Results 31 to 40 of about 527 (160)

Seasonal periodicity of growth and composition in valves of Diplodon chilensis patagonicus (d'Orbigny, 1835) [PDF]

open access: yesJournal of Molluscan Studies, 2008
Freshwater mussels of the genus Diplodon (Unionida) are common inhabitants of lakes and rivers in South America, and have slow growth and long life spans. We established the annual periodicity of incremental shell growth in Diplodon chilensis patagonicus (d'Orbigny, 1835) and calculated growth rates at different ages, using internal ring counting ...
A.L. Soldati   +4 more
openaire   +1 more source

Effects of sewage discharges on lipid and fatty acid composition of the Patagonian bivalve Diplodon chilensis

open access: yesMarine Pollution Bulletin, 2014
Lipid and fatty acid (FA) composition and selected oxidative stress parameters of freshwater clams (Dipolodon chilensis), from a sewage-polluted (SMA) and a clean site, were compared. Trophic markers FA were analyzed in clams and sediment. Saturated FA (SAFA), and bacteria and sewage markers were abundant in SMA sediments, while diatom markers were 50%
Rocchetta, Iara   +4 more
openaire   +3 more sources

Biomarker responses to sewage pollution in freshwater mussels ( Diplodon chilensis ) transplanted to a Patagonian river

open access: yesJournal of Environmental Science and Health, Part A, 2014
Field and laboratory experiments were combined to evaluate biomarker responses of Diplodon chilensis to sewage pollution. Mussels from an unpolluted area in Lacar lake (S0) were caged at a reference site (S1) and at two sites with increasing sewage pollution (S2, S3) in Pocahullo river (all in Argentina).
Bianchi, Virginia Angélica   +2 more
openaire   +3 more sources

Habitat Structure Shapes Mollusc Assemblages in an Urban Semiarid River: Implications for Conservation and Public Health

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Fine‐scale environmental drivers shape freshwater mollusc assemblages in urban semiarid rivers. We examined how substrate composition and water chemistry influence mollusc richness and abundance along a polluted stretch of a river in the Brazilian semiarid region. Surveys at five sites recorded 2479 individuals.
Lucas Ariel Sousa Aguiar   +4 more
wiley   +1 more source

Estudo de Diplodon (Diplodon) multistriatus (Lea, 1831) encontrado no Estado do Rio de Janeiro, Brasil (Molluscca, Bivalvia, Hyriidae) [PDF]

open access: yes, 1986
Diplodon (Diplodon) multistriatus (Lea, 1831) from the State of Rio de Janeiro, Brazil, was investigated. The studies undertaken were related to aspects of the taxonomy, morphology of the shell, and structures of the soft parts when relevant.
Ricci, Célia Neli
core  

The Miocene lacustrine carbonate factory of the Ñirihuau Formation, Ñirihuau Basin, North Patagonian Andes, Argentina

open access: yesThe Depositional Record, Volume 11, Issue 1, Page 147-181, February 2025.
Detailed sedimentologic, petrographic and geochemical analyses of the lacustrine deposits registered on the Ñirihuau Formation middle section in the northern sector of the Ñirihuau Basin are presented. The lacustrine carbonates found within these deposits were analysed to characterise the palaeolake system as well as the carbonate factory of the basin,
Camila Santonja   +7 more
wiley   +1 more source

Hysterothylacium larvae (Nematoda, Anisakidae) in the freshwater mussel Diplodon suavidicus (Lea, 1856) (Mollusca, Unioniformes, Hyriidae) in Aripuanã River, Amazon, Brazil [PDF]

open access: yes, 2011
Larvae of Hysterothylacium use various invertebrates as intermediate hosts. Definite hosts include fish, birds, reptiles or marine mammals. This study describes the occurrence of Hysterothylacium (Nematoda, Anisakidae) larvae parasitizing the pericardic ...
Varella, Angela M.B.   +13 more
core   +1 more source

Classes de comprimento e descrição histológica das gônadas de Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) em um lago artificial, Morretes, Paraná, Brasil

open access: yesBiotemas, 2014
O objetivo deste estudo foi analisar a frequência por classes de comprimento e a organização histológica das gônadas de Diplodon ellipticus em um lago artificial localizado no município de Morretes-PR.
Ana Aparecida Nogueira Meyer   +3 more
doaj   +1 more source

Microestructura y polimorfismo en valvas recientes de Diplodon chilensis patagonicus (d’Orbigny 1835) [PDF]

open access: yesGayana (Concepción), 2010
Gracias a su potencial como registro ambiental, las valvas del molusco Diplodon han despertado recientemente el interes de la comunidad cientifca. En este trabajo, por medio de microscopia electronica de barrido (SEM) y espectroscopia Raman se investigo la microestructura y el polimorfsmo en valvas recientes de Diplodon chilensis patagonicus.
Soldati, Analía L   +3 more
openaire   +2 more sources

Diplodon patagonicus (Bivalvia: Hyriidae): To be or not to be [PDF]

open access: yes, 2012
Se entregan antecedentes que establecen que Diplodon patagonicus (D'Orbigny 1835) señalado como especie presente en la región Neo tropica-Patagonia por Graf & Cummins (2007) corresponde aDiplodon chilensis patagonicus (D'Orbigny 1846) (sensu Haas 1969)
Parada, Esperanza, Peredo, Santiago
core  

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