Results 31 to 40 of about 109 (89)

New Imposex Development Index (IDI) for Stramonita haemastoma (Mollusca: Muricidae): A Transplantation Experiment in the Brazilian Northeast [PDF]

Ecotoxicology and Environmental Contamination, 2007
A total of 600 Stramonita haemastoma (Mollusca: Muricidae) individuals, free of imposex, were transplanted into a marina with an intense ship flow. Thirty individuals were collected periodically until 210 days and analyzed according to RPLI (Relative Penis Length Index), RPSI (Relative Penis Size Index), IDI (Imposex Development Index, developed in ...
Liana R. Queiroz, I. B. Castro, C. A. Rocha-Barreira   +2 more
openaire   +1 more source

Molecular evidence of two cryptic species of Stramonita (Mollusca, Muricidae) in the southeastern Atlantic coast of Brazil

Genetics and Molecular Biology
Snails of the genus Stramonita are commonly found in the rocky intertidal habitat of the western Atlantic Ocean coast. They belong to a monophyletic taxon that occurs along the tropical and warm-temperate Atlantic and eastern Pacific rocky shores.
Juliana Beltramin De Biasi, Acácio Ribeiro Gomes Tomás, Alexandre Wagner Silva Hilsdorf   +2 more
doaj   +1 more source

Meat yield of Bolinus brandaris (Gastropoda: Muricidae): Comparative assessment of the influence of sex, size and reproductive status

Scientia Marina, 2017
The present study assessed the influence of sex, size and reproductive status on the meat yield (soft tissues proportion) of the purple dye murex (Bolinus brandaris) from the Ria Formosa lagoon (southern Portugal).
Paulo Vasconcelos, Carlos M. Barroso, Miguel B. Gaspar   +2 more
doaj   +1 more source

Is aphallic vas deferens development in females related to the distance from organotin sources? A study with Stramonita haemastoma

Ecotoxicology and Environmental Safety, 2013
Imposex, a syndrome characterized by the appearance of a penis and/or vas deferens in female gastropods due the presence of organotins in environment, is still observed in Brazilian gastropod populations, as in other countries, even after the tributyltin (TBT) ban.
R, Toste, I A, Pessoa, M P, Dore, M A, Parahyba, M A, Fernandez   +4 more
openaire   +2 more sources

Spatial-temporal distribution and recruitment of Stramonita haemastoma (Linnaeus, 1758) (Mollusca) on a sandstone bank in Ilhéus, Bahia, Brazil

Brazilian Journal of Biology
We examined aspects of the population ecology of the gastropod Stramonita haemastoma at Ilhéus, Bahia, Brazil. We collected monthly from October 2007 through September 2008 on a sandstone bank 1.5 km long, on which two points and two sampling levels were
JJB. Santos, G. Boehs
doaj   +1 more source

Reconsidering the role of introduced species in the climate‐affected and highly invaded eastern Mediterranean

Conservation Biology, Volume 40, Issue 4, August 2026.
Abstract Bioinvasions are considered mostly as a biodiversity and conservation hazard, but in specific situations, introduced species can bring ecological or socioeconomic benefits. We assessed the social–ecological role of marine introduced species in the eastern Mediterranean Sea—a global hotspot of bioinvasions and extirpations—and their potential ...
Stelios Katsanevakis, Jonathan Belmaker, Gil Rilov, Erez Yeruham, Andreas Konstantinidis, Maria Papazekou, Sylvaine Giakoumi, Antonios D. Mazaris   +7 more
wiley   +1 more source

Trophic Ecology of Loggerhead Turtles (Caretta caretta) in Southern Brazil: Insights From Stable Isotopes

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT This study aimed to investigate the trophic ecology of loggerhead turtles recorded stranded along the Paraná coast in southern Brazil. Carbon and nitrogen stable isotopes were analysed in muscle tissues from 20 loggerhead turtles and in 69 specimens representing 12 prey species (molluscs, crustaceans and teleost fishes).
Gleici Montanini, Mariana Cappello Neves, Nara Oliveira‐Ferreira, Edmar Antonio Mazzi, Camila Domit, Plínio Barbosa de Camargo, José Lailson‐Brito, Tatiana Lemos Bisi   +7 more
wiley   +1 more source

Assessing the Continuous Impact of Tributyltin from Antifouling Paints in a Brazilian Mangrove Area Using Intersex in Littoraria angulifera (Lamarck, 1822) as Biomarker

International Journal of Oceanography, Volume 2013, Issue 1, 2013., 2013
Intersex is a sensitive biomarker of TBT exposure and effects in littorinid gastropods and described for the mangrove periwinkle Littoraria angulifera for the first time in this study. The objective was to describe the occurrence of intersex in L. angulifera, to propose the species as a sentinel organism to assess TBT contamination, and to characterize
M. B. Costa, G. C. Zamprogno, F. C. Pedruzzi, G. B. Dalbem, M. M. P. Tognella, Heinrich Hühnerfuss   +5 more
wiley   +1 more source

Incrustação em Moluscos Holocênicos da Planície Litorânea de Cabo Frio, RJ. [PDF]

Anuário do Instituto de Geociências, 2007
Conchas ou bioclastos são amplamente utilizados por organismos incrustantes, escavadores e predadores que deixam nos biosedimentos oregistro da sua atividade. A utilização de esqueletos de moluscos implica em escavação e/ou ilhas de substrato duro para a
Alan de Paiva Bernardes, Maria Célia Elias Senra   +1 more
doaj  

Diel Variations in Cell Abundance and Trophic Transfer of Diarrheic Toxins during a Massive Dinophysis Bloom in Southern Brazil

Toxins, 2018
Dinophysis spp. are a major source of diarrheic toxins to marine food webs, especially during blooms. This study documented the occurrence, in late May 2016, of a massive toxic bloom of the Dinophysis acuminata complex along the southern coast of Brazil,
Thiago Pereira Alves, Luiz Laureno Mafra   +1 more
doaj   +1 more source