Abstract:
Mesozooplankton were collected with a motion-compensated Bongo net (61 cm mouth diameter, 100 and 200 micrometre meshes) and a mini- Bongo net (18 cm mouth diameter, 50 micrometre mesh nets). Both nets fished to a maximum depth of 400 m but sometimes shallower. Specimens were categorised to the lowest possible taxonomic level, which in some cases encompassed developmental stages but in other cases was limited to higher order taxa. Each taxa was enumerated to determine abundance in units of individuals m-2. The dataset allows examination of the distribution and abundance of these species within the Atlantic sector of the Southern Ocean over a number of years and covering much of the productive season from spring to autumn. The data for the North Atlantic and Arctic covers one season only (summer) and is limited to providing a spatial perspective on the distribution and abundance of mesozooplankton.
Keywords:
Amphipods, Chaetognaths, Copepods, Euphausiids, Polychaetes
Ward, P., Tarling, G., Shreeve, R., & ten Hoopen, P. (2020). Epipelagic mesozooplankton distribution and abundance in Southern Ocean Atlantic sector and the North Atlantic and Arctic 1996-2013 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/5a711904-ef42-46a3-9f47-3f0d6b231f65
| Access Constraints: | There are no restrictions in accessing the data. |
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| Use Constraints: | Dataset is released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2020-03-12 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Peter Ward |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Geraint Tarling |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Rachael Shreeve |
| Role(s) | Investigator |
| Name | Dr Petra ten Hoopen |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Ward P., Tarling G.A. and ten Hoopen P. (2022) A database of zooplankton abundance in the Atlantic sectors of the Southern and sub-Arctic Oceans. Patterns 3 (10):100554. https://doi.org/10.1016/j.patter.2022.100554. Ten Hoopen P., Peat H.J., Ward P. and Tarling G.A. (2022) Polar biodiversity data: From a national marine platform to a global data portal. Patterns 3 (10):100566. https://doi.org/10.1016/j.patter.2022.100566. Ward P, Tarling GA, Thorpe S (2018) Temporal changes in abundances of large calanoid copepods in the Scotia Sea: comparing the 1930s with contemporary times. Polar Biol 41:2297-2310 doi:10.1007/s00300-018-2369-3. Tarling GA, Ward P, Thorpe SE (2018) Spatial distributions of Southern Ocean mesozooplankton have been resilient to long-term surface warming. Global Change Biol. 24:132-142 doi: 10.1111/gcb.13834. Tarling GA, Peck V, Ward P, Ensor NS, Achterberg E, Tynan E, Poulton AJ, Mitchell E, Zubkov MV (2016) Effects of acute ocean acidification on spatially-diverse polar pelagic foodwebs: insights from on-deck microcosms. Deep-Sea Research II. 127: 75-92. doi: 10.1016/j.dsr2.2016.02.008. Saunders RA, Collins MA, Ward P, Stowasser G, Hill SL, Shreeve R, Tarling GA (2015) Predatory impact of the myctophid fish community on zooplankton in the Scotia Sea (Southern Ocean). Mar. Ecol. Prog. Ser. 541:45-64 doi: 10.3354/meps11527. Ward P, Tarling GA, Thorpe SE (2014) Mesozooplankton in the Southern Ocean: spatial and temporal patterns from Discovery Investigations Progress in Oceangraphy 120:305-319. doi: 10.1016/j.pocean.2013.10.011. Ward P, Tarling GA, Coombs S, Enderlein P (2012) Comparing Bongo net and N70 mesozooplankton catches: using a reconstruction of an original net to quantify historical plankton catch data. Polar Biol. 35:1179-1186. doi: 10.1007/s00300-012-1163-x. Ward P, Atkinson A, Tarling GA (2012) Mesozooplankton community structure and variability in the Scotia Sea: a seasonal comparison. Deep-Sea Research II 59-60:78-92. doi:10.1016/j.dsr2.2011.07.004. Tarling GA, Stowasser G, Ward P, Poulton AJ, Zhou M, Venables HJ, McGill RAR, Murphy EJ (2012) Seasonal trophic structure of the Scotia Sea pelagic ecosystem considered through biomass spectra and stable isotope analysis. Deep-Sea Research II 59-60: 222-236. doi: 10.1016/j.dsr2.2011.07.002. |
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| Quality: | All species were identified according to the taxonomic guides available at time of analysis and the user must be aware that some species names may have since been updated. The value 0 represents an instance where the taxon was actively looked for but no specimens were present in the sample. |
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| Lineage: | Data were gathered on a series of oceanographic cruises aboard the RRS James Clark Ross during expeditions to the Atlantic Sector of the Southern Ocean and the North Atlantic/Arctic. Samples were retrieved by either a motion compensation Bongo net or a mini Bongo net, and then preserved with Borax buffered 10% formalin for analysis back at the home laboratory. Taxa were identified through examination by light microscopy. The abundance of each taxa within a sample was determined through examining a known fraction of the sample and then making an inverse multiplication of that fraction. Known fractions were principally achieved through the use of a Folsom splitter. Volumetric abundances (individuals m-2) were determined through dividing sample abundance by the volume of water sampled by the respective net. Net volume was mainly derived through multiplying the net opening diameter by the maximum depth of sampling. This calculation assumes 100% net sampling efficiency and that specimens were only captured during the ascent phase of the net deployment. | |
| Temporal Coverage: | |
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| Start Date | 2006-11-06 |
| End Date | 2013-02-04 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | 56.3 |
| Northernmost | 79.1 |
| Longitude | |
| Westernmost | -24.1 |
| Easternmost | 25.9 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Latitude | |
| Southernmost | -65 |
| Northernmost | -47.9 |
| Longitude | |
| Westernmost | -69.3 |
| Easternmost | -25.8 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | Atlantic Sector |
| Location | North Atlantic Ocean |
| Detailed Location | Arctic |
| Data Collection: | 1. A motion compensated Bongo net (61 cm mouth diameter, 100 and 200um meshes) 2. Mini Bongo (18 cm mouth diameter, 50um meshes) 3. Folsom splitter 4. Binocular microscope |
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