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Instrument: Folsom Plankton Splitter

Acronym: Folsom Splitter

External Identifier: skos:closeMatch: http://vocab.nerc.ac.uk/collection/L22/current/TOOL1961/

Description

A device for sub-sampling of plankton and ichthyoplankton samples by splitting, developed by Dr. Folsom of the Scripps Institute of Oceanography. Ideally suited for splitting plankton samples with minimal debris. A measured volume of plankton sample is placed in the undivided section of the drum. This is rotated 120 degrees to divide the stirred sample with a separating blade. Standard Methods suggests splitting until a subsample of 200-500 individuals is obtained.

Datasets (13)

Dataset Name	PI-Supplied Description	PI-Supplied Name
Size fractionated mesozooplankton biomass, elemental and stable isotope measurements derived from plankton net tows conducted on R/V Roger Revelle cruise RR2201 (BLOOFINZ-IO) in the Argo Basin region off NW Australia during January-March 2022	Net tow contents were anesthetized with ice-cold carbonated water and split with a Folsom splitter.	Folsom splitter
BONGO net tow zooplankton abundance estimates from R/V New Horizon cruise NH1008 in Monterey Bay, near MBARI buoy M1 (36.747?N, 122.022?W); 2010 (GATEKEEPERS project)	Samples were split multiple times using a Folsom splitter.	Folsom Splitter
Copepod species abundances from MOCNESS tows from R/V Thomas G. Thompson and R/V Malcolm Baldridge cruises in the Arabian Sea from 1994-1995 (Arabian Sea project, Arabian Sea Diapausing Copepods project)		Folsom Splitter
Zooplankton community abundances from meter net tows on multiple cruises on RV/Savannah in the South Atlantic Bight, Mid-Continental Shelf from 2015-2017	Used to split plankton samples into equivalent subsamples.
Mesozooplankton community biomass (wet and dry weight) for total and 5 size classes using samples collected by net tows during cruises at Station ALOHA from February 1994 (HOT-52) to September 2022 (HOT-339).	As soon as possible after collection, the sample is split using a Folsom plankton splitter with subsamples taken for preservation and size-fractionationed biomass.	Folsom plankton splitter
Mesozooplankton wet, dry, carbon and nitrogen biomass and isotope data collected in the oceanic Gulf of Mexico on R/V Nancy Foster cruises NF1704 and NF1802 in May 2017 and May 2018	Net tow contents were anesthetized with ice-cold carbonated water and split with a Folsom splitter.	Folsom splitter
Mesozooplankton grazing rates from samples collected in the oceanic Gulf of Mexico on R/V Nancy Foster cruises NF1704 and NF1802 in May 2017 and May 2018	Net tow contents were anesthetized with ice-cold carbonated water and split with a Folsom splitter.	Folsom splitter
MOCNESS tow zooplankton abundance estimates from R/V New Horizon cruise NH1008 in Monterey Bay, near MBARI buoy M1 (36.747?N, 122.022?W); 2010 (GATEKEEPERS project)	Samples were split multiple times using a Folsom splitter.	Folsom Splitter
Molecular identification of genetic variants of Neocalanus flemingeri in the Gulf of Alaska from samples collected from 2015 to 2023
Plankton size spectra compiled from projects CCE LTER, HOT, CRD FluZIE, BLOOFINZ-GoM, and SalpPOOP in the California Current Ecosystem, North Pacific subtropical gyre, Costa Rica Dome, Gulf of Mexico, and Southern Ocean subtropical front from 2004-2018		Folsom splitter
Sample metadata for MOCNESS tows conducted on R/V Kilo Moana cruise KM1910 at Station ALOHA during June 2019	Bulk plankton from each net and tow were quantitatively split using a Folsom plankton splitter, with additional processing or preservation for several analyses.	Folsom Plankton Splitter
Data from: Iacchei, M., E. Butcher, E. Portner, Goetze, E. (in press) It’s about time: Insights into temporal genetic patterns in oceanic zooplankton from biodiversity indices.	Following net retrieval, bulk plankton were quantitatively split using a Folsom plankton splitter.	Folsom Plankton Splitter
Zooplankton abundance and size data from Bongo plankton net tows conducted in the subtropical Southern California Bight during February and April 2021	The 202 µm samples were size fractioned into two replicate small (202 - 999 µm), one large (1000 - 4999 µm) and one extra large (> 5000 µm) size fractions, split into appropriately sized subsamples using a Folsom splitter, and analyzed by ZooScan	Folsom splitter