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Registros recuperados: 14
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Arabian Oryx (Oryx leucoryx) Trachea: a Descriptive and Morphometric Analysis 77
Al-Zhgoul,Mohammad Borhan; Dalab,Abdul Hafeed S; Abdulhakeem,ElJarah; Ismail,Zuhair Bani; Thanain,Al Thanain.
The objective of this study was to report the distinctive anatomical and histological features of the trachea of the Arabian Oryx (Oryx leucoryx). The number of tracheal rings and tracheal length were measured. The diameter, thickness and cross sectional area of tracheal ring were determined at four tracheal regions (cranial cervical (CCR), middle cervical, thoracic inlets and intra thoracic). Tracheal rings were also collected for histological analysis. The mean length of the trachea was 54.1cm ± 0.73, while the number of tracheal rings varied from 50-51. Tracheal ring measurements (diameter, thickness and cross sectional area) were smallest at the thoracic inlet region. The ratio of the outer transverse to outer vertical and inner transverse to inner...
Tipo: Journal article Palavras-chave: Oryx leucoryx; Trachea; Descriptive analysis; Morphometric analysis.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300005
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Castes and asynchronous colony cycle in Polybia bistriata (Fabricius) (Hymenoptera: Vespidae) 82
Oliveira,Otavio A.L. de; Noll,Fernando B.; Mateus,Sidnei; Gomes,Bruno.
Neotropical swarm-founding wasps, the Epiponini, are an outstanding group of social insects whose societies are polygynic and complex nest builders. Caste dimorphism in these wasps ranges from incipient to highly distinct. Morphometric analyses of nine body parts, ovarian status, relative age and development of the 5th gastral sternite gland (Richards´ gland) of Polybia bistriata Fabricius were undertaken in order to estimate caste differentiation in nine colonies. Morphological and physiological data were used in multivariate analyses in order to evaluate the level of discrimination between inseminated and non-inseminated females. Clear physiological differences were found: queens had highly developed ovaries and they were inseminated, and workers had...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Caste difference; Social wasp; Morphometric analysis.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000600001
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Diet is correlated with otolith shape in marine fish 5
Mille, Tiphaine; Mahe, Kelig; Cachera, Marie; Villanueva, Ching-maria; De Pontual, Helene; Ernande, Bruno.
Previous studies have shown that food amount influence fish otolith structure, opacity and shape and that diet composition has an effect on otolith chemical composition. This study investigated the potential correlation between diet and otolith shape in 5 wild marine fish species by addressing 4 complementary questions. First, is there a global relationship between diet and otolith shape? Second, which prey categories are involved in this relationship? Third, what are the respective contributions of food quantity and relative composition to diet–otolith shape co-variation? Fourth, is diet energetic composition related to otolith shape? For each species, we investigated how otolith shape varies with diet. These questions were tackled by describing diet in...
Tipo: Text Palavras-chave: Fourier analysis; English Channel; Interspecific; Morphometric analysis; Otolith growth; Saccular otolith; Stomach contents.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00345/45639/45269.pdf
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Histochemistry and Morphometric Analysis of Muscle Fibers from Patients with Duchenne Muscular Dystrophy (DMD) 77
Cavalcanti,George Maciel; Oliveira,André de Sá Braga; Assis,Thiago de Oliveira; Chimelli,Leila Maria Cardão; Medeiros,Paloma Lys de; Mota,Diógenes Luís da.
The aim of the study was to analyze the muscle fibers by histochemistry and morphometric methods from patients with Duchenne muscular dystrophy (DMD). Muscle biopsies were taken from the vastus lateralis muscle of five boys between 13 and 15-years of age, with clinical diagnosis of DMD. The histochemistry was performed using myofibrillar ATPases (9.6, 4.6 and 4.3). To morphometrical analysis a computerized semiautomatic system and software Image-Lab was used. ATPase staining showed atrophy of muscle fibers. Fibrosis and adipose deposition occurred in variable degree depending of muscular involvement. The morphometrical analysis showed an increase of size (percentage) to type I fiber than other types in all patients. Furthermore, the type I fiber had a...
Tipo: Journal article Palavras-chave: Histochemistry analysis; Morphometric analysis; Vastus lateralis muscle; Duchenne muscular dystrophy.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300046
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Maternal Chronic Stress Induces Premature Telencephalic Vesicles Development 77
Mugnaini,María Teresa; Soñez,Carlos Alberto; Rolando,Alicia Nélida; Romanini,María Cristina; Bozzo,Aída Andrea; Pastorino,Isabel Cecilia; Gauna,Héctor Fernando; Paz,Dante Agustín.
Exposure to physical or psychological stress causes brain damage ranging from minimal behavioural alterations to different neurodegeneration degrees implying the overproduction of oxidative-nitrosative compounds, apoptosis and cell proliferation. In the present investigation, we have analysed the effect of the chronic stress by immobilisation applied to pregnant rats over the forebrain development of the embryos. The morphometric analyses showed an accelerated evagination of the telencephalic vesicles in 12 days old fetus from stressed mothers. The forebrain perimeter and the thickness showed significative differences in relation to age-matched controls. This stress effect seemed reversible during subsequent gestational stages. This is the first work...
Tipo: Journal article Palavras-chave: Telencephalic vesicle; Chronic stress; Morphometric analysis; Rats.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500001
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Morfometría del delfin nariz de botella (Tursiops truncatus), en la costa norte de la zona central de Cuba. 20
Blanco, M.; Olaechea, A..
Análisis de las comparaciones obtenidas entre las diferentes medidas. Los resultados indican que en la mayoría de los casos, existe correlación significativa entre el largo estándar y las restantes medidas, tanto para las tres zonas de hembras y machos. Otro resultado es que existen diferencias entre los largos promedios y algunas medidas para las tres localidades, al compararse tanto las hembras y como los machos.
Tipo: Theses and Dissertations Palavras-chave: Morphometric analysis; Marine mammals.
Ano: 2000 URL: http://hdl.handle.net/1834/4898
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Morphological and genetic perspectives of hybridization in two contact zones of closely related species of Petunia (Solanaceae) in southern Brazil 39
Teixeira,Marcelo C.; Turchetto,Caroline; Hartke,Sara; Schnitzler,Carolina K.; Freitas,Loreta B..
ABSTRACT Interspecific hybridization has several consequences for parental species, from blurring species limits to the emergence of new taxa. Petunia axillaris and P. exserta occur in sympatry in southernmost Brazil and naturally hybridize despite their different pollination syndromes and habitat requirements. We employed genetic and morphological analyses to characterize two contact zones between the species with the aim of determining the effect of interspecific hybridization. Microsatellite loci and a morphometric evaluation of the corolla shape were used to classify individuals based on their origin as pure parental or hybrids. Corolla color was used to classify individuals a priori (white, red or intermediate, for P. axillaris, P. exserta or hybrid,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Genetic diversity; Hybridization; Introgression; Morphometric analysis; Petunia.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400734
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Morphological variability of the shape of striped red mullet Mullus surmuletus in relation to stock discrimination between the Bay of Biscay and the eastern English Channel 5
Mahe, Kelig; Villanueva, Ching-maria; Vaz, Sandrine; Coppin, Franck; Koubbi, Philippe; Carpentier, Andre.
Striped red mullet Mullus surmuletus L. 1758 is an economically important species in the Mediterranean Sea and in the northern Atlantic Ocean, where it is exploited from the Bay of Biscay to the southern North Sea (ICES, 2010). In Atlantic waters, there are two main areas where this species is caught, the Bay of Biscay and the eastern English Channel. This species was initially exploited by the Spanish fleets along the Spanish coast inside the Bay of Biscay. Originally considered as valuable by-catch (Marchal, 2008), the growing exploitation ofM. surmuletus and a conspicuous increase in landings in the English Channel and the southern North Sea by French, English and Dutch fleets have been observed from the 1990s onwards. This was attributed to an increase...
Tipo: Text Palavras-chave: Stock identification; Head morphology; Fish body shape; Truss model; Morphometric analysis.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00185/29587/28050.pdf
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Morphometric analysis of extant Nephrops norvegicus (Linné, 1758) and Solenocera membranacea (Risso, 1826) applied to systematic palaeontology of fossil decapod crustaceans 16
Damiano, Giuseppina; Garassino, Alessandro; Scali, Stefano; Teruzzi, Giorgio.
The study of fossil decapods have shown the need for reliable statistics to document the value of the characters considered. Morphometric data, however, are usually absent in scientific papers on living decapod crustaceans since neontological systematists normally analyze internal organs and tissues not available in fossils. A series of morphometric data for two extant species have been processed statistically in order to obtain numerical models that could be applied to fossil species showing morphological affinities.
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Decapoda; Morphometric analysis.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/534311
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Morphometric changes in the hoof capsule of Criollo foals from birth to weaning 65
Souza,João Ricardo Malheiros de; Pimentel,Anelise Maria Hammes; Folle,Vinícius Azevedo; Pfeifer,João Pedro Hübbe; Schuster,Aline Bacchieri Gallo; Segabinazzi,Lorenzo Garrido Teixeira Martini; Lau,Lucas Correa; Martins,Charles Ferreira.
ABSTRACT: South America has numerous Criollo horse breeding farms; however, information on foal hoof growth is still limited and identifying the ideal periods to apply corrective trimming is a frequent concern for horse owners. In the present study, a morphometric analysis of hoof growth was performed on 46 Criollo foals from birth to weaning (0-8 months). Results showed that hoof growth rate was higher in the first four months followed by a decrease until the eighth month. Average growth rate of the hoof was 0.21cm per month, whereas that of the heel was 0.14cm per month. However, no significant differences were observed between medial and lateral heel length or between limbs. Coronary band perimeter and solar width showed an average increase of 0.97cm...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Foals; Hoof capsule; Morphometric analysis; Long-term study.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700606
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Relaciones morfométricas de la tortuga carey (E. imbricata) con vista a su aplicación en el manejo 20
Medina, Y.; Moncada, F.; Nodarse, G..
A partir de análisis morfométricos se determinó la relación existente entre los escudos dorsales con el largo recto del caparazón (LRC) para 44 ejemplares de tortuga carey (Eretmochelys imbricata), provenientes de los dos sitios de capturas tradicionales en Cuba (Nuevitas y Cocodrilo) que operaron hasta el 2008. Se tomaron dos mediciones por escudos, ancho del escudo (AE) y largo del escudo hasta la línea de imbricación (LI) para los cuatro escudos del lado izquierdo (c1-c4) y los cinco vertebrales (v1-v5). Se encontró una relación estadísticamente significativa para todos los escudos medidos tanto en la relación (LRC-AE) como (LRC-LI), p < 0,05, resultando estas moderadamente fuertes. Las correlaciones positivas entre los escudos y los largos rectos...
Tipo: Journal Contribution Palavras-chave: Shells; Morphometric analysis; Marine turtles.
Ano: 2011 URL: http://hdl.handle.net/1834/4633
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Structural features of the epididymal region of the domestic duck (Anas plathyrynchos) 62
Simões,Karina; Orsi,Antônio Marcos; Artoni,Silvana Martinez Baraldi; Cruz,Claudinei da; Schimming,Bruno César; Pinheiro,Patrícia Fernanda Felipe.
The epididymal region of the domestic duck is composed by efferent ductules, whose histotopology was characterized by the proximal and distal ductules and sequentially by the epididymal duct. The epithelial lining of the efferent ductules was ciliated pseudostratified and formed by columnar cells. Also the ducts epididymidis epithelium was pseudostratified but non-ciliated. Concerning the histomorphometric analysis, the epithelial height mean was significantly greater in the distal efferent ductules, differing from the lower epithelium height mean observed in proximal efferent ductules and epididymal duct. The maximum and minimum diameter mean were significantly greater in the proximal efferent ductules, comparatively to the same diameter means of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epididymal region; Birds; Morphology; Morphometric analysis.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000200003
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Variabilidade intra-específica em cinco populações de Oncidium varicosum Lindl. (Orchidaceae -- Oncidiinae) em Minas Gerais 88
CARDIM,DARUSKA CAVALCANTE; CARLINI-GARCIA,LUCIANA APARECIDA; MONDIN,MATEUS; MARTINS,MARINA; VEASEY,ELIZABETH ANN; ANDO,AKIHIKO.
Com o objetivo de estudar a variabilidade genética intra-específica em Oncidium varicosum Lindl. (Orchidaceae - Oncidiinae), foram avaliadas cinco populações de Minas Gerais, coletadas em Alfenas (AL), Estiva (ES), Pedra do Coração (PC), Pedra Branca (PB) e Pouso Alegre (PA). Foram considerados 22 caracteres florais, medidos a partir de "vouchers" (fichas florais), empregando-se métodos estatísticos univariados e multivariados (análise discriminante canônica - CDA e análise de agrupamento a partir de distância de Mahalanobis). Houve diferença significativa (p < 0,05) entre populações, pelo teste F, para 13 caracteres. O primeiro eixo canônico separou a população PA de PB e de PC. Os indivíduos de PA são menores que os de PC, que são menores que os de...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Orchidaceae; Oncidium varicosum; Morphometric analysis; Genetic variability; Multivariate analysis.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000500010
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Variación espacio-temporal de grupos morfo-funcionales de macroalgas en pastos marinos al norte de Ciego de Ávila, Cuba 20
Avila Alonso, D.; Guimaraes Bermejo, M.; Cárdenas Ortiz, R..
Se determinó la variación espacio-temporal de la biomasa de los grupos morfo-funcionales de macroalgas y su relación con las variables ambientales: temperatura, salinidad, oxígeno disuelto y precipitaciones en dos localidades (laguna y playa) de pastizales al Norte de Ciego de Ávila desde marzo de 2010 a febrero de 2011. Las colectas se realizaron utilizando marco cuadrado de 25 cm de lado y se tomaron 15 unidades de muestreo en cada sitio. Se determinaron cinco grupos morfo- funcionales: foliosas y globosas, coriáceas, filamentosas, corticadas y calcáreas articuladas, presentando variaciones espacio- temporales los dos últimos. La laguna tuvo menor diversidad algal (13 géneros) y mayor biomasa total determinado por el aporte de las calcáreas...
Tipo: Journal Contribution Palavras-chave: Biomass; Morphometric analysis; Algae; Seagrass; Environmental factors.
Ano: 2013 URL: http://hdl.handle.net/1834/4929
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