Jim Sullivan, Ph.D.

Executive Director Florida Atlantic University

  • Boca Raton FL

Jim Sullivan is an expert in biological and physical mechanisms controlling the spatial-temporal dynamics of plankton populations.

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Biography

Jim Sullivan’s research interests range from the biological and physical mechanisms controlling the spatial-temporal dynamics of phytoplankton/zooplankton populations in the coastal oceans, Harmful Algal Bloom (red tide) dynamics, bioluminescence in the ocean, and the development and use of optical and autonomous sampling instrumentation and analytical techniques needed to study these complex processes. Equipment he has developed or codeveloped includes a moored autonomous vertical profiler, a bathyphotometer, an in situ hyperspectral spectrophotometer and an in situ holographic microscope for 3D characterization of undisturbed particles in the ocean. Sullivan earned his master’s and doctorate in biological oceanography with specializations in phytoplankton physiology and ecology, as well as bio-optics and biophysics from University of Rhode Island - Graduate School of Oceanography (URI-GSO). Prior to joining Harbor Branch he was research faculty at URI-GSO and a Senior Oceanographer for WET Labs Inc.

Areas of Expertise

Sampling Instrumentation
Harmful Algal Bloom Dynamics
Spatial-temporal Dynamics of Plankton
Bioluminescence in the Ocean

Education

University of Rhode Island - Graduate School of Oceanography

Ph.D.

University of Rhode Island - Graduate School of Oceanography

M.S.

Selected Media Appearances

Understanding Blue-Green Algae

Stuart Magazine  online

2023-05-26

We hear about harmful algal blooms (HABS) often, but what are they really? And are they safe to swim in? We asked James Sullivan, executive director of Florida Atlantic University’s Harbor Branch Oceanographic Institute and an expert on algae and HABS, to fill us in.

According to Sullivan, HABS occur when algae—plant-like organisms that live in fresh water as well as the ocean—grow out of control and produce damaging toxins that are unhealthy for both marine life and humans. “The blue-green algae Floridians mostly worry about is freshwater algae that comes from ponds, lakes, and reservoirs like Lake Okeechobee and enters salt water through runoff,” says Sullivan. “When the algae get mixed into high-salinity water, they will essentially die and burst, releasing toxins into the water.”

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Jim Sullivan, PhD: Powerful Phytoplankton, True Science, And Creating Change (#71)

So You Want to Be a Marine Biologist Podcast  online

2022-01-12

Jim Sullivan has had a fascinating career starting with the smallest, and quite possibly the mightiest, organism in the sea, phytoplankton. From doing ground-breaking scientific research to inventing new oceanographic equipment to leading an oceanographic institute, Jim has had quite the diverse career. In this episode, Jim shares some amazing insights into marine science and the world in general, and he shares how he affected legislative changes that had some pretty big trickle down effects. We also chat about what true science really means, and why sometimes it can be really challenging to do. Jim also has one of the craziest sea stories I’ve ever heard, so stay tuned for that.

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Scientists concerned about chemicals used to keep Lake O algae out of St. Lucie River

TCPalm  online

2020-10-28

Algicides can be used to kill algae, said James M. Sullivan, executive director of Florida Atlantic University's Harbor Branch Oceanographic Institute at Fort Pierce and a member of the Florida Blue-Green Algae Task Force.

"But if they kill all algae and not specific-problem algae, well, that can be a problem," Sullivan said, because algae are the base of the aquatic food web.

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Selected Articles

Advances in defining fine- and micro-scale pattern in marine plankton

Aquatic Living Resources

Jim Sullivan et al.

2003

Since the June 1995 ICES Symposium on Fisheries and Plankton Acoustics in Aberdeen (MacLennan and Holliday, 1996) the use of acoustics for studying zooplankton has seen important advances. Acoustical monitoring of small-scale zooplankton distributions can now be done at intervals of a fraction of a minute. Resolution at vertical spatial scales of tens of centimeters is now easily achieved with commercially available sensors. Multiple-frequency echo-ranging sensors (TAPS™) have been deployed in an up-looking mode on the bottom, and on moorings looking up, down and horizontally. Real-time telemetry provides data on plankton distributions at ranges up to tens of meters from the sensors for periods of weeks to months. These sensors allow one to estimate total zooplankton biomass and the size-abundance spectrum of the animals in the water column at different depths and times. When a profiling CTD and multi-spectral optical sensors were used to define the physical environment and phytoplankton distributions near an acoustical zooplankton profiler, bold relationships were observed between measured spatial and temporal patterns. New methods in zooplankton acoustics are illustrated with data collected from these sensors while monitoring thin, sub-meter thick layers of plankton and diel migrations of benthopelagic crustaceans.

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