Environmental and sanitary conditions of Guanabara Bay, Rio de Janeiro

GO Fistarol, FH Coutinho, APB Moreira… - Frontiers in …, 2015‏ - frontiersin.org
Guanabara Bay is the second largest bay in the coast of Brazil, with an area of 384 km2. In
its surroundings live circa 16 million inhabitants, out of which 6 million live in Rio de Janeiro …

Multi-species okadaic acid contamination and human poisoning during a massive bloom of Dinophysis acuminata complex in southern Brazil

LL Mafra Jr, PKW Nolli, LE Mota, C Domit, M Soeth… - Harmful Algae, 2019‏ - Elsevier
On June 2016, a major bloom of Dinophysis acuminata complex was noticed over the coast
of Paraná State (PR), southern Brazil, an area unprotected by any official monitoring …

Assessment of anthropogenic pollution in Guanabara Bay (SE Brazil) through biogeochemical data and stable isotope mixing models

TM Senez-Mello, MVA Martins… - … Science and Pollution …, 2024‏ - Springer
This work intends to identify pollution sources along the margins of Guanabara Bay (GB; SE
Brazil) through a multiproxy approach and Bayesian stable isotopic mixture model (BSIMM) …

Isotopic niches reveal the trophic structure of the cetacean community in the oceanic waters around the Azores

M Lebon, A Colaço, R Prieto, I Cascão… - Frontiers in Marine …, 2024‏ - frontiersin.org
Introduction The oceanic waters around the Azores host a high diversity of cetaceans, with
28 species of toothed and baleen whales present year-round or seasonally. This high …

[HTML][HTML] From narrow and overlapped to wide and segregated: The isotopic niche of a tropical cetacean community

MC Neves, M Vannuci-Silva, G Montanini… - Ecological …, 2023‏ - Elsevier
Species in sympatry can coexist due to some degree of niche partitioning. Four cetacean
species, Guiana (Sotalia guianensis), franciscana (Pontoporia blainvillei), Atlantic spotted …

Long-term consequences of high polychlorinated biphenyl exposure: projected decline of delphinid populations in a hotspot for chemical pollution

N de Oliveira-Ferreira, RR Carvalho… - Environmental …, 2021‏ - ACS Publications
Rough-toothed dolphins, Steno bredanensis, are closely associated with coastal waters in
the Southwestern Atlantic Ocean, increasing the exposure to multiple stressors, such as …

Mercury, selenium and stable isotopes in four small cetaceans from the Southeastern Brazilian coast: influence of feeding strategy

G Baptista, HA Kehrig, APM Di Beneditto… - Environmental …, 2016‏ - Elsevier
Dolphins are good bioindicators of the contamination status of marine ecosystems, since
their dietary and habitat plasticity in both coastal and offshore ecotypes provide information …

Organochlorine concentrations (PCBs, DDTs, HCHs, HCB and MIREX) in delphinids stranded at the northeastern Brazil

EB Santos-Neto, CE Azevedo-Silva, TL Bisi… - Science of the total …, 2014‏ - Elsevier
Organochlorine compounds are highly persistent in the environment, causing
bioaccumulation and biomagnification through the marine food chain. To verify the …

Understanding trophic transference role in mercury biomagnification and bioaccumulation in the Atlantic spotted dolphin (Stenella frontalis)

LR Tovar, MC Neves, BMR Manhães, G Montanini… - Chemosphere, 2023‏ - Elsevier
Mercury is a metal of toxicological importance that occurs naturally. However, its
concentration can be affected by anthropogenic activities and has the potential to …

Resource partitioning among stranded aquatic mammals from Amazon and Northeastern coast of Brazil revealed through Carbon and Nitrogen Stable Isotopes

AF Costa, S Botta, S Siciliano, T Giarrizzo - Scientific Reports, 2020‏ - nature.com
Aquatic mammals play an important role in community structure. The present study applied
stable isotope analysis (SIA) to evidence trophic relationships and resource partitioning …