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December 2, 2025

The U.S. Geological Survey (USGS) is developing the Aquatic Disease and Pathogen Repository (AquaDePTH)  to track, evaluate, and ultimately predict aquatic disease outbreaks across the nation.

The Aquatic Disease and Pathogen Repository, or AquaDePTH, is a public-facing interface that consolidates data to show the distribution of aquatic pathogens and diseases across the nation.

The Need for AquaDePTH: The Need for Collaboration

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Juvenile herring with classic signs of VHS
Crippling diseases such as Viral Hemorrhagic Septicemia and Infectious Hematopoietic Necrosis in finfish and Stony Coral Tissue Loss Disease in corals are being addressed independently by many entities. The photo above is of a herring fish exhibiting signs of Viral Hemorrhagic Septicemia.

Infectious disease poses a significant threat to commercially important and ecologically relevant fish and other aquatic animals. Federal entities, state agencies and universities invest millions of dollars annually to monitor and control diseases in aquatic animals, including finfish and invertebrates. These efforts are critical for protecting ecosystems, supporting aquaculture, and maintaining compliance with international trade regulations.  

 

However, these entities often conduct their work in isolation: performing their own sampling and analysis and housing their data internally. No robust infrastructure has existed to facilitate the tracking and sharing of this surveillance data on regional and national scales. AquaDePTH seeks to fill this void.  

A Collaborative Effort

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Image: Fish Face
This is a photo of a Pacific sand lance, an aquatic species studied by USGS researchers. The USGS is currently studying forage fish spawning, and how human development may be affecting their habitat.

The development of AquaDePTH  involves input from numerous partners via workgroups. This project is being led by three U.S. Geological Survey (USGS) centers, bringing together a wealth of aquatic science expertise: 

 

   Wetland and Aquatic Research Center in Gainesville, FL 

 

   Western Fisheries Research Center in Seattle, WA 

 

   Eastern Ecological Science Center in Kearneysville, WV 

 

Partnerships are a core component of AquaDePTH’s development. The USGS has developed partner workgroups to corral the data and ensure the system is designed to fit the diverse needs of aquatic animal health scientists and managers across the nation. 

Data Collection and Sharing

Datasets for AquaDePTH are being sourced from numerous partners. USGS will curate existing and newly acquired aquatic pathogen data in a single, sharable resource. Further, AquaDePTH aims to interoperate with individual pathogen databases, facilitating broad, synchronous data utilization across many systems. 

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map with points where common carp (a non-indigenous aquatic species) was spotted
This is a screen grab of the National Nonindigenous Aquatic Species Database.

Building on Established Frameworks

AquaDePTH expands on the foundational work of the USGS Nonindigenous Aquatic Species (NAS) database, a long-standing data repository that supplies managers and researchers with tools to track and evaluate the spread of aquatic invasive species. By leveraging the NAS framework, AquaDePTH will curate spatially-referenced, biogeographic accounts of priority diseases and pathogens, essential for nation-wide disease tracking. Also, with AquaDePTH built on the NAS platform, aquatic disease and invasive species data can be evaluated together, expanding our understanding of how diseases may hitchhike on invasives and spread across the landscape. 

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Chinook Salmon Fry with black spots on brown and gray body
Chinook salmon are one of the host species studied by USGS researchers. Crippling diseases such as Viral Hemorrhagic Septicemia and Infectious Hematopoietic Necrosis in finfish are being addressed independently by many entities.
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A brain coral infected with Stony Coral Tissue Loss Disease
Stony Coral Tissue Loss Disease, pictured above, in corals are being addressed independently by many different entities. AquaDePTH will help streamline this work and provide a platform for increased collaboration.

A Comprehensive Data Portal

One of the standout features of AquaDePTH will be its online portal. Users will be able to conduct custom data queries, generate distribution maps, and obtain data summaries through an intuitive data dashboard. This functionality will increase transparency and facilitate wider access to essential information regarding aquatic diseases and pathogens. 

To Infinity and Beyond!

Ultimately, AquaDepth will help scientists and managers align their disease surveillance efforts, evaluate trends in fish kills and pathogen occurrences, and develop models to predict future disease outbreaks. With this tool, managers will have greater control over the fate our fish and other aquatic resources!

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A sea star with lots of legs on a sandy bottom of the sea.
Sea stars are one of the host species studied by USGS researchers. Crippling diseases such as Sea Star Wasting Disease are being addressed independently by many entities.
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