Published Data Library (PDL)

Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria at station L4, Western English Channel, 2007-2015

Title

Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria through the water column at time series station L4 in the Western English Channel, 2007-2015.

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 15th December 2015. The groups quantified are divided into phytoplankton and heterotrophs. Phytoplankton groups quantified are: Synechococcus sp. (cyanobacteria)(Syn), picoeuakryotes (smaller than 2 um) (Peuk), cryptophytes (Crypto), coccolithophores (Cocco), small dinoflagellates (<20 um) (Dino), Phaeocystis sp. (Pcystis) and nanoeukaryotes (Neuk) not already mentioned (2-20 um). 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. This was standardised to 10 m in subsequent years to coincide with plankton community composition analysis by microscopy. From 2013, 'Pnitz' data were recorded; possibly the chain-forming diatom Pseudo-nitzschia delicatissima. It was also present from 2011 when sample analysis moved from the BD FACSort to the BD Accuri C6 flow cytometer at PML (data still to be supplied). Discrimination was due to better measurement of forward light scatter with the BD Accuri C6.

Temporal coverage 23 April 2007 - 15 December 2015
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 December 2016
Digital Object Identifier (DOI) doi:10.5285/27670ec3-27a0-66e8-e053-6c86abc08dbd
Short DOI doi:10/bv6k
Supersedes This dataset supersedes that published at
Citation text Tarran G.A. (2016). Abundance of phytoplankton, heterotrophic nanoflagellates and bacteria through the water column at time series station L4 in the Western English Channel, 2007-2015. British Oceanographic Data Centre - Natural Environment Research Council, UK. doi:10/bv6k.

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