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| Registros recuperados: 114 | |
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| Fleury, Pierre-gildas; Mingant, Christian; Castillo, A. |
| In order to have a better understanding of recessing in great scallop, Pecten maximus and consequently the causes of mortality at reseeding, this study has monitored, at different seasons, the dispersion and recessing of different sizes of juveniles (about 15, 30 and 45 mm, called small, medium and large) after seeding. Moreover, the aim was to see when small spat (15 mm) could be seeded, and thus reduce the costs of intermediate culture. Three monitoring approaches were used together: (1) continual observations by remote video camera, of a defined area (less than 1 m2) containing 10 scallops from each size group; (2) daily monitoring of behaviour with divers along three bottom lines, with 20 × 1 m2 plots each and nine marked scallops per plot; and (3) the... |
| Tipo: Text |
Palavras-chave: Behaviour; Great scallop (Pecten maximus); Season; Seeding; Size; Vitality of spat. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00326/43752/43284.pdf |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 & Mutafowa, 1914 (3,06; 90), Eremoplastron Kofoid & 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 |
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| 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: Folhetos |
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 |
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| 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: Folhetos |
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 |
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| Registros recuperados: 114 | |
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