Publicaciones científicas

Long-finned pilot whales (LFPW) are cetaceans with strong social groups often involved in mass strandings worldwide. However, these beachings occur for reasons that are not fully understood. In 2016, 124 LFPW were stranded on the Chilean Patagonian islands, offering a unique opportunity to obtain crucial information on the ecology, biology, and genetics of this population.…

Antarctica has experienced a growing human presence in recent decades, with year-round scientific and military stations concentrated along the coast. Wastewater effluents from these settlements represent a growing concern, as they contain pharmaceuticals and personal care products (PPCPs) capable of disrupt endocrine functions in aquatic organisms at environmentally relevant concentrations. This study evaluated the impact…

Pharmaceuticals and illicit drugs are increasingly recognized as contaminants of emerging concern (CECs) in marine environments, particularly in areas undergoing rapid urbanization and tourism-driven development. Potential exposure to such contaminants, however, remains largely unexplored in The Bahamas. This study provides the first investigation into the occurrence of selected CECs (acetaminophen, benzoylecgonine, caffeine, carbamazepine, ciprofloxacin, citalopram,…

Mercury exists in three forms: elemental, inorganic, and organic, with methylmercury (MeHg) being the most concerning due to its ability to cross cellular barriers and bioaccumulate, particularly in marine mammals, where over 90 % of total mercury is in the MeHg form. Despite its importance, there is limited data on mercury bioaccumulation in marine mammals…

Mercury (Hg) is a global pollutant of concern because its organic and more toxic form, methylHg (MeHg), bioaccumulates and biomagnifies through aquatic food webs to levels that affect the health of fish and fish consumers, including humans. Although much is known about trophic transfer of MeHg in aquatic food webs at temperate latitudes in the northern hemisphere, it is…

Pulp and paper mill effluents (PPMEs) have been shown to increase gonad size, cause early maturation, and disrupt hormone functions in native and non-native Chilean fish. In this study, we assessed reproductive (plasma vitellogenin; VTG, gonad development) and metabolic (ethoxyresorufin-O-deethylase activity; EROD) end points, relative liver size (LSI) and condition factor (K) of juvenile female and…