Results 21 to 30 of about 20,976 (294)

Biometry traits and geometric morphometrics in sea bass (Dicentrarchus labrax) from different farming systems

open access: yesItalian Journal of Animal Science, 2010
The effect of the farming system on biometry traits and dressing out yield were inves- tigated in market-size European sea bass (Dicentrarchus labrax) cultured extensively or intensively in sea cages or land-based basins.
Emilio Tibaldi   +3 more
doaj   +1 more source

Geometric morphometric methods for identification of oyster species based on morphology [PDF]

open access: yesBiodiversity Data Journal
Both genetic and environmental factors affect the morphology of oysters. Molecular identification is currently the primary means of species identification, but it is inconvenient and costly.
Qian Liu   +7 more
doaj   +3 more sources

Geometric Morphometric Analysis of Genus Chaetocnema (Coleoptera: Chrysomelidae: Alticini) with Insights on Its Subgenera Classification and Morphological Diversity

open access: yesDiversity, 2023
In taxonomy, qualitative methods are commonly used to analyze morphological characters, which can lead to dramatic changes in higher taxa. Geometric morphometrics (GM) has proven to be useful for discriminating species in various taxonomy groups. However,
Mengna Zhang   +8 more
doaj   +1 more source

Asymmetry of Caddo Ceramics from the Washington Square Mound Site: An Exploratory Analysis [PDF]

open access: yes, 2017
While pursuing a study of 3D geometric morphometrics for ceramic burial vessels that often articulate with the Native American Graves Protection and Repatriation Act (NAGPRA) from the ancestral Caddo region, there have been no shortage of potentially ...
Selden, Robert Z., Jr.
core   +2 more sources

Geometric morphometric analysis of projectile points from the Southwest United States

open access: yesPeer Community Journal, 2023
Traditional analyses of projectile points often use visual identification, the presence or absence of discrete characteristics, or linear measurements and angles to classify points into distinct types.
Bischoff, Robert J.
doaj   +1 more source

Tools for quantitative form description : an evaluation of different software packages for semi-landmark analysis [PDF]

open access: yes, 2015
The challenging complexity of biological structures has led to the development of several methods for quantitative analyses of form. Bones are shaped by the interaction of historical (phylogenetic), structural, and functional constrains.
Botton-Divet, Léo   +4 more
core   +5 more sources

Translational genetic modelling of 3D craniofacial dysmorphology: elaborating the facial phenotype of neurodevelopmental disorders through the prism of schizophrenia [PDF]

open access: yes, 2017
Purpose of Review: In the context of human developmental conditions, we review the conceptualisation of schizophrenia as a neurodevelopmental disorder, the status of craniofacial dysmorphology as a clinically accessible index of brain ...
Bowman, Adrian W.   +3 more
core   +1 more source

Studying avian encephalization with geometric morphometrics [PDF]

open access: yesJournal of Anatomy, 2016
AbstractEncephalization is a core concept in comparative neurobiology, aiming to quantify the neurological capacity of organisms. For measuring encephalization, many studies have employed relative brain sizes corrected for expected allometric scaling to body size.
Jesús, Marugán-Lobón   +2 more
openaire   +2 more sources

Do cladistic and morphometric data capture common patterns of morphological disparity? [PDF]

open access: yes, 2015
The distinctly non-random diversity of organismal form manifests itself in discrete clusters of taxa that share a common body plan. As a result, analyses of disparity require a scalable comparative framework.
Adams   +40 more
core   +5 more sources

Wings of Coenagrion puella vary in shape at the northern range margin (Odonata: Coenagrionidae) [PDF]

open access: yes, 2008
A previous study has shown that wing size in Coenagrion puella varied considerably along a latitudinal gradient in the UK. Using landmark data from wing images, patterns of shape variation were also determined along the same transect by geometric ...
Harvey, IF, Hassall, C, Thompson, DJ
core   +1 more source

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