400 ppm CO2 and Why Earth History Matters

ST. PETERSBURG, FL - Tonight at 7 PM our own Gene Domack will be speaking on at the Weedon Island Preserve”s lecture series: Salty Topics Marine Research.

His lecture is entitled:"400 ppm CO2 and Why Earth History Matters”  . See link and description below.

http://bit.ly/1BUCv18

 

Salty Topics Marine Research Speaker Series

400 parts per million CO2 and why Earth History Matters

Early in 2013 the earth’s level of atmospheric carbon dioxide surpassed the 400 ppmv mark for the first time since records have been kept. Yet in the ten years prior to this “event” global mean temperature have remained more or less static, despite the strong evidence linking increasing greenhouse gases to rising atmospheric temperatures. This “stasis in the global warming” record has challenged earth scientists to understand the sensitivity of the climate system to greenhouse gas increases. So far hypotheses suggest one of two explanations, both related to the interaction of the oceanic and atmospheric part of the climate system across the southern ocean. This talk for the general public will discuss the sensitivity issue of the earth’s climate system, how CO2 has changed over geologic time scales, and the role of the southern ocean in regulating the global climate system. Of importance will be the boundary state of the earth’s deep water mass in past periods of earth history and how that compares to today.

Speaker Biography:

Eugene Domack is a professor of Geologic Oceanography at the College of Marine Science-University of South Florida. He has participated in over 20 ocean going expeditions to the Antarctic margin, 17 as chief scientist. He has worked in ancient geologic strata in East Greenland, Svalbard, Namibia (Africa), and Tasmania (Australia). He is an elected Fellow of the American Association for the Advancement of Science and the American Geophysical Union. He also is the recipient of a J. S. Guggenheim Fellowship.

The speaker series is located at Weedon Island Cultural and Natural History Center at 1800 Weedon Drive NE, St Petersburg, FL 33702. Light refreshments generously donated from the Friends of Weedon Island (http://fowi.org) will be served prior to the 7 p.m. seminar. Please arrive 15 minutes early to sign in.

A Thorny Matter: Invasion of the Indo-Pacific Lionfish in the Western Atlantic

ST. PETERSBURG, FL - Lionfish were introduced by aquarium hobbyists to waters off the southeast coast of Florida in the 1980s.  Over the past ten years, these beautiful, ornate fish have rapidly spread across the entire tropical western Atlantic, from North Carolina to Venezuela, throughout the Caribbean and the Gulf of Mexico.  The population sizes in the invaded range commonly exceed those from their native habitats by several orders of magnitude.  With a seemingly insatiable appetite for our native fishes, and a lack of local predators and disease to keep them in check, Lionfish can have detrimental effects on the invaded marine ecosystem.  In this talk, we will review the history of the invasion, discuss the biology and ecology that has allowed them to be so successful, highlight some damaging impacts they can have, and finish with what scientists are doing to combat the problem.

Dr. Stallings is an Assistant Professor at the University of South Florida’s College of Marine Science.  His research seeks to understand the factors that affect the sizes of fish populations, including those that are of commercial and recreational importance.  His recent work on Lionfish has included the largest field experiment ever attempted to estimate the effort required to reduce their populations, analyzing removal data from the National Park Service, and lobbying the Florida Congress to heighten awareness and increase action from the state.

The speaker series is located at Weedon Island Cultural and Natural History Center at 1800 Weedon Drive NE, St Petersburg, FL 33702. Light refreshments generously donated from the Friends of Weedon Island (http://fowi.org) will be served prior to the 7 p.m. seminar. Please arrive 15 minutes early to sign in.

This program is recommended for an adult audience.   For more information click on this event.