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| Registros recuperados: 58 | |
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| Massi,Klécia Gili; Franco,Augusto César. |
| ABSTRACT Cerrado tree species can survive fire by resprouting. Generally, large and less damaged plants produce new branches and leaves from stem buds (aerial), whereas small and highly injured individuals would resprout from the stem base or from underground organs (basal). We compared the three most common Cerrado woody plant species in a savanna area of the IBGE Ecological Reserve, Brasília, Brazil, aiming to verify if the resprouting strategy (aerial or basal) differed between species and if that was related to plant size. Guapira noxia had small-sized plants, a higher percentage of trunk charred and more individuals with basal resprouting, while Eriotheca pubescens had large-sized plants with a greater intensity of aerial resprouting, Basal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Disturbance; Fire; Resprout; Size; Tree. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400693 |
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| AVIARA, NDUBISI A.; iyilade, Idowu A.; Aremu, Ademola K; Oyeniyi, Samuel K. |
| The effect of moisture content on some physical properties of Bush Mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52% - 20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in the above range. Nut sphericity decreased from 76.2% to 69.5% as moisture content increased. One thousand seed weight, bulk density, true density and angle of repose increased from 6.634 to 9.158 kg, 756.7 to 1095 kgm-3, 984.4 to 1095kgm-3 and 25.3 to 38.9o respectively, in the above moisture range. Static coefficient of friction on different surfaces increased in the order of fiber glass (0.378 to 0.394),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Moisture content; Dika nut; Irvingia gabonensis; Size; Shape; Gravimetric; Frictional properties. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5089 |
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| CORRÊA,DANIELE N.; QUINTELA,FERNANDO M.; LOEBMANN,DANIEL. |
| ABSTRACT The snakes Erythrolamprus jaegeri jaegeri and Erythrolamprus poecilogyrus sublineatus are sympatric and syntopic in the coastal region of southern Brazil. Herein, we analyzed the diet composition to evaluate the niche breadth and the prey selection by both species. We examined 192 specimens, and analysis of stomach contents revealed that both species predominantly consume anurans. However, the diet of E. j. jaegeri consists mainly of fish and amphibians, whereas that of E. p. sublineatus is broader, including fish, amphibians, reptiles and mammals. The Standardized Levins Index presented lower values for E. j. jaegeri (BA = 0.17) than for E. p. sublineatus (BA = 0.61), evidencing specialist and generalist strategies for each species, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Ophidians; Prey; Size; Niche. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100293 |
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| Léchaudel,Mathieu; Joas,Jacques. |
| Mango, a tropical fruit of great economic importance, is generally harvested green and then commercialised after a period of storage. Unfortunately, the final quality of mango batches is highly heterogeneous, in fruit size as well as in gustatory quality and postharvest behaviour. A large amount of knowledge has been gathered on the effects of the maturity stage at harvest and postharvest conditions on the final quality of mango. Considerably less attention has been paid to the influence of environmental factors on mango growth, quality traits, and postharvest behaviour. In this paper, we provide a review of studies on mango showing how environmental factors influence the accumulation of water, structural and non-structural dry matter in the fruit during... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental conditions; Fruit load; Irrigation; Shelf life; Size; Taste. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400004 |
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| Ywassaki,Larissa Akemi; Canniatti-Brazaca,Solange Guidolin. |
| Citric fruits - in natura, as frozen pulp or even as juice - are one of the most important Brazilian exportation products. They are a source of ascorbic acid - a potent antioxidant, and pectin, which is used in the food industry and is an important dietary fiber. This project aims to quantify ascorbic acid and pectin contents in citric fruits, commercial oranges and tangerines, comparing them in sizes and varieties. Ascorbic acid amount was measured in juice comparing sizes, varieties and storage conditions, using a tritimetric method with 2.6-dichlorobenzenoindophenol indicator. Total and soluble pectin in each part of the fruits (peel, albedo, pulp and juice) were quantified using the polygalacturonic acid as a standard. Differences were found between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orange; Tangerine; Pectin; Ascorbic acid; Composition; Size. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000200007 |
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| MOURÃO, G.; CAMPOS, Z.. |
| A Embrapa Pantanal vem há quase décadas estudando o jacaré-do-Pantanal, Caiman crocodilus yacare, no Pantanal, principalmente na região da Nhecolândia, enfocando a conservação e manejo sustentado da espécie. Vários trabalhos foram desenvolvidos sobre aspectos populacionais dos jacarés na área de lagos e rios intermitentes, desta região. Entretanto, é sabido que o habitat influencia na densidade (Coutinho & Campos, 1995; Mourão et al., 2000), na estrutura de tamanho e razão sexual (Brazaitis, et al., 1990; Campos et al., 1995), no potencial reprodutivo (Campos, 1993; Campos & Magnusson, 1995), e no movimento (Campos et al., 2003). O conhecimento das populações de jacarés em diferentes regiões do Pantanal permitirá uma base de dados populacionais da... |
| Tipo: Folhetos |
Palavras-chave: Yacare; Sex; Size; Ecologia; Jacaré; Sexo; Tamanho; Pantanal; Ecology. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811629 |
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| MOURÃO, G. de M.; CAMPOS, Z. M. da S.. |
| Nos últimos anos, a Embrapa Pantanal vem conduzindo um projeto de ecologia e manejo do jacaré-do-Pantanal, Caiman crocodilus yacare, e em 1995 um experimento de extração foi executado visando viabilizar a utilização bio econômica da espécie. O critério da extração foi amplamente embasado no tamanho e sexo dos jacarés, isto é, indivíduos maiores que 90 cm de comprimento rostro-anal foram retitados da população estudada (Coutinho, 2000). Entretanto, é sabido que as estruturas de tamanho e razão sexual das populações de jacarés variam amplamente entre habitats do Pantanal (Brazaits et al., 1990; Campos et al., 1995), e as informações disponíveis ainda sejam esparsas e incompletas. O Parque Nacional do Pantanal (PNP) é uma unidade de conservação do Ibama, está... |
| Tipo: Folhetos |
Palavras-chave: Yacare; Sex; Size; Ecologia; Jacaré; Sexo; Tamanho; Pantanal; Ecology. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810929 |
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| Dimeet, Joel. |
| Une évaluation du gisement d'oursins du golfe du Morbihan a été réalisée en 2008.Six stations ont été échantillonnées : Stibiden, Roc'h Vihan, Port Blanc, Kerners, Hent tenn et Brannec, une station de plus que les années précédentes Pour les cinq stations communes à 2007 et 2008 l'augmentation de la population d'oursins est de 5 % en global et de 25% pour les individus commerciaux. Les densités totales varient entre 87 et 136 individus pour 100 m2 et les densités commerciales entre 56 et 87 oursins pour 100m2. La densité maximale d'oursins commerciaux a été observée à Port blanc. Les tailles des oursins s'échelonnent entre 22mm et 88mm. 63% des oursins échantillonnés avaient une taille supérieure à la taille de première commercialisation, soit 55mm. |
| Tipo: Text |
Palavras-chave: Density; Size; Sampling; Survey; Gulf of Morbihan; Layer; Urchin; Densité; Taille; Évaluation; Échantillonnage; Golfe du Morbihan; Gisement; Oursin. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/rapport-6775.pdf |
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| Fleury, Pierre-gildas; Mingant, Christian; Castillo, A. |
| In order to have a better understanding of recessing in great scallop, Pecten maximus and consequently the causes of mortality at reseeding, this study has monitored, at different seasons, the dispersion and recessing of different sizes of juveniles (about 15, 30 and 45 mm, called small, medium and large) after seeding. Moreover, the aim was to see when small spat (15 mm) could be seeded, and thus reduce the costs of intermediate culture. Three monitoring approaches were used together: (1) continual observations by remote video camera, of a defined area (less than 1 m2) containing 10 scallops from each size group; (2) daily monitoring of behaviour with divers along three bottom lines, with 20 × 1 m2 plots each and nine marked scallops per plot; and (3) the... |
| Tipo: Text |
Palavras-chave: Behaviour; Great scallop (Pecten maximus); Season; Seeding; Size; Vitality of spat. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00326/43752/43284.pdf |
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| Simon, Victor; Elleboode, Romain; Mahe, Kelig; Legendre, Laurent; Ornelas-garcia, Patricia; Espinasa, Luis; Retaux, Sylvie. |
| Background Life in the darkness of caves is accompanied, throughout phyla, by striking phenotypic changes including the loss or severe reduction in eyes and pigmentation. On the other hand, cave animals have undergone constructive changes, thought to be adaptive, to survive in this extreme environment. The present study addresses the question of the evolution of growth in caves, taking advantage of the comparison between the river-dwelling and the cave-dwelling morphs of the Mexican tetra, Astyanax mexicanus. Results A sclerochronology approach was undertaken to document the growth of the species in these two very distinct habitats. Scales from 158 wild Astyanax mexicanus specimens were analyzed from three caves (Pachón, Tinaja and Subterráneo) and two... |
| Tipo: Text |
Palavras-chave: Cave; Fish; Size; Age; Scales; Growth; Food; Comparative biology; Life history traits. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00412/52337/53124.pdf |
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| Azema, Patrick; Maurouard, Elise; Lamy, Jean-baptiste; Degremont, Lionel. |
| Mortality associated with ostreid herpesvirus 1 (OsHV-1) has significantly impacted Crassostrea gigas farmers all around the world. Although selective breeding programs to improve OsHV-1 resistance can significantly reduce the mortality rate below 20%, husbandry practices have also been one way to limit or decrease mortality. The main objectives of this study were to describe the influence of two husbandry practices on OsHV-1-induced mortality in C. gigas spat and how different family lines respond to husbandry practices to gain a better understanding of the potential benefits of breeding management as a tool to adapt to improved practices. The first analysis investigated the importance of the size of C. gigas when challenged with OsHV-1 for the first... |
| Tipo: Text |
Palavras-chave: Mortality; Crassostrea gigas; Size; OsHV-1; Growing height. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00366/47717/47758.pdf |
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| Durieux, Eric; Meekan, Mark G.; Ponton, Dominique; Vigliola, Laurent. |
| Six cohorts of the silver-stripe round herring Spratelloides gracilis, a fast-growing and short-lived tropical clupeid, were collected as juveniles and then as adults during austral summers from November to February in 1998–1999 and 1999–2000, using light traps in the Dampier Archipelago, Western Australia. Otolith analysis allowed backcalculation of size and growth rate at age to examine the relative influences of selective mortality and water temperature on early growth. Negative sizeselective mortality and growth-selective mortality between the juvenile and the adult stages was found only in the cohort that was the smallest and slowest growing in the period immediately following hatching. Selective mortality preferentially removed members of this cohort... |
| Tipo: Text |
Palavras-chave: Environmental factors; Indo-Pacific region; Life-history traits; Otolith; Pelagic fishes; Size. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00008/11940/8643.pdf |
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| Richard, Marion; Forget, Fabien; Mignucci, Alexandre; Mortreux, Serge; Le Gall, Patrik; Callier, Myriam; Weise, Am; Mckindsey, Cw; Bourjea, Jerome. |
| Bivalve predation by seabream has been observed worldwide and is a major concern for bivalve farmers. Farmed bivalve-seabream interactions must be better understood to ensure the sustainability of bivalve aquaculture. The objectives of this study were to characterize gilthead seabream Sparus aurata presence in a bivalve farm in Prevost Lagoon (Mediterranean Sea) using acoustic telemetry and to evaluate monthly losses of mussels Mytilus galloprovincialis and oysters Crassostrea gigas due to seabream predation over an 18 mo period inside the farm and at an unprotected experimental platform. Large (281 to 499 mm TL) seabream were more commonly detected in the bivalve farm than were small (200 to 280 mm TL) seabream. In contrast to small seabream, 90% of large... |
| Tipo: Text |
Palavras-chave: Shellfish culture; Sparus aurata; Size; Acoustic telemetry; Crassostrea gigas; Mytilus galloprovincialis; Oyster; Mussel. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00663/77515/79299.pdf |
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| Martins, Irene; Colaco, Ana; Dando, Paul R; Martins, I; Desbruyeres, Daniel; Sarradin, Pierre-marie; Marques, J; Serrao Santos, R. |
| Bathymodiolus azoricus is a mussel from vent fields in the south-west of the Azores Triple junction (Mid-Atlantic Ridge-MAR). Experimental evidence indicates that B. azoricus is a mixotrophic organism, which obtains energy from a dual endosymbiosis and filter-feeding. Yet the relative contribution of symbiosis and filter-feeding to B. azoricus nutrition is still unclear. To address this question, we developed and individual-based model which describes sulphide and methane uptake by endosymbionts, the energy gained through microbial oxidations, the transfer of energy from endosymbionts to B. azoricus, filter-feeding of particulate organic matter (POC) by B. azoricus and the energetic wastes of the mytilid with respiration. The model accounts for... |
| Tipo: Text |
Palavras-chave: Carbon flux model; Organic matter; Size; Filter feeding; Endosymbiosis; Bathymodiolus azoricus. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/2008/publication-4541.pdf |
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| Registros recuperados: 58 | |
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