RT info:eu-repo/semantics/article
T1 Assessment of microplastic content in Diadema africanum sea urchin from Tenerife (Canary Islands, Spain)
A1 Díaz Peña, Francisco Javier
A1 Sevillano González, Marta
A1 González Sálamo, Javier
A1 Hernández Sánchez, Cintia
A1 Catalán Torralbo, Sergio
A1 Ródenas Seguí, Airán
A1 Hernández Borges, Javier
K1 Microfibers
K1 Canary Islands
K1 μRaman spectroscopy
AB Sea urchins are highly abundant in the marine ecosystem where they graze limiting algal biomass and also serving as food for other predators. In this work, the presence of microplastics in the digestive tracts and gonads of 33 Diadema africanum sea urchins collected at two sampling points in Tenerife (Canary Islands, Spain) was studied. After separation and digestion of the digestive tracts and the gonads, the visualization of the filtrates under the stereomicroscope revealed the presence of 320 items which were microfibers (97.5%), fragments(1.9%) and films (0.6%), mainly blue (43.3 and 47.0% in the two sampling points, Tajao and El Porís, respectively) and translucent white (32.5 and 39.5%, respectively). Statistical analysis revealed that there were no significative differences in the contents of gonads and digestive tracts between both sampling locations. Regarding microfibers lengths, significative differences were only observed between the two sampling points, not between tissues. μRaman analysis showed that they were mainly cellulosic (46.0%), polypropylene (24.3%) and polyethylene terephthalate (24.3%). This study confirms for the first time the presence of microplastics in seaurchins from the Macaronesian region and also from Spain.
YR 2022
FD 2022
LK http://riull.ull.es/xmlui/handle/915/35975
UL http://riull.ull.es/xmlui/handle/915/35975
LA en
NO https://doi.org/10.1016/j.marpolbul.2021.113174
DS Repositorio institucional de la Universidad de La Laguna
RD 12-nov-2024