Category: Ocean Chemistry and Ecosystems

AOML interns collect a water sample in the Florida Keys National Marine Sanctuary during the 2014 Ocean Sampling Day event. Image Credit: NOAA

AOML Enlists Citizen Scientists for International Ocean Sampling Day 2015

Researchers with AOML’s Environmental Microbiology Lab joined a global effort to sample the smallest members of the ocean ecosystem on June 21 during International Ocean Sampling Day. Organized and led by the European Union’s MicroB3 organization and the Ocean Sampling Day Consortium, Ocean Sampling Day (OSD) is a simultaneous sampling campaign of the world’s oceans and coastal waters. These cumulative samples, related in time, space and environmental parameters, contribute to determine a baseline of global marine biodiversity and functions on the molecular level.

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Sunset aboard the R/V F.G. Walton Smith. Image credit: NOAA

April Hydrographic Survey Conducted in the Florida Straits

AOML physical oceanographers conducted a hydrographic survey along the 27th north parallel in the Florida Straits aboard the R/V F.G. Walton Smith on April 9-10, 2015. The cruise was conducted as part of the ongoing Western Boundary Time Series project, which is designed to quantify Florida Current volume transport and water mass changes. Scientists measured full water column values of salinity, temperature, and oxygen using CTD equipment. This survey and others help to calibrate daily estimates of the Florida Current volume transport.

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Gideon Butler of the University of San Diego lays a transect along a reef. Photo credit: Lauren Valentino, NOAA

AOML Marks 13th Trip Aboard Global Reef Expedition Cruise

During the months of March & April, AOML researchers participated in the Khaled bin Sultan Living Oceans Foundation’s Global Reef Expedition cruise which took place in the waters of the British Indian Ocean Territory. Some of the areas explored included the Maldives and the Chagos archipelago, home to the world’s largest Marine Protected Area. Aboard the R/V Golden Shadow and working under the theme “Science Without Borders,” the Global Reef Expedition team researches remote coral reef locations around the globe documenting their health to better understand which factors are crucial to reef resilience. AOML has participated in 12 Global Reef Expedition cruises since June 2012.

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Projected timing in years of the onset of annual severe bleaching for the Florida Reef Tract and the Bahamas at ~11 km resolution. Note that regions in red and orange, such as the Dry Tortugas, are projected to bleach annually starting in the early 2030s, while the more northern stretch of the Florida Keys near Biscayne Bay, are projected to bleach annually in the mid-2040s.

Study Provides Local-scale Projections of Coral Bleaching Over the Next 100 Years

In a new study published April 1 in Global Change Biology, NOAA oceanographers and colleagues have developed a new method to produce high-resolution projections of the range and onset of severe annual coral bleaching for reefs in the Gulf of Mexico and Caribbean

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March Numeric Nutrient Criteria Study Cruise collects data at Fowey Light for the Argo program. Image credit: NOAA

Numeric Nutrient Criteria Study Cruise

AOML scientists conducted a Numeric Nutrient Criteria Study cruise Wednesday and Thursday, March 18-19th in Biscayne Bay off of Broward and Miami-Dade Counties aboard the NOAA R/V Hildebrand. The study provides concurrent water column and coral reef status data for four coral assemblies off of Miami-Dade and Broward County. These results will be employed by the Florida Department of Environmental Protection to determine numeric nutrient criteria for the coastal waters of Southeast Florida.

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Fish species in NOAA’s Flower Garden Banks National Marine Sanctuary, off Texas. Photo Credit: NOAA

Gulf of Mexico Marine Food Web Changes Over the Decades

Scientists in the Gulf of Mexico now have a better understanding of how naturally-occurring climate cycles–as well as human activities–can trigger widespread ecosystem changes that ripple through the Gulf food web and the communities dependent on it, thanks to a new study published Saturday in the journal Global Change Biology.

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Miami residents enjoy a beautiful sunset over Biscayne Bay. Photo Credit: NOAA/AOML

NOAA Selects Biscayne Bay for Next Habitat Blueprint Focus Area

NOAA has selected South Florida’s Biscayne Bay as one of the next Habitat Focus Areas under NOAA’s Habitat Blueprint. Habitat Blueprint offers opportunities for NOAA to partner with organizations to address coastal and marine habitat loss and degradation issues. It provides a framework, which builds upon existing programs, prioritizes activities, and helps users act strategically and preventively [...]
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Grant Rawson stabilizes the equipment as it is loaded onto the R/V F.G. Walton Smith. Image Credit: NOAA

Hydrographic Survey Conducted in the Florida Straits

PhOD personnel Ryan Smith, Grant Rawson, and Jay Hooper conducted a hydrographic survey along 27N in the Florida Straits aboard the R/V F.G. Walton Smith on January 12-13, 2015. The cruise was part of the Western Boundary Time Series project, which is designed to quantify Florida Current volume transport and water mass changes. This survey and others help to calibrate daily estimates of the Florida Current volume transport derived from a submarine telephone cable deployed across the Straits. Divers also exchanged a project pressure gauge on the west side of the 27N section.

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AOML's CTD/O2/LADCP instrument package is recovered, secured, and ready for sampling following the first station at 27N in the Florida Straits. Image credit: NOAA

Hydrographic Survey Conducted in the Florida Straits

Ryan Smith, Robert Roddy, and Jay Hooper conducted a hydrographic survey along 27N in the Florida Straits aboard the R/V F.G. Walton Smith December 11-12, 2014. The cruise was performed as part of the Western Boundary Time Series project, which conducts regular surveys such as this to quantify Florida Current volume transport and water mass changes in the Straits of Florida. This survey and others also help to calibrate daily estimates of the Florida Current volume transport derived from a submarine telephone cable deployed across the Straits.

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