Our Team
Mihaela C. Ion
Researcher
Caitlin C. Bloomer
Researcher
Christopher A. Taylor
Senior Researcher
World of Crayfish® — global freshwater crayfish knowledge portal
World of Crayfish® is a global knowledge platform dedicated to freshwater crayfish: their distributions, their ecology, and the science needed to protect them. It brings together validated occurrence records from across the world and transforms them into structured, accessible, and reusable knowledge products, designed for researchers, conservation practitioners, students, and anyone who cares about the future of biodiversity.
The story begins in 2024, with a simple but ambitious idea: what if the global astacological community pooled its data into one shared, open resource? That idea became a call to action. Nearly 100 collaborators from dozens of countries responded, contributing records that collectively surpassed 100,000 referenced occurrences, a milestone that marked the formal birth and established it as the most comprehensive crayfish occurrence database in existence. From the beginning, the platform has been community-driven, shaped by volunteers, students, and researchers who believe that rigorous science and open knowledge belong together. This spirit is recognised and shared by the International Association of Astacology, within whose broader scientific community World of Crayfish® continues to grow.
As the platform matured, so did its ambitions. Simply displaying distributions was never the end goal. The real challenge was, and remains, turning raw occurrence data into knowledge that is structured, traceable, and genuinely useful across contexts. This led to the development of dedicated analytical pipelines that process occurrence records through a rigorous sequence of spatial, temporal, and accuracy checks before generating a rich set of species-level outputs: interactive distribution maps, range assessments and spatial metrics, biogeographic summaries, and downloadable species packages that bundle all artefacts for straightforward reuse in research and reporting.
Alongside these modern outputs, the platform preserves a traditional raw occurrence map: the direct visualisation of georeferenced records that many researchers rely on. Access to this layer is stratified by design. General visitors can explore spatial distributions in a generalised form, while registered scientists and contributors gain access to precise locality data. This is a deliberate conservation measure, as crayfish are sensitive animals and the unrestricted disclosure of exact locations carries real risks that responsible data stewardship cannot ignore.
One of the most forward-looking features of World of Crayfish® is the Species Exposure Bundle (SEB), a structured, machine-readable manifest that exposes all knowledge artefacts for a given species through a single, versioned endpoint. The SEB is designed to be read not only by humans, but by computational systems and artificial intelligence. In an era where AI tools are increasingly relied upon to answer scientific questions, the quality of those answers depends entirely on the quality of the underlying data. By organising biodiversity knowledge into clean, science-backed, and consistently structured outputs, World of Crayfish® is actively building the kind of infrastructure that allows AI systems to reason about species with accuracy and transparency, from general public queries to sophisticated scientific analyses. This is not a side feature. It is the direction in which the entire platform is evolving.
The platform takes a deliberate philosophical stance on data quality: it favours professional validation over crowd-sourcing. While many biodiversity portals rely on citizen science at scale, World of Crayfish® takes the opposite approach. Every record enters through a gated review process and is validated by experts before joining the production database. This makes growth slower, but it makes the knowledge trustworthy — and in conservation, trust is not optional.
Among the platform's conceptual innovations is the formalisation of local extinction as positive information. In most biodiversity databases, extinction is represented as absence — the simple lack of recent records. World of Crayfish® treats it differently: a documented extinction event has a date, a location, a geographic extent, and a full provenance trail, just like an occurrence record. This transforms extinction from silence into signal, and allows the platform to distinguish between places where a species was never found and places where it once lived but no longer does.
Everything you see here is conceived, built, and maintained at the Crayfish Research Centre (CRC), a dedicated research facility within the Institute for Advanced Environmental Research (ICAM) of the West University of Timișoara. This is the place where ideas take shape and day-to-day scientific work happens.
The technical backbone of World of Crayfish® is developed and maintained in partnership with the Computer Graphics and Interactive Systems Laboratory (CGIS) at the Technical University of Cluj-Napoca. This collaboration brings together ecological expertise and advanced geospatial engineering, two complementary strengths that make it possible to build research-grade infrastructure at the intersection of biodiversity science and digital technology. Together, we are committed to developing interdisciplinary solutions that neither institution could achieve alone.
World of Crayfish® is a living infrastructure in continuous development. Upcoming modules will expand automated analytical capabilities, deepen integration with global biodiversity frameworks, and broaden the range of AI-ready outputs available for each species. The platform is designed to grow with the science it serves.
The CRC operates on a model of collective effort, bringing together volunteers, students, and doctoral researchers united by a common purpose. We are actively welcoming new doctoral candidates. If you are considering a PhD at the intersection of freshwater ecology, biodiversity informatics, or conservation science, find out more here. We are equally open to research collaborations, data partnerships, and joint projects that push the boundaries of what structured biodiversity knowledge can do.
If you have published distribution data, regional literature that is underrepresented in the platform, or new occurrence records that can improve coverage, your contribution makes a direct difference. Join us, every record counts.
World of Crayfish® was not built by a software company. It was built by a biologist who thinks in code — in commuting hours, between doctoral committee meetings, during conference breaks, through voice transcripts dictated while walking against the Banat wind. Every scientific community carries its own symbols of continuity — objects, traditions, stories passed from one generation to the next, reminding us where we came from. This platform is something different: it looks forward. It is a bridge to a digital world where nature must have a place. We build that bridge one record at a time, and it is scientists, patient and persistent, who lay each stone.
Every species on this platform is backed by validated, traceable occurrence records, organised into standardised products that can be explored by humans and processed by machines alike.
Through the Species Exposure Bundle (SEB), each species exposes its full knowledge stack as a machine-readable manifest. We are building the data infrastructure that allows AI to answer biodiversity questions with scientific accuracy.
World of Crayfish® is more than a data platform. The act of pooling knowledge across borders has brought researchers together into a functioning scientific community, one that co-authors publications, shares expertise, and advances astacology as a collective endeavour.
World of Crayfish® can serve as an official repository for your occurrence datasets, including unpublished records. We issue accession codes to ensure your contribution is citable and permanently archived. Contact us for details.