Allometric Relationships
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Relative growth and population dynamics of Macrobrachium iheringi (Decapoda, Palaemonidae)
Abstract During the ontogenetic development of crustaceans, the relative growth of some structures may change, especially during the transition from juvenile to adult. This study describes the relative growth of body structures of Macrobrachium iheringi, and provides information on its population dynamics, such as structure, fecundity, and morphological sexu
Pap. Avulsos Zool.. Publicado em: 20/05/2019
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2. Allometric models to estimate tree height in northern Amazonian ecotone forests
RESUMO Modelos alométricos que definem o relacionamento entre diâmetro do tronco e a altura total da árvore na bacia amazônica são importantes porque refinam as estimativas de fluxo e estoques de carbono arbóreo na região. Este estudo testou diferentes modelos alométricos para estimar a altura total de árvores a partir do diâmetro do tronco em uma
Acta Amaz.. Publicado em: 06/05/2019
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3. Sexual dimorphism in the catfish Genidens genidens (Siluriformes: Ariidae) based on otolith morphometry and relative growth
RESUMO Genidens genidens é uma espécie suscetível a declínios populacionais, tendo em vista as peculiaridades de sua reprodução. Diferenças morfométricas entre os sexos são observadas na literatura, e essas diferenças também devem ser evidentes no desenvolvimento dos otólitos. O padrão de crescimento é uma das características biológicas mais
Neotrop. ichthyol.. Publicado em: 25/04/2019
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4. 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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5. Length-weight relationship and condition factor of Macrobrachium amazonicum (Heller, 1862) (Decapoda, Palaemonidae) from a reservoir in Bahia, Brazil
ABSTRACT Macrobrachium amazonicum (Heller, 1862) is a freshwater prawn occurring in rivers and reservoirs of Central and South America. Given its broad geographical distribution, the species shows great intraspecific morphological, reproductive, physiological and ecological plasticity. Furthermore, it also stands out for its economic importance, especially i
Nauplius. Publicado em: 2015-12
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6. 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
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7. Population biology of the ‘uçá'-crab, Ucides cordatus(Linnaeus, 1763) (Brachyura: Ucididae), in mangroves of the Joanes River, Bahia State, Brazil
ABSTRACTThis study evaluated the population structure, relative growth and morphological maturity size in Ucides cordatus in the Joanes River, Bahia State (Brazil). Crabs were sampled in a fragmented and human-altered mangrove ecosystem in a Brazilian Environmental Protected Area (EPA). A total of 431 crabs were sampled (265 males and 166 females) between Se
Nauplius. Publicado em: 2015-06
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8. Demography of the endangered tree species Ocotea porosa (Lauraceae) along a gradient of forest disturbance in southern Brazil
Ocotea porosa (Ness) Barroso (Lauraceae), a typical tree of the southern Atlantic Forest in Brazil, was heavily exploited for timber in the last century. With the aim of examining the status of the remaining populations, we surveyed five forest fragments in the state of Paraná, in southern Brazil, and evaluated whether disturbances caused by selective loggi
Acta Bot. Bras.. Publicado em: 2014-12
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9. Ontogeny, allometry and architecture of Psychotria tenuinervis (Rubiaceae)
We evaluated the ontogeny of the understory shrub Psychotria tenuinervis Müll.Arg., considering morphological and morphometric characters. Four ontogenetic stages were identified: seedling, juvenile, immature and adult (vegetative and reproductive phases). Size measurements and allometric relationships of the stem and crown were compared between the immatur
Acta Bot. Bras.. Publicado em: 2013-12
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10. Allometry as evidence of sexual selection in monochromatic birds: the case of the Coscoroba Swan (Anseriformes: Anatidae)
The Coscoroba Swan, Coscoroba coscoroba (Molina, 1782), is a poorly known aberrant Anserine endemic to South America. We captured adult birds (189 male, 157 female) from the largest population in Brazil at the Taim Ecological Reserve, State of Rio Grande do Sul, Brazil. Different patterns between sexes can reflect differences in selection, and positive allom
Zoologia (Curitiba). Publicado em: 2013-08
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11. Correlation between the length and weight of Arius maculatus off the southwestern coast of Taiwan
In this study, Arius maculatus were collected using the samples caught by bottom trawling off the southwestern coast of Taiwan. Length-weight and length-length, fork (FL), standard (SL) and total (TL) lengths, relationships were determined. The relationships between the lengths were all significantly linear (p<0.01), the b value in the length-weight relation
Braz. arch. biol. technol.. Publicado em: 2012-10
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12. Passifloras silvestres: área foliar, relações alométricas e potencial como porta-enxerto do maracujazeiro-amarelo / Wild passifloras: leaf area, allometric relationships and potential as a rootstock of yellow passion
The objectives of this work were to develop linear models that allow to predict leaf area of P. alata, P. coccinea, P. gibertii, P. ligularis, P. misera, P. mucronata, P. nitida and P. setacea by using simple linear measurements; to quantify growth traits and allometric relationships of P. cincinnata, P. edulis f. flavicarpa, P. gibertii, P. morifolia and P.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2011