Consulta: subjectFacets:"Behaviour"
Registros recuperados: 87
Data/hora: 09/06/2024 01:29:24

Oviposition behaviour of Gryon gallardoi (Hymenoptera, Scelionidae) on eggs of different ages of Spartocera dentiventris (Hemiptera, Coreidae)
Provedor de dados: Iheringia Série Zoologia
Autores: Rocha,Luciane da; Redaelli,Luiza; Mendonça Jr.,Milton de S.
The oviposition behaviour of Gryon gallardoi (Brèthes, 1914) on eggs of Spartocera dentiventris Mendonça Jr. (Berg, 1884) of different ages (2, 3, 4, 5, 6, 7, 8 and 12 days) was investigated. Groups of 12 eggs of each age were exposed to single females of G. gallardoi, and the oviposition behaviour was recorded under a stereomicroscope for two hours. Ten replicates were used for each age. In order to identify the moment the parasitoid egg was released inside the host, 1-day old eggs of S. dentiventris were exposed to G. gallardoi females, and the oviposition was interrupted at intervals of 20, 40, 60, 80, 100, 120, 140 and 160s after ovipositor insertion had initiated. Five behavioural steps were recorded: drumming, ovipositor insertion, marking, walking...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scelionidae; Parasitoid; Behaviour; Host selection.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000300001

Avaliação de cultivares de soja sobre braquiária no sistema plantio direto, safra 1998/99, em Piacatu, SP.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: VIEIRA, C. P.; SALDANHA, O. A.; CAMBRAIA, L. A.
bitstream/item/39753/1/COT-11-1999.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Comportamento; Brasil; Sao Paulo; Piacatu; Soybean; Behaviour; Direct soweing; Pasture.; Brachiaria Brizantha; Cerrado; Glycine Max; Pastagem; Plantio Direto; Variedade; Soja.; Brazil; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/242260

Avaliacao de alguns fatores do meio que influenciam a adaptacao, o comportamento fisiologico e o desempenho de bovinos da raca Sindhi, nas condicoes ambientais do semi-arido brasileiro: relatorio parcial das atividades referentes ao periodo de 01/09/97 a 01/07/98.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: TURCO, S. H. N.
Este experimento esta sendo conduzido, no campo experimental da caatinga, Embrapa Semi-Arido, localizado no municipio de Petrolina-PE, regiao semi-arida do Nordeste brasileiro. Estao sendo utilizados 22 animais, da raca Sindhi, sendo dez femeas e doze machos, com idade variando de 1 a 4 anos. O manejo para todas as categorias animais e o mesmo utilizado pelo sistema de producao Embrapa Semi-Arido, onde sao manejadas, todo o periodo do experimento, em pastagem nativa (caatinga), durante dois a quatro meses e em pastagem cultivada (capim buffel), durante o restante do ano. As informacoes basicas para este trabalho foram: a) variaveis fisiologicas: temperatura retal (TR); temperatura da pele (TP); frequencia respiratoria (FR); b) variaveis anatomicas:...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Rca Sindhi; Comportamento fisiologico; Adaptacao; Desempenho; Semi-Arido; Bovine; Behaviour; Adaptation; Bovino; Performance; Breeds; Cattle; Physiology.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133625

Comportamento de cultivares de feijão (Phaseolus vulgaris L.) em várzea, em Dourados, MS, em 1981.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: LIMA, P. R. de A.; MENDES, M. C.
bitstream/item/66153/1/CPAO-PESQ.-AND.-14-81.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivar; Comportamento; Brasil; Mato grosso do sul; Dourados; Bean; Behaviour; Lowland.; Feijão; Phaseolus Vulgaris; Várzea.; Brazil; Varieties.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/231379

Mosca-dos-chifres: comportamento e danos em bovinos nelores.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: BIANCHIN, I.; ALVES, R. G. de O.
O CNPGC realizou um experimento em quatro anos consecutivos (1991-1995). A cada ano, um rebanho de 120 vacas nelores, com bezerro ao pe, foi dividido em dois grupos, levando-se em consideracao as idades e os pesos das vacas e as idades dos bezerros. Durante a estacao de monta (novembro a fevereiro), foram mantidos tres touros, testados andrologicamente, em cada grupo. Em um dos grupos aplicaram-se inseticidas com intervalos que variavam com o principio ativo utilizado, em cada vaca e touro. Os dois grupos foram mantidos em piquetes separados, formados de Brachiaria decumbens, rotacionados a cada catorze dias, com uma taxa de lotacao de 1 UA/ha. As contagens da mosca nas vacas foram realizadas, tambem, a cada catorze dias. As vacas foram pesadas a cada dois...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bovino de corte; Nelore; Sanidade; Mosca-dos-chifres; Comportamento; Mato Grosso do Sul; Brasil; Health; Horn fly; Behaviour; Infestation; Brazilian savannas.; Cerrado; Infestação.; Haematobia Irritans; Nellore; Beef cattle.; Brazil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316864

Comparação entre espécies arbóreas nativas (Arboreto linear), em Foz do Iguaçu, PR.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARVALHO, P. E. R.; ZELAZOWSKI, W. H.; KAMINSKI, N. L.; LOPES, G. L.
bitstream/item/46107/1/PA0022.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Comportamento; Foz do Iguacu; Behaviour; Indigenous organisms.; Espécie Nativa; Silvicultura.; Reflorestamento; Reforestation; Silviculture.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290773

Comparação entre espécies arbóreas nativas e exóticas (Arboreto linear) em Foz do Iguaçu, PR.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARVALHO, P. E. R.; ZELAZOWSKI, W. H.; KAMINSKI, N. L.; LOPES, G. L.
bitstream/item/101390/1/PA-1999-Carvalho-ComparacaoEspecies.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Comportamento; Foz do Iguaçu; Behaviour; Forest.; Floresta; Reflorestamento; Silvicultura.; Reforestation; Silviculture.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290787

Comparação entre espécies arbóreas leguminosas e não leguminosas, em arboreto, em Santa Helena, PR.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARVALHO, P. E. R.; ZELAZOWSKI, W. H.; KAMINSKI, N. L.; LOPES, G. L.
bitstream/item/101392/1/PA-1999-Carvalho-ComparacaoEspeciesArboreas.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Comportamento; Espécie exótica; Behaviour; Indigenous organisms.; Espécie Nativa; Silvicultura.; Reflorestamento; Reforestation; Silviculture.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290774

Avaliação de cultivares de aveia branca para produção de forragem.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MACHADO, L. A. Z.
bitstream/item/39697/1/PA-9-1999.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Aveia branca; Comportamento; Behaviour; Production.; Avena Sativa; Cerrado; Forragem; Produção; Variedade.; Forage; Oats; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/242139

Estudo do comportamento sexual de equinos da raça pantaneira no periodo peripuberal.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SERENO, J. R. B.; MELO, M. I. V. de; HENRY, M. R. J. M.; CASSALI, G. D.
Por ser essencial no "trabalho de gado" e capaz de suportar marchas por periodos prolongados em areas alagadas. A EMBRAPA-CPAP iniciou, em 1988, trabalhos de conservacao e melhoramento do cavalo Pantaneiro, com pesquisas nas areas de reproducao, nutricao, sanidade, fisiologia de exercicio, genetica e selecao. Dentro da reproducao tem-se estudado a implantacao de estacao de monta, a avaliacao da proporcao macho:femea e comportamento sexual de machos e femeas a campo, entre outros aspectos tecnicos bem estabelecidos no manejo tradicional de outras regioes. Para a implantacao de tecnicas de manejo reprodutivo com sucesso e utilizacao mais racional de cada categoria animal, faz-se necessario considerar suas caracteristicas fisiologicas. Nos machos e de...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Equino; Cavalo pantaneiro; Equinus; Behaviour; Horse.; Comportamento Sexual; Reprodução Animal.; Reproduction.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790961

Tamandua-da-soja: aspectos biologicos, danos e comportamento.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: HOFFMANN-CAMPO, C.B.
bitstream/item/33678/1/tamandua.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Comportamento; Controle; Brasil; Soybean; Insect; Pest; Biology; Behaviour; Damage; Control.; Biologia; Dano; Entomologia; Inseto; Pesquisa; Praga; Sternechus Subsignatus; Soja.; Brazil; Entomology; Research.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445135

Comparação entre espécies florestais nativas e exóticas com "one-tree-plot" em Santa Helena, PR.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARVALHO, P. E. R.; ZELAZOWSKI, W. H.; KAMINSKI, N. L.; LOPES, G. L.
bitstream/item/101391/1/PA-1999-Carvalho-ComparacaoEspecies.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Comportamento; Espécie exótica; Behaviour; Indigenous organisms.; Espécie Nativa; Silvicultura.; Reflorestamento; Reforestation; Silviculture.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290775

Avaliacao de alguns fatores do meio que influenciam a adaptacao, o comportamento fisiologico e o desempenho de bovinos da raca Sindi, nas condicoes ambientais do semi-arido brasileiro.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: TURCO, S. H. N.
Os trabalhos com capim buffel efetuados pela Embrapa Semi-Arido e outras instituicoes, comprovam a possibilidade de incrementos de peso vivo em bovinos da ordem de 100 a 150 kg por cabeca/ano, sendo atualmente considerada um dos mais importantes recursos forrageiros para a regiao semi-arida. Todavia, mesmo com esses ganhos, no periodo seco, pode haver perdas, devido a queda dos teores de proteina e energia do capim. Entretanto, sabendo-se que a qualidade da dieta selecionadas pelos ruminantes em pastejo, pode flutuar com o "status" fenologico das plantas forrageiras, a suplementacao energetica e/ou proteica de baixo custo, via mistura multiplas, pode se tornar uma pratica e uma excelente alternativa na busca do aumento da eficiencia produtiva dos animais,...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Raca Sindi; Comportamento fisiologico; Desempenho; Adaptacao; Regiao semi-arida; Behaviour; Adaptation; Semiarid region; Bovino; Ecologia Animal; Performance; Animal ecology; Cattle.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133623

Avaliação de cultivares de aveia preta para produção de forragem e cobertura do solo.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MACHADO, L. A. Z.
bitstream/item/39698/1/PA-10-1999.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Aveia preta; Comportamento; Behaviour; Cover plants.; Cobertura do Solo; Cerrado; Forragem; Variedade.; Forage; Oats; Varieties.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/243100

Comportamento sexual de garanhão da raça pantaneira em monta natural.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: SERENO, J. R. B.; COSTA, M. S.; RODRIGUES, B. M.; ARAÚJO, M. T. B. D.; FERREIRA, M. A.; SERENO, F. T. P. S.; BARIONI JÚNIOR, W.
bitstream/CPAC-2009/27865/1/p2006_78.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Equino; Behaviour; Breeding seasons.; Acasalamento; Comportamento Animal; Reprodução Animal.; Equidae; Reproduction.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570306

Avaliação de cultivares de aveia branca para cobertura do solo, produção de forragem e grãos.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: MACHADO, L. A. Z.
bitstream/item/39740/1/COT-09-1999.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Comportamento; Oat; Behaviour; Cover plants; Grain; Production.; Aveia; Avena Sativa; Cobertura do Solo; Cerrado; Forragem; Grão; Produção.; Forage; Soil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/242421

Food deprivation reduces social interest in the European sea bass Dicentrarchus labrax
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Aimon, Cassandre; Le Bayon, Nicolas; Le Floch, Stephane; Claireaux, Guy.
Periods of food deprivation up to several months are common features for fishes and in such conditions, fitness will be determined by their capacity to maximize food encounter while minimizing predation risk. In this context, the propensity to take risk and the willingness to associate with conspecifics are particularly important as they contribute to alleviating the trade-off between predation avoidance and foraging efficiency. This study examined to what extent food deprivation modulates fish risk-taking and social behaviours, as well as the relationship between them. To address these issues juvenile European sea bass were either fed daily with a maintenance ration or food-deprived during 3 weeks. Risk-taking and sociability were assessed through...
Tipo: Text
Palavras-chave: Behaviour; Teleost fish; Exploratory activity; Sociability; Risk taking; Behavioural interaction.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00474/58552/62391.pdf

Determinisme du comportement associatif des poissons pelagiques: les hypotheses a l'epreuve des faits
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Freon, Pierre; Dagorn, Loeiz.
No abstract.
Tipo: Text
Palavras-chave: Attracting techniques; Behaviour; Ecological associations; Pelagic fisheries.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00042/15322/12661.pdf

Acoustic observations in the Bay of Biscay: Schooling, vertical distribution, species assemblages and behaviour
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Masse, Jacques.
Eight acoustic surveys were carried our in the Bay of Biscay, during 1989-94, to study the distribution and abundance of anchovy (Engraulis encrasicolus, L.) in that area. Acoustic data were stored using the INES/MOVIES acquisition and processing system. Species-specific distribution patterns were confirmed through complementary sampling with a mid-water trawl. This paper summarises the combination of technical procedures used for acoustic assessments, and the results of acoustic surveys in the Bay of Biscay that pertain to the dynamics of this stock. Information is presented on the distribution and abundance of anchovy and co-occuring species, and on the movement patterns detected within the pelagic fish community, in relation to environmental conditions....
Tipo: Text
Palavras-chave: Acoustic; Anchovy; Engraulis encrasicolus; Schooling; Pelagic; Behaviour; Bay of Biscay.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00191/30265/28719.pdf

Evaluation of self-feeders as a tool to study diet preferences in groups of Atlantic cod (Gadus morhua)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Millot, Sandie; Nilsson, Jonatan; Fosseidengen, Jan Erik; Begout, Marie-laure; Kristiansen, Tore.
Among other applications, self-feeding has been used to study food preferences in fish allowing them to choose between feeders with different food content. Preference tests assume that (i) trigger actuations are motivated by appetite, (ii) fish can learn which feeder contains which food and discriminate between feeders solely on the basis of their content, and (iii) in groups of fish, the triggering preferences is representative for the individuals of the group. We studied individual triggering behaviour in four groups of 14 Atlantic cod (length of 34 +/- 2 cm, weight of 424 +/- 102 g, mean +/- SE, water temperature comprised between 7-8 degrees C) that were first given the choice between two self-feeders with identical content (Period 1 of 14 days) and...
Tipo: Text
Palavras-chave: Learning; Self-feeding; Social status; Behaviour; Coping abilities; Gadidae.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00116/22754/20605.pdf

Schooling behaviour of small pelagic fish: phenotypic expression of independent stimuli
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Brehmer, Patrice; Gerlotto, François; Laurent, Charline; Cotel, Pascal; Achury, Alina; Samb, Birane.
We compared echo sounder measurements of fish schools on Venezuelan and Senegalese coastal shelves. In both areas Sardinella aurita was the predominant aggregative species; the stocks are known to be genetically independent. Persistent school typology is described by analysing 7 acoustic surveys in Venezuela and comparing with pioneer observations in Senegal. The echo types encountered in both countries were comparable, with S. aurita and their associated species having comparable schooling behaviour. School morphology appears to be more related to species than to global characteristics of their ecosystems, as fish school descriptors were similar for both stocks. Nevertheless, S. aurita may adopt different school morphologies. Differentiation between day...
Tipo: Text
Palavras-chave: Small pelagic fish; Schooling; Phenotypic expression; In situ observations; Echo type; Diel cycle; Behaviour.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2536.pdf

Effets létaux et sublétaux à long terme d'un nonylphénol polyéthoxyle, le NP 5 sur la civelle
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bocquene, Gilles; Miossec, Laurence.
Studying different concentrations, we have determined LT 50 of a non-ionic surfactant on elver eel: the polyoxyethylated nonylphenol NP 5. Then we studied sorne sublethal effects on fish behaviour and histological effects on gills, during 21 days. We demonstrated primary effects on gills structure and we believe in an impairing of the central nervous system.
Tipo: Text
Palavras-chave: Anguille; Tensio-actifs; Effets subletaux; Branchies; Eel; Surfactant; Sublethal effects; Behaviour; Gills.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00156/26705/24780.pdf

Relationships between growth, survival, physiology and behaviour — A multi-criteria approach to Haliotis tuberculata phenotypic traits
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lachambre, Sebastien; Huchette, Sylvain; Day, Rob; Boudry, Pierre; Rio-cabello, Antoine; Fustec, Timothee; Roussel, Sabine.
Abalone growth rate is often identified among important traits to improve through selective breeding. However, the rapid success of some selective breeding plans has sometimes led to negative effects in some aquaculture species due to trade-offs. One of them is the loss of homeostasis of selected animals which results in the inability to resist the stress experienced during the rearing process. In this context, this study aimed to analyze the phenotypic relationships between growth, and physiological and behavioural traits in Haliotis tuberculata under stressful conditions. Eleven traits related to growth, immunity, reproduction and behaviour were recorded under laboratory conditions. A total of 120 adults from wild or farm origin were first monitored...
Tipo: Text
Palavras-chave: Haliotis tuberculata; Growth; Behaviour; Physiology; Multivariate analysis; Phenotyping.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00333/44434/44101.pdf

The significance of colour patterns in fish for the study of some fundamental issues in behaviour.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Baerends, Gerard P.
In this paper, the author shows why fish can be extremely valuable subjects for the study of a number of behaviour problems of crucial fundamental importance. As this special suitability is based on the capacity of changing rapidly and reversibly the body colouration and its marking patterns, he gives examples of the relation between colours and behaviour in fish.
Tipo: Text
Palavras-chave: Pisces; Colour; Behaviour.
Ano: 1976
URL: http://archimer.ifremer.fr/doc/1976/publication-1998.pdf

Trois saisons de pêche de la truite de mer
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Deschamps, Gerard; Miossec, Dominique; Pannier, Thierry.
The research programme developed within in the framework of the project study of the Paluel site allowed us to highlight, near the drainage channel of the Durdent, a sea trout fishery using fixed nets in the area of the swaying of the tides. This activity, very much in use in the eastern English Channel and along the southern shoreline of the North Sea, not only for catching certain amphibiotic species but also species that are strictly of the sea, represents a sizeable cause of the mortality rate for salmonid populations during their coastal migrations. The studies begun on this fishery in 1980 have as their goal to assess the size of the salmonid catches near the site, especially of sea trout, and to acquire more complete knowledge of the catch, biology...
Tipo: Text
Palavras-chave: Fishing; Behaviour; Biology; Nuclear plant; Survey; Paluel (France); Sea trout; Capture; Comportement; Biologie; Centrale nucléaire; Surveillance; Paluel; Truite de mer.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/rapport-2503.pdf

Effects of dispersant treated oil upon exploratory behaviour in juvenile European sea bass (Dicentrarchus labrax)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Aimon, Cassandre; Lebigre, Christophe; Le Bayon, Nicolas; Le Floch, Stephane; Claireaux, Guy.
Accidental spills are pervasive pollution in aquatic ecosystems. Resorting to chemical dispersant is one of the most implemented strategies in response to oil spills, but it results in an increase in the bio-availability of oil compounds known to disturb fish neurosensory capacities and hence fish habitat use. While it has become well established that acute oil exposure can cause a range of physiological defects, sub-lethal consequences on animal behaviour have only received recent attention. Here we investigated the effect of an exposure to a 62 h- dispersant treated oil on the exploration tendency (exploratory activity, and avoidance of unfamiliar open areas) of juvenile European sea bass. Three different concentrations of chemically dispersed oil were...
Tipo: Text
Palavras-chave: Behaviour; Oil spill; Teleost fish; Exploration; Open field test; European sea bass.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00658/77020/78290.pdf

Variability in natural behaviour, and observed reactions to an ROV, by mid-slope fish species
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lorance, Pascal; Trenkel, Verena.
The behaviour of eight large benthopelagic fish taxa was analysed using video records collected with an ROV on the mid-slope of the Bay of Biscay. The studied species were roundnose grenadier (Coryphaenoides rupestris), orange roughy (Hoplostethus atlanticus), deep-sea scorpionfish (Trachyscorpia cristulata echinata), and black scabbardfish (Aphanopus carbo), as well as individuals belonging to the families Alepocephalidae, Chimaeridae, and Scyliorhinidae, and to the order Squaliformes. Some of the observed fish were grouped at the family taxonomical level due to visual identification to species being unreliable. Assumed natural (undisturbed) behaviour was categorised in terms of (i) body position with respect to the bottom sea floor, (ii) locomotion and...
Tipo: Text
Palavras-chave: ROV; Life strategies; Fish; Diversity; Continental slope; Behaviour; Bay of Biscay.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1228.pdf

Change in the shoaling behaviour and nutritional condition of anchovies (Engraulis encrasicolus L.) during a wind-induced water column disturbance: a natural event test of a general hypothesis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bergeron, Jean-pierre; Masse, Jacques.
Fishermen have long observed the sudden change of shoaling behaviour of small pelagic fish following a strong wind event. The phenomenon was thereafter confirmed by fisheries scientists using acoustic tools. In this study, we report our observations made with acoustics to measure disorganization of the previously observed spatial distribution and shape of shoals that occurred after a wind event. The measurements were made during a fisheries research cruise in the Bay of Biscay (NE Atlantic) aimed at determining i) small pelagic fish species abundance and ii) the individual nutritional state of anchovies (Engraulis encrasicolus L.) via evaluation of their RNA/DNA ratio. A spatial fine-scale study was conducted in two of the main breeding areas for anchovy,...
Tipo: Text
Palavras-chave: Engraulis encrasicolus L.; Anchovy; Behaviour; Acoustics; Bay of Biscay; Nutritional condition; RNA/DNA ratio.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00033/14473/11782.pdf

Sedentary behaviour establishment in 0-group common sole Solea solea: a laboratory video-tracking study
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Durieux, Eric; Le Duigou, Mathieu; Millot, Sandie; Sasal, Pierre; Begout, Marie-laure.
Spontaneous swimming activity of 0-group common sole (Solea solea) was evaluated using a video-tracking system under laboratory conditions. An experiment was conducted during two consecutive days on individuals sampled in June, July, September and November (2004) in a coastal nursery ground (Pertuis Charentais, Bay of Biscay, France). The measured behavioural variables were: distance travelled and frequency of occurrence of burying, swimming and immobility. 0-group sole showed a relatively clear circadian activity in line with the artificial light conditions (day, twilight and night). Swimming activity of 0-group sole decreased drastically from June to July, thereafter remaining at a very low level in September and November. Such important changes reflect...
Tipo: Text
Palavras-chave: Behaviour; Flatfish; Juvenile; Swimming activity; Video-tracking.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00008/11941/9096.pdf

Effects of bioactive extracellular compounds and paralytic shellfish toxins produced by Alexandrium minutum on growth and behaviour of juvenile great scallops Pecten maximus
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Borcier, Elodie; Morvezen, Romain; Boudry, Pierre; Miner, Philippe; Charrier, Gregory; Laroche, Jean; Hegaret, Helene.
Dinoflagellates of the genus Alexandrium are a major cause of harmful algal blooms (HABs) that have increasingly disrupted coastal ecosystems for the last several decades. Microalgae from the genus Alexandrium are known to produce paralytic shellfish toxins (PST) but also bioactive extracellular compounds (BEC) that can display cytotoxic, allelopathic, ichtyotoxic or haemolytic effects upon marine organisms. The objective of this experimental study was to assess the effects of PST and BEC produced by A. minutum upon juvenile great scallops Pecten maximus. Scallops were exposed for one week to two different strains of A. minutum, the first producing both PST and BEC and the second producing only BEC. Escape response to starfish, daily shell growth,...
Tipo: Text
Palavras-chave: Harmful Algal Bloom (HAB); Alexandrium minutum; Pecten maximus; Paralytic Shellfish Toxins (PST); Extracellular compounds; Behaviour; Histology.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00368/47878/47893.pdf

Behavioural observations of the cephalopod Vulcanoctopus hydrothermalis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rocha, Francisco; Gonzalez, Angel; Segonzac, Michel; Guerra, Angel.
Introduction : The hydrothermal vent ecosystem is inhabited by poorly known species of deep-sea octopuses (Lutz &amp; Voight, 1994). Vulcanoctopus hydrothermalis Gonzalez &amp; Guerra, 1998, is the only described cephalopod from a hydrothermal vent (Gonzalez et al., 1998). Little is known about this small benthic octopus, up to 35 mm mantle length, with a muscular and semi-translucent body, lack of any type of chromatic elements in the skin and eye with no trace of an iris (Gonzalez et al., 1998). Its morphology was studied by Gonzalez et al. (in press) but there have been no behavioural studies of this species to date. Most observations of octopus behaviour in abyssal environments, mainly Cirroctopoda, have been described from videotape records (Boletzky...
Tipo: Text
Palavras-chave: Vulcanoctopus hydrothermalis; Behaviour; Cephalopod; Hydrothermal vent.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-897.pdf

A preliminary study of the behaviour and vitality of reseeded juvenile great scallops, of three sizes in three seasons
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: 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

Utilisation de l'écho-intégration en recherche halieutique (Analyse de 5 campagnes effectuées dans le Golfe de Gascogne de 1983 à 1987)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Masse, Jacques.
Afler a short review of acoustic principles, methodology and purposes of accustic surveys are described and some examples given. IFREMER instrumentation, strategy and calculations used during echo sur veys are  described in details and criticized. Five acouslic sur veys carried o t in the Bay of Biscay between 1983 and 1987 show that several species are generally mixed , and lheir identification is very oflen biased by behaviour phenomena. A new way of classi fying echotraces and interpretating data has been applied to these surveys. The results are summarized in tables and maps. Whenever multispecies structures are concerned, it seems at present impossible to assess absolute biomasses based on acoustic survey method. ln such a situation, acoustic surveys...
Tipo: Text
Palavras-chave: Echo-intégration; Golfe de Gascogne; Petits pélagiques; Comportement; Evaluation; Acoutic; Surveys; Bay of Biscay; Pelagic fishes; Behaviour; Assessment.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/00455/56654/58395.pdf

First links between self-feeding behaviour and personality traits in European seabass, Dicentrarchus labrax
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ferrari, Sebastien; Benhaim, David; Colchen, Tatiana; Chatain, Beatrice; Begout, Marie-laure.
Most studies carried out with seabass under self-feeding conditions report an intriguing social structure that is built around the device and the food dispenser with three coexisting triggering categories: high-triggering (HT), low-triggering (LT) and zero-triggering (ZT) fish. However, neither sex nor feeding motivation or hierarchy can explain the establishment of this specialization. We characterised the personality of seabass with the commonly used restraint and open field tests and assessed the link between personality traits and individual triggering activity towards the self-feeder apparatus. We found no differences between triggering categories during the restraint test but high triggering fish were characterised as shyer than low- and...
Tipo: Text
Palavras-chave: Behaviour; Boldness; Foraging; Open field test; Restraint test; Teleost.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00216/32742/31147.pdf

Environmental and behavioural factors affecting activity in the intertidal gastropod Hydrobia ulvae
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Orvain, Francis; Sauriau, Pierre-guy.
Laboratory microcosms were used to investigate the mud snail Hydrobia ulvac (Pennant) bioturbation activities and behavioural changes in response to snail density, algal food, sediment moisture content, light regime and water cover conditions. Density-dependent kinetics of bioturbated muddy areas were described by von Bertalanffy equations, which provided reliable estimates of mud surface covering rates by snail tracks (m(2) h(-1) snail(-1)), Snails need a wet habitat to be active either covered by seawater or by moving in fluid layers for low-tide conditions. Light and microphytobenthic biomass, which are less potent to affect snail activity, are positively interrelated to increase covering rates in the tested chl a concentrations within the range of 1 -...
Tipo: Text
Palavras-chave: Modelling; Intertidal mudflat; Hydrobia ulvae; Environmental factors; Bioturbation; Behaviour.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-3775.pdf

Mise en place d'un plan de sélection génétique pour l'ormeau européen Haliotis tuberculata
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Lachambre, Sébastien.
In the context of an increasing demand and a declining supply from fisheries, worldwide aquaculture production of abalone has greatly increased in the last decades. Selective breeding has been initiated to improve growth in major abalone species. In France, the abalone production was initiated 30 years ago and struggles to develop. This CIFRE PhD co-financed by France Haliotis, the only French hatchery in activity, was initiated to study early domestication process of farmed abalone population and to provide knowledge required to design a selective breeding program adapted to this company. Wild and farmed populations were compared, showing that, until 2013, farmed and wild abalone presented similar performances. However, lower physiological and behavioural...
Tipo: Text
Palavras-chave: Sélection génétique; Ormeaux; Croissance; Physiologie; Comportement; Selective Breeding; Abalone; Growth; Physiology; Behaviour.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00441/55231/56711.pdf

Fine-scale 3-dimensional movement behaviour of silky sharks Carcharhinus falciformis associated with fish aggregating devices (FADs)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Filmalter, John; Cowley, Paul; Forget, Fabien; Dagorn, Laurent.
The silky shark Carcharhinus falciformis is the primary elasmobranch bycatch in the global tuna purse seine fishery using fish aggregating devices (FADs). Information on the associative behaviour of this species with floating objects remains limited. Here the use of various electronic tags provided important new insight into this behaviour. Thirty-eight juvenile silky sharks (69 to 116 cm total length; TL) were tagged with acoustic tags at 9 drifting FADs equipped with satellite-linked acoustic receivers in the western Indian Ocean (total monitoring = 154 d). Presence/absence and swimming depth data were transmitted from the receivers. A subset of 17 individuals was also fitted with pop-up satellite archival tags (PSATs; n = 13), or internal archival tags...
Tipo: Text
Palavras-chave: Shark; Behaviour; Telemetry; FAD; Bycatch.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00300/41086/73619.pdf

Spatial distribution and activity patterns as welfare indicators in response to water quality changes in European sea bass, Dicentrarchus labrax
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Alfonso, Sebastien; Sadoul, Bastien; Cousin, Xavier; Bégout, Marie-laure.
In aquaculture, fish are exposed to unavoidable stressors that can be detrimental for their health and welfare. However, welfare in farmed fish can be difficult to assess, and, so far, no standardized test has been universally accepted as a welfare indicator. This work contributes to the establishment of behavioural welfare indicators in a marine teleost in response to different water quality acute stressors. Groups of ten fish were exposed to high Total Ammonia Nitrogen concentration (High TAN, 18 mg.L-1), Hyperoxia (200 % O2 saturation), Hypoxia (20 % O2 saturation), or control water quality (100% O2 saturation and TAN &lt; 2.5 mg.L-1) over 1 hour. Fish were then transferred in a novel environment for a group behaviour test under the same water quality...
Tipo: Text
Palavras-chave: Fish; Welfare; Water quality; Behaviour; Stress.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00612/72399/71344.pdf

An ecotoxicological view on neurotoxicity assessment
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Legradi, J. B.; Di Paolo, C.; Kraak, M. H. S.; Van Der Geest, H. G.; Schymanski, E. L.; Williams, A. J.; Dingemans, M. M. L.; Massei, R.; Brack, W.; Cousin, Xavier; Begout, Marie-laure; Van Der Oost, R.; Carion, A.; Suarez-ulloa, V.; Silvestre, F.; Escher, B. I.; Engwall, M.; Nilen, G.; Keiter, S. H.; Pollet, D.; Waldmann, P.; Kienle, C.; Werner, I.; Haigis, A. -c.; Knapen, D.; Vergauwen, L.; Spehr, M.; Schulz, W.; Busch, W.; Leuthold, D.; Scholz, S.; Vom Berg, C. M.; Basu, N.; Murphy, C. A.; Lampert, A.; Kuckelkorn, J.; Grummt, T.; Hollert, H.
The numbers of potential neurotoxicants in the environment are raising and pose a great risk for humans and the environment. Currently neurotoxicity assessment is mostly performed to predict and prevent harm to human populations. Despite all the efforts invested in the last years in developing novel in vitro or in silico test systems, in vivo tests with rodents are still the only accepted test for neurotoxicity risk assessment in Europe. Despite an increasing number of reports of species showing altered behaviour, neurotoxicity assessment for species in the environment is not required and therefore mostly not performed. Considering the increasing numbers of environmental contaminants with potential neurotoxic potential, eco-neurotoxicity should be also...
Tipo: Text
Palavras-chave: Eco-neurotoxicity; Neurotoxicity; EDA; REACH; AOP; Behaviour; Computational toxicity; Ecological; Species.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00473/58477/61058.pdf

Is generalization of exhaled CO assessment in primary care helpful for early diagnosis of COPD?
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Molinari, Nicolas; Abou-badra, Mathieu; Marin, Gregory; Ky, Chin-long; Amador, Noemi; Gamez, Anne Sophie; Vachier, Isabelle; Bourdin, Arnaud.
Background: COPD is largely under-diagnosed and once diagnosed usually at a late stage. Early diagnosis is thoroughly recommended but most attempts failed as the disease is marginally known and screening marginally accepted. It is a rare cause of concern in primary care and spirometry is not very common. Exhaled carbon monoxide (eCO) is a 5-seconds easy-to-use device dedicated to monitor cigarette smoke consumption. We aimed to assess whether systematic eCO measurement in primary care is a useful tool to improve acceptance for early COPD diagnosis. Methods: This was a two-center randomized controlled trial enrolling 410 patients between March and May, 2013. Whatever was the reason of attendance to the clinic, all adults were proposed to measure eCO during...
Tipo: Text
Palavras-chave: COPD; Screening; Exhaled CO; Smoking; Behaviour.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00270/38142/36280.pdf

Le répulsif à cétacés : performances acoustiques requises
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Gall, Yves; Origne, Laurent; Scalabrin, Carla; Morizur, Yvon.
Acoustic deterrent devices could be an appealing solution to tackle accidental cetacean by-catches in pelagic trawls or in fishing net gears. The bibliographical data on two species (Harbour porpoise and bottlenosed dolphin) have been analyzed in terms of audiogram, discomfort noise level that could lead to behavioural changes, sensory fatigue, and threshold for permanent hearing injuries. It is possible, on the basis of the above data, to characterize an efficient annoyance sound threshold which is not harmful to the species to be protected. Taking into account the properties of the sound waves propagation in the marine environment and according to the required range, the minimal amplitude of the repulsive sound to emit is proposed. Accordingly, the...
Tipo: Text
Palavras-chave: Wave propagation; Behaviour; Audiogram; Capture; Cetacean; In fishing net gear; Pelagic trawl; Acoustic deterrent; Propagation onde; Comportement; Audiogramme; Capture; Cétacé; Filet; Pêche artisanale; Chalutage pélagique; Répulsif acoustique.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-1124.pdf

Aggregation processes of Tuna under Drifting Fish Aggregating Devices (DFADS) assessed through fisher's echosounder buoy in the Indian Ocean
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Baidai, Y; Dagorn, Laurent; Amande, Mj; Gaertner, Daniel; Capello, Manuela.
The aggregative behavior of tuna around floating object is widely exploited by the industrial purse-seine fishery, which deploy thousands of floating objects each year in all oceans in order to improve their catches. These fish aggregating devices (FADs) are generally equipped with echosounder buoys that can collect acoustic data, conferring to these devices the status of privileged observation platforms for the fish communities that aggregate. Using a classification model based on supervised learning algorithms trained on M3I buoy data, we were able to translate the acoustic data collected along the trajectories of 5748 drifting FADs newly deployed between 2016 and 2018 in the Indian Ocean into presence or absence of tuna aggregation. Analysis of the...
Tipo: Text
Palavras-chave: Echosounders; Drifting fish aggregating devices (FAD); Tropical tunas; Behaviour.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00615/72694/71700.pdf

The new fisheries multibeam echosounder ME70: description and expected contribution to fisheries research
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Trenkel, Verena; Mazauric, Valerie; Berger, Laurent.
Recently, Simrad in collaboration with Ifremer developed a calibrated, multibeam, vertical echosounder (ME70) for fisheries research. We describe its capabilities and technical limitations. The ME70 has up to 45 beams with distinct frequencies in the range 70120 kHz, spanning at most 150 degrees. All beams are stabilized in vessel roll and pitch. It has reduced side-lobe levels, up to -70 dB (two-way) instead of the -2S dB (one-way) of conventional systems. We outline research areas for which the ME70 might provide new types of information and hence lead to novel insights. We illustrate the potential contributions with datasets collected in the English Channel and on the continental-shelf break of the Bay of Biscay. Finally, future research and...
Tipo: Text
Palavras-chave: Three dimensional; Behaviour; Acoustics; Abundance.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4117.pdf

Stock collapses and their recovery: mechanisms that establish and maintain life-cycle closure in space and time
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Petitgas, Pierre; Secor, Dave H.; Mcquinn, Ian; Huse, Geir; Lo, Nancy.
Experience has established that the recovery of many collapsed stocks takes much longer than predicted by traditional fishery population models. We put forward the hypothesis that stock collapse is associated with disruption of the biological mechanisms that sustain life-cycle closure of intrapopulation contingents. Based on a review of case studies of nine marine fish stocks, we argue that stock collapses not only involve biomass loss, but also the loss of structural elements related to life-cycle diversity (contingents), as well as the breakdown of socially transmitted traditions (through a curtailed age range). Behavioural mechanisms associated with these structural elements could facilitate recovery of depleted populations. Migratory behaviour is...
Tipo: Text
Palavras-chave: Behaviour; Collapse; Life-cycle diversity; Recovery.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00021/13186/10262.pdf

Behavioural and biochemical responses of two marine invertebrates Scrobicularia plana and Hediste diversicolor to copper oxide nanoparticles
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Buffet, Pierre-emmanuel; Tankoua, Olivia Fossi; Pan, Jin-fen; Berhanu, Deborah; Herrenknecht, Christine; Poirier, Laurence; Amiard-triquet, Claude; Amiard, Jean-claude; Berard, Jean-baptiste; Risso, Christine; Guibbolini, Marielle; Romeo, Michele; Reip, Paul; Valsami-jones, Eugenia; Mouneyrac, Catherine.
Engineered nano-sized Cu oxide particles are extensively used in diverse applications. Because aquatic environments are the ultimate "sink" for all contaminants, it is expected that nanoparticles (NP) will follow the same fate. In this study, two marine invertebrates Scrobicularia plana and Hediste diversicolor were chosen as ecotoxicological models. The aim was to evaluate behavioural (burrowing kinetics, feeding rate) and biochemical (biomarkers) responses of S. plana and H. diversicolor exposed in the laboratory to Cu (10 mu g L(-1)) added in natural seawater either in the form of engineered nanoparticles (NPs) of CuO or as dissolved Cu in 2% HNO(3). Exposure was characterized by considering (i) the physico-chemical fate of NP (ii) the fraction of...
Tipo: Text
Palavras-chave: Copper oxide nanoparticles; Behaviour; Biomarkers; Oxidative stress; Scrobicularia plana; Hediste diversicolor.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00040/15140/15856.pdf

Temperature resistance of Hesiolyra bergi, a polychaetous annelid living on deep-sea vent smoker walls
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Shillito, Bruce; Jollivet, Didier; Sarradin, Pierre-marie; Rodier, Philippe; Lallier, François; Desbruyeres, Daniel; Gaill, Françoise.
For the first time, in vivo heat-exposure experiments were conducted on the hydrothermal vent polychaete Hesiolyra bergi from the hottest part of the vent biotope. Using a pressurised incubator equipped with video-facilities, we found that H. bergi, which forages around and in the tubes of the thermophilic Alvinella sp., became hyperactive once temperature exceeded 35 degreesC and further lost co-ordination in the 41 to 46 degreesC interval, just before death occurred. Another exposure experiment at 39 degreesC for 3 to 4 h led to 80 % mortality (max) 9 h after heat shock, and 100 % thereafter. In view of the much higher temperatures recorded in this organism's habitat, these results suggest that tolerance to high temperatures (exceeding 40 degreesC) is...
Tipo: Text
Palavras-chave: IPOCAMP; Adaptation to heat; Behaviour; Hydrothermal vents.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/publication-811.pdf

Ecologie du système hôte - parasite, juvéniles G0 de sole (Solea solea) - métacercaires de Digènes : dynamique et effets de l'infestation
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Durieux, Eric.
Coastal areas, such as shallow water bays and estuaries, serve as nurseries for juveniles of many marine fishes and especially flatfishes. Parasites play an important role in these marine ecosystems, but it remains poorly studied. Little attention has been paid to parasitism as a potential factor of variation in flatfish juveniles biological performances in these habitats. Sole juveniles, Solea solea (Pleuronectiformes, Soleidae), that is a species of primary importance for fisheries, are infected by digenean metacercariae. Thus, the aims of this PhD thesis were: i) to determine the spatio-temporal dynamics of the digenean metacercariae infection of 0-group sole juveniles at different scales; ii) to estimate the effects of this infection at different...
Tipo: Text
Palavras-chave: North East Atlantic; Mussel farming; Biological tags; Behaviour; Condition indices; Growth; Immunity; Parasitism; Flatfish; Nurseries; Atlantique Nord Est; Mytiliculture; Marqueurs biologiques; Comportement; Indices de condition; Croissance; Immunité; Parasitisme; Pleuronectiformes; Nourriceries.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/these-2933.pdf

Changes in Brain Monoamines Underlie Behavioural Disruptions after Zebrafish Diet Exposure to Polycyclic Aromatic Hydrocarbons Environmental Mixtures
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Vignet, Caroline; Trenkel, Verena; Vouillarmet, Annick; Bricca, Giampiero; Begout, Marie-laure; Cousin, Xavier.
Zebrafish were exposed through diet to two environmentally relevant polycyclic aromatic hydrocarbons (PAHs) mixtures of contrasted compositions, one of pyrolytic (PY) origin and one from light crude oil (LO). Monoamine concentrations were quantified in the brains of the fish after six month of exposure. A significant decrease in noradrenaline (NA) was observed in fish exposed to both mixtures, while a decrease in serotonin (5HT) and dopamine (DA) was observed only in LO-exposed fish. A decrease in metabolites of 5HT and DA was observed in fish exposed to both mixtures. Several behavioural disruptions were observed that depended on mixtures, and parallels were made with changes in monoamine concentrations. Indeed, we observed an increase in anxiety in fish...
Tipo: Text
Palavras-chave: Monoamine; Polycyclic aromatic hydrocarbons; Behaviour; Anxiety; Swimming activity; Zebrafish.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00375/48578/48900.pdf

Activity budget and behavioural patterns of free-ranging yellow-tailed woolly monkeys Oreonax flavicauda (Mammalia: Primates), at La Esperanza, northeastern Peru
Provedor de dados: Naturalis Digital Academic Repository
Autores: Shanee, S.; Shanee, N.
The critically endangered yellow-tailed woolly monkey (Oreonax flavicauda) is endemic to the cloud forests of north-eastern Peru and one of the least studied of all primate species. We conducted fifteen months of group follows using focal animal sampling techniques to gather the first behavioural data on free ranging O. flavicauda. Group follows took place in an area of disturbed primary and regenerating secondary forest near the village of La Esperanza, Amazonas department. Yellow-tailed woolly monkey activity budgets at La Esperanza average: 29.8% feeding, 26.3% resting, 29.0% travelling, 2.3% in social and 12.8% in other activities. Significant differences were observed in the frequency of behaviours between age/sex classes as well as on temporal...
Tipo: Article / Letter to the editor
Palavras-chave: Atelidae; Behaviour; Cloud forest; Lagothrix; 42.84.
Ano: 2011
URL: http://www.repository.naturalis.nl/record/402022

Locomotory behaviour and functional morphology of Nematostella vectensis (Anthozoa: Actiniaria: Edwardsiidae): a contribution to a comparative study of burrowing behaviour in athenarian sea anemones
Provedor de dados: Naturalis Digital Academic Repository
Autores: Williams, R.B.
The locomotory behaviour and functional morphology of English populations of a small (&lt;2 cm long), burrowing athenarian sea anemone, Nematostella vectensis Stephenson, 1935 (= N. pellucida Crowell, 1946), which lives in soft mud in salt marshes and creeks, are described. Objectives were to ascertain the specific stimuli and environmental conditions determining when and how locomotion is employed, and to assess survival values. Experimentation and anatomical examination revealed how anemones move, and their functional morphology was interpreted in a physiological context. Finally, locomotion, morphology and habitat were compared for several athenarian anemones, to ascertain what correlations there are, if any. Essential environmental conditions for N....
Tipo: Article / Letter to the editor
Palavras-chave: Behaviour; Burrowing; Climbing; Creeping; England; Functional morphology; Locomotion; Musculature; Nematostella vectensis; Rugae; Sea anemones; 42.79.
Ano: 2003
URL: http://www.repository.naturalis.nl/record/220581

Possible chemical mimicry of the European lady’s slipper orchid (Cypripedium calceolus)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Przybyłowicz, T.; Roessingh, P.; Groot, A.T.; Biesmeijer, J.C.; Oostermijer, J.G.B.; Chittka, L.; Gravendeel, B.
Pollination based on insect deception has been debated in the scientific community since it was first reported over two hundred years ago. A vast majority of deceptive syndromes occur within the orchid family. While many cheating flowers have been described and are well known, there are still many curious cases that need further investigation. One prime example of such a case is Cypripedium calceolus, known as European lady’s slipper orchid. While the flower has been of interest to many prominent scientists for over a century, its pollination is still not fully understood. Both visual and olfactory cues seem to play an important role in pollinator attraction. In this study we focussed on the olfactory cues in order to explore their relationship (in future...
Tipo: Article / Letter to the editor
Palavras-chave: Bees; Behaviour; Chemical mimicry; Deception; EAG; Pollination; 42.75.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/419174

How do the molluscivorous beetles Carabus granulatus and Phosphuga atrata (Insecta, Coleoptera) deal with sinistral and dextral prey?
Provedor de dados: Naturalis Digital Academic Repository
Autores: Bergamin, Susan; Smits, Anne.
Predators of asymmetric prey (such as snails) are often  asymmetric themselves or display a predation behaviour that  is adapted to the asymmetry of their prey. We studied predation  of sinistral and dextral forms of the freshwater snail  Lymnaea stagnalis (Linnaeus, 1758) by two snail-feeding  beetle species, Phosphuga atrata (Linnaeus, 1758) and  Carabus granulatus Linnaeus, 1758. We investigated a possible  preference for or more efficient predation of prey items  with a certain coiling direction. We found that C. granulatus  displayed a preference for dextral snails, as opposed to P.  atrata, which did not show any preference. We also looked at  the asymmetry of the mandibles. In C. granulatus the left  mandible overlay the right one in a higher...
Tipo: Article / Letter to the editor
Palavras-chave: Carabidae; Silphidae; Lymnaea stagnalis; Molluscivory; Chirality; Predation; Behaviour; Mouth parts.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/588051

Observations on the behaviour of the dugong (Dugong dugon Müller, 1776) from waters of the Lease Islands, eastern Indonesia
Provedor de dados: Naturalis Digital Academic Repository
Autores: Iongh, H.H. de; Bierhuizen, B.; Orden, B. van.
A small population of dugongs was discovered in coastal waters of the Lease islands in eastern Indonesia. Studies on behaviour and feeding ecology revealed information on the interaction with seagrass meadows, modes of surfacing and submergence times and behaviour in the presence of scuba divers. Regular concentrated feeding was observed in a grazing sward at a subtidal monospecific Halophila ovalis meadow, confirming earlier observations of regular recropping by dugongs of grazing swards, covered by monospecific Halodule uninervis, inside an intertidal multi-species meadow.
Tipo: Article / Letter to the editor
Palavras-chave: Dugong; Behaviour; Feeding ecology; Cultivation grazing.
Ano: 1997
URL: http://www.repository.naturalis.nl/record/534409

Observations on the symbiosis between Colus gracilis (Da Costa, 1778) (Mollusca: Gastropoda) and Hormathia digitata (O.F. Müller, 1776) (Cnidaria: Actiniaria)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Ates, R.M.L.
Aquarium observations of the behaviour of the actinian Hormathia digitata when mounting live specimens of the gastropod Colus gracilis are fully described for the first time. C. gracilis actively initiates an association with H. digitata by approaching and remaining stationary near the actinian.
Tipo: Article / Letter to the editor
Palavras-chave: Colus gracilis; Hormathia digitata; Gastropoda; Actiniaria; Symbiosis; Behaviour; Shell mounting; Aquarium observations.; 42.72; 42.73.
Ano: 1998
URL: http://www.repository.naturalis.nl/record/317821

Opportunistic feeding behaviour of rough-toothed dolphins Steno bredanensis off Mauritania
Provedor de dados: Naturalis Digital Academic Repository
Autores: Addink, M.J.; Smeenk, C.
A small group of rough-toothed dolphins Steno bredanensis was observed at the outer edge of the Banc d’Arguin, Mauritania. The animals were feeding opportunistically around a trawling research vessel. Hunting behaviour and mother-calf interactions are described
Tipo: Article / Letter to the editor
Palavras-chave: Steno bredanensis; Delphinidae; Rough-toothed dolphin; Mauritania; Behaviour; Opportunistic feeding; Mother-calf interaction; 42.84.
Ano: 2001
URL: http://www.repository.naturalis.nl/record/219447

Proceedings of the Third International Megapode Symposium, Nhill, Australia, December 1997  [contents and introduction]
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dekker, R.W.R.J.; Jones, D.N.; Benshemesh, J.
Tipo: Article / Letter to the editor
Palavras-chave: Megapodiidae; Galliformes; Aves; Biogeography; Phylogeny; Behaviour; Ecology; Conservation; Bibliography; 42.83.
Ano: 1999
URL: http://www.repository.naturalis.nl/record/219415

Cues for territory choice in two tropical dragonflies
Provedor de dados: Neotropical Entomology
Autores: Marco Jr.,Paulo de; Resende,Daniela C.
Classifications in mate systems of Odonata are generally based in the male ability to control the female access to oviposition resources. In this paper we discuss the criteria for male territory selection in the dragonflies Perithemis mooma Kirby and Orthemis discolor (Burmeister) (Libellulidae), in Viçosa, Brazil, controlling the availability of perches and aquatic vegetation. P. mooma males defended territories with vegetation and thus their choice was probably related to the oviposition resource of the females. O. discolor males preferred sites with tall perches, possibly because their choice was related to a mate-seeking resource. Interactions with another libellulid more active and aggressive, Planiplax phoenicura (Ris), changed the preference of O....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Odonata; Behaviour; Mating; Perithemis mooma; Orthemis discolor.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000400001

The chemical volatiles (Semiochemicals) produced by neotropical stink bugs (Hemiptera: Pentatomidae)
Provedor de dados: Neotropical Entomology
Autores: Moraes,Maria C.B.; Pareja,Martín; Laumann,Raúl A.; Borges,Miguel.
In recent years the growing concern about environmental changes and how we are using the natural resources have triggered a search for natural products as alternatives to synthetic pesticides. The stink bugs produce a wide variety of chemical compounds (semiochemicals) that show potential to manage these insects. The stink bugs Chinavia impicticornis (Stål), C. ubica (Rolston), Dichelops melacanthus (Dallas), Euschistus heros (F.), Piezodorus guildinii (Westwood), Thyanta perditor (Westwood) and Tibraca limbativentris (Stål) had their blends of defensive compounds evaluated both qualitative and quantitatively. The main compounds identified on the glands of Brazilian stink bugs are: 2-alkenals, mainly the E isomer; saturated aliphatic hydrocarbons; and 4...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pheromone; Allelochemical; Aggregation; Behaviour; Soybean.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000500001

Impact of ecotourism on the fish fauna of Bonito region (Mato Grosso do Sul State, Brazil): ecological, behavioural and physiological measures
Provedor de dados: Neotropical Ichthyology
Autores: Lima,Ana Carolina; Assis,Jorge; Sayanda,Diogo; Sabino,José; Oliveira,Rui F.
Bonito, in Mato Grosso do Sul State, is an important destination for ecotourism in Brazil and the main challenge of sustainable ecotourism here has been to accommodate and adjust the increase of tourism without compromising the ecological integrity of the local ecosystems. In this study we aimed to assess the environmental impact of ecotourism on the fish fauna of Sucuri River in Bonito by integrating ecological, behaviour and physiological criteria and using the fish species Crenicichla lepidota and Moenkhausia bonita as indicators. Two distinct sites were defined to collect data: (1) affected daily by ecotourism (Tourism) and (2) undisturbed (No Tourism). The "stationary point count" method was performed to assess variations in ecological parameters and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behaviour; Cortisol; Crenicichla lepidota; Moenkhausia bonita; Stress response.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000100133

Antipredator and alarm reaction responses of silver catfish (Rhamdia quelen) juveniles exposed to waterborne ammonia
Provedor de dados: Neotropical Ichthyology
Autores: Weber,Paula; Vogel,Carina; Lang,Carla; Baldisserotto,Bernardo.
Ammonia has relatively toxic effects on fish and other aquatic organisms. This study examined whether juvenile silver catfish exposed to alarm substances released by conspecifics and predators in water with different ammonia levels modify their behaviour in response to the perceived risk of predation. We used juvenile catfish that were naive to predators. The fish were raised from the larval stage in the laboratory and kept in 40-L aquaria at waterborne NH3 concentrations of 0, 0.05, 0.1, or 0.2 mg L-1 for 10 days. The alarm substances used were predator odour and skin extract from conspecifics. The juveniles were transferred to 2-L aquaria for the antipredator and alarm reaction behavioural tests, which were performed on days 1, 5 and 10 after initial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alarm substance; Behaviour; Predator odour; Skin extract; Un-ionised ammonia.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200020

Vergleich des Fortpflanzungsverhaltens einiger Pomacentriden, Cichliden und Centrarchiden (Pisces: Perciformes)
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Albrecht, H.
Comparando el comportamiento de reproducción de las tres familias percomorfas, Cichlidae, Pomacentridae y Centrarchidae, resultan relaciones claras entre las dos familias últimamente mencionadas. Las Cichlidae son diferentes de ellas. Sin embargo todavía no se deduce relaciones parentescas, basando en el material observado.
Tipo: Journal Contribution
Palavras-chave: Behaviour; Fish; Fish; Behaviour; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_868.
Ano: 1968
URL: http://hdl.handle.net/1834/3312

Einige Ergebnisse aus Feldbeobachtungen an Phyllobates palmatus (Amphibia, Ranidae) in Kolumbien
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Lüddecke, H.
Se presentan datos sobre el comportamiento y la ecología de Phyllobates plamatus, una rana, la cual hasta el momento solamente ha sido encontrada en Colombia. la especie vive exclusivamente cerca del agua. Con frecuencia forma agrupaciones de muchos individuos en un área bien definida. Dentro de este viven en su mayoría en territorios individuales. Los machos prefieren puntos elevados de su territorio como lugar para sus cantos. Se observaron tres tipos de campos: El primer tipo parece tener la función de un canto de apareamiento; el segundo está, probablemente, relacionado con la defensa del territorio y el tercer tipo de canto se observa solamente inmediatamente ante la introducción a la postura de los huevos. A menudo se observan cantos alternos entre...
Tipo: Journal Contribution
Palavras-chave: Ecology; Behaviour; Ecology; Behaviour; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_868.
Ano: 1976
URL: http://hdl.handle.net/1834/3272

Observaciones sobre el comportamiento de la merluza (Merluccius hubbsi) durante la pesca de arrastre
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Casarsa, L.; Madirolas, A.
The normal behavioral patterns of several fish species is altered during trawling affecting the fish spatial distribution. Sonar methods were carried out in this research work in order to study the reaction of reproductive concentrations of the Argentine hake (Merluccius hubbsi) during mid-water and bottom fishing trawls. Observations made from a trawl sonar mounted on the headrope of an ENGEL (35 m) bottom trawl, showed that this species concentrates at the lower-central sector of the net mouth. During daytime trawls fish schools with a vertical distribution exceeding ten meters were observed entering the trawl within the first two meters from the bottom. Some observations during pelagic trawls carried out at night, showed no specific pattern at the net...
Tipo: Journal Contribution
Palavras-chave: Behaviour; Bottom trawling; Sonar; Echo surveys; Vertical distribution; Behaviour; Http://aims.fao.org/aos/agrovoc/c_868.
Ano: 2007
URL: http://hdl.handle.net/1834/2517

Aspectos biológicos del calamar Illex argentinus
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Leta, H.R.
La creciente importancia que los recursos de calamar han adquirido en 105 últimos 30 años, los sitúa actualmente entre los más importantes recursos pesqueros del mundo. En consecuencia, paises tradicionalmente no explotadores o consumidores de productos de calamar, han orientado sus esfuerzos hacia el logro de un mejor conocimiento de las especies de cefalópodos que habitan su ambiente marino. En este sentido el aporte de disciplinas tales como la biología ha sido decisivo para desarrollar en forma exitosa pesquerías de calamar, entre otras.El programa de investigaciones del Instituto Nacional de Pesca para 1980 incluyó el estudio integral de la explotación de los calamares como un primer paso hacia el desarrollo de una pesquería del recurso.  Este trabajo...
Tipo: Report
Palavras-chave: Biology; Environmental conditions; Population structure; Spawning; Spawning grounds; Sex ratio; Sexual maturity; Reproduction; Length; Behaviour; Migrations; Growth; Population structure; Spawning; Length; Growth; Biology; Environmental conditions; Spawning grounds; Sex ratio; Sexual maturity; Reproduction; Behaviour; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_14490; Http://aims.fao.org/aos/agrovoc/c_4260; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_925; Http://aims.fao.org/aos/agrovoc/c_32980; Http://aims.fao.org/aos/agrovoc/c_7277; Http://aims.fao.org/aos/agrovoc/c_7014; Http://aims.fao.org/aos/agrovoc/c_7016; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_868.
Ano: 1981
URL: http://hdl.handle.net/1834/2563

Notes on mating behaviour and a possible new host plant for Megacyllene angulata (Fabricius, 1775) (Cerambycidae, Coleoptera)
Provedor de dados: Papéis Avulsos de Zoologia
Autores: Nascimento,Francisco Eriberto de Lima; Mendes,Diego Matheus de Mello; Silva Neto,Alberto Moreira da.
Abstract The mating behavior of M. angulata (Fabricius, 1775) is described, illustrated and discussed. Additionally, we also comment on the possible new host plant of this species based on two plants (Luehea cymulosa Spruce ex Benth. (Malvaceae) and Doliocarpus dentatus (Aubl.) Standl (Dilleniaceae) on which copulation occurs.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon region; Behaviour; Ecology; Longhorned beetle.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492020000100204

Explaining Variation in Farm and Farm Business Performance in Respect to Farmer Segmentation Analysis
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Wilson,   Paul; Harper,   Nicholas; Darling,   Richard.
Results from a pilot application of Defra’s segmentation model applied to the Farm Business Survey for England are presented. Interviews with 750 FBS co-operators during 2010, using a discursive approach, classified co-operators into one of five segmentation groups: Custodians (14.0%); Lifestyle Choice (7.2%); Pragmatists (53.3%); Modern Family Business (21.1%); Challenged Enterprises (4.4%). On average, Modern Family Businesses operated the largest land area, achieved the greatest farm financial (and agricultural) output, and Farm Business Income (FBI), whilst the Lifestyle Choice segment returned the lowest average FBI. Variation in regional tendencies across the segmentation groups was observed, with variation also noted for forms of business, LFA and...
Tipo: Conference Paper or Presentation
Palavras-chave: Behaviour; Segmentation; Income; Output; Agriculture; Farm Management; D22; Q12; Q14; Q15; Q16; R52.
Ano: 2011
URL: http://purl.umn.edu/108783

Using involvement to understand responses to biosecurity
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Bewsell,   Denise; Bigsby,   Hugh R.; Cullen,   Ross.
The effectiveness of biosecurity measures at national borders is influenced by the behaviour and levels of involvement of travellers. Involvement is the importance or relevance of an object or situation to an individual. Involvement helps regulate the way in which people receive and process information and thus influences the extent of information searching for decision making, and information processing and persuasion. In this study, we drew on the concept of involvement to investigate the response of individuals to New Zealand biosecurity requirements. A range of people associated with the agricultural and food processing sectors were surveyed using a five item scale of involvement to measure their level of involvement in biosecurity. The results...
Tipo: Conference Paper or Presentation
Palavras-chave: Behaviour; Involvement; Biosecurity; Travellers; Information processing; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Land Economics/Use.
Ano: 2009
URL: http://purl.umn.edu/97134

Investigating consumer knowledge and behaviour in the context of functional foods
Provedor de dados: Research in Agricultural & Applied Economics (AgEcon Searh)
Autores: Hall,   Clare.
The future of functional foods will depend on the extent to which they are accepted by consumers. Results are presented from a questionnaire that investigated consumers’ self-reported knowledge, behavioural intentions and purchasing behaviour regarding functional foods. Findings are that two thirds of UK respondents, just less than half of Danish respondents, almost two thirds of Spanish respondents, and 88% of Polish respondents say they buy one or two functional food items per week. Between 30-55% of respondents say they understand functional foods reasonably well (UK 55%; Denmark 30%; Spain 43%; Poland 49%). A number of factors were related to respondents’ stated intention to purchase probiotics. If someone in the household had suffered food poisoning...
Tipo: Conference Paper or Presentation
Palavras-chave: Consumers; Knowledge; Behaviour; Functional foods; Food Consumption/Nutrition/Food Safety.
Ano: 2009
URL: http://purl.umn.edu/58024

Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Stivanin,Sheila Cristina Bosco; Werncke,Daíse; Vizzotto,Elissa Forgiarini; Stumpf,Marcelo Tempel; Thaler Neto,André; Fischer,Vivian.
ABSTRACT The objective was to investigate the effects of available shaded area on behavioural characteristics of lactating cows during the warm season in the subtropics. Twelve Holstein cows were divided into groups, with 2 (SH2) or 10 m2 (SH10) of available shade per cow (six cows per treatment). The behaviour was recorded when animals were grazing from 09.00 to 16.00 h (GMT −02.00 h) throughout the trial. Data considered in the statistical analysis were restricted to the five days when the maximum temperature was ≥ 25 °C. Cows in the SH10 group had lower panting score, but higher proportions of time in shade and lying down and stayed more time per visit in the shaded area than cows in the SH2 group. Cows in the SH10 group had less events of competition...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal welfare; Behaviour; Dairy cows; Heat stress; Lactation; Shade.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100202

Comparison of extensive and intensive pig production systems in Uruguay in terms of ethologic, physiologic and meat quality parameters
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Blumetto Velazco,Oscar Ricardo; Calvet Sanz,Salvador; Estellés Barber,Fernando; Villagrá García,Arantxa.
The objective of this work is to characterize two contrasting systems of fattening pigs in Uruguay. A total of 96 pigs (average 41.7 kg) were divided into eight groups of 12 animals, representing two production systems: (IN) pigs confined in pens of 12 m² or (OUT) kept in plots with field shelters and access to pasture. Behavioral observations were performed by scan sampling at 5-minute intervals, three times a day during weeks 6, 8, 10 and 12 of the experiment. Aggressions were also observed at the end of the experimental period. Blood samples were taken for cortisol analysis and other physiological parameters, during growth period and slaughter and meat quality characteristics were assessed after slaughter. Differences were found in carcass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aggressions; Behaviour; Housed pig; Outdoor pig; Pasture.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000700009

Effects of preoperative epidural morphine and ingramuscular buprenorphones in pigs subjected to abdominal surgery: a pilot study
Provedor de dados: Revista Scientia Agraria Paranaensis
Autores: L. M. Malavasi; Unioeste; M. Jensen-Warern; H. Augustsson; J. E. Lindberg; G. Nyman.
Nove su&amp;iacute;nos (25 + 1kg) foram anestesiados com medetomidina (0,05 mg/kg, IM) e tiletamina-zolazepam (5 mg/kg, IM), e a anesthesia foi mantida com isofluorano. Grupo M recebeu morfina epidural (0,12) mg/kg; n=5) pr&amp;eacute; &amp;ndash; operativamente. Grupo B recebeu buprenorfina intramuscular (0,1 mg/kg; n=4) antes e 12 h ap&amp;oacute;s a cirurgia. Par&amp;acirc;metros cardiorrespirat&amp;oacute;rios foram mensurados a cada 10 min. O comportamento pr-e e p&amp;oacute;s operat&amp;oacute;rio foram gravados num total de 60h/su&amp;iacute;no. Os par&amp;acirc;metros fisiol&amp;oacute;gicos e as concentra&amp;ccedil;&amp;otilde;es s&amp;eacute;ricas dos opi&amp;oacute;ides foram avaliados pela an&amp;aacute;lise de vari&amp;acirc;ncia (ANOVA);...
Tipo: Artigo Avaliado por Pares
Palavras-chave: Anaesthesia; Analgesia; Cardiorespiratory parameters; Pain assesmenten; Behaviour.
Ano: 2009
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/2023

Movement of Heterorhabditis amazonensis and Steinernema arenarium in search of corn fall armyworm larvae in artificial conditions
Provedor de dados: Scientia Agricola
Autores: Andaló,Vanessa; Santos,Viviane; Moreira,Grazielle F.; Moreira,Camila; Freire,Marcela; Moino Jr.,Alcides.
Spodoptera frugiperda (Smith, 1797) (Lepidoptera: Noctuidae) is considered to be the main pest of maize crops in Brazil. Entomopathogenic nematodes (EPN) may be used to control this pest and exhibit different, unique abilities to search for their hosts. The movement of EPN in relation to S. frugiperda was evaluated. To test for horizontal movement, a styrofoam enclosure filled with sand was divided into segments, nematodes were placed at the entrance to the enclosure and a larva was placed at the end of each division. The same approach was used to evaluate vertical movement; however, PVC pipes were used in this case. In general, the mortality was inversely proportional to the initial distance between host and nematodes. In the vertical displacement test,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spodoptera; Biological control; Behaviour; Strategy; Entomopathogenic.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000300008

บทบาทของเชื้อแบคทีเรียในทางเดินอาหารของแมลงวันผลไม้ (Diptera: Tephritidae)
Provedor de dados: Thai Agricultural Research Repository
Autores: Narit Thaochan.
Tipo: PhysicalObject
Palavras-chave: Fruit flies; Diptera; Tephritidae; Bactrocera dorsalis; Enterobacteriaceae; Symbiosis; Parasitism; Gut bacteria; Biodiversity; Behaviour; Growth; แมลงวันผลไม้; เชื้อแบคทีเรีย; ภาวะแบบพึ่งพาอาศัยกัน; ภาวะที่เป็นโทษต่อกัน; ทางเดินอาหาร; ความหลากหลายทางชนิด; กระบวนการเจริญเติบโต; การแสดงพฤติกรรม; การควบคุมประชากร; การควบคุมแมลงวันผลไม้.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5765

Pesca associada entre golfinhos e aves marinhas
Provedor de dados: Zoologia
Autores: Monteiro-Filho,Emygdio L. A.
Along ten years of study of a common dolphin from the brazilian coast, Sotalia brasiliensis Van Beneden, 1874, I could see some occasions of feeding associations of this dolphin with five species of birds, Sula leucogaster (Boddaert, 1783), Fregata magnificens Mathews, 1914, Sterna hirundinacea Lesson, 1831, Larus dominicanus Lichtenstein, 1823 and Phalacrocorax olivaceus Humboldt, 1895. The commonest association observed was between the dolphin and S. leucogaster, and in all the associations was characterized the commensalism, with advantaged to the birds.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sotalia; Cetacea; Sea birds; Feeding; Behaviour.
Ano: 1992
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751992000100005

Natural history of three Hydropsychidae (Trichoptera, Insecta) in a "cerrado" stream from northeastern São Paulo, Brazil
Provedor de dados: Zoologia
Autores: Oliveira,Leandro Gonçalves; Froehlich,Claudio Gilberto.
The faunal composition of the Hydropsychidae (Trichoptcra) of Pedregulho Stream is presented. Feeding habits of larvae and behavioural aspects of both larvae and adults are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoptera; Hydropsychidae; Smicridea; Leptonema; Biology; Larvae; Behaviour.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300023

Seasonal and daily patterns of group size, cohesion and activity of the estuarine dolphin, Sotalia guianensis (P.J. van Bénéden) (Cetacea, Delphinidae), in southern Brazil
Provedor de dados: Zoologia
Autores: Daura-Jorge,Fábio G.; Wedekin,Leonardo L.; Piacentini,Vítor de Q.; Simões-Lopes,Paulo C.
The resident population of estuarine dolphin, Sotalia guianensis (P.J. van Bénéden, 1864), in Norte Bay, Santa Catarina, southern Brazil, was studied from 2000 to 2003. Systematic one-day cruises were undertaken aboard a 5 m sail boat equipped with an outboard motor. Applying the focal-group method, information such as geographical position, predominant behavioural patterns, group size, cohesion index and the presence of calves, were registered at every five-minute interval, totalling 198 hours of direct observation of the dolphins. The estuarine dolphin used preferential areas for each behavioural pattern. The mean group size was approximately 29 individuals, and the presence of calves occurred throughout the entire year, but with a significant increase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behaviour; Ecology; Group organization; Norte Bay; Temporal patterns.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400029

Behaviour and orcadian rhythm of the fish bathygobius soporator Valenciennes (Gobiidae) under the influence of environmental salinity and temperature
Provedor de dados: Zoologia
Autores: Fanta,Edith.
The behavioural patterns and their cireadian rhythms may be adaptive to the peculiar environmental conditions of subtropical brackish waters where Ba-thygobius soporator Valenciennes, 1837 live. Adult fish were caught at the southern Brazilian coast from mangrove rivers and rocky shores in a bay, where temperature and water salinity vary during the day and through the year. Observation on the behaviour of the animals was undertaken in salinity 8.5ppt, 17.0ppt, 25.5ppt and 34.0ppt, each one in temperatures of 18ºC and 28ºC. Temperature and salinity affect the frequency and intensity of some of the behavioural events, more than its pattern or rhythm. Swimming is rare, decreasing along the day and with temperature increase, being even lower at low salinity;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bathygobius soporator; Fish; Behaviour; Cireadian rhythm; Salinity; Temperature.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100021

Comportamentos e atividade diária de Sciurus ingrami (Thomas) em cativeiro (Rodentia, Sciuridae)
Provedor de dados: Zoologia
Autores: Bordignon,Marcelo; Monteiro Filho,Emygdio L.A.
From October 1994 to November 1995 the behaviour, postures and diurnal activity of tive captive squirrels Sciurus ingrami were observed and registered. Four basics postures, five grooming behaviours, displacements and face wiping behaviour were identified. Based on behavioural observations, the diurnal activity was divided into four categories: resting, displacement, teeding and maintenance. The time spent in each category varied seasonally and the squirrels spent more time resting during winter and spring. However, more time was spent feeding during autum and summer and was reduced the displacement in autum. Two types of breeding behaviour were identified: sexual trailing and mating chase of females by males. However copulatori behaviour was not recorded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sciurus ingrami; Sciurids; Behaviour; Serelepe.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300019

Last instar larva of Microstigmus nigrophthalmus Melo (Hymenoptera, Crabronidae, Pemphredoninae), with notes on biology
Provedor de dados: Zoologia
Autores: Buys,Sandor Christiano.
The last instar larva of Microstigmus nigrophthalmus Melo, 1992 is described. It markedly differs from that of M. comes Krombein, 1967 the only other species in the genus whose mature larva have been described, for features as follows: presence of spinnerets; setae on the labrum, maxillae and labium; mandibles with tridentate apex and a bidentate lateral projection; lack of the conical supranal processo Notes on habitat, structure, and content of nests are also presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microstigmus nigrophthalmus; Sphecoid wasp; Morphology; Larva; Biology; Behaviour; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300004

Associative behaviour and antagonism of bovine rumen ciliate (Protista, Ciliophora) from Zona da Mata, Minas Gerais State, Brazil
Provedor de dados: Zoologia
Autores: D'Agosto,Marta; Guedes,Paulo Marcos da Matta.
Aiming at obtaining the community profile and verifying the occurrence of antagonism and association among ciliates, samples of rumen content were analysed in 100 bovines soon after their death. The animals were killed at the Juiz de Fora Municipal slaughter house (Juiz de Fora, Minas Gerais State, Brazil) between August 1996 and May 1997. Ciliates occurred, respectively, in the following percents and samples number: Entodinium Stein, 1859 (50,48; 100), Diplodinium Schuberg, 1888 (5,59; 98), Eudiplodinium Dogiel, 1927 (6,91; 97), Ostracodinium Dogiel, 1927 (9,68; 95), hotricha Stein, 1859 (4,15; 93), Dasytricha Schuberg, 1888 (3,31; 93), Metadi nium Awerinzew &amp;amp; Mutafowa, 1914 (3,06; 90), Eremoplastron Kofoid &amp;amp; MacLennan. 1932 (7,39; 87),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rumen ciliate; Behaviour; Bovine; Community profile; Antagonism.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400011

Fruit colour and edge effects poorly explains frugivorous bird-plant interactions in disturbed semideciduous forests
Provedor de dados: Acta Scientiarum: Biological Sciences
Autores: Pires, Luis Paulo; Gonçalves, Vanessa Fonseca; Ferreira, Giancarlo Ângelo; Camelo, Flávio Roque Bernardes; Melo, Celine de.
Fruit colour is considered an important feature mediating interactions between plants and frugivorous birds. Despite that, colour mediated interactions are context-dependent, and habitat disturbances may affect how frugivorous birds perceive fruit colours. This study assessed the influence of fruit colour and edge effect on the consumption of artificial fruits by frugivorous birds in three disturbed semideciduous forests in southeastern Brazil. In each of those areas, we performed a field experiment in which we placed artificial fruits of three different colours on plants and recorded their consumption by birds. Red-coloured fruits were ingested more often than yellow, but neither of them was consumed differently from dark-blue. Edge effect only affected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecologia frugivory; Behaviour; Plant signals; Sensory ecology; Plant-animal communication. Ecologia de interações.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/40041

Lecithotrophic behaviour in zoea and megalopa larvae of the ghost shrimp Lepidophthalmus siriboia Felder and Rodrigues, 1993 (Decapoda: Callianassidae)
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: Abrunhosa,Fernando A.; Simith,Darlan J.B.; Palmeira,Carlos A.M.; Arruda,Danielle C.B.
Food supply is considered critical for a successful culturing of decapod larvae. However, some species may present yolk reserve sufficient to complete their larval development without external food supply (known as lecithotrophic larval development). In the present study, two experiments were carried out in order to verify whether the callianassid Lepidophthalmus siriboia have lecithotrophic behaviour or, if they need external food for their larval development: Experiment 1, larvae submitted to an initial feeding period and Experiment 2, larvae submitted to an initial starvation period. High survival rate was observed in both experiments, in which only 2 megalopae and 1 zoea III died. These results strongly suggest that larvae of L. siriboia are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behaviour; Callianassidae; Larval development; Lecithotrophy; Lepidophthalmus siriboia; Starvation.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000400005

Behaviour and growth performance of low-birth-weight piglets cross-fostered in multiparous sows with piglets of higher birth weights
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Souza,L.P.; Fries,H.C.C.; Heim,G.; Faccin,J.E.; Hernig,L.F.; Marimon,B.T.; Bernardi,M.L.; Bortolozzo,F.P.; Wentz,I.
The aim of the study was to evaluate the behaviour, pre-weaning survival rate and growth performance of low birth weight (BW) piglets cross-fostered with piglets of higher weights. Piglets were transferred to 60 foster sows, and divided in three groups (G; n=20): G1- 12 low BW piglets (0.80 - 1.25kg); G2- six low BW piglets and six intermediate BW piglets (1.40 - 1.60kg), and G3- six low BW piglets and six high BW piglets (&gt;1.70kg). For the analysis, groups G2 and G3 were subdivided in LG2 (six G2 light piglets); IG2 (six G2 intermediate piglets), LG3 (six G3 light piglets), and HG3 (six G3 heavy piglets). Behavioural observations were carried out on days 1, 2, 4 and 6 (visual direct observation) and on days 3 and 5 (video recording) after birth. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piglet; Cross-fostering; Behaviour; Birth weight.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200027

Ethological parameters and performance of Hy Line W-98 and ISA Brown hens when housed in furnished cages
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Roll,V.F.B.; Levrino,G.A.M.; Briz,R.C.; Buil,T.
This study was carried out throughout a laying period to compare the behaviour and performance of two groups of commercial layers, 180 ISA Brown and 120 Hy line W98, housed at 17 weeks of age in furnished cages with a nest box, perches, dust-bath, and claw shortening device. Based on productive parameters, the model of furnished cages studied is suitable for both, Isa Brown and Hy line hens. The study suggested that strain has a significant effect on feather condition and on some behavioural displays, particularly those related to the use of a dust-bath.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hen; Behaviour; Dust-bath; Feather cover; Furnished cage.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000300033

A feeding association between Wilson's Storm-petrels Oceanites oceanicus (Kuhl, 1820) and Rough-toothed Dolphins Steno bredanensis (G. Cuvier in Lesson, 1828)
Provedor de dados: Biota Neotropica
Autores: Olmos,Fábio; Rotenberg,Elsie; Muscat,Edelcio.
On 06 October 2012 a pod of Rough-toothed Dolphins Steno bredanensis (Delphinidae) was observed catching and tearing apart several Castin Leatherjacks Oligoplites saliens (Carangidae) near Montão de Trigo Island, northern coast of São Paulo, Brazil. The resulting floating masses of viscera attracted a feeding aggregation of 120-150 Wilson's Storm-petrels Oceanites oceanicus (Hydrobatidae), a transequatorial migrant passing through the area during October. This interspecific association has not been recorded before, although it could be expected given that S. bredanensis feeds on large fish and O. oceanicus is a known scavenger of kills made by cetaceans such as Killer Whales.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Behaviour; Brazil; Feeding association; Kleptoparasitism; Oceanites oceanicus; Steno bredanensis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200303

Morphology of olfactory sensilla and its role in host plant recognition by Neomegalotomus parvus (Westwood) (Heteroptera: Alydidae)
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Ventura,Maurício Ursi; Panizzi,Antônio Ricardo.
The external morphology of the sensilla, including pores and permeable points on the cuticle of the antennae of adults of Neomegalotomus parvus (West.) (Heteroptera: Alydidae) was investigated with regard to their olfactory function. Behavioural evidence of olfaction, the importance of the different antennal segments in locating the host under still-air, and the responses of the insects to plants' scents and to pheromones in wind assays were also studied. With the scanning electronic microscope mechanoreceptor sensilla were found on the four segments of the antennae of N. parvus. The density of the sensilla was greater on the 4th segment. On the apical segment, sensilla with olfactory morphological traits were observed. Bugs with intact antennae located...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sensilla; Host plant; Behaviour; Antenna.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500012

Commercial gouache as a dye for termites in laboratory assays
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Brunow,Guilherme S.; Souza,Og de; Miramontes,Octavio.
Studies were performed to evaluate the suitability of a commercial gouache as an external marker for termite workers in lab assays. Dyed and non-dyed termites presented similar survival for the first 300 minutes since the experiment has began, and differed after this time. Mortality did not differ for termites dyed in two different colours from the same brand of gouache. It was concluded that commercial gouache could be a suitable marker for Cornitermes cumulans (Isoptera: Termitidae) termites, provided following restrictions were applied (i) tested hypotheses did not rely on times to death greater than 300 min., or (ii) experiments included "sham-dyed" termites (i. e., a "control" group with "dyed" individuals, rather than the tradicional control group...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological dyes; Behaviour; Lab assays; Isoptera.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500010