Results 51 to 60 of about 532 (156)

PRIMERAS OBSERVACIONES DE LA “ALMEJA ASIÁTICA” CORBICULA FLUMINEA (MÜLLER, 1774) (VENEROIDA: CYRENIDAE) EN UNA ACEQUIA DEL RÍO MALA, LIMA, PERÚ

Biologist, 2018
En el presente estudio se realiza el primer registro de la presencia de Corbicula fluminea (Muller, 1774) en los sistemas acuicolas de la Cuenca de Mala, Lima, Peru y se detallan algunos caracteres de diagnostico para su facil determinacion.
Uriel Torres-Zevallos
semanticscholar   +1 more source

Extreme primary and secondary protein structure variability in the chimeric male-transmitted cytochrome c oxidase subunit II protein in freshwater mussels: Evidence for an elevated amino acid substitution rate in the face of domain-specific purifying selection

BMC Evolutionary Biology, 2008
Background Freshwater unionoidean bivalves, and species representing two marine bivalve orders (Mytiloida and Veneroida), exhibit a mode of mtDNA inheritance involving distinct maternal (F) and paternal (M) transmission routes concomitant with highly ...
Stewart Donald T, Walker Jennifer M, Piontkivska Helen, Chapman Eric G, Curole Jason P, Hoeh Walter R   +5 more
doaj   +1 more source

First genotoxicity study of Paraná river water from Argentina using cells from the clam Corbicula fluminea (Veneroida Corbiculidae) and Chinese hamster (Cricetulus griseus Rodentia, Cricetidae) K1 cells in the comet assay

Genetics and Molecular Biology, 2008
High concentrations of xenobiotics from urban and industrial wastes have contributed to the contamination of many aquatic environments. We used the comet assay to evaluate the genotoxic potential of water collected from the River Paraná, which receives a
Jacqueline D. Caffetti, Mário S. Mantovani, María C. Pastori, Alberto S. Fenocchio   +3 more
doaj   +1 more source

Karyotypes ofCerastoderma edule, Venerupis pullastraandVenerupis rhomboides(Bivalvia, Veneroida)

Aquatic Living Resources, 1992
The chromosomes of three commercially important species of veneroid bivalves were studied: Cerastoderma edule (Cardiidae), Venerupis pullastra and Venerupis rhomboides (Veneridae, Tapetinae) using conventional Giemsa staining and morphometric measurements. C.
Ana Insua, Catherine Thiriot-Quiévreux
openaire   +1 more source

Unexpected Covariances between Shell Growth Parameters are Controlling the Range of Interspecific Variations of Shell shape in the Deep-Sea Clams Genus Calyptogena (Bivalvia: Veneroida)

, 2018
In Bivalves, shell shape descriptors (in particular, elongation E, dissymmetry D, ventral convexity K) are considered functionally-relevant parameters, each of them likely being exposed to specific selective pressures, according to environmental ...
J. Béguinot
semanticscholar   +1 more source

Fusion of radial ribs in Cardiidae (Bivalvia: Veneroida): implications for phylogenetic reconstruction and the study of iterative homology [PDF]

The Paleontological Society Special Publications, 1992
To properly reconstruct the phylogeny of a taxon, it is necessary to determine homologies among taxa. The assumption that repeated structures are iterative homologues has resulted in phylogenetic confusion. Radial ribs have long been used as important taxonomic characters in bivalves, but a cladistic analysis of the Cardiidae has shown that radial ribs
openaire   +1 more source

A NEW SPECIES OF LEPTONACEAN BIVALVE FROM OFF NORTHWESTERN PERU (HETERODONTA, VENEROIDA, LASAEIDAE)

, 1984
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Dinámica poblacional de Donax dentifer (Veneroida: Donacidae) en Bahía Málaga, Pacífico colombiano durante el fenómeno "El Niño" 1997/1998

Revista de Biología Tropical, 2002
Donax dentifer es un bivalvo dominante en comunidades de playa arenosa en la costa del Pacífico colombiano. Se muestreó mensualmente una población de este bivalvo en Bahía Málaga, Pacífico colombiano entre agosto de 1997 y julio de 1998 cuando ocurrió el
José M. Riascos, H. Jörg Urban
doaj  

Polyploidy and Meiosis in the Freshwater Clam Sphaerium striatinum (Lamarck) and Chromosome Numbers in the Sphaeriidae (Bivalvia, Veneroida).

CYTOLOGIA, 1999
Spermatogenetic meiosis as well as a very large number of chromosomes (n=76, 2n=ca. 152) were observed in a North American freshwater clam, Sphaerium striatinum. Sphaeriid species studied to date, except for one species, are all polyploids having high mitotic chromosome numbers, which range from ca. 150 to ca. 247.
openaire   +2 more sources

Size, Density And Distribution Of Tagelus Plebeius (Veneroida, Psammobiidae) In A Sandy Beach, Sao Paulo, Brazil

, 1999
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Abrahão, Jolnnye R., Amaral, A. Cecília Z. (Antonia Cecília Zacagnini)   +1 more
openaire   +1 more source