First records of metal concentrations in the Pacific oyster (Crassostrea gigas) from a Southwest Atlantic estuary

Histological characterization and morphological alterations in gill and digestive gland in non-native bivalve from the Province of Buenos Aires: Spatial and seasonal evaluation

“…AP is located near one of the most urbanized and industrialized coastal areas of Argentina (Arias et al 2010) and has suffered several anthropic perturbations as a consequence of growing industrial activity and demographic expansion (Botté et al 2007;Botté et al 2010). A greater exposure to metals in AP than PC has been suggested, since a decreasing trend in the content of some metals in the body of M. gigas was reported from within the BBE towards adjacent beaches (Colla et al 2018). As here, Zanette et al (2006) observed an increase in the presence of morphological changes in the gills of Crassostrea rhizophorae with an increase in sources of pollution by human activity.…”

“…These results can indicate that there is a negative relationship between intense human activities and the effect on the gills and digestive glands of Paci c oysters. Thus, the use of M. gigas as a sentinel specie and evaluation biomarkers as histological aspects of this species becomes an important tool for population management in the south of Buenos Aires province, because besides being consumed and presenting possible issues for human health such as virus (Barbieri et al 2019), heavy metals (Colla et al 2018) and microplastics (Severini et al 2019) in their bodies; this species can have a negative effect on the functioning of ecosystems, competing with native species such as B. rodriguezii. Besides that, the understanding of morphology is one of the rst steps toward the establishment of strategies to control invasive species (Freitas et al 2021).…”

Fishers' Ecological Knowledge about Marine Pollution: What Can FEK Contribute to Ecological and Conservation Studies of a Southwestern Atlantic Estuary?

“…Within the landscape transformations of the BBE, fishers also consider that the expansion and colonization of invasive species are an "effect" of port dredging. Dredging presents potential risks to human health, in addition to modifying the natural landscape, due to the capacity of species to accumulate pollutants and pathogens (Bravo et al 2017;Fernández Severini et al 2018;Fiori et al 2016;La Colla et al 2018b;Pratolongo et al 2013). The coastal erosion process has been studied by several researchers, initially by Perillo and Cuadrado (1991) and, more recently, by Pratolongo et al (2013).…”