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Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria at station L4, Western English Channel, 2007-2016

Title

Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria through the water column at time series station L4 in the Western English Channel, 2007-2016.

Author(s) Tarran G.A. (1)

(1) Plymouth Marine Laboratory

Subject biota, oceans
Abstract

This dataset contains depth profiles of the mean abundance of groups of plankton as cells per millilitre, measured using flow cytometry from the long-term sampling station, L4 (50 15.0'N; 4 13.0'W) situated off the south-west coast of England, United Kingdom. The data were collected between 23rd April 2007 and 19th December 2016. The groups quantified are divided into phytoplankton and heterotrophs. Phytoplankton groups quantified are: Synechococcus sp. (cyanobacteria)(Syn), picoeuakryotes (smaller than 2 µm) (Peuk), cryptophytes (Crypto), coccolithophores (Cocco), small dinoflagellates (<20 µm) (Dino), Phaeocystis sp. (Pcystis) and nanoeukaryotes (Neuk) not already mentioned (2-20 µm). Heterotrophs quantified are: heterotrophic nanoflagellates (HNAN), bacteria with relatively high nucleic acid content (HNA) and bacteria with relatively low DNA (LNA). Samples were collected and analysed in duplicate (HNAN and some heterotrophic bacteria) or triplicate (phytoplankton and some heterotrophic bacteria) from 2 m, 10 m, 25 m and 50 m depth. In 2007 the Secchi depth was sampled instead of the 10 m depth. NOTE: In 2013 an extra column appears in the abundance section and in the standard deviation section. The columns are labelled 'Pnitz'; possibly the chain-forming diatom Pseudo-nitzschia delicatissima. It is also present in 2011 and 2012 where the samples were run using the newest flow cytometer at PML – data still to be supplied. Discrimination is down to better measurement of forward light scatter with the new flow cytometer (a BD Accuri C6).

Temporal coverage 23 April 2007 - 19 December 2016
Spatial coverage English Channel
File format Delimited
Language English
Discovery metadata record Link to the related European Directory of Marine Environmental Data (EDMED) record
Publisher British Oceanographic Data Centre - Natural Environment Research Council, UK
Publication date 12 January 2018
Digital Object Identifier (DOI) doi:10.5285/6293f443-2670-59be-e053-6c86abc05dea
Short DOI doi:10/ch74
Supersedes This dataset supersedes that published at
Superseded This dataset is superseded by that published at Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria at station L4, Western English Channel, 2007-2017 doi:10.5285/908f84ec-d20c-7c88-e053-6c86abc08fda
Citation text Tarran G.A.(2018). Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria through the water column at time series station L4 in the Western English Channel, 2007-2016. British Oceanographic Data Centre - Natural Environment Research Council, UK. doi:10/ch74.