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  3. CLiP Vanuatu Microplastics in biota 2018

CLiP Vanuatu Microplastics in biota 2018

Summary

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from biota samples (tuna stomachs, land crabs and reef fish) collected around Efate Island (Vanuatu) in 2018 with indication of sample wet weight, species and other characteristics. The file also contains information on blank used. The other file contains the profile of a ATR-FT-IR spectrum analysis of a plastic piece found in a tuna stomach . A README text file contains the description of columns content for the two csv files. A .zip file contains a pictures of the plastic piece analysed with ATR-FT-IR.

Categories

Keywords

N/A

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Attribution statement

See Cefas Data Portal for details – link to dataset below.

Technical information

Update frequency

notPlanned

Lineage

The Commonwealth Litter Project (CLiP) supported Solomon Islands to take action on plastics entering the oceans. The assessment of microplastics in seawater was part of the action plan to define scientific baselines for future monitoring purposes and comparison. Samples were acquired in different ways: tuna stomachs were received from local game fishing; land crabs were bought from the main food market in Port Vila; reef fish (mix of species) was collected with gillnets from local fishermen around the island. In the lab specimens were taxonomically identified and their digestive tracts were removed and weighted. For large stomachs, visible particles >5mm were removed. Stomachs content was then rinsed and chemically digested by a 30 percent KOH:NaClO solution with an incubation period of 24 hours at 50 degrees centigrade. Small stomachs (and crab digestive traits) were digested whole with a 30 percent KOH:NaClO solution with an incubation period of 3 days at 50 degrees centigrade. All samples were then filtered, stained with Red Nile dye and a digital image was acquired through a microscope. Number of particles was counted and corrected for particles count in blank samples. Visible particles were analysed using ATR-FT-IR to identify particle composition, comparing their spectrum to a polymers library. ATR-FT-IR is the attenuated total reflection Fourier Transform infrared spectroscopy. A Thermo Fisher Scientific Nicolet iS5 ATR-FTIR with an OMNIC software (version 9.9.473) was used and polymers were identified based on the percentage match of IR spectra to a polymer library. Only spectra matched greater than 70 percent were accepted Spectra were collected in the range 4000 – 650 1/cm at a resolution of 4 1/cm.

Spatial information

Coordinate reference system

N/A

Geographic extent

  • Latitude from: -20 to -10
  • Longitude from: 160 to 170
Metadata information

Language

English

Metadata identifier

4c91df6c-a652-4fcd-b1a8-336c38734f37


Published by

Centre for Environment, Fisheries & Aquaculture Science

Contact publisher

data.manager@cefas.gov.uk

Dataset reference dates

Creation date

03 May 2019

Revision date

31 May 2023

Publication date

03 May 2019

Period

  • From: 23 November 2018
  • To: 13 December 2018

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Data and Supporting Information
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The Cefas Data Portal contains metadata records and data sets available to download and connect to in support of our commitment to open science. Data is available in the following formats: Binary download, CSV.Open link