OpenSea Data is developing a buoy-based passive acoustic monitoring system designed to detect and report marine mammal presence in real time across the Mid-Atlantic coastal zone.
OpenSea Data exists to close a critical gap in coastal ocean observing. Marine mammals in the Mid-Atlantic — including endangered North Atlantic right whales — share busy shipping lanes with vessel traffic, yet real-time monitoring of their presence remains limited.
We are building a modular, scalable buoy system that integrates passive acoustic hydrophones, environmental sensors, and AIS vessel tracking to detect marine mammals and deliver that data in real time to IOOS regional observing networks, researchers, and resource managers.
OpenSea Data is a nonprofit organization. Our mission is scientific and conservation-driven — to build open, accessible infrastructure that protects marine life and supports the research community.
North Atlantic right whales number fewer than 370 individuals. Vessel strikes are one of the leading causes of their mortality. The Mid-Atlantic coastal zone — one of the busiest shipping corridors in the world — lacks a continuous, real-time acoustic monitoring presence capable of detecting marine mammals and alerting mariners and managers to their location.
Existing monitoring methods are intermittent, expensive, or limited in spatial coverage. Aerial and vessel surveys provide valuable snapshots but cannot deliver the continuous, real-time presence data that modern shipping traffic management and conservation response requires. OpenSea Data is building the infrastructure to change that.
Our system is built around a two-node buoy architecture deployed in the Mid-Atlantic. Each buoy integrates a scientifically validated suite of instruments working together to detect, record, and transmit marine mammal acoustic data in near real time.
Broadband passive acoustic recorder for detecting and logging marine mammal vocalizations across the full relevant frequency spectrum.
PRIMARY SENSOR · PASSIVE ACOUSTICAcoustic Doppler Current Profiler measuring current velocity profiles and water column structure throughout the deployment area.
PHYSICAL OCEANOGRAPHYHigh-accuracy recording of conductivity, temperature, and depth — essential context for acoustic propagation and species habitat assessment.
ENVIRONMENTAL SENSORTracks nearby vessel traffic in real time, enabling co-analysis of vessel proximity with acoustic detection events for strike risk assessment.
VESSEL TRACKING · AISData collected by each buoy node is transmitted via satellite and cellular links to a cloud-based processing pipeline, formatted for integration with IOOS regional data systems including MARACOOS. Detection events are logged, timestamped, and made available to partners and the public through open data channels.
OpenSea Data is currently in the planning and development phase. We have completed a full technical design for our two-node Mid-Atlantic deployment, specified our instrumentation suite, and are actively pursuing federal funding through the NOAA FY2026 Ocean Technology Transition Program.
We are building partnerships with leading academic institutions and IOOS Regional Associations to support field validation and data integration.
A note on transparency: We believe in being honest about where we are. OpenSea Data is an early-stage nonprofit. Our technology design is complete and our instrumentation suite is specified — but no buoys have been deployed yet. Everything on this site describes what we are building, not what is already operational.
Full two-node buoy system architecture finalized, including sensor integration, power systems, and data transmission design.
Scientific sensor selection complete: Ocean Sonics icListen, Nortek Signature 500, Sea-Bird MicroCAT CTD, and AIS receiver.
Federal funding application in progress under the NOAA FY2026 Ocean Technology Transition Program.
Deadline: July 15, 2026Actively developing partnerships with leading Mid-Atlantic research institutions and IOOS Regional Associations for field validation and data integration.
Initial two-node Mid-Atlantic deployment planned following successful grant award and partnership confirmation.
Eric Dunn founded OpenSea Data with a focus on building practical, scalable technology solutions for marine conservation challenges. Based in Long Branch, New Jersey, Eric brings a background in project management and systems development to the challenge of deploying real-time ocean observing infrastructure in the Mid-Atlantic.
We are actively building our scientific advisory team in partnership with leading Mid-Atlantic research institutions. If you are a researcher working in marine bioacoustics, ocean observing, or related fields and are interested in advising this project, we would welcome a conversation.
We are actively developing partnerships with leading Mid-Atlantic ocean observing institutions. The organizations listed below represent our target collaborators. These partnerships are in discussion — none are confirmed at this stage.
IOOS Regional Association for the Mid-Atlantic, providing the data infrastructure backbone for our planned detection data integration.
Partnership in DiscussionLeading ocean observing research group with extensive Mid-Atlantic field experience and expertise in autonomous ocean vehicle and buoy systems.
Partnership in DiscussionFederal science center with deep expertise in North Atlantic right whale acoustics, monitoring, and protected species management in the Mid-Atlantic.
Partnership in DiscussionWe are actively seeking research collaborators, institutional partners, and input from the scientific community. If OpenSea Data's mission aligns with your work, we would like to hear from you.
For academic institutions, IOOS partners, and research organizations interested in data integration, field validation, or advisory roles.
For journalists and media covering ocean conservation, marine technology, and coastal environmental monitoring.
For program officers, foundations, and funding organizations interested in supporting early-stage ocean observing infrastructure.
✉ info@openseadata.net · Long Branch, New Jersey