Identification

Title

2018 - 2018 Centre for Environment, Fisheries & Aquaculture Science (Cefas) CLiP Belize Microplastics in biota 2019

Abstract

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from biota samples (queen conch, Lobatus gigas) collected in Belize in 2018 (and analysed in 2019) with indication of sample wet weight and blank used. The other file contains the profiles of the ATR-FT-IR spectrum analysis of plastic pieces found in the conch stomachs. A README text file contains the legend of the columns of the two csv files. A .zip file contains pictures of two plastic pieces analysed with ATR-FT-IR.

Resource type

dataset

Resource locator

http://data.cefas.co.uk/#/View/20284/

function: order

Unique resource identifier

code

CEFAS63b7a2a5-dbbc-48d9-92ee-7df049101f78

codeSpace

http://www.cefas.co.uk/

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::4326

Classification of spatial data and services

Topic category

health

Keywords

Keyword set

keyword value

Keyword set

keyword value

originating controlled vocabulary

title

SeaDataNet P021 parameter discovery vocabulary

reference date

date type

revision

effective date

2011-03-25

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-90

East bounding longitude

-80

North bounding latitude

20

South bounding latitude

10

Extent

Extent group

authority code

title

SeaVoX Vertical Co-ordinate Coverages

reference date

date type

revision

effective date

2010-05-18

code identifying the extent

Temporal reference

Temporal extent

Begin position

2018-12-03T00:00:00.000Z

End position

2018-12-05T00:00:00.000Z

Dataset reference date

date type

publication

effective date

2020-09-09

Frequency of update

notPlanned

Quality and validity

Lineage

The Commonwealth Litter Project (CLiP) supported Belize to take action on plastics entering the oceans. The assessment of microplastics in biota was part of the action plan to define scientific baselines for future monitoring purposes and comparison. Samples were acquired targeting the queen conch Lobatus gigas from Fishing Areas 1 and 2 (fished in Dec 2018), as defined by the Fisheries Department. Specimens were sourced as part of the Commonwealth Marine Economies (CME) programme. In the lab, stomachs were removed, rinsed and chemically digested by a 30 percent KOH:NaClO solution with an incubation period of 3 days 24 hours at 40 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 polymer 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.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Constraint set

Limitations on public access

Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply

Responsible organisations

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

originator

Responsible party

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

Data Manager

organisation name

Centre for Environment, Fisheries & Aquaculture Science

full postal address

Cefas Lowestoft Laboratory

Pakefield Road

Lowestoft

NR33 0HT

UK

telephone number

+44 (0)1502 562244

email address

data.manager@cefas.co.uk

responsible party role

pointOfContact

Metadata date

2020-09-09T11:59:13

Metadata language

eng