Allometry
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. The culture of Nile tilapia at different salinities using a biofloc system
RESUMO A influência da salinidade da água no cultivo da tilápia do Nilo com bioflocos foi avaliada por meio de indicadores de qualidade da água, desempenho zootécnico e bem-estar animal. Foram adotados cinco tratamentos, envolvendo salinidades (0, 4, 8, 12 e 16 g L-1) com três repetições. As tilápias foram cultivadas por 90 dias e estocadas em tanqu
Rev. Ciênc. Agron.. Publicado em: 2019-06
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2. Relevance of wood anatomy and size of Amazonian trees in the determination and allometry of sapwood area
RESUMO Processos hidrológicos de povoamentos florestais são predominantemente influenciados pela composição de espécies arbóreas e suas características morfo-fisiológicas. No entanto, existem poucos estudos sobre os padrões anatômicos que determinam o sistema hidráulico de plantas em ecossistemas tropicais. Por isso, nosso objetivo foi o de analis
Acta Amaz.. Publicado em: 2019-03
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3. A giant on the ground: another large-bodied Atractus (Serpentes: Dipsadinae) from Ecuadorian Andes, with comments on the dietary specializations of the goo-eaters snakes
ABSTRACT Body-size is significantly correlated with the number of vertebrae (pleomerism) in multiple vertebrate lineages, indicating that somitogenesis process is an important factor dictating evolutionary change associated to phyletic allometry and, consequently, species fitness and diversification. However, the role of the evolution of extreme body sizes (
An. Acad. Bras. Ciênc.. Publicado em: 17/05/2018
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4. Morphological traits, allometric relationship and competition of two seed-feeding species of beetles in infested pods
Abstract Pair-wise competition produces asymmetric consequences for the interacting species, resulting in reduction of species fitness at the individual scale; however, little is known of the effects of competition on the allometric patterns of insects. In this study, we explored how competition, by means of pod infestation, affects the development of female
Rev. Bras. entomol.. Publicado em: 2017-09
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5. Description of growth and body composition of freshwater angelfish (Pterophyllum scalare) by Gompertz model
ABSTRACT The objective of this study was to describe the growth of freshwater angelfish (Pterophyllum scalare) using the Gompertz model, determining the relative growth and allometric coefficients of body components in relation to body weight and protein weight. Six hundred animals were grown until 233 days of age. Data on chemical composition (water, lipid,
R. Bras. Zootec.. Publicado em: 2017-08
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6. Length/weight relationship and condition factor of Macrobrachium jelskii (Miers, 1877) and M. brasiliense (Heller, 1862) (Decapoda, Palaemonidae) in two locations in the state of São Paulo
Abstract This study describes the weight vs. carapace length relationship and provides the total and monthly condition factor values for populations of Macrobrachium jelskii (Miers, 1977) and M. brasiliense (Heller, 1868) occurring in southeastern Brazil. The biological characteristics were compared and related to the climatic environmental factors between t
Nauplius. Publicado em: 20/07/2017
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7. Growth of the silverside Atherinella brasiliensis in a subtropical estuary with some insights concerning the weight-length relationship
ABSTRACT Specimens of Brazilian silverside (Atherinella brasiliensis, n=9672) with a length range of 1.5 to 14.2 cm were captured in the intertidal areas of the Estuarine Complex of Paranaguá, Brazil, between August 2010 and July 2011. The species’ weight-length relationship was represented by the equation W=0.00533 L3.136 with a slightly positive allomet
An. Acad. Bras. Ciênc.. Publicado em: 20/07/2017
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8. Allometry and sexual dimorphism of the Neotropical freshwater anomuran Aegla marginata Bond-Buckup & Buckup, 1994 (Crustacea, Anomura, Aeglidae)
Abstract This study analyzes ontogenetic allometry in Aegla marginata Bond-Buckup & Buckup, 1994, a freshwater crustacean, in order to evaluate the growth pattern and the presence of sexual dimorphism, using a multivariate approach. The specimens were sampled from streams in Intervales State Park, São Paulo State, Brazil. For each specimen, we measured the
Nauplius. Publicado em: 05/06/2017
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9. A geometric morphometric study of sex differences in the scapula, humerus and ulna of Chaetophractus villosus (Xenarthra, Dasypodidae)
ABSTRACT Sexual differences in some of the components of the pectoral girdle and forelimb of Chaetophractus villosus (Desmarest, 1804) were investigated by means of geometric morphometrics. A total of 15 scapulae (7 males, 8 females) and 50 humeri-ulnae complexes (24 males, 26 females) were examined. No size differences were detected between sexes for any of
Iheringia, Sér. Zool.. Publicado em: 12/01/2017
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10. MANDIBULAR ALLOMETRY IN HYDROCHOERUS HYDROCHAERIS (LINNAEUS, 1766) (HYDROCHERINAE, CAVIIDAE)
ABSTRACT The mammalian masticatory apparatus is a highly plastic region of the skull and thus subjected to singular ontogenetic trajectories. Here we present the first descriptive allometric pattern study of mandible among the capybara (Hydrochoerus hydrochaeris), based on the study of 37 specimens. Allometric changes in shape were analyzed using geometric m
Pap. Avulsos Zool.. Publicado em: 2017
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11. Population structure and allometry of Podocnemis unifilis (Testudines, Podocnemididae) in a protected area upstream Belo Monte dam in Xingu River, Brazil
RESUMO Os quelônios dos rios amazônicos estão crescentemente ameaçados pela perda e alteração do habitat em função da política energética brasileira baseada na construção de barragens hidroelétricas, enquanto estudos populacionais continuam escassos. Nós descrevemos a estrutura da população e estabelecemos relações alométricas corpóreas d
An. Acad. Bras. Ciênc.. Publicado em: 27/11/2015
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12. Allometric relationships among body mass, MUZZLE-tail length, and tibia length during the growth of Wistar rats1
PURPOSE : To investigate allometric relationships among body mass (BM), muzzle-tail length (MTL), and tibia length (TL) in Wistar rats and establish their growth rate change parameters. METHODS : Eighteen male and 18 female Wistar rats were studied from the 3rd to the 21st week of age. BM, MTL, and TL were measured daily, and relative growth was compared u
Acta Cir. Bras.. Publicado em: 2015-11