Dataset: Abundances of copepod species in each net from MOCNESS tows in the Eastern Tropical North Pacific collected on four research cruises from 2007-2017

Final no updates expectedDOI: 10.26008/1912/bco-dmo.855395.1Version 1 (2021-07-09)Dataset Type:Cruise Results

Principal Investigator, Contact: Karen Wishner (University of Rhode Island)

Co-Principal Investigator: Christopher Neil Roman (University of Rhode Island)

Co-Principal Investigator: Brad Seibel (University of South Florida)

Technician: Dawn Outram (University of Rhode Island)

BCO-DMO Data Manager: Shannon Rauch (Woods Hole Oceanographic Institution)


Program: Ocean Carbon and Biogeochemistry (OCB)

Project: Collaborative Research: Zooplankton in the Redoxcline of the Cariaco Basin: Impact on Biogeochemical Cycling (ETP)

Project: Collaborative Research: A metabolic index to predict the consequences of climate change for midwater ecosystems (Metabolic Index)


Abstract

This dataset includes abundances of copepod species in each net from MOCNESS tows in the Eastern Tropical North Pacific collected on four research cruises (KN195-02, OC1604B, SJ07, and SKQ201701S) from 2007-2017. Data are from vertically-stratified MOCNESS tows (8 or 9 nets per tow) through and within the Oxygen Minimum Zone (OMZ). Tows sampled various depth ranges between 1200 m to the surface and included paired day and night tows for many strata. Abundances for each species were calculated fo...

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Data are from vertically-stratified MOCNESS tows (8 or 9 nets per tow) through and within the Oxygen Minimum Zone (OMZ). Tows sampled various depth ranges between 1200 m to the surface and included paired day and night tows for many strata. Sampling intervals ranged from 100 or 200 m thick in standardized tows from 1000 m depth, and from 25, 50, or 150 m thick in fine-scale tows covering narrower depth intervals. Zooplankton collection occurred on the upcast portion of a tow. Several horizontally-sequenced tows were also done at specific mesopelagic depths within the OMZ. Large water volumes were filtered for most deeper and OMZ nets where abundances were low. MOCNESS sensors including a flowmeter provided environmental data. Tows were done over the course of a decade (2007 - 2017) during 4 cruises. See published papers below for details of tows and sampling schemes.

Net mesh size was 153 µm or 222 µm. Upon retrieval, samples or splits were stored in 4% sodium borate-buffered formaldehyde seawater. Sorting and identifications of whole samples or splits occurred later onshore by a trained technician using stereo- and compound microscopes. The copepod species shown in this dataset were selected to highlight different types of distributional responses to OMZ variability and are the basis for the Wishner et al. (2020) paper (Table S1 in that paper).


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Dataset: Zooplankton metabolic traits
Seibel, B., Roman, C., Wishner, K. (2021) Respirometry data for pelagic crustaceans, cephalopods, and fish collected on R/V Sikuliaq cruise SKQ201701S from January to February 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-07-22 doi:10.26008/1912/bco-dmo.855732.1
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Dataset: SKQ201701S Event Log
Wishner, K., Roman, C., Seibel, B. (2021) Event log from R/V Sikuliaq SKQ201701S from January to February 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-01-10 doi:10.26008/1912/bco-dmo.755088.1
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Dataset: MOCNESS Event Logs Metabolic Index
Wishner, K., Seibel, B. (2020) Date, time, location, and depth range for MOCNESS tows from R/V Oceanus in the Eastern Tropical Pacific, Tropical Eastern Pacific from 2016-04-17 to 2016-05-02. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-01-30 doi:10.1575/1912/bco-dmo.787329.1
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Dataset: MOCNESS Event Logs ETP
Wishner, K., Seibel, B. (2020) Date, time, location, and depth range for MOCNESS tows from the R/V Seward Johnson, R/V Knorr in the Eastern Tropical North Pacific from 2007-10-25 to 2009-01-01. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-01-30 doi:10.1575/1912/bco-dmo.786098.1

Related Publications

Results

Wishner, K. F., Seibel, B., & Outram, D. (2020). Ocean deoxygenation and copepods: coping with oxygen minimum zone variability. Biogeosciences, 17(8), 2315–2339. doi:10.5194/bg-17-2315-2020
Methods

Davis, C. V., Wishner, K., Renema, W., & Hull, P. M. (2021). Vertical distribution of planktic foraminifera through an oxygen minimum zone: how assemblages and test morphology reflect oxygen concentrations. Biogeosciences, 18(3), 977–992. doi:10.5194/bg-18-977-2021
Methods

Maas, A. E., Frazar, S. L., Outram, D. M., Seibel, B. A., & Wishner, K. F. (2014). Fine-scale vertical distribution of macroplankton and micronekton in the Eastern Tropical North Pacific in association with an oxygen minimum zone. Journal of Plankton Research, 36(6), 1557–1575. doi:10.1093/plankt/fbu077
Methods

Williams, R. L., Wakeham, S., McKinney, R., & Wishner, K. F. (2014). Trophic ecology and vertical patterns of carbon and nitrogen stable isotopes in zooplankton from oxygen minimum zone regions. Deep Sea Research Part I: Oceanographic Research Papers, 90, 36–47. doi:10.1016/j.dsr.2014.04.008
Methods

Wishner, K. F., Outram, D. M., Seibel, B. A., Daly, K. L., & Williams, R. L. (2013). Zooplankton in the eastern tropical north Pacific: Boundary effects of oxygen minimum zone expansion. Deep Sea Research Part I: Oceanographic Research Papers, 79, 122–140. doi:10.1016/j.dsr.2013.05.012