# 11 newly discovered deep-sea species highlight Caribbean biodiversity Trinidad and Tobago's first deep-sea expedition uncovers 20 potential new marine species - **Source:** [Popular Science](https://brifing.si/source/cc3d313a-759c-4802-b881-fc8585f35ef9) - **Published:** 2026-09-06 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/e16094bd-0aee-4c53-817b-6aacd6869d2b ## Pioneering deep-sea exploration A team of Trinidad and Tobago marine biologists completed the nation's first comprehensive deep-sea survey using Schmidt Ocean Institute's R/V Falkor research vessel. The month-long expedition mapped 13% of the country's marine territory, documenting ecosystems at depths between 30-3,961 meters. Researchers collected over 700 specimens, including 20 potentially new species, significantly expanding scientific understanding of Caribbean deep-water biodiversity. ## Scientific impact The expedition's findings will expand the University of the West Indies' Zoology Museum collection by 12 times. Chief scientist Diva Amon emphasized how each discovery - whether species, ecosystem or behavior - enhances conservation capabilities. The research provides baseline data for protecting Trinidad's largely unexplored deep-sea environments, where 93% of waters lie beyond recreational diving depths. ## Remarkable species discoveries Among the findings was a suspected new sea star species at 3,961m depth and a rare manta ray fall at 1,025m. The team documented symbiotic relationships like brittle stars clinging to deep-sea corals, and observed top predators including king crabs. These discoveries highlight the Caribbean's rich but poorly understood deep-sea ecosystems. ## Unique deep-sea habitats Researchers explored chemosynthetic ecosystems around 25 newly discovered cold seeps - seafloor fissures releasing gas that supports unique lifeforms. Unlike sunlight-dependent systems, these habitats sustain species like eelpouts resting on chemosynthetic mussel beds. Trinidad's geological setting creates ideal conditions for such rare deep-water communities. ## Technological achievements The expedition utilized advanced ROV SuBastian technology to explore depths previously inaccessible to local scientists. Less than 0.001% of Trinidad's deep ocean had been studied before this project due to technical limitations. The ROV captured high-resolution imagery of species like ghost sharks near cold seeps at 2,355m depth. ## Ecological significance Findings include abundant cold-water coral ecosystems at 1,055m depth that host diverse marine life like squat lobsters. While shallow reefs are well-known, these deeper corals are more widespread yet understudied. The expedition documented how deep-sea falls (like the manta ray) create food sources in nutrient-scarce environments. ## Notable species behaviors Researchers observed fascinating adaptations like the black swallower fish's expandable stomach at 1,259m depth, visible through its translucent belly. At 148m in a UNESCO Biosphere Reserve, they documented lizardfish behavior. Such observations provide insights into survival strategies in extreme deep-sea conditions. ## Conservation implications This groundbreaking research establishes critical baseline data for protecting Trinidad's deep-sea biodiversity. The discoveries emphasize how little we know about deep-ocean ecosystems and their importance to marine health. The findings will guide local conservation policies and highlight the Caribbean's global marine significance. ## Sources covering this story - https://www.popsci.com/environment/11-vibrant-deep-sea-creatures-caribbean/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._