B_cage 10 KB CSV Processed data Open access
Trace elements_shell C_cage 11 KB CSV Processed data Open access
Trace elements_shell D_sediment 11 KB CSV Processed data Open access
Trace elements_shell E_sediment 22 KB CSV Processed data Open access
Trace elements_shell F_sediment 16 KB CSV Processed data Open access
Trace elements water column 44 KB CSV Processed data Open access
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How to cite 

Siebert Valentin, Moriceau Brivaëla, Fröhlich Lukas, Schöne Bernd R., Amice Erwan, Beker Beatriz, Bihannic Kevin, Bihannic Isabelle, Devesa Jérémy, Gallinari Morgane, Germain Yoan, Grossteffan Émilie, Jochum Klaus-Peter, Lebec Thierry, Le Goff Manon, Leynaert Aude, Liorzou Céline, Marec Claudie, Picheral Marc, Rimmelin-Maury Peggy, Rouget Marie-Laure, Waeles Matthieu, Thébault Julien (2023). HIPPO environmental monitoring: Impact of phytoplankton dynamics on water column chemistry and the sclerochronology of the king scallop (Pecten maximus) as a biogenic archive for past primary production reconstructions. SEANOE. https://doi.org/10.17882/92043