Results 41 to 50 of about 1,144,491 (344)

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 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

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 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

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

Size, shape, and form: concepts of allometry in geometric morphometrics

open access: yesDevelopment, Genes and Evolution, 2016
Allometry refers to the size-related changes of morphological traits and remains an essential concept for the study of evolution and development.
C. Klingenberg
semanticscholar   +1 more source

Arabidopsis phenotyping through Geometric Morphometrics

open access: yesGigaScience, 2017
AbstractIn recent years, much technical progress has been done regarding plant phenotyping including the model speciesArabidopsis thaliana. With automated, high-throughput platforms and the development of improved algorithms for the rosette segmentation task, it is now possible to massively extract reliable shape and size parameters for genetic ...
Carlos A Manacorda, Sebastian Asurmendi
openaire   +4 more sources

Breaking Symmetry: Fluctuating Asymmetry and Geometric Morphometrics as Tools for Evaluating Developmental Instability under Diverse Agroecosystems

open access: yesSymmetry, 2020
Fluctuating asymmetry (FA), in contrast with other asymmetries, is the bilateral asymmetry that represents small, random developmental differences between right and left sides.
H. Benítez   +6 more
semanticscholar   +1 more source

Geometric Morphometrics of Hominoid Infraspinous Fossa Shape [PDF]

open access: yesThe Anatomical Record, 2014
ABSTRACTRecent discoveries of early hominin scapulae from Ethiopia (Dikika, Woranso‐Mille) and South Africa (Malapa) have motivated new examinations of the relationship between scapular morphology and locomotor function. In particular, infraspinous fossa shape has been shown to significantly differ among hominoids.
Green, D.   +4 more
openaire   +3 more sources

Geometric morphometrics of endophytic oviposition traces of Odonata (Eocene, Argentina) [PDF]

open access: yesRoyal Society Open Science, 2020
The insertion of the Odonata ovipositor in the plant tissue generates a scar that surrounds the eggs (trace). In insects, individual egg traces are known to vary in size, but their variation in individual shape is mostly unknown.
Eugenia Romero-Lebrón   +2 more
doaj   +1 more source

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