SEM images reveal intraspecific differences in egg surface properties of common nase ( Chondrostoma nasus L.)

Comparative osteology of Chondrostoma orientale and C. nasus

Comparison of morphological structures is a key element in evolutionary biology and taxonomy, as well as in the studies concerning variation and biodiversity either at interspecific or intraspecific levels. This study aimed to compare the bony structures of Chondrostoma orientale and C. nasus. For this purpose, three specimens of C. orientale from the Kor River (passing through Iran), and five ...

Surface Reconstruction From AFM and SEM Images

Surface Approximation from Industrial SEM Images

We are currently involved in an industrial project to recover depth information from stereo image pairs retrieved using a scanning electron microscope, (SEM). Feature based approaches to stereo provide accurate disparity estimations, however the quantity of estimates recovered is small (typically 1-2% of the image). If a continuous approximation to the surface is to be reconstructed, as request...

Effect of initial size on daily growth and survival in freshwater Chondrostoma nasus larvae: a field survey.

Effects of initial size on the growth and survival of a freshwater fish, Chondrostoma nasus, were tested in a field survey, where individually tagged larvae were introduced into a potential nursery habitat. Characteristics of individual daily growth trajectories were utilized as a basis to explain growth, as well as survival patterns, in relation to ontogeny. Initial size only affected growth r...

Genomic Porosity between Invasive Chondrostoma nasus and Endangered Endemic Parachondrostoma toxostoma (Cyprinidae): The Evolution of MHC IIB Genes

Two cyprinid species, Parachondrostoma toxostoma, an endemic threatened species, and Chondrostoma nasus, an invasive species, live in sympatry in southern France and form two sympatric zones where the presence of intergeneric hybrids is reported. To estimate the potential threat to endemic species linked to the introduction of invasive species, we focused on the DAB genes (functional MHC IIB ge...