Speaker：Dr. Tina Huei-Ting Lin (School of Ocean and Earth Science and Technology(SOEST), University of Hawaii) Title：Dissolved organic carbon biogeochemistry: From the submarine basaltic aquifer to marginal seas Time：3/27 (Fri) 15:10 Location：2nd floor large lecture hall of IONTU     Preview Marine dissolved organic carbon (DOC) is a large fixed carbon [...]

Speaker：Dr. Yi-Jay Chang (NOAA Pacific Islands Fisheries Science Center) Title：Completing the puzzle: stock assessment for sustainable fisheries. Time：3/25 (Wed) 10:30-12:00 Location：2nd floor large lecture hall of IONTU (Lunch with candidate：12:00, Room 106 of IONTU)     Biographical Summary Yi-Jay Chang is a Fishery Scientist currently employed within the Stock Assessment [...]

Speaker：Dr. Jonny Wu (postdoc of Department of Geosciences, National Taiwan University) Title：Cenozoic plate reconstructions of East Asia: new subducted slab constraints from seismic tomography Time：3/19（Thu）10:20 – 12:00 Location：2nd floor large lecture hall of IONTU

Speaker：Prof. Ching-Sang Chiu (Department of Oceanography, Naval Postgraduate School) Title：Geoacoustic properties and sound propagation effects of the sand dunes on the northeastern slope of the South China Sea Time：3/12 (Thu) 14:20 – 15:20 Location：Room 232 of IONTU

Speaker：Prof. Christian Berndt (Head of the Research Unit Marine Geodynamics, GEOMAR, Germany.)                  Speaker’s personal website：http://www.geomar.de/en/mitarbeiter/fb4/gdy/cberndt/ Title：Dynamics of the gas hydrate system off Svalbard. Time：3/6 (Fri) 15:30~17:00 Location：2nd floor large lecture hall of IONTU

Speaker：Prof. Joe Wang (IONTU) Title：A new method to estimate surface currents from CODAR. Time：3/5 (Thu) 14:20 Location：Room 232 of IONTU

Aspecies-rich ecological community is composed of few abundant species and a large number of rare species. This universal phenomenon,known as species abundance distribution (SAD), hasintrigued a century of research to understand the underlying mechanism for a general law of community, yet remains controversial.In past, most of studies have treated SAD [...]

Abstract Developing realistic, three-dimensional ruptures corresponding to a regional plate convergence is difficult to accomplish directly through band-limited ground-motion observations. A potential indirect method for this evaluation is to use a tsunami simulation to verify the rupture model reversely because the initial conditions of the associated tsunamis are caused by [...]

After completing his studies in geophysics at Taiwan’s National Central University, Char-Shine Liu discovered the next chapter of his life in a book about the early days of the Deep Sea Drilling Program (DSDP). “I read 200,000,000 Years Beneath The Sea By Peter Briggs,“ he recalls. “I became excited by [...]

[Chang, T.Y.] Locating at the conjoint plate boundaries of the Philippine Sea and the Eurasian plates, Taiwan Island and its vicinity experience all the time a sever seismic activity. We benefit from the NSC marine instrumental center installed in the IO to develop Ocean Bottom Seismometer (OBS, now in series [...]

The TAIGER (Taiwan Integrated GEodynamic Research) project is a large Taiwan-US cooperative research project participated also by scientists from France, Japan and Philippine. This project uses seismic techniques to image the crustal and upper mantle structures of the Taiwan mountain belt and its surrounding seas for the purposes of understanding [...]

1. Taiwan-U.S.A. Samplings of sea floor sediments, rocks, corals, benthic biological samples and other samples at the bottom of sea are difficult tasks with most sampling equipment unable to see the object on the sea floor prior to sampling. Not knowing what is/are at the bottom of the sea, most [...]

Associate professor Chih-hao Hsieh from the Institute of Oceanography, NTU, leads his postdoc and student to develop an efficient semi-automatic zooplankton classification system. The results are published in the November issue of Marine Ecology Progress Series in 2012. This approach was successfully applied in the East China Sea ecosystem. In [...]

[Shiao JC] We develop species-specific probe and primer for rapid and high-throughput identification of tuna species. The probe and primer are designed to amplify the mitochondrial genes. This assay can be applied to fresh, alcohol preserved and canned samples. The whole procedure can be conducted within half-a-working day.

[Shiao JC] Through oceanographic surveys for several years, we find that the inshore area of the East China Sea, corresponding to the prohibited zone for trawling, had extremely high nutrient concentrations and low dissolved oxygen. The diversity index of demersal fish showed significantly negative correlations with nutrient concentrations and positive [...]

[Shiao JC] We analyzed otolith microstructures and stable isotope of deep sea fishes to reveal their ontogenetic vertical (downward) migration. Otolith microstructures and δ18O showed different migratory patterns, e.g., migration timing and distances, among species.  

  Miki et al. 2011 Recent molecular phylogenetic surveys show that parasites of phytoplankton may play an important role in the food web and ecosystem dynamics. For example, the ‘mycoloop’ exemplifies a novel trophic interaction among parasitic fungi, the chytrids, its host, diatoms, and consumer, zooplankton. Professor Miki and colleagues [...]

The vertically integrated Fbc (arrows) and Ebt2bc (colors) averaged over seven days of simulation from (a) the control run, (b) Exp1, (c) Exp2 and (d) Exp3. The blue rectangle enclosing the GPSC denotes the area for Ebt2bc and baroclinic energy integration. The blue open arrow and the number inside it [...]

Our research focuses on the relationship between marine environment and spatio-temporal patterns of large pelagic migratory species, and also develops fishery stock assessment models that incorporate the relationship and seasonal migration pattern of the population, which could improve the reliability of fishery management-related parameters. For example, spatial distributions of blue [...]

[Chang, Y.J., C.L. Sun] Crustaceans are a globally-distributed faunal group, found across all habitats in the world and the important fisheries resource for human. They are an ideal focal assemblage for assessment of the impacts of climatic change on their population dynamics. Using the pronghorn spiny lobster (Panulirus penicillatus) fishery [...]

Gas hydrate formation and associated biogeochemical processes is actively altering deep sea environments offshore SW Taiwan.  Abundant methane from organic carbon fermentation and thermogenic source fed assorted forms of microbial community at various depths in sediments as well as near the sea floor.  Methane migration could induce biogeochemical processes (Figure [...]

TSENG, CHUN-MAO My current research interests focus on marine biogeochemistry in relation with Environmental Change. The objective of research is the exchange across interfaces, such as the processes controlling air-water of CO2 and Hg. The recent study on gas-exchange flux dynamics of CO2 related to external forcing in the productive [...]