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February 2014 Archives

February 26, 2014

Seminar 2/26/14: Arik Diamant, Israel

Wednesday 26 February 2014 at 3:00pm

Title: “Out of nowhere: emerging fish parasites in a rapidly changing sea

Speaker: Arik Diamant, Ph.D.
Israel Oceanographic and Limnological Research Institute, National Center for Mariculture, Eilat, Israel

Host: Eric Schott, Ph.D.

Abstract:
Like many water bodies today, the Mediterranean Sea is subjected to a wide array of anthropogenic impacts. Since its inauguration in 1869, the Suez Canal, a man-made passage connecting the Mediterranean with the Red Sea, a crucial maritime link between Europe and east Asia, has become an effective conduit through which Erythrean biota invade the Mediterranean. Native and alien faunal elements have been mixing in the eastern Mediterranean (Levant) basin, creating unique species assemblages representing very different zoogeographical origins. This steady, persistent influx of alien species is increasingly transforming the Levant basin into a pseudo-province of the Red Sea. Although we have only fragmentary information on the roles of parasites in this process, it is clear that both native parasites and alien parasite species brought in with their invasive hosts are involved. The host-parasite interactions of some of these species were recently investigated in a study carried out on the Israeli and Turkish coasts. Microsporidia (phylum Microspora) were found to induce significant infections in their Mediterranean host populations – both in native and alien fish. In this presentation, we will look at the effects of such parasites on their hosts at the individual and host populations and the potential impact on the rapidly changing Mediterranean coastal marine ecosystems.

February 19, 2014

Seminar 2/19/14: Fredrika Moser, MDSG

Wednesday 19 February 2014 at 3:00pm

Title: “Maryland Sea Grant: What's Up?

Speaker: Fredrika Moser, Ph.D.
Maryland SeaGrant

Abstract:
This talk will provide IMET faculty, staff and students with an overview of the Maryland Sea Grant College Program (MDSG). I’ll divide the presentation into three parts. First, I’ll explain the MDSG’s structure and our funding cycles and fellowship opportunities. Second, I’ll provide a sense of how Maryland Sea Grant fits into the crowded science and policy landscape of the NOAA, and Chesapeake and Coastal Bays and how we work with scientists, extension agents, government policy makers, and other audiences. Third, I’ll give a few examples of MDSG-supported projects to illustrate ways we have tried to connect science to outreach. In addition, I’ll ask Adam Frederick to provide an update on his work for MDSG in education and connecting with IMET. I hope this seminar can be highly interactive so that you can ask questions and I can learn about IMET faculty, staff and students, how we can best work together, and perhaps your past experience with MDSG.

Host: J. Sook Chung, Ph.D.

February 12, 2014

IMET Town Hall 2/12/14

Wednesday 12 February 2014 at 3:00pm

In lieu of a Seminar Speaker, IMET hosted a Town Hall Session.

February 5, 2014

Seminar 2/5/14: Patricia Glibert, UMCES-HPL

Wednesday 5 February 2014 at 3:00pm

Title: “Ecosystem consequences of altered nutrient loads and ratios- more than just eutrophication

Speaker: Patricia Glibert, Ph.D.
UMCES-HPL

Abstract:
Eutrophication is occurring globally with the most well recognized responses in aquatic systems being hypoxia and harmful algal bloom (HAB) expansion. Yet, the responses of an ecosystem to changing nutrient loads are complicated for many reasons. The amounts, forms, and stoichiometric proportions of nutrient loads vary widely throughout the world in part due to increased nutrient loading (primarily nitrogen) on the one hand, and efforts to reduce nutrient loading (primarily phosphorus) on the other. In many regions, nitrogen loads are now also disproportionately increasing in forms that are chemically “reduced” (ammonium, urea, organic nitrogen) rather than chemically “oxidized” (nitrate). Together these trends mean that nutrient loads in many regions are trending toward higher N:P and higher proportions of “reduced” to “oxidized” nitrogen. This talk will address effects of these changes on a range of scales, beginning with the physiology of algae, and then touching on the consequences of these changes through the food web. Examples will be drawn from a range of estuaries worldwide.

Finally, several projections for the year 2100 related to nutrient loading and HABs will be presented, focusing on output of a coupled, climate-forced, global coastal ocean model for the NW European shelf and East China Seas. We used these models together with climate projections, as well as patterns in nutrient loading and known HAB physiology, to assess how habitat suitability for several HAB species may change. Results of the projections suggest increasing nutrient loads and changing stoichiometric proportions, together with climate changes, may promote regionally differing increases in HABs. These effects may be exacerbated with management efforts targeting single nutrient removal strategies.

Host: J. Sook Chung, Ph.D.

About February 2014

This page contains all entries posted to Institute of Marine & Environmental Technology in February 2014. They are listed from oldest to newest.

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