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| Groot, M. H. M.; Bogota, R. G.; Lourens, L. J.; Hooghiemstra, H.; Vriend, M.; Berrio, J. C.; Tuenter, E.; Van Der Plicht, J.; Van Geel, B.; Ziegler, M.; Weber, S. L.; Betancourt, A.; Contreras, L.; Gaviria, S.; Giraldo, C.; Gonzalez, N.; Jansen, J. H. F.; Konert, M.; Ortega, D.; Rangel, O.; Sarmiento, G.; Vandenberghe, J.; Van Der Hammen, T.; Van Der Linden, M.; Westerhoff, W.. |
| Here we developed a composite pollen-based record of altitudinal vegetation changes from Lake Fuquene (5 degrees N) in Colombia at 2540m elevation. We quantitatively calibrated Arboreal Pollen percentages (AP%) into mean annual temperature (MAT) changes with an unprecedented similar to 60-year resolution over the past 284 000 years. An age model for the AP% record was constructed using frequency analysis in the depth domain and tuning of the distinct obliquity-related variations to the latest marine oxygen isotope stacked record. The reconstructed MAT record largely concurs with the similar to 100 and 41-kyr (obliquity) paced glacial cycles and is superimposed by extreme changes of up to 7 to 10 degrees Celsius within a few hundred years at the major... |
| Tipo: Text |
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| Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00228/33889/32230.pdf |
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| Rombaut, G.; Dhert, P.; Vandenberghe, J.; Verschuere, L.; Sorgeloos, P.; Verstraete, W.. |
| The effect of bacterial strains on the growth rate of rotifers, Brachionus plicatilis, was determined under monoxenic conditions. The first objective was to obtain sterile rotifer cultures starting from rotifer resting eggs using merthiolate or glutaraldehyde as disinfectant. Sterile rotifer cultures were obtained, without affecting the hatching ability of the resting eggs, when 0.05 µl/l glutaraldehyde was used. This disinfection procedure was used to examine the effect of 20 bacterial strains, isolated from well-performing live-feed production systems, on the population growth rate of rotifers cultured under monoxenic conditions. Five out of the 20 bacterial strains tested were able to improve significantly the asexual reproduction of rotifers. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Aquaculture techniques; Bacterial diseases; Disease transmission; Disinfection; Hatching; Zooplankton; Zooplankton culture; Brachionus plicatilis; Rotifera. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4030 |
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| Vandenberghe, J.; Verdonck, L.; Robles-Arozarena, R.; Rivera, G.; Bolland, A.; Balladares, M.; Gomez-Gil, B.; Calderon, J.; Sorgeloos, P.; Swings, J.. |
| Several bacteriological surveys were performed from 1994 to 1996 at different <i>Litopenaeus vannamei</i> hatcheries (in Ecuador) and shrimp farms (in Mexico). Samples were taken from routine productions of healthy and diseased <i>L. vannamei</i> larvae, postlarvae, and their culture environment and from healthy and diseased juveniles and broodstock. In Ecuador, the dominant bacterial flora associated with shrimp larvae showing symptoms of zoea 2 syndrome, mysis mold syndrome, and bolitas syndrome has been determined. Strains were characterized by Biolog metabolic fingerprinting and identified by comparison to a database of 850 <i>Vibrio</i> type and reference strains. A selection of strains was further genotypically... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemotaxonomy Fingerprinting Genotypes Larvae Pathogenic bacteria Photobacterium damsela Shrimp culture Vibrio mimicus Litopenaeus vannamei Vibrio alginolyticus Vibrio harveyi Vibrio parahaemolyticus Ecuador ISE; Ecuador Mexico. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4037 |
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