Narrator Pete Worthington, of Marathon, Florida, was a commercial fisher at the time of the interview with extensive experience in commercial fishing. His life in the Keys has provided him with a unique perspective on the local environment and the fishing industry. Over the years, Worthington has witnessed significant changes in Florida Bay, particularly noting a decline in water clarity and an increase in suspended algae particles. His firsthand observations and experiences have given him insight into the environmental shifts and challenges facing the region.

Billy Deans, a long-time resident of the Florida Keys, has been living in the area since December 1968. He moved to the region when he was in the ninth grade. Deans has always been drawn to the water, a fascination that began when he first crossed the Seven Mile Bridge and was captivated by the clarity of the water. He initially lived on Stock Island from 1968 to 1980, after which he moved to Sugarloaf, where he has resided since. Deans is a University of Florida graduate with a degree in Chemistry.

Narrator Robert Nathan, of Arlington, Virginia was an economist and recreational fisher at the time of the interview.  He has been fishing the Florida Keys since 1937.
 

Karl Lessard is a seasoned marine biologist whose career has been deeply intertwined with the ecological evolution of Florida Bay since the 1980s. With a career spanning over four decades, Lessard has dedicated his life to studying the intricate ecosystems of coastal waters, specializing in the dynamics of seagrass and algal populations. His extensive fieldwork and research have made him a respected figure in the scientific community, particularly in the context of marine conservation and environmental change.

Don DeMaria is a long-time resident of the Florida Keys, having moved there permanently in 1977, although he had been visiting the area since 1965. He initially lived in Key West before moving to Summerland around 1984. DeMaria is a college graduate and has been a commercial fisherman since 1972. His fishing experience extends to various locations, including Tortugas, Boca Grande, and Marquesas, with his work in Tortugas beginning when he moved to the Keys permanently. DeMaria's fishing methods include spearfishing and catching tropical fish.

Glenn Evans and Mark Nease are two divers/boat captains with extensive experience and knowledge about the marine ecosystem of the Florida Keys. Glenn Evans, a seasoned marine biologist, has spent a significant portion of his career studying the changes in the marine ecosystem, with a particular focus on water conditions such as clarity, algae blooms, and visibility. His work has contributed significantly to the understanding of the impact of environmental changes on marine life.

Ken Nedimeyer, a seasoned marine conservationist, has dedicated a significant portion of his career to studying and preserving marine ecosystems. His work, often in collaboration with prominent organizations such as the Nature Conservancy and the Center for Marine Conservation, has been pivotal in documenting and responding to changes within marine environments. Nedimeyer's expertise extends to a deep understanding of marine species, particularly the dynamics of lobster populations, which he has observed to be in decline due to habitat shrinkage and other environmental stressors.

Narrator Peter Gladding of Key West, Florida was a commercial fisherman at the time of the interview.
 

Joyce Newman is a resident of the Florida Keys with a rich personal history intertwined with the environmental and cultural fabric of the region. She was an environmentalist and recreational fisher at the time of the interview. She is a former public school teacher and a knowledgeable figure regarding the local ecology and the socio-economic dynamics of the area. Newman's tenure in the Florida Keys has allowed her to witness firsthand the evolution of the environment, giving her insights into the subtle and overt changes that have occurred over time.

Vicki Impallomeni is a wilderness guide and charter fishing captain with a rich history of navigating the waters of the Florida Keys. Her life has been deeply intertwined with the sea, having spent countless hours steering her vessel through the intricate waterways of this unique archipelago. Impallomeni's expertise extends beyond mere navigation; she possesses an intimate knowledge of the local marine environment, acquired through years of observation and interaction with the natural elements of the region.