All fish, minus opah and some tunas, are cold blooded. Thus, their body temperatures are regulated by the environment around them. Every fish species has an optimal temperature range — not only for survival, but also for growth and reproduction. Fish exhibit control over their thermal environment by seeking waters that are closer to their temperature optimum when waters become too warm or too cool.
High and low temperatures that are lethal for a particular species determines the distribution and abundance of its population. With water temperatures trending upward — the result of climate change — many fish are responding by shifting their latitudinal range, expanding their range, and/or moving to
Do you know that Tampa Bay’s coastal ecosystems soak up and store carbon in a process called Coastal Blue Carbon? If not, come join us and Dr. David Tomasko for our Salty Topics speaker series!
Coastal Blue Carbon is a new term for carbon captured by living coastal and marine organisms and stored in coastal ecosystems. Mangroves, sea grass beds and salt marshes take up atmospheric carbon and store it in their systems throughout their life cycle. Also, these plants trap fine muddy sediments in their roots structures building thousands of years. Tampa Bay is a unique ecosystem as it is one of the few places in the U.S. to have three critical coastal habitats – mangroves, salt marsh, and seagrasses. Dr. David Tomasko, Principal Associate ESA, will share the results of the Tampa Bay Blue Carbon Project that was jointly funded by the Tampa Bay Estuary Program and Restore America’s Estuaries.
The presentation will include:
• Carbon storage and sequestration rates for Tampa Bay habitats
• Impacts of land use change, including sea-level rise and management actions, on carbon in the estuary
• How blue carbon ecosystem services can inform management decisions and provide additional incentives to support conservation and restoration and adaptive management
Southwest Florida is experiencing sea level rise. However, if we inform ourselves with the science and plan collectively as a community, we will be more resilient to any potential impacts. After a careful review of scientific research and associated literature, the Tampa Bay Climate Science Advisory Panel, an ad-hoc group of local scientific experts, has drafted a “Recommended Projection of Sea Level Rise in the Tampa Bay Region“. Come learn about the report, ask questions, and discuss next steps for our region at 7pm November 5th Salty Topics at Weedon Island Preserve, 1800 Weedon Drive NE, St. Petersburg, FL 33702.
The recommendation provides guidance on what sea level rise projections should be incorporated into local planning efforts. The Tampa Bay Regional Planning Council (TBRPC) has voted unanimously to accept the Recommendation for distribution to local governments. The TBRPC One Bay Resilient Communities Working Group will continue to facilitate the discussion of adaptation planning with planners, emergency managers and government leaders to identify practical and incremental solutions to address sea level rise.
Climate Change and associated Sea Level Rise are complex topics. To interpret the science, the Salty Topics Marine Research Seminar Series is pleased to present Dr. Don Chambers, University of South Florida College of Marine Science, presenting “Sea Level Rise: What do We Know?”
The program will begin at 6:30pm, Thursday, November 7th with light refreshments & a viewing of the Tampa Bay Estuary Program King Tide Traveling Photo Exhibit. The series is hosted at Weedon Island Preserve, 1800 Weedon Drive NE, St. Petersburg, FL 33702. Register online at https://sealevelrise2013.eventbrite.com/.
Dr. Chambers will discuss the various tools that have been used to observe sea level rise since the early 1700s and present a summary of what we know about sea level rise, especially new insight gleaned from nearly global satellite and in situ measurements over the last two decades. We will discuss the relationship of sea level rise to climate change and the melting of the Greenland and Antarctic Ice Sheets and discuss what we still need to understand in order to make more accurate predictions for future sea level rise.
Sea level rise, shifting seasons and extreme weather are some of the climate change buzzwords that have become increasingly common. But do we really understand what they mean or how they will impact our lifestyles? Two forums are being held that will engage the public in a conversation about these important issues. You are invited to join the discussion.
“Climate: Change the Conversation” will be held from 6:30 to 8:30 p.m. on Thursday, Oct. 24, at the Weedon Island Preserve Cultural and Natural History Center in St. Petersburg. A second forum will be offered from 2 to 4 p.m. on Saturday, Oct. 26, at the St. Petersburg College, Fine Arts Auditorium in Tarpon Springs.
The program will include an introductory presentation and small group discussion about the potential effects of climate change in the Tampa Bay region. Each interactive station will highlight one local aspect of climate change and its associated impacts.
A comprehensive study that investigated the sources and extent of nitrogen fallout on Tampa Bay shows that cars, trucks, and other mobile vehicles deposit four times more nitrogen oxide, or NOx, in Tampa Bay than power plants.
Overall, power plants are the major sources of air emissions in the bay area. But mobile sources have a disproportionately larger impact, because emissions from cars, trucks and boats are generated closer to the ground, and more of their emissions wind up in the bay. The tall stacks of power plants, on the other hand, send emissions higher into the atmosphere, where a substantial portion is carried outside the bay watershed.
Numeric nutrient criteria? What is that?
Not really a catchy phrase, that’s for sure. But this is an important concept that you may have been reading about in newspapers recently.
First, a little background. For years our standards for protecting the quality of inland and coastal waters have been based on qualitative descriptions, rather than hard numbers. However, a number of environmental organizations took exception to this approach, claiming that it was vague and that the Environmental Protection Agency was not fulfilling its role in fully implementing the Federal Clean Water Act. Those groups and the EPA said Florida needed specific, measurable numeric water quality standards that protected all bodies of water from environmental damage.
Tropical Storm Isaac has formed in the Caribbean and as of Thursday, August 23rd, the projected track puts nearly the entire state of Florida in the cone of uncertainty. Portions of South Florida could begin to feel impacts from the storm as early as Sunday.
Now is the time to review your hurricane action plan. Know your evacuation zone, prepare for your family and your home. If applicable, have a plan in place for your pets and your boat as well. Factsheets by Pinellas County Extension on Preparing your Pet, Preparing your Boat, and Staying Connected During Storm Season are available at http://bit.ly/NXw0P5 . For additional information on preparing your boat, view the video created by Florida Sea Grant at http://bit.ly/OX0MFg.
There is a new term being bantered about related to climate change – ocean acidification. Simply put, ocean acidification refers to a fundamental change in ocean water chemistry resulting from more carbon dioxide (CO2) being dissolved in seawater. This is a result of the increasing concentration of CO2 in the earth’s atmosphere due to our burning of fossil fuels (oil, gas, coal, etc.).
About one-third to one-half of the CO2 released into our atmosphere ends up in the oceans. The more CO2 in the water, the more acidic it becomes. Although scientists have been talking about increases in CO2 resulting in climate change for decades, the concept of ocean acidification is relatively new.
When CO2 dissolves in water it produces a weak acid called carbonic acid. It may be a weak acid, but it helps shape our surrounding geology in Florida. It is the mechanism that produces the notorious sinkholes found here (notorious if you happen to build your home near one). When CO2 is dissolved in rainwater it creates this weak acid which can, over 1000s of years, dissolve limestone. Limestone primarily consists of calcium carbonate which was originally from sea life such as clams, snails and other mollusks.
So what? Many marine organisms that produce calcium carbonate shells (clams, snails, sea urchins, etc) or skeletons (corals, certain types of phytoplankton, etc) are negatively impacted by increasing CO2. The change in water chemistry makes it harder for these organisms to secrete calcium carbonate. Also, acidic water actually dissolves calcium carbonate (remember the sinkholes mentioned above). Several researchers have reported that by the end of this century, coral reefs may erode faster than they can be rebuilt. Although scientists do not yet fully understand the ecological consequences of ocean acidification, it is feared that there could be widespread impacts on Earth’s marine ecosystems.