Essays about: "morphometric"

Showing result 11 - 15 of 22 essays containing the word morphometric.

  1. 11. Study of the Taxonomy and the Inter and Intra Specific Variability of Phacopidae from the Lower Devonian of Algeria: Morphometric Approach and Meaning.

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Gauthier Hainaut; [2015]
    Keywords : Paleontology; Trilobite; Devonian; Biometry; Morphometry; Covariance;

    Abstract : An Algerian Phacopid fauna, described by Lemaître in 1952, is reexamined here. Species arereevaluated in order to be in agreement with modern taxonomy. To characterize the size and shape of our specimens, as well as inter- and intraspecific variations, a morphometric analysis was performed. Only holaspids were analyzed. READ MORE

  3. 12. Poor welfare or future investment? Different growth pattern of broiler breeders

    University essay from Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

    Author : Andreas Calais; [2015]
    Keywords : Chicken; broiler breeder; welfare; stress; hunger; feed restriction; skip-a-day; morphometrics.;

    Abstract : The parental stock of meat type chickens (broiler breeders) are commonly feed restricted to decrease their rapid growth and the issues associated with it. Among these birds, chronic hunger and stress are the most prominent welfare concerns and mass heterogeneity within flocks a major management challenge. READ MORE

  4. 13. Real-time fish type recognition in underwater images for sustainable fishing

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Fritjof Jonsson; [2015]
    Keywords : ;

    Abstract : It has been investigated if it is possible to selectivly catch farmed salmon (Salmo salar L., 1758) and sea trout (Salmo trutta L., 1758) without disturbing the wild fish. A image analysis software that can separate wild from farmed salmon and salmon from sea trout has been developed. READ MORE

  5. 14. Taxonomic revision of the genus Chamaecrista (Fabaceae) in Ecuador

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Marcus Lewin; [2015]
    Keywords : taxonomy; Fabaceae; South America; Ecuador; plant systematics; taxonomi; Fabaceae; ärtväxter; Sydamerika; Ecuador; växtsystematik;

    Abstract : A revision of the genus Chamaecrista (Leguminosae) in Ecuador is presented. The work is based on morphometric studies of herbarium material and information from the literature and the Internet. The purpose of the study was to get a better knowledge of the distribution, taxonomic status and conservation of Chamaecrista in Ecuador. READ MORE

  6. 15. Disparity of Early Cretaceous Lamniformes sharks

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Fredrik Söderblom; [2015]
    Keywords : Lamniformes; disparity; Early Cretaceous; morphology; morphometric; Lamniformes; disparitet; tidig krita; morfologi; morfometri;

    Abstract : The geological range of lamniform sharks stretches from present day species such as Carcharodon carcharias (great white shark) back to the at the moment oldest undoubted fossil finds during the Early Cretaceous. In this paper a geometric morphometric analysis was performed on images of Early Cretaceous lamniform teeth collected from published literature in order to examine the change in disparity (range of morphological variation within a group) throughout the time period. READ MORE