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Registros recuperados: 48
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Age and growth of Cetengraulis edentulus (Clupeiformes: Engraulidae) in a subtropical bight of Southern Coast Brazil Rev. Bras. Zool.
Souza-Conceição,José Maria; Schwingel,Paulo Ricardo.
Age and growth of Cetengraulis edentulus (Cuvier, 1828) in the Saco dos Limões bight (Southern Brazil) were studied. Sampling was carried out from August 2001 to July 2003. The study of age and growth was based on the interpretation of the periodicity of ring formation in the otoliths sagittae of 491 individuals, temporal variation of otolith edge, relative marginal increments (RMI), age-length key, and von Bertalanffy curve. Cetengraulis edentulus otoliths were adequate for the interpretation of age with 86% of legibility, in which a translucent zone and its adjacent opaque zone were deposited each year. The translucent zone is formed during the cold period and the opaque zone in the warm period. Fish aged 0 (<12 months) - 4.0 year old were found and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anchovy; Life cycle; Maturity; Otolith.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000300003
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Analysis of the management of the sardine crisis Sardinella aurita in Venezuela and commentary on fishing gears and statistics Boletín de Investigaciones
Gómez Gaspar,Alfredo.
ABSTRACT The sardine Sardinella aurita, fished since 1927, is Venezuela's most significant fishery resource. The national catch reached a record high of 200,000 tons in 2004 but diminished nationally by 50% in 2005 and by 90% on Margarita Island, marking the beginning of a crisis in sardine fishing. Based on indicators of overexploitation, the fishing authority increased the minimum size required for capture and prohibited fishing for three months in 2013. The validity of these measures is studied here. A reduction in size may indicate intensive exploitation, and thus, the records of 28,217 sardines measured between 2002 and 2016 in the southeast region of Margarita Island were examined. Prior to the crisis, in 2003 and 2004, the average size was 195.48...
Tipo: Journal article Palavras-chave: Sardinella; Overfishing; Maturity; Management; Venezuela.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612018000100085
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AZ INFRASTRUKTÚRA ÉS A MEZŐGAZDASÁG AgEcon
Abonyi-Palotas, Jolan.
A rendszerváltozás óta alapjaiban változtak meg a külső és a belső körülmé-nyek, a termelés, a feldolgozás és az értékesítés közgazdasági környezete. Az élelmiszergazdaság elemei közti régi, akkor sem teljes összhang összeomlott, az újak pedig még nem jöttek létre, nem váltak általánossá. Elmaradott, szűk ke-resztmetszetű a mezőgazdaság infrastruktúrája és sajnos ez jellemzi az agrártér-ség, a vidék infrastruktúráját is. A mezőgazdasági térségekben lassabb a növe-kedés és a fejlődés üteme, visszafogottabb a beruházás, erősebb a tőkehiány. Ezen sokat lendíthet a speciális infrastruktúra átgondolt, dinamikus fejlesztése. - The internal and external circumstances, production, processing and the economic sales environment have all...
Tipo: Journal Article Palavras-chave: Infrastruktúra; Speciális agrár infrastruktúra; Fejlettség; Fejlesztés; Infrastructure; Special agricultural infrastructure; Maturity; Development; Agribusiness; Community/Rural/Urban Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007 URL: http://purl.umn.edu/57678
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Bilan synthétique des paramètres biologiques et halieutiques collectés sur les espèces récifales pêchées illégalement au sein de la Réserve Naturelle Marine de La Réunion ArchiMer
Roos, David; Rungassamy, Tévamie; Evano, Hugues; Varenne, Fanchon; Fry, Ludivine; Chapat, Melodie; Gallion, Nicolas; Huet, Jerome.
This study summarizes the results of the processing and analysis of data from illegal fisheries, apprehended by the eco-guards of the Marine Natural Reserve of Reunion from 2015 to 2017 (including the first dataset from 2018). These information are valued in terms of fisheries and bioecological knowledge for reef fish species. Thus, both diversity and abundance indices, size structures, growth parameters, stock characterization, can be apprehended from the biological parameters collected on all the species caught because they often do not exist : the sizes, weights, sexes, maturities, scales, otoliths, stomach contents as well as genetic and isotopic samples. These indices would contribute to a better diagnosis of the status and the sensitivity of stocks...
Tipo: Text Palavras-chave: Paramètres biologiques; Mesure biométrique; Maturité; Braconnage; Aire marine protégée; AMP; Réserve Naturelle Marine de La Réunion; Biological parameters; Biometric measurement; Maturity; Poaching; Marine protected area; MPA; La Reunion Marine Natural Reserve.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00469/58084/60487.pdf
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Bioactive compounds in the peel of camu camu genotypes from Embrapa’s active germplasm bank Ciênc. Tecnol. Aliment.
SOUZA,Aline; OLIVEIRA,Thaise; MATTIETTO,Rafaella; NASCIMENTO,Walnice; LOPES,Alessandra.
Abstract Our objective in this work was to evaluate the contents of the major bioactive compounds in the peel of three genotypes of camu camu at different maturity stages. The genotypes had high concentration of ascorbic acid in the peel ranging from 13.73% to 24.02%. In the ripe maturity stage the genotypes 17 and 44 presented the highest concentration of phenolics (3,299.97 mg GAE.100 g-1) and anthocyanins (165.91 g.100 g-1). Flavonols and carotenoids showed a distinct and statistically different behavior in each genotype. Genotype 44 in the ripe stage had the highest content of carotenoids (105.88 mg.100 g-1). The high contents of vitamin C and phenolic compounds make the residue of camu camu fruit processing a rich source of antioxidants to the food...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidants; Maturity; Phytochemicals; Residue; Vitamins.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000100067
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Changes in enzymes, phenolic compounds, tannins, and vitamin C in various stages of jambolan (Syzygium cumini Lamark) development Ciênc. Tecnol. Aliment.
Brandão,Taís Silva de Oliveira; Sena,Amanda Reges de; Teshima,Elisa; David,Jorge Maurício; Assis,Sandra Aparecida.
The physiological state of a fruit is closely related to ripening and climatic conditions during the growing period when the fruit undergo changes in color, texture, and flavor. The ripening of the fruit can involve a complex series of biochemical reactions with alteration in enzymes activities, phenols, tannins, and ascorbic acid. The activity of enzymes (carboximethylcellulase, polygalacturonase, and pectinlyase), the total concentration of phenolic compounds, condensed tannins, and vitamin C in five stages of maturation were studied. Significant changes were observed between the maturity stages. The phenolic compounds were higher at green stage (705.01 ± 7.41); tannins were higher at green/purple stage (699.45 ± 0.22). The results showed that the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Syzygium cumini Lam.; Maturity; Total phenolic compounds; Tannins; Vitamin C; Enzymatic activity.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400004
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Changes in seed quality during fruit maturation of sweet pepper Scientia Agricola
Vidigal,Deborah de Souza; Dias,Denise Cunha Fernandes dos Santos; Dias,Luiz Antônio dos Santos; Finger,Fernando Luiz.
Studies regarding seed maturation are important to determine the ideal fruit development stage for harvesting in order to obtain high-quality seeds. Changes in sweet pepper (Capsicum annuum L.) seed quality were monitored during seed development in order to identify the stage of maximum quality of the seeds and the optimum harvest date. Fruits harvested from 20 to 75 days after anthesis (DAA) with step of five days were grouped according to maturity stage (green, yellow, red and intense red color outside). Before seed extraction, the fruit weigh, diameter and length were determined. Seed water content, seed dry weight, 1.000-seed weight, germination, first count, speed emergence index, seedling length, accelerated aging and electrical conductivity tests...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum annuum L.; Maturity; Harvest; Vigour.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500004
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Classification of Banana Fruit Maturity using zNose CIGR Journal
P, Rajkumar; C, Dr. Indu Rani; N, Dr.Wang; G.S.V, Dr. Raghavan.
A study was undertaken to classify the banana fruits based on their ripening/maturity by using zNose flavour detection technique. The quality parameters of banana fruits viz., respiratory quotient (RQ), total soluble solids (TSS), moisture content and firmness at each ripening/maturity stage were determined and the results were correlated with zNose flavour data. The principal component analysis (PCA) was used to identify the ripening/maturity stages of banana fruits and also to test the variability of the observed data. By using multiple linear regression (MLR), models were established to predict the fruit quality parameters. The coefficient of determination (r2) corresponding to the predicted respiratory quotient, total soluble solids, moisture content...
Tipo: Info:eu-repo/semantics/article Palavras-chave: E-Nose/Z-Nose; Banana fruits; Maturity; Ripening; PCA; MLR.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3359
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Consumo e digestibilidade da fibra em detergente neutro em dietas para cordeiros Santa Inês submetidos à restrição de nutrientes. Repositório Alice
SANTOS, F. N. de S.; CARNEIRO, M. S. de S.; GUEDES, L. F.; COSTA, C. dos S.; OLIVEIRA, D. de S.; SILVA, S. F. da; ALVES, F. G. da S.; ROGERIO, M. C. P..
Resumo: Objetivou-se avaliar o consumo e a digestibilidade aparente da fibra em detergente neutro (FDN) em cordeiros Santa Inês terminados em confinamento submetidos à restrição de nutrientes conforme exigências preconizadas pelo NRC (2007). O experimento foi conduzido no Laboratório de Respirometria do Semiárido (LARESA) da Embrapa Caprinos e Ovinos. Foram utilizados 20 cordeiros da raça Santa Inês não castrados com peso inicial de 14,8 ± 3,52 kg, distribuídos em delineamento inteiramente casualizado com arranjo fatorial 2x2 (dois níveis de restrição de nutrientes: 0 e 15% de nutrientes digestíveis totais (NDT) e proteína bruta (PB), sob dois planos de maturidade: precoce e tardia). As análises de FDN e fibra em detergente ácido (FDA) procedeu-se a...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Raça Santa Inês; Maturity; Ovino; Confinamento; Maturidade; Nutrição Animal; Consumo; Sheep feeding; Feedlots; Brazil; Semiarid soils.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107283
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Determination of harvest maturity of D'Agen plums using the chlorophyll absorbance index Ciencia e Investigación Agraria
Infante,Rodrigo; Rubio,Pía; Contador,Loreto; Noferini,Massimo; Costa,Guglielmo.
The objective determination of the optimal harvest date for plums intended either for industrial processing or for consumption as fresh fruit is a fundamental concern of the fruit industry. A portable visible/near infrared (Vis/NIR) spectroscopic device was used to sort D'Agen plums harvested around the traditional commercial harvest date. The chlorophyll absorbance index was found to be capable of segregating plums into classes of maturity according to various concentrations of soluble solids and fruit compression strenght values. Fruits with a chlorophyll absorbance index value of less than 1.59 showed no differences in flesh firmness. Plums harvested with chlorophyll absorbance index values of 1.20-1.29 had a fruit compression strenght of 1.25 N and a...
Tipo: Journal article Palavras-chave: European plum; Harvest; Maturity; Vis/NIR.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000200004
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Estimating the productivity of Atlantic bluefin tuna from validated scientific data ArchiMer
Fromentin, Jean-marc; Bonhommeau, Sylvain; Kell, Laurence; Restrepo, Victor.
Estimating the productivity of an exploited marine species is not an easy or a trivial task. In the case of Atlantic bluefin tuna, the productivity can hardly be estimated from the natural mortality rates or the stock recruitment relationships because the former have never been estimated for this species from scientific data, but only “guesstimated”, while the latter remain highly uncertain for both the eastern stock (BFTE) and the western stock (BFTW). To get a better idea of bluefin tuna productivity, we thus applied the approach by Jennings et al. (1998) who proposed a surrogate of r, r’, named the potential rate of population increase. We compared this parameter and age-at-maturity (and to some extent the individual growth curves) of 25 species...
Tipo: Text Palavras-chave: Thunnus thynnus; Population growth rate; Fecundity; Maturity; CITES criteria.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00192/30293/28777.pdf
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Estimativa do período de colheita de grãos de milho. Repositório Alice
GUISCEM, J.M.; NAKAGAWA, J.; ZANOTTO, M.; BICUDO, S.J.; SANS, L.M.A.; CRUZ, J. C.; PEREIRA FILHO, I. A..
2000
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Milho; Grao; Colheita; Maturidade; Zea mays; Maize; Grain; Harvest; Maturity.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/483839
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Estrutura populacional de Callinectes ornatus Ordway (Crustacea, Portunidae) no Balneário Shangri-Lá, Pontal do Paraná, Paraná, Brasil Zoologia
Baptista,Cassiana; Pinheiro,Marcelo A. Amaro; Blankensteyn,Arno; Borzone,Carlos A..
Swimming crabs are commonly found in the otter-trawl shrimp fishery by-catch, which operate intensively in the Coastal Plain of Leste Beach, where is located Shangri-lá Beach (25°37'30"S and 48°25'08"W), Paraná State. This work aimed to study the population structure of Callinectes ornatus Ordway, 1863, the most abundant swimming crab in this beach. Between March 2000 and April 2001, fortnightly visits were accomplished in Shangri-lá at the fish market, where all swimming crabs of one otter-trawl were collected. The following data from each individual of C. ornatus were obtained: sex, carapace width (excluding lateral spines), weight, and the gonadal maturation stage, based on its color and size. Juveniles and mature males were dominant, mean sexual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: By-catch; Maturity; Population biology; Sex ratio; Swimming crab.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400018
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Fécondités individuelle et par recrue du homard européen Homarus gammarus (L.) des cotes françaises ArchiMer
Latrouite, Daniel; Morizur, Yvon; Raguenes, Gerard.
Several relationships between the fecundity and the weight or the size of females have been studied for three different (based on "eye-index") stages of incubation. The relationship between the average weight of eggs at the beginning of incubation and the size of the females shows that the egg size varies according to the female's size. Loss of eggs during incubation has been studied ; the average loss between the two extreme stages of incubation is around 27%. This is a lowered value of what accurs during the whole incubation period. Egg losses are greater for small females than for big females. The annual frequency of spawning and size at first maturity have been determined in for differents fishing effort than by the commercial size.
Tipo: Text Palavras-chave: Maturity; Fecundity per recruit.; Reproduction; Europe; France; Lobster; Aquiculture; Homarus gammarus; Fecundity; Fécondité par recrue; Fécondité; Maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1404.pdf
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Great unexpected differences between two populations of the intertidal crab Neohelice granulata inhabiting close but contrasting habitats (Crustacea: Decapoda: Brachyura) Rev. Bras. Zool.
Spivak,Eduardo D.; Bas,Claudia C.; Luppi,Tomás A..
ABSTRACT Two populations of the Southwestern Atlantic burrowing crab, Neohelice granulata (Dana, 1851), are separated by only 190 km. They inhabit bays that drain into a Patagonian gulf in the southernmost limit of the geographical distribution of the species: San Antonio Bay (SAO) and San José Gulf (RSJ). The population from SAO has been extensively studied, whereas that of RSJ has not. The main goal of this study is to compare the ecological and habitat characteristics of the two populations, based on samples collected on successive days during the middle of the reproductive season of the crab. The substrate of SAO is composed of a high proportion of gravel and scarce organic matter, whereas the substrate of RSJ presents twice as much silt and clay, and...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Argentine; Estuaries; Crab; Fecundity; Feeding; Growth; Maturity; Sediment.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000604001
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Growth of Critically Endangered annual fish Austrolebias wolterstorffi (Cyprinodontiformes: Rivulidae) at different temperatures Neotropical Ichthyology
Fonseca,Alinca Peres da; Volcan,Matheus Vieira; Sampaio,Luís André; Romano,Luís Alberto; Robaldo,Ricardo Berteaux.
Given the importance of knowledge of the biology of endangered species for the planning of conservation and management efforts, the aim of this study was to investigate the influence of temperature on the growth of Austrolebias wolterstorffi (Ahl, 1924). To clarify the thermal influence on the growth of the species, temperatures of 16, 20, 24 , and 28°C were tested in triplicate. The present study showed that a water temperature of 28°C is detrimental to the growth of the species. Among the other tested temperatures, it was found that the optimum temperature for growth decreases as an individual ages and is slightly lower for females. It was demonstrated here that males reach a higher weight and length, and grow faster than females, reaching sexual...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endangered species; Length; Maturity; Weight.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000400837
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Identification of QTLs for pod and kernel traits in cultivated peanut by bulked segregant analysis Electron. J. Biotechnol.
Gomez Selvaraj,Michael; Narayana,Manivannan; Schubert,A. Michael; Ayers,Jamie L; Baring,Michael R; Burow,Mark D.
Bulked segregant analysis was used to identify simple sequence repeat (SSR) markers associated with pod and kernel traits in cultivated peanut, to permit rapid selection of superior quality genotypes in the breeding program. SSR markers linked to pod and kernel traits were identified in two DNA pools (high and low), which were established using selected F2:6 recombinant individuals resulting from a cultivated cross between a runner (Tamrun OL01) and a Spanish (BSS 56) peanut. To identify quantitative trait loci (QTLs) for pod and kernel-related traits, parents were screened initially with 112 SSR primer pairs. The survey revealed 8.9% polymorphism between parents. Of ten SSR primer pairs distinguishing the parents, five (PM375, PM36, PM45, pPGPseq8D9, and...
Tipo: Journal article Palavras-chave: Maturity; Oil quantity; Quality; SSR markers.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200003
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In situ degradation kinetic of Andropogon gayanus grass silages harvested at three stages of maturity. Repositório Alice
RIBEIRO JÚNIOR, G. de O.; VELASCO, F. O.; FARIA JÚNIOR, W. G. de; TEIXEIRA, A. de M.; MACHADO, F. S.; MAGALHÃES, F. A.; JAYME, D. G.; GONÇALVES, L. C..
2014
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Gamba grass; Maturity; Preserved forage; Ruminal degradability; Tropical grass.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1013820
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Intake, performance, digestibility, microbial efficiency and carcass characteristics of growing Nellore heifers fed two concentrate levels R. Bras. Zootec.
Gionbelli,Mateus Pies; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Paulino,Pedro Veiga Rodrigues; Valadares,Rilene Ferreira Diniz; Santos,Tathyane Ramalho; Silva,Luiz Fernando Costa e; Magalhães,Felipe Antunes.
The objective of this study was to evaluate nutrients and dry matter intake, average daily gain, feed efficiency and digestibility of diets, microbial efficiency, cold carcass yield and basic cuts yields of young Nellore heifers receiving two concentrate levels. Nineteen heifers with initial average weight of 165.6±29.8 kg were used. Three animals were used in a trial to determine the digestibility and microbial efficiency of the two levels of concentrate (225 and 450 g/kgDM) and a treatment with a restricted intake maintenance level. The remaining 16 heifers were confined for 168 days for evaluation of performance and intake, divided into two levels of concentrate. Every 42 days, four animals, two from each concentrate level, were slaughtered to determine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef heifers; Concentrate level; Feedlot; Growth; Maturity; Weight gain.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500023
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Isolation of Cucurbita pepo ethylene receptors Cup-ETR1 and Cup-ERS1 and functional analysis during fruit formation National Institute of Agronomic Research
Payán, C.; Peñaranda, A.; Mariotti, B.; Garrido, D.; Jamilena, M.; Gómez, P..
The Zucchini morphotype of Cucurbita pepo is considered summer squash, and the fruits are harvested when still immature. The formation of the fruit follows sequential processes commencing in the floral organs which must be strictly coordinated in order to obtain a proper fruit. Lack of coordination in the growth of floral organs leads to unsuccessful fruit formation and yield loss. Previous studies have indicated the role of ethylene in the regulation of flower and fruit formation. To study the regulation mechanisms of this hormone during fruit formation, we have isolated homolog genes of ethylene receptors, named Cup-ETR1 and Cup-ERS1. The study of the expression of these genes in ovary and fruit by Q RT-PCR showed a distinctive expression pattern in...
Tipo: Poster Palavras-chave: Fruit set; Zucchini cultivar; Growth coordination; Maturity; Cucurbita pepo; Ethylene receptor.
Ano: 2008 URL: http://hdl.handle.net/2174/266
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