Duncan, Emily M; Deniz Akbora, Hasan; Baldi, Patrizia; Beton, Damla; Broderick, Annette C; Cicek, Burak Ali; Crowe-Harland, Charlotte; Davey, Sophie; DeSerisy, Tess; Fuller, Wayne J; Haywood, Julia C; Hsieh, Yu Jou; Kaya, Ecem; Omeyer, Lucy C M; Ozkan, Meryem; Palmer, Josie L; Roast, Emma; Santillo, David; Schneider, M Jesse; Snape, Robin T E; Sutherland, Katrina C; Godley, Brendan J (2024): Macroplastic ingestion in loggerhead turtles (Carretta caretta) stranded or bycaught in North Cyprus, eastern Mediterranean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965690
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Observations of investigations for plastic ingestion in loggerhead turtles (Caretta caretta), stranded or bycaught on the coastline of North Cyprus (Eastern Mediterranean). A total of 135 loggerhead turtles were sampled spanning a period of 11 years (2012-2022). During necropsy, the entire gastrointestinal tract was removed and initial contents weighed. The contents were grossly examined then rinsed through a 1 mm mesh sieve to separate and remove the plastic for classification and dietary items for storage and analysis. Ingested plastic was classified using a system outlined in Duncan et al. (2019, doi:10.1038/s41598-019-48086-4; 2021, doi:10.3389/fmars.2021.699521) which builds upon the Fulmar Protocol and MSFD (Marine Strategy Framework Directive) Marine Litter Report 2011 (Descriptor 10) toolkits (Galgani et al., 2014, doi:10.1016/j.marenvres.2014.02.003; van Franeker et al., 2011, doi:10.1016/j.envpol.2011.06.008).
Supplement to:
Duncan, Emily M; Deniz Akbora, Hasan; Baldi, Patrizia; Beton, Damla; Broderick, Annette C; Cicek, Burak Ali; Crowe-Harland, Charlotte; Davey, Sophie; DeSerisy, Tess; Fuller, Wayne J; Haywood, Julia C; Hsieh, Yu Jou; Kaya, Ecem; Omeyer, Lucy C M; Ozkan, Meryem; Palmer, Josie L; Roast, Emma; Santillo, David; Schneider, M Jesse; Snape, Robin T E; Sutherland, Katrina C; Godley, Brendan J (submitted): Marine turtles as bio-indicators of plastic pollution in the eastern Mediterranean. Marine Pollution Bulletin
References:
Duncan, Emily M; Arrowsmith, Jessica A; Bain, Charlotte E; Bowdery, Hannah; Broderick, Annette C; Chalmers, Tierney; Fuller, Wayne J; Galloway, Tamara S; Lee, Jonathon H; Lindeque, Penelope K; Omeyer, Lucy C M; Snape, Robin T E; Godley, Brendan J (2019): Diet-related selectivity of macroplastic ingestion in green turtles (Chelonia mydas) in the eastern Mediterranean. Scientific Reports, 9(1), 11581, https://doi.org/10.1038/s41598-019-48086-4
Duncan, Emily M; Broderick, Annette C; Critchell, Kay; Galloway, Tamara S; Hamann, Mark; Limpus, Colin J; Lindeque, Penelope K; Santillo, David; Tucker, Anton D; Whiting, Scott; Young, Erina J; Godley, Brendan J (2021): Plastic Pollution and Small Juvenile Marine Turtles: A Potential Evolutionary Trap. Frontiers in Marine Science, 8, 699521, https://doi.org/10.3389/fmars.2021.699521
Galgani, Francois; Claro, Francoise; Depledge, M; Fossi, C (2014): Monitoring the impact of litter in large vertebrates in the Mediterranean Sea within the European Marine Strategy Framework Directive (MSFD): Constraints, specificities and recommendations. Marine Environmental Research, 100, 3-9, https://doi.org/10.1016/j.marenvres.2014.02.003
van Franeker, Jan Andries; Blaize, Christine; Danielsen, Johannis; Fairclough, Keith; Gollan, Jane; Guse, Nils; Hansen, Poul-Lindhard; Heubeck, Martin; Jensen, Jens-Kjeld; Le Guillou, Gilles; Olsen, Bergur; Olsen, Kåre-Olav; Pedersen, J; Stienen, Eric W M; Turner, Daniel M (2011): Monitoring plastic ingestion by the northern fulmar Fulmarus glacialis in the North Sea. Environmental Pollution, 159(10), 2609-2615, https://doi.org/10.1016/j.envpol.2011.06.008
Coverage:
Median Latitude: 35.311733 * Median Longitude: 31.809991 * South-bound Latitude: 34.778741 * West-bound Longitude: 2.937465 * North-bound Latitude: 35.666298 * East-bound Longitude: 34.572274
Date/Time Start: 1970-01-01T00:00:00 * Date/Time End: 2022-06-13T00:00:00
Event(s):
Carretta_caretta_1 (Kocareis) * Latitude: 35.201622 * Longitude: 33.900035 * Date/Time: 2012-12-01T00:00:00 * Location: Cyprus * Method/Device: Biological sample (BIOS)
Comment:
Types of plastic (She, Thr, Foam, Frag, Poth, Ind): The type of plastic debris:
Industrial plastic pellets or nurdles (IND) and user plastics (USE) which can be split into several sub-categories; sheetlike plastic (SHE e.g., plastic bags), threadlike/filamentous plastic (THR e.g., remains of rope), foamed plastics (FOAM e.g., polystyrene), fragments (FRAG e.g., hard plastic pieces) and other (POTH, e.g., rubber, elastics, items that are 'plastic-like', not clearly fitting into another category). Taken from Fulmar Protocol and MSFD (Marine Strategy Framework Directive) Marine Litter Report 2011 (Descriptor 10) toolkits. Counts observed in specific individual turtle.
Colours of plastic:
(Clear, White, Pink/Purple, Red, Orange, Yellow, Green, Blue, Bown, Black, Grey) Colour was recorded within 11 categories. Counts observed in specific individual turtle.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Duncan, Emily M | |||
| 2 | DATE/TIME | Date/Time | Duncan, Emily M | Geocode – Date the turtle was found either stranded on the coastline or bycaught by fisher | ||
| 3 | Site | Site | Duncan, Emily M | Location within North Cyprus the turtle was found either stranded on the coastline or bycaught by fisher | ||
| 4 | LATITUDE | Latitude | Duncan, Emily M | Geocode – Approximate Latitude in decimal degrees of stranding sit or area/harbour bycaught by fisher | ||
| 5 | LONGITUDE | Longitude | Duncan, Emily M | Geocode – Approximate Longitude in decimal degrees of stranding sit or area/harbour bycaught by fisher | ||
| 6 | Section | Sect | Duncan, Emily M | Coastal section within North Cyprus the turtle was found either stranded on the coastline or bycaught by fisher - North, East, West | ||
| 7 | Description | Description | Duncan, Emily M | Stranded/Bycaught: Whether the turtle was stranded on the coastline or bycaught by fisher | ||
| 8 | Sex | Sex | Duncan, Emily M | Identified sex (if possible) of turtle as necropsy - Male, Female, Unidentified | ||
| 9 | Curved carapace length | CCL | cm | Duncan, Emily M | Ruler tape | Empty cells = unknown |
| 10 | Comment | Comment | Duncan, Emily M | Normal level of digesta or Low level of digesta. Turtles demonstrated varying levels of gut fill and were classified as those with normal levels of digesta (NLD) present therefore exhibiting recent feeding activity, i.e. digested and partially digested remains of multiple prey items, and those with a distinct lack of recognisable dietary items with low levels of digesta (LLD), i.e. no discernible food items present, containing only sediment and digestive fluids | ||
| 11 | Plastic, ingested | Plastic ingest | Duncan, Emily M | Ingested Plastic Y/N: Whether turtle was found with ingested plastic at necropsy and gut content processing | ||
| 12 | Plastic particles | Plastic | # | Duncan, Emily M | Counted | Total number of all plastic pieces ingested by each individual turtle |
| 13 | Plastic, dry mas | Plastic dm | g | Duncan, Emily M | Dried and weighted | Total dry weight of all plastic pieces ingested by each individual turtle |
| 14 | Plastic, length | Plastic l | mm | Duncan, Emily M | Ruler tape | Average length (long length) of all plastic pieces ingested by each individual turtle |
| 15 | Plastic, length | Plastic l | mm | Duncan, Emily M | Ruler tape | Maximum length (long length) of all plastic pieces ingested by each individual turtle |
| 16 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | She |
| 17 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | Thr |
| 18 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | Foam |
| 19 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | Frag |
| 20 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | Poth |
| 21 | Plastic particles, type | Plastic part t | # | Duncan, Emily M | See description in dataset comment | Ind |
| 22 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Clear |
| 23 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | White |
| 24 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Pink/Purple |
| 25 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Red |
| 26 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Orange |
| 27 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Yellow |
| 28 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Green |
| 29 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Blue |
| 30 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Brown |
| 31 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Black |
| 32 | Plastic particles, color | Plastic part c | # | Duncan, Emily M | See description in dataset comment | Grey |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2199 data points
Download Data
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