Respuesta fisiológica de la anémona de mar Bunodosoma zamponii a la contaminación ambiental.

VAZQUEZ, NICOLAS D.; CRUPKIN ANDREA; CHIERICHETTI MELISA; MIGLIORANZA, K.S.B.; ACUÑA, FABIAN H.

Congreso; XIX Congreso Latinoamericano de Ciencias del Mar, Panamá (Panamá); 2022

The sea anemone Bunodosoma zamponii is the most abundant species in Mar del Plata (Buenos28 Aires, Argentina). The presence of persistent organic pollutants and the pesticide chlorpyrifos, was29 recently reported in this species. Therefore, its ecology and physiology were studied and compared30 between two populations living under different anthropogenic pressures. A population from an31 impacted site (Las Delicias, LD) and another from a reference site (Punta Cantera, PC) were32 monitored seasonally for one year. Population density, size and several cellular biomarkers were33 quantified. Anemones from PC were larger and more abundant than those from LD during most34 sampling periods. During winter, Glutathione-S-transferase and catalase activity were higher in LD,35 and protein content and antioxidant defenses were higher in PC. Overall, ecological parameters and36 biomarker responses indicated that the population from PC was healthier. Furthermore, differences37 in biomarker responses are in agreement with recent studies indicating a higher concentration of38 pollutants in anemones from LD. It would be important to investigate B. zamponii’s reproductive39 biology to understand whether LD’s population is in decline.