Results 31 to 40 of about 2,701 (211)

Organotin pollution at Arraial do Cabo, Rio de Janeiro State, Brazil: increasing levels after the TBT ban

open access: yesBrazilian Journal of Oceanography, 2011
Imposex, an endocrine disruption phenomenon, is a biomarker of tributyltin (TBT) exposure in marine gastropod populations. The occurrence and intensity of the syndrome in populations of the neogastropod Stramonita haemastoma were ascertained at nine ...
Raquel Toste   +4 more
doaj   +1 more source

Imposex in Thais gradata as a biomarker for TBT contamination on the southern coast of Peninsular Malaysia [PDF]

open access: yes, 2010
Thais gradata samples were collected from six locations along the southern shores of Peninsular Malaysia and analyzed for imposex incidence and organotin (butyltins (BTs), including tributyltin, dibutyltin, and monobutyltin, and phenyltins (PTs ...
Arai, Takaomi   +5 more
core   +1 more source

Biomarkers: a strategic tool in the assessment of environmental quality of coastal waters [PDF]

open access: yes, 2007
Ecosystems are under the pressure of complex mixtures of contaminants whose effects are not always simple to assess. Biomarkers, acting as early warning signals of the presence of potentially toxic xenobiotics, are useful tools for assessing either ...
Bebianno, Maria João   +4 more
core   +1 more source

Nucella lapillus L. imposex levels after legislation prohibiting TBT antifoulants: temporal trends from 2003 to 2008 along the Portuguese coast [PDF]

open access: yes, 2011
Nucella lapillus (dog whelk) imposex levels were assessed along the mainland Portuguese coast in 2006 and 2008 and were compared with available data from 2003 for the same area.
Agresti   +42 more
core   +1 more source

Oxidative stress indicators in populations of the gastropod Buccinanops globulosus affected by imposex [PDF]

open access: yes, 2015
The gastropod Buccinanops globulosus is commonly used as a bioindicator of tributyltin (TBT) contamination due to its high imposex incidence in maritime traffic areas. The aim of this study was to evaluate both oxidative stress in B.
Bigatti, Gregorio   +4 more
core   +2 more sources

Imposex levels and tributyltin pollution in Ria de Aveiro (NW Portugal) between 1997 and 2007: evaluation of legislation effectiveness [PDF]

open access: yes, 2009
Nucella lapillus imposex levels and organotin (OT) concentrations in water and female tissues were measured in samples collected from the Ria de Aveiro (NW Portugal) between 1997 and 2007.
Alzieu   +23 more
core   +1 more source

Intersex related gene expression profiles in clams Scrobicularia plana : molecular markers and environmental application [PDF]

open access: yes, 2015
Intersex, the appearance of female characteristics in male gonads, has been identified in several aquatic species. It is a widespread phenomenon in populations of the bivalve, Scrobicularia plana, from the southwest coast of the U.K.
Alvarez-Munoz, Diana   +14 more
core   +1 more source

Triorganotin as a compound with potential reproductive toxicity in mammals

open access: yesBrazilian Journal of Medical and Biological Research, 2011
Organotin compounds are typical environmental contaminants and suspected endocrine-disrupting substances, which cause irreversible sexual abnormality in female mollusks, called "imposex".
V.S. Delgado Filho   +3 more
doaj   +3 more sources

Hydrobia ulvae imposex levels at Ria de Aveiro (NW Portugal) between 1998 and 2007: a counter-current bioindicator? [PDF]

open access: yes, 2010
Imposex expression in prosobranch gastropods has been widely used as a biomarker of tributyltin (TBT) pollution. Estuaries have been described as the most affected areas by this problem since they usually enclose the main TBT sources—ports, dockyards ...
Armonies   +44 more
core   +1 more source

Ultrastructural studies of oogenesis in Bolinus brandaris (Gastropoda: Muricidae)

open access: yesScientia Marina, 2004
Ultrastructural studies of oogenesis in Bolinus brandaris are described. Although the initial phase of oogenesis is common to most animal species, vitellogenesis can be considered a species-specific characteristic.
María José Amor   +2 more
doaj   +1 more source

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