Phytoplankton monitoring at the Château du Taureau Station in the Western English Channel, from 2009 to 2011

https://ipt.data-terra.org/resource?r=tareau_phytoplankton Phytoplankton monitoring at the Château du Taureau Station in the Western English Channel, from 2009 to 2011 Thierry Comtet Station Biologique de Roscoff - CNRS / Sorbonne Université Researcher

thierry.comtet@sb-roscoff.fr Fanny Leroy Station Biologique de Roscoff - CNRS / Sorbonne Université PhD student

Thierry Comtet Station Biologique de Roscoff - CNRS / Sorbonne Université Researcher

thierry.comtet@sb-roscoff.fr Fabienne Rigaut-Jalabert Station Biologique de Roscoff - CNRS / Sorbonne Université Engineer

fabienne.jalabert@sb-roscoff.fr Fabienne Rigaut-Jalabert fabienne.jalabert@sb-roscoff.fr user 2025-07-10 eng The monitoring at the Château du Taureau station (north Brittany - France, Western English Channel) was designed to study the influence of trophic conditions on larval development of the invasive species Crepidula fornicata. From 2009 to 2011, phytoplankton communities were monitored twice a month in the frame of a research work on Crepidula fornicata larvae. :1/ Microphytoplankton - Species abundances (according to Utermöhl method microphytoplankton abundances - number of cells per liter) ; 2/ Microphytoplankton - Species occurrences (20µm net haul, occurrence code : "1" for present). Phytoplankton Biodiversity EnvThes - Environmental Thesaurus Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Samplingevent GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. http://marineregions.org/mrgid/56785 -3.88 -3.88 48.666 48.666 2009 2011 Phytoplankton identifications and quantifications are made under inverted light microscope (at maximum magnification x400). phylum Cryptophyta phylum Haptophyta phylum Myzozoa phylum Ochrophyta phylum Chlorophyta phylum Rhodophyta phylum Euglenophyta daily Thierry Comtet Station Biologique de Roscoff - CNRS / Sorbonne Université Researcher

thierry.comtet@sb-roscoff.fr Microphytoplankton - Species abundances Seawater samples are collected at 1m depth using a 5 liters Niskin bottle. 250 mL subsamples were fixed with acid Lugol's solution iodine according to Sournia (1978) back to the lab and stored in dark conditions at room temperature until analysis. For analysis, a sub-sample of lugol preserved water was gently poured into a 50 mL composite settling chamber (HYDRO-BIOS, Kiel), according to the standard Utermöhl settlement method described in Sournia (1978). Quantitative analyses based on the examination of lugol preserved samples were performed between 15 days and up to 1 year after sampling. Cell counts for either the whole chamber, or half a chamber, were obtained after sedimentation, under an inverted light microscope at 400x magnification. Abundance is expressed for each taxa in number of cells per liter. Reference citation to method - Sournia A. 1978. Phytoplankton manual. Monographs on Oceanographic Methodology, 6: 337. -Leroy F (2011) Influence des conditions trophiques sur le développement larvaire de l'espèce invasive Crepidula fornicata - Conséquences sur ses capacités de dispersion. Thèse de doctorat, Université Pierre et Marie Curie, Paris, 210 p. From 2009 to 2011, samples at Château du taureau Station have been collected twice a month in the frame of a research work on Crepidula fornicata larvae. Seawater samples are collected at 1m depth using a 5 liters Niskin bottle. 2025-07-10T12:53:29.637+00:00 dataset Comtet T, Leroy F (2018): Phytoplankton monitoring at the Château du Taureau Station in the Western English Channel, from 2009 to 2011. v1. Dataset/Samplingevent. http://ipt.sb-roscoff.fr/ipt/resource?r=taureau_phytoplankton&v=1.0 Leroy F (2011) Influence des conditions trophiques sur le développement larvaire de l'espèce invasive Crepidula fornicata - Conséquences sur ses capacités de dispersion. Thèse de doctorat, Université Pierre et Marie Curie, Paris, 210 p. https://ipt.sb-roscoff.fr/ipt/logo.do?r=taureau_phytoplankton