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Microplastic concentrations in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06 (NCEI Accession 0289931)

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This study estimated the concentration of microplastics (i.e. plastics measuring less than 5mm; reported in unit of counts of microplastics/individual fish) in the gastrointestinal tracts of three fish species; Sardinella maderensis (Madeiran sardine), Sardinella aurita (round sardine) and Dentex angolensis (Angolan Dentex) from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06. The fishes were caught with purse seine net. 155 fish specimens were obtained from 50 fishing boats at the Tema Fishing Harbor using a random sampling approach, where samples were taken from the first and fifth boats for every five boat landings. Total body length (cm) and body weight (g) were measured for each fish prior to dissection. This dataset contains the results of individual microplastic types from all 77 S. maderensis, 50 S. aurita and 28 D. angolensis samples, in a spreadsheet format.

Dataset Citation

Cite as: Adika, Stella Aseye; Mahu, Edem; Crane, Richard; Marchant, Rob; Montford, Judith; Folorunsho, Regina; Gordon, Christopher (2024). Microplastic concentrations in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06 (NCEI Accession 0289931). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0289931. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0289931

Full Text · XML

Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	Excel
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	2019-04-06 to 2019-04-06
Spatial Bounding Box Coordinates	West: -.016711 East: -.016711 South: 5.606 North: 5.606
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
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Descriptive Information
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Associated Resources

The NOAA NCEI Global Marine Microplastics Database (1972-present)
- NCEI Collection
  Navigate directly to the URL for data access and direct download.
Adika, S. A., Mahu, E., Crane, R., Marchant, R., Montford, J., Folorunsho, R., & Gordon, C. (2020). Microplastic ingestion by pelagic and demersal fish species from the Eastern Central Atlantic Ocean, off the Coast of Ghana. Marine Pollution Bulletin, 153, 110998. https://doi.org/10.1016/j.marpolbul.2020.110998
- https://doi.org/10.1016/j.marpolbul.2020.110998
  related journal article

gov.noaa.nodc:NCEI-Marine-Microplastics

Publication Dates	publication: 2024-03-08 revision: 2024-05-13
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Supplemental Information	Submission Package ID: 4M115G. In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
Purpose	These microplastic concentration data were collected in order to determine their abundance in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana during 2019-04-06
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Adika, Stella Aseye; Mahu, Edem; Crane, Richard; Marchant, Rob; Montford, Judith; Folorunsho, Regina; Gordon, Christopher (2024). Microplastic concentrations in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06 (NCEI Accession 0289931). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0289931. Accessed [date].
Cited Authors	Adika, Stella Aseye University of Ghana Mahu, Edem University of Ghana Crane, Richard University of Exeter Marchant, Rob University of York Montford, Judith Scottish Environmental Protection Agency Folorunsho, Regina Nigerian Institute of Oceanography and Marine Research Gordon, Christopher University of Ghana
Contributors	University of Ghana (UG)
Resource Providers	Edem Mahu University of Ghana (UG) University of Ghana (UG)
Points of Contact	Ebenezer Nyadjro Mississippi State University (MSU)
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Related Funding Agency: United Kingdom Global Challenges Research Fund (GCRF) - grant # GCRFNGR2/10334

Theme keywords	NODC DATA TYPES THESAURUS biological data microplastic concentration SPECIES IDENTIFICATION SPECIES IDENTIFICATION - WET WEIGHT NODC OBSERVATION TYPES THESAURUS in situ laboratory analyses WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > OCEANS > WATER QUALITY > SEA SURFACE CONTAMINANTS > MICROPLASTIC CONCENTRATION
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS University of Ghana NODC SUBMITTING INSTITUTION NAMES THESAURUS University of Ghana
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS microscope Global Change Master Directory (GCMD) Instrument Keywords MICROSCOPES > MICROSCOPES Provider Instruments Purse seine net
Place keywords	NODC SEA AREA NAMES THESAURUS Gulf of Guinea Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Keywords	NCEI ACCESSION NUMBER 0289931

Use Constraints	Cite as: Adika, Stella Aseye; Mahu, Edem; Crane, Richard; Marchant, Rob; Montford, Judith; Folorunsho, Regina; Gordon, Christopher (2024). Microplastic concentrations in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06 (NCEI Accession 0289931). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0289931. Accessed [date].
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2024-03-08T06:11:26Z - NCEI Accession 0289931 v1.1 was published. 2024-05-13T17:05:18Z - NCEI Accession 0289931 was revised and v2.2 was published. Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets	NCEI Accession 0289931 v1.1 NCEI Accession 0289931 v1.1 (download) published 2024-03-08T06:11:26Z NCEI Accession 0289931 v2.2 NCEI Accession 0289931 v2.2 (download) published 2024-05-13T17:05:18Z

Lineage information for: dataset

Processing Steps

2024-03-08T06:11:26Z - NCEI Accession 0289931 v1.1 was published.
2024-05-13T17:05:18Z - NCEI Accession 0289931 was revised and v2.2 was published.
Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.

Output Datasets

NCEI Accession 0289931 v1.1
- NCEI Accession 0289931 v1.1 (download)
  published 2024-03-08T06:11:26Z

NCEI Accession 0289931 v2.2
- NCEI Accession 0289931 v2.2 (download)
  published 2024-05-13T17:05:18Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: microplastic concentration (measured); Units: counts/individual; Observation Category: in situ; Sampling Instrument: Purse seine net; Sampling and Analyzing Method: This study investigated microplastics occurrence in fishes from the Guinea current region off Ghana's Coast. Fish specimens were obtained directly from landed boats at the Tema fishing harbor, Accra Ghana during April 2019. Fish samples (Sardinella maderensis, Sardinella aurita and Dentex angolensis) were collected from 50 fishing boats at the Tema Fishing Harbor using a random sampling approach, where samples were taken from the first and fifth boats for every five boat landings. A total of 155 fish specimen were obtained for microplastic analysis (n = 77, 50 and 28 for S. maderensis, S. aurita and D. angolensis respectively). Samples were transported on ice and kept frozen until they were ready for analysis at the wet laboratory of the Department of Marine and Fisheries Sciences and the Ecological Laboratory of the University of Ghana. In the laboratory, fish samples were cleaned in microplastic-free distilled water to remove any externally adhered plastic. Total body length (cm) and body weight (g) were measured for each fish prior to dissection. Condition factor (k) of the fish species were estimated from the relationship: K = 100 w/Lb: where W = weight of the fish in grams, L = total length of the fish in centimeters, b = the value obtained from the length-weight equation formula, W=aLb, where a =the intercept of the regression line on the Y axis, describing the rate of change of weight with length and b = the slope of the regression line (referred to as the allometric coefficient; b=3 in this study). The Condition Factor (K) allows quantitative comparison of the condition of individual fish within a population, individual fish from different populations, and two or more populations from different localities. Values of K ranging from 1.2 to 1.6 denote a fish in fair to excellent physiological condition. Whereas, value ranging 0.08 to 1 denote a fish in extremely poor to poor physiological condition. Fish species were dissected from the anal opening to the head region and their entire gastrointestinal tracts removed. The gastrointestinal tracts were exposed to 20 mL of 10 M Potassium hydroxide (KOH) at 60 °C for 24 h to ensure their complete digestion, leaving behind only plastic particles. Digested fluid samples were filtered through 1.2 μm Whatman GF/C microfiber filter papers and residues dried at 60 °C for 24 h prior to identification under the microscope. Identification of microplastics was carried out using a Leica EZ4 HD stereo microscope with image analyses system IC80 HD camera. Microplastic particles were counted, classified and categorized by type according to their shape into fibers or threads (elongated), fragments (angular and irregular pieces), film (thin and transparent) and their color (clear or green) following protocols outlined in the Spotter's Guide for identifying microplastics in Fish developed by the Civic Laboratory for Environmental Action Research.; Data Quality Method: Robust measures were put in place to reduce/avoid microplastic contamination from the working environment. These included maintaining a clean working station, depuration of fish under running filtered water, soaking dissection kits in ethanol between samples to prevent cross contamination, wearing cotton clothing throughout sample preparation and microscopy, setting up petri dishes containing dampened 1.2 μm Whatman GF/C microfiber filter papers during sample preparation and microscopy to account for airborne contamination and sealing digestion vials and petri dishes between laboratory sessions..

Lineage information for: dataset

Processing Steps

Parameter or Variable: microplastic concentration (measured); Units: counts/individual; Observation Category: in situ; Sampling Instrument: Purse seine net; Sampling and Analyzing Method: This study investigated microplastics occurrence in fishes from the Guinea current region off Ghana's Coast. Fish specimens were obtained directly from landed boats at the Tema fishing harbor, Accra Ghana during April 2019. Fish samples (Sardinella maderensis, Sardinella aurita and Dentex angolensis) were collected from 50 fishing boats at the Tema Fishing Harbor using a random sampling approach, where samples were taken from the first and fifth boats for every five boat landings. A total of 155 fish specimen were obtained for microplastic analysis (n = 77, 50 and 28 for S. maderensis, S. aurita and D. angolensis respectively). Samples were transported on ice and kept frozen until they were ready for analysis at the wet laboratory of the Department of Marine and Fisheries Sciences and the Ecological Laboratory of the University of Ghana. In the laboratory, fish samples were cleaned in microplastic-free distilled water to remove any externally adhered plastic. Total body length (cm) and body weight (g) were measured for each fish prior to dissection. Condition factor (k) of the fish species were estimated from the relationship: K = 100 w/Lb: where W = weight of the fish in grams, L = total length of the fish in centimeters, b = the value obtained from the length-weight equation formula, W=aLb, where a =the intercept of the regression line on the Y axis, describing the rate of change of weight with length and b = the slope of the regression line (referred to as the allometric coefficient; b=3 in this study). The Condition Factor (K) allows quantitative comparison of the condition of individual fish within a population, individual fish from different populations, and two or more populations from different localities. Values of K ranging from 1.2 to 1.6 denote a fish in fair to excellent physiological condition. Whereas, value ranging 0.08 to 1 denote a fish in extremely poor to poor physiological condition. Fish species were dissected from the anal opening to the head region and their entire gastrointestinal tracts removed. The gastrointestinal tracts were exposed to 20 mL of 10 M Potassium hydroxide (KOH) at 60 °C for 24 h to ensure their complete digestion, leaving behind only plastic particles. Digested fluid samples were filtered through 1.2 μm Whatman GF/C microfiber filter papers and residues dried at 60 °C for 24 h prior to identification under the microscope. Identification of microplastics was carried out using a Leica EZ4 HD stereo microscope with image analyses system IC80 HD camera. Microplastic particles were counted, classified and categorized by type according to their shape into fibers or threads (elongated), fragments (angular and irregular pieces), film (thin and transparent) and their color (clear or green) following protocols outlined in the Spotter's Guide for identifying microplastics in Fish developed by the Civic Laboratory for Environmental Action Research.; Data Quality Method: Robust measures were put in place to reduce/avoid microplastic contamination from the working environment. These included maintaining a clean working station, depuration of fish under running filtered water, soaking dissection kits in ethanol between samples to prevent cross contamination, wearing cotton clothing throughout sample preparation and microscopy, setting up petri dishes containing dampened 1.2 μm Whatman GF/C microfiber filter papers during sample preparation and microscopy to account for airborne contamination and sealing digestion vials and petri dishes between laboratory sessions..

Acquisition Information (collection)
Instrument	microscope

Last Modified: 2024-05-13T23:09:12Z
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Microplastic concentrations in Sardinella maderensis, Sardinella aurita and Dentex angolensis from the Eastern Central Atlantic Ocean, off the coast of Ghana collected during 2019-04-06 (NCEI Accession 0289931)

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