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| Lebrato, Mario; Wang, Yiming V.; Tseng, Li-chun; Achterberg, Eric P.; Chen, Xue-gang; Molinero, Juan-carlos; Bremer, Karen; Westernstroeer, Ulrike; Soeding, Emanuel; Dahms, Hans-uwe; Kueter, Marie; Heinath, Verena; Joehnck, Janika; Konstantinou, Kostas I.; Yang, Yiing J.; Hwang, Jiang-shiou; Garbe-schoenberg, Dieter. |
| Shallow hydrothermal vents are of pivotal relevance for ocean biogeochemical cycles, including seawater dissolved heavy metals and trace elements as well as the carbonate system balance. The Kueishan Tao (KST) stratovolcano off Taiwan is associated with numerous hydrothermal vents emitting warm sulfur-rich fluids at so-called White Vents (WV) and Yellow Vent (YV) that impact the surrounding seawater masses and habitats. The morphological and biogeochemical consequences caused by a M5.8 earthquake and a C5 typhoon ("Nepartak") hitting KST (12th May, and 2nd-10th July, 2016) were studied within a 10-year time series (2009-2018) combining aerial drone imagery, technical diving, and hydrographic surveys. The catastrophic disturbances triggered landslides that... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00593/70518/68670.pdf |
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| Molinero, Juan Carlos; Tseng, Li-chun; Lopez Abbate, Celeste; Ramirez-romero, Eduardo; Hwang, Jiang-shiou. |
| Climate variability plays a central role in the dynamics of marine pelagic ecosystems shaping the structure and abundance changes of plankton communities, thereby affecting energy pathways and biogeochemical fluxes in the ocean. Here we have investigated complex interactions driven a climate-hydrology-plankton system in the southern East China Sea over the period 2000 to 2012. In particular, we aimed at quantifying the influence of climate phenomena playing out in tropical (El Nino 3.4) and middle-high latitudes (East Asia Winter Monsoon, EAWM, and Pacific Decadal Oscillation, PDO) on pelagic copepods. We found that the EAWM and El Nino 3.4 showed a non-stationary and non-linear relationship with local temperature variability. In the two cases, the... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00442/55361/56875.pdf |
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| Vandromme, Pieter; Schmitt, François G.; Souissi, Sami; Buskey, Edward J.; Strickler, J. Rudi; Wu, Cheng-han; Hwang, Jiang-shiou. |
| The swimming behavior of the ciliate Strobilidium sp. was recorded using cinematographic techniques. A density of 20 ciliates/ml was used under 4 experimental food conditions: 121, 625, 3025, and 15,125 cells/ml of the dinoflagellate Gymnodinium sp. In total, 100 trajectories per experiment were recorded and analyzed. We classified this ciliate’s swimming trajectories into categories we called “helix”, “non-helix”, and “break”. These swimming states were identified using automated recognition of helices, based on values of swimming trajectory angles. We performed a symbolic analysis of the succession of swimming states which enabled discrimination between food concentration experiments, and provided a more-complete characterization of the swimming... |
| Tipo: Text |
Palavras-chave: Protista; Plankton behavior; Swimming states; Symbolic dynamics; Simulation. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00070/18171/15730.pdf |
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