This dataset consists of phyto- and zooplankton counts, chlorophyll concentration and fish catch data from the Cumbrian Lakes (Blelham Tarn, Esthwaite Water, Windermere north and south basins). The data span the years 1940 to 2013 but time series vary in length among different species and sites, and fish data are only available from Windermere. The original data were initially collected by the Freshwater Biological Association (FBA) but have been collected by CEH and its predecessor Institute of Freshwater Ecology (IFE) since 1989. Full details about this dataset can be found at https://doi.org/10.5285/1de49dab-c36e-4700-8b15-93a639ae4d55

This dataset contains quality-controlled georeferenced occurrence records of three Arctic Calanus species (Calanus finmarchicus, C. glacialis and C. hyperboreus), downloaded from the Ocean Biodiversity Information System (OBIS) and the Global Biodiversity Information Facility (GBIF) databases. Records span about 150 years of sampling (1870-2017), are located between 30 and 90 degrees north, and are distributed between the surface and 5000m deep. Physical (bathymetry) and environmental (temperature and sea-ice concentration) parameters are matched to each occurrence record. An html file provides the annotated source code for the data processing, analyses and figures produced for the publication: Freer JJ and Tarling GA (2023) Assessing key influences on the distribution and life-history of Arctic and boreal Calanus: Are online databases up to the challenge? Front. Mar. Sci. 10:908112. This work was funded by DIAPOD (NE/P006213/1) and CHASE (NE/R012687/1) projects as part of the Changing Arctic Ocean Programme, with the former funded by the UKRI Natural Environment Research Council (NERC) and the latter, jointly by NERC and the German Federal Ministry of Education and Research (BMBF). Further support was provided by BIOPOLE National Capability Multicentre Round 2 funding from the Natural Environment Research Council (NE/W004933/1).

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in April 2007 during the marine cruise JR167 and recovered in January 2008 by the marine cruise JR177.

Datasets from a deep sediment trap (3700m) mooring deployed in the Southern Ocean, north-west of South Georgia in April 2009 during the marine cruise JR200 and recovered in December 2009 by the marine cruise JR228.

Datasets from a deep sediment trap (3700m) mooring deployed in the Southern Ocean, north-west of South Georgia in May 2013 during the marine cruise JR287 and recovered in December 2013 by the marine cruise JR291.

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in April 2009 during the marine cruise JR200 and recovered in December 2009 by the marine cruise JR228.

Datasets from a deep sediment trap (3700m) mooring deployed in the Southern Ocean, north-west of South Georgia in December 2011 during the marine cruise JR260b and recovered in November 2012 by the marine cruise JR280.

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in December 2009 during the marine cruise JR228 and recovered in November 2011 by the marine cruise JR260a.

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in December 2013 during the marine cruise JR291 and recovered in November 2014 by the marine cruise JR304.

Datasets from a deep sediment trap (3200m) mooring deployed in the Southern Ocean, south-west of South Georgia in January 2008 during the marine cruise JR177 and recovered in November 2008 by the marine cruise JR187.