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Mostrando ítems 171-178 de 178
Chromium behavior in a highly urbanized coastal area (Bahía Blanca Estuary, Argentina)
(Pergamon-Elsevier Science Ltd, 2021-04-22)
The contamination of estuaries by heavy metals from anthropogenic activities in the industrial, domestic, and agricultural sectors is a global concern. In this study, the Cr, Fe, and Mn levels in the suspended particulate ...
Natural and anthropogenic hydrocarbons in sediments from the Chubut River (Patagonia, Argentina)
(Pergamon-Elsevier Science Ltd, 2004-05)
In march of 2001 a study was carried out to evaluate hydrocarbon levels in the lower course of the Chubut River. The study included 12 sample stations along the river from San Cristobal Bridge to the confluence with the ...
Influence of El Niño Southern Oscillation phenomenon on coastal phytoplankton in a mixohaline ecosystem on the southeastern of South America: Río de la Plata estuary
(Pergamon-Elsevier Science Ltd, 2015-09)
The aim of this study was to analyze the density, diversity, biomass and assemblage composition of the phytoplankton in relation to environmental conditions (physical, chemical, hydrological and meteorological variables), ...
Are semi-terrestrial crabs threatened by human noise? Assessment of behavioural and biochemical responses of Neohelice granulata (Brachyura, Varunidae) in tank
(Pergamon-Elsevier Science Ltd, 2018-12)
This study examined the effects of human lab-generated noise (sweep tone) on the behaviour and biochemistry of a semi-terrestrial crab (Neohelice granulata). The experiment was carried out in tanks equipped with video- and ...
Mercury levels in feathers of Magellanic penguins
(Pergamon-Elsevier Science Ltd, 2012)
Analysis of a major Aeolian dust input event and its impact on element fluxes and inventories at the DYFAMED site (Northwestern Mediterranean)
(Elsevier Science, 2020-06)
Continental dust can be suspended and transported by the wind, reaching seawater masses far away from its source. The deposition of the aerosols on the ocean surface can alter the abundance of chemical species in the water ...
Acute exposition to Roundup Transorb® induces systemic oxidative stress and alterations in the expression of newly sequenced genes in silverside fish (Odontesthes humensis)
(Springer Heidelberg, 2021-07-06)
Roundup Transorb® (RDT) is a glyphosate-based herbicide commonly used in agricultural practices worldwide. This herbicide exerts negative effects on the aquatic ecosystem and affects bioenergetic and detoxification pathways, ...
Harmful phytoplankton in the Beagle Channel (South America) as a potential threat to aquaculture activities
(Pergamon-Elsevier Science Ltd, 2019-08)
The Beagle Channel is a remote subantarctic environment where mussel aquaculture initiatives have existedsince the early 1990s. Here we analyze phytoplankton biomass and composition, and the occurrence of harmfulmicroalgae ...