Gombessa Expeditions - Angelsharks & Picarel’s Breeding Grounds
What is the mysterious link between the extensive breeding nests of the Picarel fish, and the critically endangered Angelshark ?
Embarking on a journey of scientific discovery, Laurent Ballesta and his team lead a groundbreaking expedition along the rugged coastline of the Cap Corse peninsula, delving into the intricate relationship between the extensive breeding grounds of the Picarel fish and the precarious existence of the critically endangered Angelshark.
Supported by Blancpain, the Gombessa Expedition sets its sights on unraveling the enigmatic connection between these two species, whose fates are intertwined in the delicate balance of marine ecosystems. Stretching over hundreds of hectares on the seabed, the vast breeding nests of the Picarel fish serve as the epicenter of a phenomenon shrouded in mystery and complexity.
In the quest for understanding, the team employs cutting-edge techniques such as photogrammetry and lateral sonar, allowing for precise measurement and quantification of the Picarel breeding grounds. Astonishing findings reveal a staggering expanse of 160 hectares adorned with over 4 million nests, averaging three nests per square meter—a testament to the magnitude of this natural spectacle.
Throughout the expedition, the team documents the periodic and intense breeding season of the Picarel fish, a spectacle that not only shapes the dynamics of marine life but also heralds the rise of biodiversity within its vicinity. Each early spring witnesses a symphony of predation and reproduction, as the ecosystem teems with life in response to this natural phenomenon.
Yet, beneath the surface lies a deeper mystery—the elusive presence of the Angelshark, a ray-shaped predator once abundant in European waters but now teetering on the brink of extinction. Hiding amidst sandy seabeds and seagrass beds, the Angelshark employs a unique hunting strategy, burying itself in the sand to ambush passing prey.
Through meticulous observation and tagging efforts, the team begins to unravel the secrets of the Angelshark's biology, shedding light on its movements and behavior. However, the challenges of conservation loom large, as the Angelshark's dwindling population underscores the urgent need for action.
Driven by a dual purpose of scientific inquiry and conservation advocacy, the Gombessa Expedition spearheads efforts to raise awareness among fishermen and local communities. By fostering collaboration and encouraging the release of Angelsharks captured during fishing expeditions, the team endeavors to safeguard the future of these rare creatures.
As the expedition unfolds, each episode unveils new insights into the intricate web of life that binds the Picarel fish and the Angelshark, underscoring the interconnectedness of marine ecosystems and the imperative of preserving biodiversity for generations to come.
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