|
|
|
| Registros recuperados: 12 | |
|
| |
|
|
| Matabos, Marjolaine; Cuvelier, D.; Brouard, J.; Shillito, B.; Ravaux, J.; Zbinden, M.; Barthelemy, D.; Sarradin, Pierre-marie; Sarrazin, Jozee. |
| Identifying the factors driving community dynamics in hydrothermal vent communities, and in particular biological interactions, is challenged by our ability to make direct observations and the difficulty to conduct experiments in those remote ecosystems. As a result, we have very limited knowledge on species’ behaviour and interactions in these communities and how they in turn influence community dynamics. Interactions such as competition or predation significantly affect community structure in vent communities, and video time-series have successfully been used to gain insights in biological interactions and species behaviour, including responses to short-term changes in temperature or feeding strategies. In this study, we combined in situ and ex situ... |
| Tipo: Text |
Palavras-chave: Abyss Box; Biological interactions; Deep-sea observatory; Eiffel Tower edifice; Feeding behaviour; Experimental research; Video imagery; Time series; Lucky Strike; Mid-Atlantic Ridge; 37 degrees 17 ' N; 32 degrees 16.3 ' W. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00266/37714/35732.pdf |
| |
|
|
| Machado Tamayo, R.; Jaime Ceballos, B.; Nodar, R.; Pérez, A.M.; Marrero, J.. |
| To achieve an appropriate handling of the natural productivity of a cultivation pond, it is required of the study of several aspects, inside which the primary productivity and the fertilization play a fundamental roll. Because the objective of this work was to study the influence of the fertilization with different reasons nitrogen-phosphorus (N:P) on the phytoplankton concentration in the Calisur shrimps farming. The relationships were evaluated (N:P) 5:1; 10:1; 15:1 and one that served as control. The commercial fertilizers urea and triple superphosphate were used (SPT), in conical cylinder tanks of fibber glass with a capacity of 500 l to the bleakness in the area of the ponds. The water was taken from the channel of supply of the farm and registered... |
| Tipo: Proceedings Paper |
Palavras-chave: Shrimp culture; Experimental research. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1949 |
| |
|
| |
|
|
| Vicente, N; Riva, A; Butler, A. |
| Breathing exchanges of Pinna nobilis L. are studied in situ and in the laboratory with two methods. First method consist in introducing samples of Pinna under a 40l plexiglass bell equipped with haps. The bell is positionned by diving. The consumption of oxygen is observed with water samples and the oxygen concentration is measured with an electronic oxymeter. Experiments which are carried out during nycthemeral cycles are reproduced in the laboratory with the same type of bell. A second method carry into effect an apparatus more sophisticated, who put into circulation a current of water in an airtight thermostated cellule, where a specimen of young Pinna is introduced. This sample is gradually adaptated to the conditions of the medium. Breathing... |
| Tipo: Text |
Palavras-chave: Pinna nobilis; Bivalvia; Temperature; Metabolism; Oxygen consumption; Experimental research; Breathing mixtures; Marine molluscs. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/1991/acte-1761.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Díaz Rebollido, P.M.. |
| Uno de los biocombustibles más comunes y conocidos es el biogás, el cual puede ser obtenido mediante la bioconversión de diferentes materias orgánicas. Aunque poco conocido en nuestro país, también se puede obtener biogás partiendo de las algas marinas mediante un adecuado manejo, sin que constituya un peligro ecológico. La biomasa de las algas se puede considerar como un sustrato comparable con los residuos agrícolas y residuales urbanos en el campo de la biometanización. El presente trabajo tiene como objetivo obtener gas combustible mediante la bioconversión del alga marina Ulva lactuca. Para esto, se determinó la composición físico – química de las algas y se diseñó un sistema de digestión para obtener biogás a nivel de laboratorio. Se logró obtener... |
| Tipo: Journal Contribution |
Palavras-chave: Algae; Biogas; Experimental research; Algae; Biogas; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_9262. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/3665 |
| |
|
| |
|
| |
|
| |
| Registros recuperados: 12 | |
|
|
|
